ICs for Audio Common Use AN752 Dual -W BTL audio power amplifier Overview The AN752 is an audio power amplifier IC for stereo system. The BTL (Balanced Transformer-Less) method can provide fewer external parts and more easy design for applications. Features -W output (8 Ω) with supply voltage of 5 V On-chip standby function On-chip volume function Applications Televisions, audio equipment, personal computers, and active speakers Package HDIP6-P-3A Block Diagram output output GND (ch. output) 2 3 5 4 28 db 28 db Attenuator Ripple rejection circuit Thermal shutdown Attenuator control N.C. Attenuator 28 db 28 db 2 8 Standby output output GND (ch.2 output) input 3 4 5 6 N.C. N.C. N.C. GND Volume input 7 9 includes following four Product lifecycle stage. 6 Publication date: June 26 SDC32CEB
Pin Descriptions Pin No. Description Pin No. Description N.C. 9 N.C. 2 Standby (standby state if this pin is open.) 3 input 4 Ground (input) 5 Volume (muting off if this pin is open.) 6 input 7 N.C. 8 output Note) Please do not apply voltage or current to the N.C. pin from outside. Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage *2 4 V Supply current I CC 2. A Power dissipation * 3 P D 27 mw Operating ambient temperature * T opr 25 to +7 C Storage temperature * Recommended Operating Range T stg 55 to +5 C Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for T a = 25 C. *2: At no signal. *3: The power dissipation shown is the value for T a = 7 C. Ground (output ch.2) + output 2 Supply voltage 3 + output 4 Ground (output ch.) 5 output 6 N.C. Parameter Symbol Range Unit Supply voltage 3.5 to 3.5 V includes following four Product lifecycle stage. 2 SDC32CEB
Electrical Characteristics at = 5. V, R L = 8 Ω, f = khz, T a = 25 C ± 2 C Parameter Symbol Conditions Min Typ Max Unit Quiescent circuit current I CQ V IN = mv, Vol. = V 35 ma Standby current I STB V IN = mv, Vol. = V µa Output noise voltage * V NO R g = kω, Vol. = V..4 mv[rms] Voltage gain G V P O =.25 W, Vol. =.25 V 3 33 35 db Total harmonics distortion THD P O =.25 W, Vol. =.25 V..5 % Maximum output power P O THD = %, Vol. =.25 V.7. W Ripple rejection ratio * RR R g = kω, Vol. = V, 3 5 db V R =.5 V[rms], f R = 2 Hz Output offset voltage V OFF R g = kω, Vol. = V 25 25 mv Volume attenuation rate * Att P O =.25 W, Vol. = V 7 85 db Channel balance CB P O =.25 W, Vol. =.25 V db Channel balance 2 CB2 P O =.25 W, Vol. =.6 V 3 3 db Intermediate voltage gain G VM P O =.25 W, Vol. =.6 V 2.5 23.5 26.5 db Channel crosstalk CT P O =.25 W, Vol. =.25 V 4 55 db Note) *: In measuring, the filter for the range of 5 Hz to 3 khz (2 db/oct) is used. Terminal Equivalent Circuits Pin No. Pin name Equivalent circuit Voltage N.C. Open 2 Standby pin 5 V 3 kω To the shock sound prevention circuit V RF 2 kω ( ) 2 Ω 2 kω 5 kω 2 kω /2 33 kω kω includes following four Product lifecycle stage. 5 kω To the constant current circuit SDC32CEB 3
Terminal Equivalent Circuits (continued) Pin No. Pin name Equivalent circuit Voltage 3 input pin.4 V V REF (.4 V) 3 5 µa kω kω kω 5 Ω 4 GND V 4 5 Volume pin 5 5 µa kω 2 kω 6 input pin.4 V V REF (.4 V) 5 µa 5 µa 3 kω 5 µa 3 kω µa µa kω 6 kω kω 5 Ω includes following four Product lifecycle stage. 7 N.C. Open 4 SDC32CEB
Terminal Equivalent Circuits (continued) Pin No. Pin name Equivalent circuit Voltage 8 output pin 2.5 V /2 9 N.C. Open GND V + output pin V 2.5 V CC /2 8 Ω 8 Ω 2 kω 2 kω 2 Ω 5 Ω 8 2 Ω 5 Ω 2 5. V 3 + output pin 2.5 V includes following four Product lifecycle stage. 2 Ω 5 Ω 3 /2 8 Ω 2 kω SDC32CEB 5
Terminal Equivalent Circuits (continued) Pin No. Pin name Equivalent circuit Voltage 4 GND V 4 5 output pin 2.5 V /2 8 Ω 2 kω 2 Ω 5 Ω 5 6 N.C. Open Usage Notes Please avoid the short circuit to, ground, or load short circuit. Please connect the cooling fin with the GND potential. The thermal shutdown circuit operates at about T j = 5 C. However, the thermal shutdown circuit is reset automatically if the temperature drops. Please carefully design the heat radiation especially when you take out high power at high. Please connect only the ground of signal with the signal GND of the amplifier in the previous stage. Technical Data P D T a curve of HDIP6-P-3 Power dissipation P D (mw) 2 8 6 4 2 8 6 P D T a Independent IC without a heat sink Rthj-a = 7 C/W PD = 76 mw (25 C) includes following four Product lifecycle stage. 4 2 25 5 75 25 5 Ambient temperature T a ( C) 6 SDC32CEB
Technical Data (continued) Main characteristics Output power P O (W) Output power P O (W) Voltage gain G V (db) 8 7 6 5 4 3 2. f = khz THD = % R L = 8 Ω 4 Hz HPF 3 khz LPF Both ch. inputs Rg = kω Vol. =.25 V (8 Ω) P O 2 4 6 8 2 4. Supply voltage (V) P O, THD V IN = 5 V Both ch. inputs f = khz R g = kω R L = 8 Ω V STB = 5 V 4 Hz HPF Vol. =.25 V 3 khz LPF. 35 34 33 32 3 3 29 28 27 26 THD (ch.2, khz) THD (ch., khz) PO (ch., ch.2) G V, P O f (8 Ω) THD (ch., khz) THD (ch.2, khz) THD (ch.2, khz) THD (ch., khz) Input voltage V IN (mv[rms]).. Total harmonic distortion THD (%) Quiescent circuit current I CQ (ma) Power consumption P C (W) 9 8 7 6 5 4 3 2 I CQ I CQ, I STB ISTB 2 4 6 8 2 4 3.5 3. 2.5 2..5..5 Spply voltage (V) P C, I CC P O G V (ch.2) GV (ch.) P O (ch.) P O (ch.2) VCC = 5 V Both ch. inputs R g = kω 4 Hz HPF 3 khz LPF Vol. =.25 V 2..8.6.4.2..8.6.4.2 Output power P O (W) Total harmonic distortion THD (%) THD f Both ch. inputs Rg = kω VSTB = V/5 V VMUTE = V ICC (8 Ω) PC (8 Ω).3 = 5V f = khz Both ch. inputs Rg = kω.2 4 Hz HPF Vol. =.25 V. 3 khz LPF...5..5.. Output power P O (W) VCC = 5 V Both ch. inputs PO =.25 W Rg = kω 4 Hz HPF Vol. =.25 V 3 khz LPF includes following four Product lifecycle stage. 9 8 7 6 5 4 3 2.9.8.7.6.5.4 Standby current I STB (µa) Supply current I CC (A) 25. Frequency f (Hz). Frequency f (Hz) SDC32CEB 7
Technical Data (continued) Main characteristics (continued) G V, THD Att Vol. Voltage gain G V (db) Ripple rejection ratio RR (db) Ripple rejection ratio RR (db) 4 39 38 37 36 35 34 33 32 3 THD (ch.) PO =.25 W f = khz R L = 8 Ω 4 Hz HPF 3 khz LPF Both ch. inputs Rg = kω Vol. =.25 V G V (ch.2) THD (ch.2) 3 2 4 6 8 2 4. 8 7 6 5 4 3 2 Supply voltage (V) RR V RIPPLE RR (vol.-max.) (vol.-max.) GV (ch.) = 5 V R L = 8 Ω Vol. = V/.25 V 3 khz LPF V RIPPLE =.5 V[rms] R g = kω f RIPPLE = 2 Hz 8 7 6 5 4 3 2 Power supply ripple voltage V RIPPLE (mv[rms]) (vol.-max.) (vol.-max.) R L = 8 Ω 3 khz LPF Rg = kω Vol. = V/.25 V VRIPPLE =.5 V[rms] fripple = 2 Hz..9.8.7.6.5.4.3.2. Total harmonic distortion THD (%) Volume attenuation Att (db) Ripple rejection ratio RR (db) Ripple rejection ratio RR (db) 2 3 4 5 6 7 8, 9..2.4.6.8..2.4 8 7 6 5 4 3 2 (vol.-max.) (vol.-max.) Volume voltage Vol. (V) RR f RIPPLE RR Vol. = 5 V PO =.25 W f = khz 4 Hz HPF 3 khz LPF Rg = kω Vol. = V = 5 V Vol. =.25 V V RIPPLE =.5 V[rms] Rg = kω fripple = 2 Hz VSTB = 5V 8 7 6 5 4 3 2 Power supply ripple frequency f RIPPLE (Hz) = 5 V 3 khz LPF Rg = kω VRIPPLE =.5 V[rms] fripple = 2 Hz includes following four Product lifecycle stage. 2 4 6 8 2 4 Supply voltage (V)..2.4.6.8..2 Volume voltage Vol. (V) 8 SDC32CEB
Technical Data (continued) Main characteristics (continued) V NO V NO R g Output noise voltage V NO (µv[rms]) Output noise voltage V NO (µv[rms]) Volume attenuation Att (db) 8 7 6 5 4 3 2 (vol.-max.) (vol.-max.), 2 4 6 8 2 4 9 8 7 6 5 4 3 2 9 8 7 6 5. Supply voltage (V) V NO Vol. (FLAT) Att Rg = kω DIN audio filter V STB = 5 V Vol. = V/.25 V (FLAT) (FLAT), Volume voltage Vol. (V) (FLAT) VCC = 5 V Rg = kω DIN audio filter.2.4.6.8..2.4, PO =.25 W f = khz 4 Hz HPF 3 khz LPF Rg = kω Vol. = V 4 2 4 6 8 2 4 Supply voltage (V) Output noise voltage V NO (µv[rms]) Static circuit current I CQ (A) 8 7 6 5 4 3 2 (FLAT), (FLAT), 8 7 6 5 4 3 2 9 8 7 6 5 I CQ V STB Att V IN = 5 V DIN audio filter Vol. = V/.25 V Input impedance R g (Ω) Volume attenuation Att (db) (vol.-max.) (vol.-max.)..5..5 2. 2.5 3. ICQ Standby voltage V STB (V) VCC = 5 V f = khz R L = 8 Ω 4 Hz HPF 3 khz LPF Rg = kω V STB = 5 V Vol. = V VCC = 5 V Rg = kω Vol. =.25 V includes following four Product lifecycle stage. 4 Input voltage V IN (mv[rms]) SDC32CEB 9
Technical Data (continued) Main characteristics (continued) Att f THD Vol. Volume attenuation Att (db) Closs talk CT (db) Closs talk CT (db) 95 9 85 8 75 7 65 6 55, 5 9 8 7 6 5 4 3 2 9 8 7 6 5 4 3 2 Frequency f (Hz) CT CT f VCC = 5 V PO =.25 W Rg = kω Vol. = V 2 4 6 8 2 4 Supply voltage (V) P O =.25 W f = khz 4 Hz HPF 3 khz LPF Rg = kω Vol. =.25 V = 5 V PO =.25 W Rg = kω Vol. =.25 V Total hrmonic distortion THD (%) Closs talk CT (db).. 9 8 7 6 5 VCC = 5 V PO =.25 W f = khz Volume voltage Vol. (V) CT V IN 4 Hz HPF 3 khz LPF Rg = kω Vol. =.25 V..2.4.6.8..2.4 4 VCC = 5 V 3 f = khz 4 Hz HPF 2 3 khz LPF Rg = kω Vol. =.25 V Input voltage V IN (mv[rms]) includes following four Product lifecycle stage. Frequency f (Hz) SDC32CEB
Technical Data (continued) Example of PCB pattern out out+ out+ out GND Application Circuit Example 6 5 6 5 4 3 2 9 2 3 4 5 6 7 8 Out 8 Ω 4 2 3 4 5 6 7 8 µf 68 kω 27 kω kω 3 2 Out2 8 Ω GND (input) V IN (ch.2) Volume V IN (ch.) Standby 9 TAB TAB includes following four Product lifecycle stage.. µf. µf. µf kω Standby V IN Volume V IN2 SDC32CEB
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