ICs for TV AN723 3-W BTL audio power amplifier Overview The AN723 is an audio power amplifier IC of -ch. output. In the BTL (balanced transformerless) method, fewer external parts and easier design for applications are required. Features 3-W output (8 Ω) with supply voltage of 8 V On-chip standby function On-chip volume function Applications Televisions and audio equipment Package HSIP9-P-E Block Diagram 2 Output 3 GND (for output) 4 Output Standby 6 Input 7 includes following four Product lifecycle stage. GND 8 N.C. 9 Volume Publication date: June 26 SDB8AEB
Pin Descriptions Pin No. Supply voltage 2 Ch. + output Absolute Maximum Ratings Parameter Symbol Rating Unit Supply voltage *2 4 V Supply current I CC. A Power dissipation * 3 P D.22 W Operating ambient temperature * T opr 2 to +7 C Storage temperature * T stg to + C Note) *: Except for the operating ambient temperature and storage temperature, all ratings are for T a = 2 C. *2: At no signal. Description 3 Ground (output ch.) 4 Ch. output Standby (standby state if this pin is open.) 6 Ch. input 7 Ground 8 N.C. 9 Volume (max. volume if this pin is open.) Note) Please do not apply voltage or current to the N.C. pin from outside. *3: The power dissipation shown is the value for T a = 7 C. Recommended Operating Range Parameter Symbol Range Unit Supply voltage 3. to 3. V includes following four Product lifecycle stage. 2 SDB8AEB
Electrical Characteristics at = 8. V,, f = khz, T a = 2 C ± 2 C Parameter Symbol Conditions Min Typ Max Unit Quiescent circuit current I CQ V IN = mv, Vol. = V 2 6 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 =. W, Vol. =.2 V 3 33 3 db Total harmonic distortion THD P O =. W, Vol. =.2 V.. % Maximum output power P O THD = %, Vol. =.2 V 2.4 3. W Ripple rejection ratio * RR R g = kω, Vol. = V, 3 db V R =. V[rms], f R = 2 Hz Output offset voltage V OFF R g = kω, Vol. = V 2 2 mv Volume attenuation rate * Att P O =. W, Vol. = V 7 8 db Intermediate voltage gain G VM P O =. W, Vol. =.6 V 2. 23. 26. db Standby pin current I STB2 V IN = mv, V STB = 3 V 2 µa Volume pin current I VOL V IN = mv, Vol. = V 2 µa Note) *: In measuring, the filter for the range of Hz to 3 khz (2 db/oct) is used. Terminal Equivalent Circuits Pin No. Pin name Equivalent circuit Voltage. V 2 Ch. + output pin V 2. V CC /2 8 Ω 2 kω 2 Ω Ω 2 includes following four Product lifecycle stage. 3 GND V 3 SDB8AEB 3
Terminal Equivalent Circuits (continued) Pin No. Pin name Equivalent circuit Voltage 4 Ch. output pin 2. V /2 8 Ω 2 kω 2 Ω Ω 4 Standby pin V 3 kω To the shock sound prevention circuit V RF kω ( ) 2 Ω 2 kω kω 2 kω /2 33 kω kω kω To the constant current circuit 6 Ch. input pin V mv to mv REF (.4 V) 6 µa kω µa 3 kω µa includes following four Product lifecycle stage. kω kω Ω 7 GND V 7 8 N.C. Open 4 SDB8AEB
Terminal Equivalent Circuits (continued) Pin No. Pin name Equivalent circuit Voltage 9 Volume pin µa Application Circuit Example 47 µf 2 3 8 Ω Out 4 kω 9 2 kω µf 68 kω Standby 6 27 kω. µf kω V IN 7 8 9 Volume includes following four Product lifecycle stage. SDB8AEB
Usage Notes Please avoid the short-circuits to, ground, or load short-circuit. Please connect the cooling fin with the GND potential. The thermal shutdown circuit operates at about T j = 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 source with the signal GND of the amplifier in the previous stage. Technical Data P D T a curve of HSIP9-P-E Power dissipation P D (mw) 2 8 6 4 2 8 6 4 2 P D T a Independent IC without a heat sink Rthj-a = 6. C/W PD = 88 mw (2 C) 2 7 2 Ambient temperature T a ( C) includes following four Product lifecycle stage. 6 SDB8AEB
Technical Data (continued) Main characteristics Output power P O (W) Output power P O (W) Voltage gain G V (db).. 8 7 6 4 3 2 f = khz THD = %, 6 Ω 4 Hz HPF Both ch. input Rg = kω Vol. =.2 V 8 Ω 6 Ω 2 4 6 8 2 4 THD ( khz) P O Supply voltage (V) Both ch. input f = khz R g = kω V STB = V 4 Hz HPF Vol. =.2 V. 3 34 33 32 3 3 29 28 27 26 P O P O, THD V IN THD ( khz) THD ( khz) Input voltage V IN (mv[rms]) G V, P O f P O GV 4 Hz HPF.. Total harmonic distortion THD (%) Output power P O (W) Quiescent circuit current I CQ (ma) Power consumption P C (W) 4 4 9. 3 8. 3 7. I CQ 6. 2. 2 4. Both ch. input 3. I STB R g = kω V STB = V/ V Vol. = V 2... 2 4 6 8 2 4 2..8.6.4.2..8.6.4.2 Supply voltage (V) I CC (8 Ω) I CQ, I STB P C, I CC P O P C (8 Ω) Both ch. input f = khz Rg = kω, 6 Ω 4 Hz HPF Vol. =.2 V Both ch. input Rg = kω Vol. =.2 V. 4. 4. 3. 3. 2. 2.... Total harmonic distortion THD (%)..... 2. 3. 4... Output power (-ch) P O (W) THD f Both ch. input PO =. W Rg = kω 4 Hz HPF Vol. =.2 V includes following four Product lifecycle stage. THD..9.8.7.6..4.3.2. Standby current I STB (µa) Supply current I CC (A) 2.. Frequency f (Hz) Frequency f (Hz) SDB8AEB 7
Technical Data (continued) Main characteristics (continued) G V, THD RR 3. 8 Voltage gain G V (db) Ripple rejection ratio RR (db) Ripple rejection ratio RR (db) 34 33 32 3 3 29 28 27 26 THD 2 2 4 6 8 2 4. 8 7 6 4 3 2 8 7 6 4 3 2 RR V RIPPLE RR Vol. G V Supply voltage (V) RR (vol.-max.) f = khz 4 Hz HPF Both ch. input Rg = kω Vol. =.2 V RR V STB = V Vol. = V/.2 V V RIPPLE =. V[rms] R g = kω f RIPPLE = 2 Hz.9.8.7.6..4.3.2. Power supply ripple voltage V RIPPLE (mv[rms]) RR R g = kω V STB = V V RIPPLE =. V[rms] f RIPPLE = 2 Hz Total harmonic distortion THD (%) Ripple rejection ratio RR (db) Ripple rejection ratio RR (db) 7 6 4 RR (vol.-max.) 3 2 Rg = kω Vol. = V/.2 V VRIPPLE =. V[rms] fripple = 2 Hz 2 4 6 8 2 4 8 7 6 4 3 2 8 7 6 4 3 2 RR f RIPPLE V IN RR Supply voltage (V) RR Vol. = V/.2 V V RIPPLE =. V[rms] R g = kω f RIPPLE = 2 Hz V STB = V RR (vol.-max.) Output noise voltage V NO (µv[rms]) Power supply ripple frequency f RIPPLE (Hz) V NO (vol.-max.) VNO (FLAT) V NO Rg = kω DIN audio filter Vol. = V/.2 V includes following four Product lifecycle stage...2.4.6.8..2.4 Volume voltage Vol. (V) 2 4 6 8 2 4 Supply voltage (V) 8 SDB8AEB
Technical Data (continued) Main characteristics (continued) V NO R g V NO Vol. Output noise voltage V NO (µv[rms]) Quiescent circuit current I CQ (ma) Volume attenuation Att (db) 8 7 6 4 3 2 V NO (FLAT) 8 7 6 4 3 2 9 8 V NO I CQ V STB Att V IN DIN audio filter Vol. = V/.2 V V NO (vol.-max.) Input impedance R g (Ω) I CQ.... 2. 2. 3. Standby voltage V STB (V) Att R g = kω Vol. = V 7 f = khz 6 4 Hz HPF R g = kω V STB = V Vol. = V 4 Input voltage V IN (mv[rms]) Output noise voltage V NO (µv[rms]) Volume attenuation Att (db) 2 8 6 4 2 9 8 7 VNO (FLAT) Volume voltage Vol. (V) Att Att f Rg = kω DIN audio filter V STB = V V NO.2.4.6.8.2.4 P O =. W f = khz 6 4 Hz HPF R g = kω V STB = V Vol. = V 4 2 4 6 8 2 4 Volume attenuation Att (db) 9 9 8 8 7 7 6 6 Att Supply voltage (V) includes following four Product lifecycle stage. Att Frequency f (Hz) PO =. W Rg = kω Vol. = V SDB8AEB 9
Technical Data (continued) Main characteristics (continued) Att Vol. THD Vol. Volume attenuation Att (db) 2 3 4 Att PO 6 f = khz 7 4 Hz HPF 8 Rg = kω 9..2.4.6.8..2.4 Volume voltage Vol. (V) Example of PCB pattern GND 2 3 4 6 7 8 9 Ch. out+ Ch. out Total harmonic distortion THD (%).. PO =. W f = khz THD..2.4.6.8..2.4 Volume voltage Vol. (V) 4 Hz HPF R g = kω GND (input) Mute/Volume V IN (ch.) Standby includes following four Product lifecycle stage. SDB8AEB
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