11W+11W AMPLIFIER WITH DC CONTROL 11+11W OUTPUT POWER R L = Ω @THD = % V CC = 2V ST-BY AND MUTE FUNCTIONS LOW TURN-ON TURN-OFF POP NOISE LINEAR CONTROL DC COUPLED WITH POWER OP. AMP. NO BOUCHEROT CELL NO ST-BY RC INPUT NETWORK SINGLE SUPPLY RANGING UP TO 35V SHORT CIRCUIT PROTECTION THERMAL OVERLOAD PROTECTION INTERNALLY FIXED GAIN SOFT CLIPPING VARIABLE OUTPUT AFTER CONTROL CIRCUIT MULTIWATT 15 PACKAGE DESCRIPTION The TDA7495 is a stereo 11+11W class AB power amplifier assembled in the Multiwatt 15 package, BLOCK AND APPLICATION DIAGRAM INR INL 47nF S_GND 47nF 11 1 5 SVR 7 3K 3K VAROUT_R 2 + - OP AMP MUTE/STBY PROTECTIONS + - 13 OP AMP MULTIWATT15V ORDERING NUMBER: TDA7495 specially designed for high quality sound, TV applications. Features of the TDA7495 include linear volume control, Stand-by and mute functions. 6K MULTIPOWER BI5II TECHNOLOGY 14 9 12 15 OUTR STBY MUTE OUTL µf µf K 1µF S1 ST-BY S2 MUTE +5V S_GND +5V 47µF 3 4 VAROUT_L +5V nf 3K D96AU44D November 23 1/12
ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit DC Supply Voltage 35 V V IN Maximum Input Voltage Vpp P tot Total Power Dissipation (T amb = 7 C) 2 W T amb Ambient Operating Temperature (1) -2 to 5 C T stg, T j Storage and Junction Temperature -4 to 15 C V 3 Volume CTRL DC voltage 7 V (1) Operation between -2 to 5 C guaranteed by correlation with to 7 C. PIN CONNECTION (Top view) THERMAL DATA Symbol Parameter Value Unit R th j-case Thermal Resistance Junction-case Typ. = 2 Max. = 2. C/W R th j-amb Thermal Resistance Junction-ambient max 35 C/W 15 14 13 12 11 9 7 6 5 4 3 2 1 D96AU441B MUTE STBY S_GND SVR N.C. INL VAROUT_L VAROUT_R OUTR OUTL INR 2/12
ELECTRICAL CHARACTERISTICS (Refer to the test circuit = 2V; R L = Ω, R g = 5Ω, T amb = 25 C). Symbol Parameter Test Condition Min. Typ. Max. Unit Supply Voltage Range 11 35 V I q Total Quiescent Current 7 ma DCV OS Output DC Offset Referred to No Input Signal -65 65 mv SVR Potenial V O Quiescent Output Voltage V P O Output Power THD = %; R L = Ω; = 2V 9.5 11 W THD = 1%; R L = Ω; = 2V 7.5 W THD = %; R L = 4Ω; V CC = 2V 7 W THD = 1%; R L = 4Ω; V CC = 2V 5 6 W THD = %; R L = Ω; V CC = 1V 3.5 3. W THD = 1%; R L = Ω; V CC = 1V 2.6 2.9 W THD Total Harmonic Distortion G V = 3dB; P O = 1W; f = 1KHz;.4 % I peak Output Peak Current (internally limited) 1.7 2.4 A V in Input Signal 2. Vrms G V Closed Loop Gain Vol Ctrl > 4.5V 2.5 3 31.5 db GvLine Monitor Out Gain Vol Ctrl > 4.5V; Zload > 3KΩ -1.5 1.5 db A Min V OL Attenuation at Minimum Volume Vol Ctrl <.5V db BW.6 MHz e N Total Output Noise f = 2Hz to 22KHz 5 µv Play, max volume f = 2Hz to 22KHz 25 µv Play, max attenuation f = 2Hz to 22KHz Mute 6 15 µv SR Slew Rate 5 V/µs R i Input Resistance 22.5 3 KΩ R Var Out Variable Output Resistance 3 Ω R load Var Variable Output Load 2 KΩ Out SVR Supply Voltage Rejection f = 1kHz; max volume 35 39 db C SVR = 47µF; V RIP = 1Vrms f = 1kHz; max attenuation 55 65 db C SVR = 47µF; V RIP = 1Vrms T M Thermal Muting 15 C T s Thermal Shut-down 16 C MUTE STAND-BY & INPUT SELECTION FUNCTIONS T-BY Stand-by threshold 2.3 2.5 2.7 V V MUTE Mute Threshold 2.3 2.5 2.7 V I qst-by Quiescent Current @ Stand-by.6 1 ma A MUTE Mute Attenuation 5 65 db I stbybias Stand-by bias current Stand by on T-BY = 5V V MUTE = 5V µa Play or Mute -2-5 µa I mutebias Mute bias current Mute 1 5 µa Play.2 2 µa 3/12
Figure 1a. Application Circuit. + INR INL C4 47µF C1 µf C2 47nF S_GND C3 47nF 11 1 5 SVR 7 3K 3K C5 nf Figure 1b. P.C.B. and Component Layout. 2 3 4 R1 3K VAROUT_R VAROUT_L + - OP AMP MUTE/STBY PROTECTIONS TP1 + - OP AMP C µf C6 µf 13 VOL P1 5K LOG C9.1µF +5V 15 14 9 12 C7 1µF R2 K OUTR OUTL D96AU493D S1 STBY S2 MUTE +5V S_GND +5V 4/12
APPLICATION SUGGESTIONS The recommended values of the external components are those shown on the application circuit of figure 1a. Different values can be used, the following table can help the designer. COMPONENT SUGGESTION VALUE PURPOSE R1 3K Volume control circuit LARGER THAN SUGGESTION Larger volume regulation time SMALLER THAN SUGGESTION Smaller volume regulation time R2 K Mute time constant Larger mute on/off time Smaller mute on/off time P1 5K Volume control circuit C1 µf Supply voltage Danger of oscillation bypass C2 47nF Input DC decoupling Lower low frequency Higher low frequency cutoff cutoff C3 47nF Input DC decoupling Lower low frequency Higher low frequency cutoff cutoff C4 47µF Ripple rejection Better SVR Worse SVR C5 nf Volume control time Larger volume regulation Smaller volume regulation time costant time C6 µf Output DC Lower low frequency Higher low frequency cutoff decoupling cutoff C7 1µF Mute time costant Larger mute on/off time Smaller mute on/off time C µf Output DC Lower low frequency Higher low frequency cutoff decoupling cutoff C9 nf Supply voltage bypass Danger of oscillation TYPICAL CHARACTERISTICS: Refer to the application circuit of fig.1a T amb = 25 C; = 2V; R L = Ω; F = 1KHz; R S = 5Ω; unless otherwise specified. Figure 2. Output Power vs Supply Voltage P OUT (W) 16 14 12 Figure 3. Distortion vs Output Power 6 R L =Ω d=% d=1% D97AU559 d (%) 1.1 D97AU56 =2V R L =Ω f=15khz f=1khz 4 2 11 15 19 23 27 31 (V).1 2 4 6 P OUT (W) 5/12
Figure 4. Output Power vs Supply Voltage Figure 7. Supply Voltage vs Frequency P OUT (W) 14 12 6 4 2 R L =4Ω d=% d=1% Figure 5. Distortion vs Output Power D97AU561 12 14 16 1 2 22 24 (V) d (%) 1.1 =2V R L =4Ω f=15khz f=1khz D97AU562.1 2 4 6 P OUT (W) Figure 6. gain vs Volume Control (pin #3) Gain (db) 3 2 Figure. Stand-by Attenuation vs Vpin #9 Figure 9. Mute Attenuation vs V pin # - -2-3 -4-5 -6-7 P OUT =1W D97AU563 -. 1. 2. 3. 4. Vpin#3(V) SVR (db) -2-4 -6 - V RIP =1V RMS MAX MAX ATTENUATION D97AU564-2 1K f(hz) ATT (db) -2-4 -6 - - db=1w D97AU565-12 1 2 3 4 Vpin#9(V) ATT (db) -2-4 -6 - db=1w D97AU566-1 2 3 4 Vpin#(V) 6/12
Figure. Power dissipation vs Output Power Figure 11. Power Dissipation vs Output Power P DISS (W) D97AU567 P DISS (W) D97AU56 6 4 2 R L =2 x Ω f=1khz =14V =24V =1V =2V.1 1 P OUT (W).1 1 P OUT (W) 16 12 4 R L =2 x 4Ω f=1khz =26V =2V 7/12
MUTE STAND-BY TRUTH TABLE MUTE ST-BY OPERATING CONDITION H H STANDBY L H STANDBY H L MUTE L L PLAY Turn ON/OFF Sequences (for optimizing the POP performances) A) USING MUTE AND STAND-BY FUNCTIONS (V) 2 ST-BY pin#9 (V) 5 VSVR pin#7(v) 2.5V MUTE pin# (V) 5 INPUT (mv) VOUT (V) IQ (ma) OFF STBY MUTE PLAY MUTE STBY D96AU531A B) USING ONLY THE MUTE FUNCTION To semplify the application, the stand-by pin can be connected directly to Ground. During the ON/OFF transitions we recommend to respect the following conditions: At the turn-on the transition mute to play must be made when the SVR pin is higher than 2.5V At the turn-off the TDA7495 must be brought to mute from the play condition when the SVR pin is higher than 2.5V. OFF /12
Figure 12. PINS: INL, INR Figure 16. PINS: VAROUT-L, VAROUT-R INn 6K 5µA VAROUT-L 3K SVR Figure 13. PIN: VOL Figure 14. PINS: PW-GND, S-GND GND Figure 15. PIN: STBY µa D97AU591 D97AU59 D97AU59 D97AU593 Figure 17. PIN: MUTE Figure 1. PINS: OUT R, OUT L µa MUTE 2 D97AU592 5µA D97AU5 K OUT STBY 2 65K D97AU594 9/12
Figure 19. PIN: SVR + - OUT L 2K SVR 2K µa 6K 6K 1K 1K 3K 3K D97AU55A OUT R /12
DIM. mm inch MIN. TYP. MAX. MIN. TYP. MAX. A5.197 B 2.65.4 C 1.6.63 D 1.39 E.49.55.19.22 F.66.75.26.3 G 1.2 1.27 1.52.4.5.6 G1 17.53 17.7 1.3.69.7.7 H1 19.6.772 H2 2.2.795 L 21.9 22.2 22.5.62.74.6 L1 21.7 22.1 22.5.54.7.6 L2 17.65 1.1.695.713 L3 17.25 17.5 17.75.679.69.699 L4.3.7.9.46.421.429 L7 2.65 2.9.4.114 M 4.25 4.55 4.5.167.179.191 M1 4.73 5. 5.43.16.2.214 S 1.9 2.6.75.2 S1 1.9 2.6.75.2 Dia1 3.65 3.5.144.152 OUTLINE AND MECHANICAL DATA Multiwatt15 (Vertical) 1636 J 11/12
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