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ICs for Audio Common Use AN7522 Dual 3-W BTL audio power amplifier I Overview AN7522 is an audio power amplifier IC for the stereo system. In the BTL (balanced transformerless) method, fewer external parts and easier design for applications are required. 7.7 ± 0.3 12 29.75 ± 0.30 28.0 ± 0.3 20.0 ± 0.3 (10.0) (10.0) (1.27) Unit: mm (1.3) 3.6 (1.2) 19.1 ± 0.3 21.9 ± 0.3 HSIP012-P-0000A I Block Diagram 10 GND 11 (Ch.2 output) VCC 1 Ch.1 output 2 GND 3 (Ch.1 output) Ch.1 input Ch.2 input Volume Ch.2 output Ch.1 output Ch.2 output Standby GND 12 4 5 6 7 8 9 1.80 ± 0.15 · Televisions, audio equipment, personal computers, and active speakers 1.2 ± 0.1 3.5 ± 0.3 I Applications (12.5) 1 0.10 0.25 + 0.05 2.54 ­ 1.45 ± 0.15 · 3-W output (8 ) with supply voltage of 8 V · On-chip standby function · On-chip volume function R1.8 0.6 0.15 0.6 + 0.05 ­ (1.27) I Features 29.6 ± 0.3 1 AN7522 I Pin Descriptions Pin No. 1 2 3 4 5 6 Descriptions Supply voltage Ch.1 + output Ground (output ch.1) Ch.1 - output Standby (standby state if this pin is open.) Ch.1 input Pin No. 7 8 9 10 11 12 ICs for Audio Common Use Descriptions Ground (input) Ch.2 input Volume (max. volume if this pin is open.) Ch.2 - output Ground (output ch.2) Ch.2 + output I Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *3 *1 *2 Symbol VCC ICC PD Topr Tstg Rating 14 2.0 1.92 -25 to +70 -55 to +150 Unit V A W °C °C Operating ambient temperature Storage temperature *1 Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C. *2: At no signal. *3: The power dissipation shown is the value for Ta = 70°C. I Recommended Operating Range Parameter Supply voltage Symbol VCC Range 3.5 to 13.5 Unit V I Electrical Characteristics at VCC = 8.0 V, RL = 8 , f = 1 kHz, Ta = 25°C ± 2°C Parameter Quiescent circuit current Standby current Output noise voltage * Voltage gain Total harmonic distortion Maximum output power Ripple rejection ratio * Output offset voltage Volume attenuation rate * Channel balance 1 Channel balance 2 Intermediate voltage gain Channel crosstalk Symbol ICQ ISTB VNO GV THD PO1 RR VOFF Att CB1 CB2 GVM CT Conditions VIN = 0 mV, Vol. = 0 V VIN = 0 mV, Vol. = 0 V Rg = 10 k, Vol. = 0 V PO = 0.5 W, Vol. = 1.25 V PO = 0.5 W, Vol. = 1.25 V THD = 10%, Vol. = 1.25 V Rg = 10 k, Vol. = 0 V, VR = 1 V[rms], fR = 120 Hz Rg = 10 k, Vol. = 0 V PO = 0.5 W, Vol. = 0 V PO = 0.5 W, Vol. = 1.25 V PO = 0.5 W, Vol. = 0.6 V PO = 0.5 W, Vol. = 0.6 V PO = 0.5 W, Vol. = 1.25 V Min 31 2.4 30 -250 70 -1 -3 20.5 40 Typ 45 1 0.10 33 0.10 3.0 50 0 85 0 0 23.5 55 Max 100 10 0.4 35 0.5 250 1 3 26.5 Unit mA µA mV[rms] dB % W dB mV dB dB dB dB dB Note) *: In measuring, the filter for the range of 15 Hz to 30 kHz (12 dB/OCT) is used. 2 ICs for Audio Common Use I Terminal Equivalent Circuits Pin No. 1 2 Pin name VCC Ch.1 + output pin Equivalent circuit VCC AN7522 Voltage 5.0 V 2.15 V