TS W filter-free mono class D audio power amplifier. Features. Applications. Description. DFN8 3 x 3 mm

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1 TS496.8 W filter-free mono class D audio power amplifier Features Operating from V CC =.4 V to 5.5 V Standby mode active low Output power:.8 W into 4 Ω and.7 W into 8 Ω with % THD+N maximum and 5 V power supply Output power:. W at 5 V or.7 W at 3. V into 4 Ω with % THD+N maximum Output power:.4 W at 5 V or.5 W at 3. V into 8 Ω with % THD+N maximum Adjustable gain via external resistors Low current consumption ma at 3 V Efficiency: 88% typical Signal to noise ratio: 85 db typical PSRR: 63 db typical at 7 Hz with 6 db gain PWM base frequency: 8 khz Low pop & click noise Thermal shutdown protection Available in DFN8 3 x 3 mm package Applications Cellular phones PDAs Notebook PCs Description The TS496 is a differential class-d BTL power amplifier. It can drive up to. W into a 4 Ω load and.4 W into an 8 Ω load at 5 V. It achieves outstanding efficiency (88% typ.) compared to standard AB-class audio amps. 3 4 DFN8 3 x 3 mm TS496IQT pinout EXPOSED PAD The gain of the device can be controlled via two external gain setting resistors. Pop & click reduction circuitry provides low on/off switch noise while allowing the device to start within 5 ms. A standby function (active low) enables the current consumption to be reduced to na typical January Doc ID 968 Rev 8 /

2 Contents TS496 Contents Absolute maximum ratings and operating conditions Application overview Electrical characteristics Electrical characteristics curves Application information Differential configuration principle Gain in typical application schematic Common-mode feedback loop limitations Low frequency response Decoupling of the circuit Wake-up time (t WU ) Shutdown time (t STBY ) Consumption in standby mode Single-ended input configuration Output filter considerations Several examples with summed inputs Example : dual differential inputs Example : one differential input plus one single-ended input Demonstration board Recommended footprint Package information Ordering information Revision history /44 Doc ID 968 Rev 8

3 TS496 Absolute maximum ratings and operating conditions Absolute maximum ratings and operating conditions Table. Absolute maximum ratings Symbol Parameter Value Unit V CC Supply voltage () () V i Input voltage (3). Caution: this device is not protected in the event of abnormal operating conditions such as short-circuiting between any one output pin and ground or between any one output pin and V CC, and between individual output pins.. All voltage values are measured with respect to the ground pin. 6 V to V CC T oper Operating free air temperature range -4 to + 85 C T stg Storage temperature -65 to +5 C T j Maximum junction temperature 5 C R thja Thermal resistance junction to ambient DFN8 package Pd Power dissipation Internally limited (4) ESD Human body model (5) Machine model (6) Charged device model (7) 3. The magnitude of the input signal must never exceed V CC +.3 V/ -.3 V. 4. Exceeding the power derating curves during a long period will provoke abnormal operation. 5. Human body model: a pf capacitor is charged to the specified voltage, then discharged through a.5 kω resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. 6. Machine model: a pf capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 Ω). This is done for all couples of connected pin combinations while the other pins are floating. 7. Charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. This is done for all pins. 8. The magnitude of the standby signal must never exceed V CC +.3 V/ -.3 V. V C/W kv V Latch-up Latch-up immunity ma V STBY Standby pin maximum voltage (8) to V CC V Lead temperature (soldering, sec) 6 C Table. Dissipation ratings Package Derating factor Power rating at 5 C Power rating at 85 C DFN8 mw/ C.5 W.3 W Doc ID 968 Rev 8 3/44

4 Absolute maximum ratings and operating conditions TS496 Table 3. Operating conditions Symbol Parameter Value Unit V CC Supply voltage () V IC Common mode input voltage range () V STBY Standby voltage input: (3) Device ON Device OFF.4 to 5.5 V.5 to V CC -.8 V.4 V STBY V CC V STBY.4 (4) R L Load resistor 4 Ω R thja Thermal resistance junction to ambient DFN8 package (5). For V CC between.4 V and.5 V, the operating temperature range is reduced to C T amb 7 C.. For V CC between.4v and.5v, the common mode input range must be set at V CC /. 3. Without any signal on V STBY, the device will be in standby. 4. Minimum current consumption is obtained when V STBY =. 5. When mounted on a 4-layer PCB. V 5 C/W 4/44 Doc ID 968 Rev 8

5 TS496 Application overview Application overview Table 4. External component information Component Functional description C S R in Input capacitor Bypass supply capacitor. Install as close as possible to the TS496 to minimize high-frequency ripple. A nf ceramic capacitor should be added to enhance the power supply filtering at high frequencies. Input resistor used to program the TS496 s differential gain (gain = 3 kω/r in with R in in kω). Because of common-mode feedback, these input capacitors are optional. However, they can be added to form with R in a st order high-pass filter with -3 db cut-off frequency = /(*π*r in *C in ). Table 5. Pin description Pin number Pin name Description STBY Standby input pin (active low) NC No internal connection pin 3 IN+ Positive input pin 4 IN- Negative input pin 5 OUT+ Positive output pin 6 VCC Power supply input pin 7 Ground input pin 8 OUT- Negative output pin Exposed pad Exposed pad can be connected to ground (pin 7) or left floating Doc ID 968 Rev 8 5/44

6 Application overview TS496 Figure. Typical application schematics Vcc In+ Differential Input Vcc + Rin - Rin Input capacitors are optional 4 3 Stdby 3k 5k 5k Internal Bias Oscillator PWM In- - In- In+ + 6 Vcc Out+ Output H Bridge Out- 5 8 Cs u SPEAKER 7 Vcc In+ Differential Input Vcc + Rin - Rin Input capacitors are optional 4 3 Stdby 3k 5k 5k Internal Bias Oscillator PWM In- - In- In+ + 6 Vcc Out+ Output H Bridge Out- 5 8 Cs u 4 Ohms LC Output Filter 5µH µf µf 5µH Load 7 3µH µf µf 3µH 8 Ohms LC Output Filter 6/44 Doc ID 968 Rev 8

7 TS496 Electrical characteristics 3 Electrical characteristics Table 6. Electrical characteristics at V CC = +5 V, with = V, V icm =.5 V, and T amb = 5 C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo Output offset voltage No input signal, R L = 8 Ω ma na 3 5 mv P out Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω W THD + N Efficiency PSRR CMRR Total harmonic distortion + noise P out = 85 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz P out = W RMS, G = 6 db, f = khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out = W RMS, R L = 4 Ω + 5 µh P out =. W RMS, R L = 8 Ω+ 5 µh Power supply rejection ratio with inputs grounded () f = 7 Hz, R L = 8 Ω, G =6dB, V ripple = mv pp 63 db Common mode rejection ratio f = 7 Hz, R L = 8 Ω, G = 6 db, ΔVic = mv pp 57 db % % Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 36 khz SNR Signal to noise ratio (A weighting), P out =. W, R L = 8 Ω 73kΩ R in 3kΩ kΩ R in R in 85 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 7/44

8 Electrical characteristics TS496 Table 6. Electrical characteristics at V CC = +5 V, with = V, V icm =.5 V, and T amb = 5 C (unless otherwise specified) (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. Standby mode is active when V STBY is tied to.. Dynamic measurements - *log(rms(v out )/rms(v ripple )). V ripple is the superimposed sinusoidal signal to V CC at f = 7 Hz. 8/44 Doc ID 968 Rev 8

9 TS496 Electrical characteristics Table 7. Electrical characteristics at V CC = +4. V with = V, V icm =. V and T amb = 5 C (unless otherwise specified) () Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo Output offset voltage No input signal, R L = 8 Ω. 3 ma na 3 5 mv P out Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω W THD + N Efficiency PSRR CMRR Total harmonic distortion + noise P out = 6 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz P out = 7 mw RMS, G = 6 db, f = khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out =.45 W RMS, R L = 4 Ω + 5 µh P out =.9 W RMS, R L = 8 Ω+ 5 µh Power supply rejection ratio with inputs grounded (3) f = 7 Hz, R L = 8 Ω, G =6dB, V ripple = mv pp 63 Common mode rejection ratio 57 db f = 7 Hz, R L = 8 Ω, G = 6 db, ΔVic = mv pp % % db Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 36 khz SNR Signal to noise ratio (A-weighting) P out =.8 W, R L = 8 Ω 73kΩ R in 3kΩ R in 37kΩ R in 85 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 9/44

10 Electrical characteristics TS496 Table 7. Electrical characteristics at V CC = +4. V with = V, V icm =. V and T amb = 5 C (unless otherwise specified) () (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. All electrical values are guaranteed with correlation measurements at.5 V and 5 V.. Standby mode is active when V STBY is tied to. 3. Dynamic measurements - *log(rms(v out )/rms(v ripple )). V ripple is the superimposed sinusoidal signal to V CC at f = 7 Hz. /44 Doc ID 968 Rev 8

11 TS496 Electrical characteristics Table 8. Electrical characteristics at V CC = +3.6 V with = V, V icm =.8 V, T amb = 5 C (unless otherwise specified) () Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo Output offset voltage No input signal, R L = 8 Ω.8 ma na 3 5 mv P out Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω W THD + N Efficiency PSRR CMRR Total harmonic distortion + noise P out = 45 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz P out = 5 mw RMS, G = 6 db, f = khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out = W RMS, R L = 4 Ω + 5 µh P out =.65 W RMS, R L = 8 Ω+ 5 µh Power supply rejection ratio with inputs grounded (3) f = 7 Hz, R L = 8 Ω, G =6dB, V ripple = mv pp 6 db Common mode rejection ratio 56 db f = 7 Hz, R L = 8 Ω, G = 6 db, ΔVic = mv pp % % Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 36 khz SNR Signal to noise ratio (A-weighting) P out =.6 W, R L = 8 Ω 73kΩ R in 3kΩ R in 37kΩ R in 83 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 /44

12 Electrical characteristics TS496 Table 8. Electrical characteristics at V CC = +3.6 V with = V, V icm =.8 V, T amb = 5 C (unless otherwise specified) () (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. All electrical values are guaranteed with correlation measurements at.5 V and 5 V.. Standby mode is activated when V STBY is tied to. 3. Dynamic measurements - *log(rms(v out )/rms(v ripple )). V ripple is the superimposed sinusoidal signal to V CC at f = 7 Hz. /44 Doc ID 968 Rev 8

13 TS496 Electrical characteristics Table 9. Electrical characteristics at V CC = +3. V with = V, V icm =.5 V, T amb = 5 C (unless otherwise specified) () Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo Output offset voltage No input signal, R L = 8 Ω.9.7 ma na 3 5 mv P out Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω W THD + N Efficiency PSRR CMRR Total harmonic distortion + noise P out = 3 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz P out = 35 mw RMS, G = 6 db, f = khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out =.7 W RMS, R L = 4 Ω + 5 µh P out =.45 W RMS, R L = 8 Ω+ 5 µh Power supply rejection ratio with inputs grounded (3) f = 7 Hz, R L = 8 Ω, G =6dB, V ripple = mv pp 6 Common mode rejection ratio 54 db f = 7 Hz, R L = 8 Ω, G = 6 db, ΔV ic =mv pp % % db Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 36 khz SNR Signal to noise ratio (A-weighting) P out =.4 W, R L = 8 Ω 73kΩ R in 3kΩ R in 37kΩ R in 8 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 3/44

14 Electrical characteristics TS496 Table 9. Electrical characteristics at V CC = +3. V with = V, V icm =.5 V, T amb = 5 C (unless otherwise specified) () (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. All electrical values are guaranteed with correlation measurements at.5 V and 5 V.. Standby mode is active when V STBY is tied to. 3. Dynamic measurements - *log(rms(v out )/rms(v ripple )). V ripple is the superimposed sinusoidal signal to V CC at f = 7 Hz. 4/44 Doc ID 968 Rev 8

15 TS496 Electrical characteristics Table. Electrical characteristics at V CC = +.5 V with = V, V icm =.5V, T amb = 5 C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo Output offset voltage No input signal, R L = 8 Ω.7.4 ma na 3 5 mv P out Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω W THD + N Efficiency PSRR CMRR Total harmonic distortion + noise P out = 8 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz P out = mw RMS, G = 6 db, f = khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out =.47 W RMS, R L = 4 Ω + 5 µh P out =.3 W RMS, R L = 8 Ω+ 5 µh.5 Power supply rejection ratio with inputs grounded () f = 7 Hz, R L = 8 Ω, G = 6 db, V ripple = mv pp 6 db Common mode rejection ratio 54 db f = 7 Hz, R L = 8 Ω, G = 6 db, ΔV ic = mv pp Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 36 khz SNR Signal to noise ratio (A-weighting) P out =.3 W, R L = 8 Ω 73kΩ R in kΩ R in 37kΩ R in % % 8 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 5/44

16 Electrical characteristics TS496 Table. Electrical characteristics at V CC = +.5 V with = V, V icm =.5V, T amb = 5 C (unless otherwise specified) (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. Standby mode is active when V STBY is tied to.. Dynamic measurements - *log(rms(v out )/rms(v ripple )). V ripple is the superimposed sinusoidal signal to V CC at f = 7 Hz. 6/44 Doc ID 968 Rev 8

17 TS496 Electrical characteristics Table. Electrical characteristics at V CC +.4 V with = V, V icm =. V, T amb = 5 C (unless otherwise specified) Symbol Parameter Min. Typ. Max. Unit I CC Supply current No input signal, no load I STBY Standby current () No input signal, V STBY = V oo P out THD + N Efficiency CMRR Output offset voltage No input signal, R L = 8 Ω Output power, G = 6 db THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 4 Ω THD = % max, f = khz, R L = 8 Ω THD = % max, f = khz, R L = 8 Ω Total harmonic distortion + noise P out = 5 mw RMS, G = 6 db, Hz < f < khz R L = 8 Ω + 5 µh, BW < 3 khz Efficiency P out =.38 W RMS, R L = 4 Ω + 5 µh P out =.5 W RMS, R L = 8 Ω+ 5 µh.7 ma na 3 mv W % Common mode rejection ratio f = 7 Hz, R L = 8 Ω, G = 6 db, ΔV ic = mv pp 54 db Gain Gain value (R in in kω) V/V R STBY Internal resistance from standby to kω F PWM Pulse width modulator base frequency 8 khz SNR Signal to noise ratio (A-weighting) P out =.5 W, R L = 8 Ω 73kΩ R in kΩ R in 37kΩ R in % 8 db t WU Wake-up time 5 ms t STBY Standby time 5 ms Doc ID 968 Rev 8 7/44

18 Electrical characteristics TS496 Table. Electrical characteristics at V CC +.4 V with = V, V icm =. V, T amb = 5 C (unless otherwise specified) (continued) Symbol Parameter Min. Typ. Max. Unit V N Output voltage noise f = Hz to khz, G = 6 db Unweighted R L = 4 Ω A-weighted R L = 4 Ω Unweighted R L = 8 Ω A-weighted R L = 8 Ω Unweighted R L = 4 Ω + 5 µh A-weighted R L = 4 Ω + 5 µh Unweighted R L = 4 Ω + 3 µh A-weighted R L = 4 Ω + 3 µh Unweighted R L = 8 Ω + 3 µh A-weighted R L = 8 Ω + 3 µh Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter Unweighted R L = 4 Ω + filter A-weighted R L = 4 Ω + filter μv RMS. Standby mode is active when V STBY is tied to. 8/44 Doc ID 968 Rev 8

19 TS496 Electrical characteristics 3. Electrical characteristics curves The graphs shown in this section use the following abbreviations. R L + 5 μh or 3 μh = pure resistor + very low series resistance inductor Filter = LC output filter ( µf + 3 µh for 4 Ω and. 5µF + 6 µh for 8 Ω) All measurements are done with C S = µf and C S = nf (see Figure ), except for the PSRR where C S is removed (see Figure 3). Figure. Schematic used for test measurements uf Vcc nf Cs + Cs Cin Cin Rin 5k Rin 5k Out+ In+ TS496 In- Out- 5uH or 3uH or LC Filter 4 or 8 Ohms RL 5th order 5kHz low pass filter Audio Measurement Bandwidth < 3kHz Figure 3. Schematic used for PSSR measurements nf Cs Hz to khz Vcc 4.7uF 4.7uF Rin 5k Rin 5k Out+ In+ TS496 In- Out- 5uH or 3uH or LC Filter 4 or 8 Ohms RL 5th order 5kHz low pass filter 5th order 5kHz low pass filter Reference RMS Selective Measurement Bandwidth=% of Fmeas Doc ID 968 Rev 8 9/44

20 Electrical characteristics TS496 Figure 4. Current consumption vs. power supply voltage Figure 5. Current consumption vs. standby voltage Current Consumption (ma).5 No load Tamb=5 C Power Supply Voltage (V) Current Consumption (ma) Vcc = 5V No load Tamb=5 C Standby Voltage (V) Figure 6. Current consumption vs. standby voltage Figure 7. Output offset voltage vs. common mode input voltage Current Consumption (ma) Vcc = 3V No load Tamb=5 C Standby Voltage (V) Voo (mv) Vcc=.5V Vcc=5V Vcc=3.6V G = 6dB Common Mode Input Voltage (V) Figure 8. Efficiency vs. output power Figure 9. Efficiency vs. output power Efficiency (%) Efficiency Power Dissipation Vcc=5V RL=4Ω + 5μH F=kHz THD+N % Output Power (W) Power Dissipation (mw) Efficiency (%) Efficiency Power Dissipation Vcc=3V 5 RL=4Ω + 5μH F=kHz THD+N % Output Power (W) 5 Power Dissipation (mw) /44 Doc ID 968 Rev 8

21 TS496 Electrical characteristics Figure. Efficiency vs. output power Figure. Efficiency vs. output power 5 75 Efficiency (%) 8 6 Efficiency 4 Power Dissipation 5 Vcc=5V RL=8Ω + 5μH F=kHz THD+N % Output Power (W) Power Dissipation (mw) Efficiency (%) 8 6 Efficiency 4 5 Power Vcc=3V Dissipation RL=8Ω + 5μH F=kHz THD+N % Output Power (W) 5 Power Dissipation (mw) Figure. Output power vs. power supply voltage Figure 3. Output power vs. power supply voltage Output power (W) RL = 4Ω + 5μH F = khz BW < 3kHz THD+N=% THD+N=% Output power (W) RL = 8Ω + 5μH F = khz BW < 3kHz THD+N=% THD+N=% Vcc (V) Vcc (V) Figure 4. PSRR vs. frequency Figure 5. PSRR vs. frequency PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 4Ω + 5μH ΔR/R.% Vcc=5V, 3.6V,.5V PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 4Ω + 3μH ΔR/R.% Vcc=5V, 3.6V,.5V k -8 k Doc ID 968 Rev 8 /44

22 Electrical characteristics TS496 Figure 6. PSRR vs. frequency Figure 7. PSRR vs. frequency PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 4Ω + Filter ΔR/R.% Vcc=5V, 3.6V,.5V PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 8Ω + 5μH ΔR/R.% Vcc=5V, 3.6V,.5V k -8 k Figure 8. PSRR vs. frequency Figure 9. PSRR vs. frequency PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 8Ω + 3μH ΔR/R.% Vcc=5V, 3.6V,.5V PSRR (db) Vripple = mvpp Inputs = Grounded G = 6dB, Cin = 4.7μF RL = 8Ω + Filter ΔR/R.% Vcc=5V, 3.6V,.5V k -8 k Figure. PSRR vs. common mode input voltage Figure. CMRR vs. frequency PSRR(dB) Vripple = mvpp F = 7Hz, G = 6dB RL 4Ω + 5μH Vcc=.5V Vcc=3.6V CMRR (db) - -4 RL=4Ω + 5μH ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V -6-7 Vcc=5V Common Mode Input Voltage (V) -6 k /44 Doc ID 968 Rev 8

23 TS496 Electrical characteristics Figure. CMRR vs. frequency Figure 3. CMRR vs. frequency CMRR (db) - -4 RL=4Ω + 3μH ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V CMRR (db) - -4 RL=4Ω + Filter ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V -6-6 k k Figure 4. CMRR vs. frequency Figure 5. CMRR vs. frequency CMRR (db) - -4 RL=8Ω + 5μH ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V CMRR (db) - -4 RL=8Ω + 3μH ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V -6-6 k k Figure 6. CMRR vs. frequency Figure 7. CMRR vs. common mode input voltage CMRR (db) - -4 RL=8Ω + Filter ΔVicm=mVpp ΔR/R.% Cin=4.7μF Vcc=5V, 3.6V,.5V CMRR(dB) ΔVicm = mvpp F = 7Hz G = 6dB RL 4Ω + 5μH Vcc=.5V Vcc=3.6V -6 k -6 Vcc=5V Common Mode Input Voltage (V) Doc ID 968 Rev 8 3/44

24 Electrical characteristics TS496 Figure 8. THD+N vs. output power Figure 9. THD+N vs. output power THD + N (%) RL = 4Ω + 5μH F = Hz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V THD + N (%) RL = 4Ω + 3μH or Filter F = Hz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V... E-3.. Output Power (W) 3. E-3.. Output Power (W) 3 Figure 3. THD+N vs. output power Figure 3. THD+N vs. output power THD + N (%) RL = 8Ω + 5μH F = Hz G = 6dB BW < 3kHz Vcc=.5V Vcc=5V Vcc=3.6V THD + N (%) RL = 8Ω + 3μH or Filter F = Hz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V... E-3.. Output Power (W). E-3.. Output Power (W) Figure 3. THD+N vs. output power Figure 33. THD+N vs. output power THD + N (%) RL = 4Ω + 5μH F = khz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V THD + N (%) RL = 4Ω + 3μH or Filter F = khz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V.. E-3.. Output Power (W) 3 E-3.. Output Power (W) 3 4/44 Doc ID 968 Rev 8

25 TS496 Electrical characteristics Figure 34. THD+N vs. output power Figure 35. THD+N vs. output power THD + N (%) RL = 8Ω + 5μH F = khz G = 6dB BW < 3kHz Vcc=.5V Vcc=5V Vcc=3.6V THD + N (%) RL = 8Ω + 3μH or Filter F = khz G = 6dB BW < 3kHz Vcc=5V Vcc=3.6V Vcc=.5V.. E-3.. Output Power (W) E-3.. Output Power (W) Figure 36. THD+N vs. frequency Figure 37. THD+N vs. frequency THD + N (%). RL=4Ω + 5μH Bw < 3kHz Vcc=5V Po=.4W THD + N (%). RL=4Ω + 3μH or Filter Bw < 3kHz Vcc=5V Po=.4W Po=.7W Po=.7W. 5 k. 5 k Figure 38. THD+N vs. frequency Figure 39. THD+N vs. frequency THD + N (%). RL=4Ω + 5μH Bw < 3kHz Vcc=3.6V Po=.85W THD + N (%). RL=4Ω + 3μH or Filter Bw < 3kHz Vcc=3.6V Po=.85W. 5 Po=.4W k. 5 Po=.4W k Doc ID 968 Rev 8 5/44

26 Electrical characteristics TS496 Figure 4. THD+N vs. frequency Figure 4. THD+N vs. frequency THD + N (%). RL=4Ω + 5μH Bw < 3kHz Vcc=.5V Po=.35W THD + N (%). RL=4Ω + 3μH or Filter Bw < 3kHz Vcc=.5V Po=.35W. 5 Po=.7W k. 5 Po=.7W k Figure 4. THD+N vs. frequency Figure 43. THD+N vs. frequency THD + N (%). RL=8Ω + 5μH Bw < 3kHz Vcc=5V Po=.85W THD + N (%). RL=8Ω + 3μH or Filter Bw < 3kHz Vcc=5V Po=.85W Po=.4W Po=.4W. 5 k. 5 k Figure 44. THD+N vs. frequency Figure 45. THD+N vs. frequency THD + N (%). RL=8Ω + 5μH Bw < 3kHz Vcc=3.6V Po=.45W THD + N (%). RL=8Ω + 3μH or Filter Bw < 3kHz Vcc=3.6V Po=.45W Po=.W Po=.W. 5 k. 5 k 6/44 Doc ID 968 Rev 8

27 TS496 Electrical characteristics Figure 46. THD+N vs. frequency Figure 47. THD+N vs. frequency THD + N (%). RL=8Ω + 5μH Bw < 3kHz Vcc=.5V Po=.W Po=.8W THD + N (%). RL=8Ω + 3μH or Filter Bw < 3kHz Vcc=.5V Po=.W Po=.8W. 5 k. 5 k Figure 48. Gain vs. frequency Figure 49. Gain vs. frequency 8 8 Differential Gain (db) 6 4 RL=4Ω + 5μH Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Differential Gain (db) 6 4 RL=4Ω + 3μH Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Figure 5. Gain vs. frequency Figure 5. Gain vs. frequency 8 8 Differential Gain (db) 6 4 RL=4Ω + Filter Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Differential Gain (db) 6 4 RL=8Ω + 5μH Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Doc ID 968 Rev 8 7/44

28 Electrical characteristics TS496 Figure 5. Gain vs. frequency Figure 53. Gain vs. frequency 8 8 Differential Gain (db) 6 4 RL=8Ω + 3μH Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Differential Gain (db) 6 4 RL=8Ω + Filter Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Figure 54. Gain vs. frequency Figure 55. Startup and shutdown times V CC =5V,, C in = µf (5ms/div) 8 Vo Differential Gain (db) 6 4 RL=No Load Vin=5mVpp Cin=μF Vcc=5V, 3.6V,.5V k Vo Standby Vo-Vo Figure 56. Startup and shutdown times Figure 57. V CC = 3V, G = 6dB, C in = µf (5ms/div) Startup and shutdown times V CC = 5V, G = 6dB, C in = nf (5ms/div) Vo Vo Vo Vo Standby Standby Vo-Vo Vo-Vo 8/44 Doc ID 968 Rev 8

29 TS496 Electrical characteristics Figure 58. Startup and shutdown times Figure 59. V CC = 3V, G = 6dB, C in = nf (5ms/div) Startup and shutdown times V CC = 5V, G = 6dB, No C in (5ms/div) Vo Vo Vo Vo Standby Standby Vo-Vo Vo-Vo Figure 6. Startup and shutdown times V CC = 3V, G = 6dB, No C in (5ms/div) Vo Vo Standby Vo-Vo Doc ID 968 Rev 8 9/44

30 Application information TS496 4 Application information 4. Differential configuration principle The TS496 is a monolithic, fully differential input/output class D power amplifier. The TS496 also includes a common-mode feedback loop that controls the output bias value to average it at V CC / for any DC common-mode input voltage. This allows the device to always have a maximum output voltage swing, and by consequence, maximize the output power. Moreover, as the load is connected differentially compared to a single-ended topology, the output is four times higher for the same power supply voltage. The advantages of a fully differential amplifier are: high PSRR (power supply rejection ratio). high common mode noise rejection. virtually zero pop without additional circuitry, giving a faster start-up time compared to conventional single-ended input amplifiers. easier interfacing with differential output audio DAC. no input coupling capacitors required because of common-mode feedback loop. The main disadvantage is that, since the differential function is directly linked to the external resistor mismatching, particular attention should be paid to this mismatching in order to obtain the best performance from the amplifier. 4. Gain in typical application schematic Typical differential applications are shown in Figure on page 6. In the flat region of the frequency-response curve (no input coupling capacitor effect), the differential gain is expressed by the relation: with R in expressed in kω. A Out + Out - Vdiff = = In + In - Due to the tolerance of the internal 5 kω feedback resistor, the differential gain is in the range (no tolerance on R in ): A R Vdiff in R in R in 3/44 Doc ID 968 Rev 8

31 TS496 Application information 4.3 Common-mode feedback loop limitations As explained previously, the common-mode feedback loop allows the output DC bias voltage to be averaged at V CC / for any DC common-mode bias input voltage. However, due to a V icm limitation in the input stage (see Table 3: Operating conditions on page 4), the common-mode feedback loop can play its role only within a defined range. This range depends upon the values of V CC and R in (A Vdiff ). To have a good estimation of the V icm value, we can apply this formula (no tolerance on R in ): with V CC R in + V IC 5kΩ V icm = ( R in + 5kΩ) (V) In + + In - V IC = (V) And the result of the calculation must be in the range:.5v V icm V CC.8V Due to the +/-9% tolerance on the 5 kω resistor, it is also important to check V icm in these conditions. V CC R in + V IC kΩ ( R in kΩ) V VCC R + V in IC 63.5kΩ icm ( R in kΩ) If the result of the V icm calculation is not in the previous range, input coupling capacitors must be used. With V CC between.4 and.5 V, input coupling capacitors are mandatory. For example: With V CC =3V, R in = 5 k and V IC =.5 V, we typically find V icm = V, which is lower than 3 V-.8 V =. V. With 36.5 kω we find.97 V and with 63.5 kω we have. V. Therefore, no input coupling capacitors are required. 4.4 Low frequency response If a low frequency bandwidth limitation is requested, it is possible to use input coupling capacitors. In the low frequency region, C in (input coupling capacitor) starts to have an effect. C in forms, with R in, a first order high-pass filter with a -3 db cut-off frequency. F CL = (Hz) π R in C in So, for a desired cut-off frequency we can calculate C in, C in = (F) π R in F CL with R in in Ω and F CL in Hz. Doc ID 968 Rev 8 3/44

32 Application information TS Decoupling of the circuit A power supply capacitor, referred to as C S, is needed to correctly bypass the TS496. The TS496 has a typical switching frequency at 5 khz and output fall and rise time about 5 ns. Due to these very fast transients, careful decoupling is mandatory. A µf ceramic capacitor is enough, but it must be located very close to the TS496 in order to avoid any extra parasitic inductance being created by an overly long track wire. In relation with di/dt, this parasitic inductance introduces an overvoltage that decreases the global efficiency and, if it is too high, may cause a breakdown of the device. In addition, even if a ceramic capacitor has an adequate high frequency ESR value, its current capability is also important. A 63 size is a good compromise, particularly when a 4 Ω load is used. Another important parameter is the rated voltage of the capacitor. A µf/6.3 V capacitor used at 5 V loses about 5% of its value. In fact, with a 5 V power supply voltage, the decoupling value is about.5 µf instead of µf. As C S has particular influence on the THD+N in the medium-high frequency region, this capacitor variation becomes decisive. In addition, less decoupling means higher overshoots, which can be problematic if they reach the power supply AMR value (6 V). 4.6 Wake-up time (t WU ) When the standby is released to set the device ON, there is a wait of about 5 ms. The TS496 has an internal digital delay that mutes the outputs and releases them after this time in order to avoid any pop noise. 4.7 Shutdown time (t STBY ) When the standby command is set, the time required to put the two output stages into high impedance and to put the internal circuitry in standby mode is about 5 ms. This time is used to decrease the gain and avoid any pop noise during the shutdown phase. 4.8 Consumption in standby mode Between the standby pin and there is an internal 3 kω resistor. This resistor forces the TS496 to be in standby mode when the standby input pin is left floating. However, this resistor also introduces additional power consumption if the standby pin voltage is not V. For example, with a.4 V standby voltage pin, Table 3 on page 4 shows that you must add.4 V/3 kω =.3 µa typical (.4 V/73 kω =.46 µa maximum) to the standby current specified in Table 5 on page 5. 3/44 Doc ID 968 Rev 8

33 TS496 Application information 4.9 Single-ended input configuration It is possible to use the TS496 in a single-ended input configuration. However, input coupling capacitors are needed in this configuration. Figure 6 shows a typical single-ended input application. Figure 6. Single-ended input typical application Vcc Ve Standby Cin Rin Rin Cin 4 3 Stdby 3k 5k 5k Internal Bias PWM - In- In+ + 6 Vcc Out+ Output H Bridge Out- 5 8 Cs u SPEAKER Oscillator 7 All formulas are identical except for the gain with R in in kω. A V single V e = = Out + Out R in Due to the internal resistor tolerance we have: A R V gle in R in sin 37 In the event that multiple single-ended inputs are summed, it is important that the impedance on both TS496 inputs (In - and In + ) be equal. Figure 6. Typical application schematic with multiple single-ended inputs Vek Ve Standby Cink Cin Ceq Rink Rin Req Stdby 3k 5k 5k Internal Bias Oscillator PWM 6 Vcc Output H Bridge 7 Out In- In+ + 3 Out- 8 Vcc Cs u SPEAKER Doc ID 968 Rev 8 33/44

34 Application information TS496 We have the following equations. Out + Out = V e + + V R ek (V) in R ink C eq = k j Σ C ini = C = (F) ini π R F ini CLi R eq = k R ini j = In general, for mixed situations (single-ended and differential inputs) it is best to use the same rule, that is, equalize impedance on both TS496 inputs. 4. Output filter considerations The TS496 is designed to operate without an output filter. However, due to very sharp transients on the TS496 output, EMI-radiated emissions may cause some standard compliance issues. These EMI standard compliance issues can appear if the distance between the TS496 outputs and the loudspeaker terminal is long (typically more than 5 mm, or mm in both directions, to the speaker terminals). As the PCB layout and internal equipment device are different for each configuration, it is difficult to provide a one-size-fits-all solution. However, to decrease the probability of EMI issues, there are several simple rules to follow. Reduce, as much as possible, the distance between the TS496 output pins and the speaker terminals. Use ground planes for "shielding" sensitive wires. Place, as close as possible to the TS496 and in series with each output, a ferrite bead with a rated current of at least.5 A and an impedance greater than 5 Ω at frequencies above 3 MHz. If, after testing, these ferrite beads are not necessary, replace them by a short-circuit. Allow enough footprint to place, if necessary, a capacitor to short perturbations to ground (see Figure 63). Figure 63. Method for shorting perturbations to ground From TS496 output Ferrite chip bead To speaker about pf Gnd 34/44 Doc ID 968 Rev 8

35 TS496 Application information In the case where the distance between the TS496 output and the speaker terminals is high, it is possible to observe low frequency EMI issues due to the fact that the typical operating frequency is 5 khz. In this configuration, we recommend using an output filter (as represented in Figure on page 6). It should be placed as close as possible to the device. 4. Several examples with summed inputs 4.. Example : dual differential inputs Figure 64. Typical application schematic with dual differential inputs Vcc 4 3 Stdby 3k 5k 5k Internal Bias Oscillator PWM Standby R E+ R E+ E- R E- R - In- In+ + 6 Vcc Out+ Output H Bridge Out- 5 8 Cs u SPEAKER 7 With (R i in kω): A Out + Out - V = = - E E R Out + Out - A V = = - E E R.5V V CC R R + 3 ( V IC R + V IC R ) ( R + R ) + R R V.8V CC + E V + E - + E IC = and V + E - IC = Doc ID 968 Rev 8 35/44

36 Application information TS Example : one differential input plus one single-ended input Figure 65. Typical application schematic with one differential input and one single-ended input Vcc 4 3 Stdby 3k 5k 5k Internal Bias Oscillator PWM Standby R E+ C R E+ E- R C R - In- In+ + 6 Vcc Out+ Output H Bridge Out- 5 8 Cs u SPEAKER 7 With (R i in kω) : Out + Out - A V = = E R Out + Out - A V = = - E E R C = (F) π R F CL 36/44 Doc ID 968 Rev 8

37 TS496 Demonstration board 5 Demonstration board A demonstration board for the TS496 is available. For more information about this demonstration board, refer to the application note AN46 "TS496IQ class D audio amplifier evaluation board user guidelines" available on Figure 66. Schematic diagram of mono class D demonstration board for the TS496 DFN package Vcc Cn4 3 C3 uf Vcc Cn6 Gnd Negative input Positive Input Cn Input 3 Cn C nf nf C R 5k R 5k 4 3 Stdby 3k 5k 5k Internal Bias Oscillator PWM - In- In+ + 6 U Vcc Out+ 5 Output H Bridge 8 Out- Cn5 Positive Output Negative Output Speaker TS496DFN 7 Cn3 Figure 67. Top view Doc ID 968 Rev 8 37/44

38 Demonstration board TS496 Figure 68. Bottom layer Figure 69. Top layer 38/44 Doc ID 968 Rev 8

39 TS496 Recommended footprint 6 Recommended footprint Figure 7. Recommended footprint for TS496 DFN package.8mm.8mm.35mm.mm.65mm.4mm Doc ID 968 Rev 8 39/44

40 Package information TS496 7 Package information In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: ECOPACK is an ST trademark. 4/44 Doc ID 968 Rev 8

41 TS496 Package information Figure 7. DFN8 3 x 3 exposed pad package mechanical drawing (pitch.65 mm) Table. DFN8 3 x 3 exposed pad package mechanical data (pitch.65 mm) Dimensions Ref. Millimeters Inches Min. Typ. Max. Min. Typ. Max. A A A3..9 b D D E E e.65.6 L ddd.8.3 Note: The pin identifier must be visible on the top surface of the package by using an indentation mark or other feature of the package body. Exact shape and size of this feature are optional. The dimension L does not conform with JEDEC MO-48, which recommends.4+/-. mm. For enhanced thermal performance, the exposed pad must be soldered to a copper area on the PCB, acting as a heatsink. This copper area can be electrically connected to pin 7 or left floating. Doc ID 968 Rev 8 4/44

42 Ordering information TS496 8 Ordering information Table 3. Part number Order codes Temperature range Package Packaging Marking TS496IQT -4 C, +85 C DFN8 Tape & reel K96 4/44 Doc ID 968 Rev 8

43 TS496 Revision history 9 Revision history Table 4. Document revision history Date Revision Changes 3-May Oct-6 6 -Jan-7 7 Modified package information. Now includes only standard DFN8 package. Added curves in Section 3: Electrical characteristics. Added evaluation board information in Section 5: Demonstration board. Added recommended footprint. Added paragraph about rated voltage of capacitor in Section 4.5: Decoupling of the circuit. 8-Jan- 8 Added Table 5: Pin description. Doc ID 968 Rev 8 43/44

44 TS496 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries ( ST ) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZED ST REPRESENTATIVE, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS "AUTOMOTIVE GRADE" MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan - Malaysia - Malta - Morocco - Philippines - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America 44/44 Doc ID 968 Rev 8