Silicore Audio Limiter IC DESCRIPTION D2761 Outline Drawing The D2761 is the audio limiter for speaker protection.The limit level is adjustab le by external resistor.It is suitable for PC,portable audio and others. D FEATURE Wide Operating Voltage +2.7V to +13.0V Variable Limit Level by external resistor 0.2 to 1V Low Output Noise -90dBV max Bipolar Technology SSOP10 PIN CONFIGURATION SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 1/7 Silicore D2761 BLOCK DIAGRAM A B S O L U T E M A X I M U M R AT I N G （ Tamb =2 5℃ ） characteristics Symb o l + Valu e Unit 14 V Supply Voltage V Power Dissipation PD 320 mW Operating Temperature Range Topr -20~+75 ℃ Storage Temp erature Range Tstg -40~+125 ℃ SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 2/7 Silicore D2761 ELECTRICAL CHARACTERISTICS POWER SUPPLY（ Unless otherwise specified， Ta=2 5℃ ,V + =5V） characteristics Test conditions Operating Voltage Symbol Min. Typ. Max. Unit V+ 2.7 5.0 13.0 V 1.5 2.0 mA 2.5 2.7 V Operating Current No Signal Icc Reference Voltage No Signal Vref 2.2 AC CHARACTERISTICS（ Unless otherwise specified， Ta=2 5℃ , V + =5V, VIN=1Vrms/f=1kHz,Rsense=20kΩ ,BW=400~30kHz） characteristics Test conditions Limit level 1 + Symbol Min. Typ. Max. Unit GLIM1 150 200 250 mVrms Limit level 2 V =13V,Rsense=4kΩ GLIM2 0.7 1.0 1.3 Vrms Limit off SW=2V GOFF 0.9 1.0 1.1 Output noise Rs=0Ω , A - w e i g h t i n g VIN=2Vrms VNO -100 (10) -90 (31.6) Vrms dBV (μ Vrms) 1 % CT -70 RR -70 (316) dB dBV (μ Vrms) Total harmonic distortion Cross talk Ripple rejection THD+N Vripple=100mVrms,f=1kHz CONTROL CHARACTERISTICS（ Unless otherwise specified， Ta=2 5℃ , V + =5V） characteristics Test conditions Symbol Low level input voltage VIL High level input voltage VIH Min. 2.0 Typ. Max. Unit 0.5 V V CONTROL TERMINAL EX PLANATION SW(7pin) MODE STATUS NOTE Limiter ON L Limiter is active Limiter OFF H Limiter is not active SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 3/7 Silicore D2761 TERMINAL DESCRIPTION No. SYMBOL + 1 V 2 9 OUTa OUTb 3 8 FUNCTION EQUIVALENT CIRCUIT VOLTAGE Power supply termina Ach output terminal Bch output terminal V + /2 INa INb Ach input terminal Bch input terminal V + /2 4 INT Smoothing capacitor connection terminal 0.7V 5 VREFIN Reference voltage stabilizing capacitor connection terminal V + /2 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 4/7 Silicore D2761 No. SYMBOL FUNCTION Resister Connection Terminal for limit level setting 6 SENSE 7 SW Limiter ON/OFF switch 8 GND Ground Terminal EQUIVALENT CIRCUIT VOLTAGE APPLICATION CIRCUIT SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 5/7 Silicore D2761 TYPICAL CHARACTERISTICS SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 6/7 Silicore D2761 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn CHMC 7/7