CD2025B

Silicore 2.3W DUAL AUDION POWER AMP DESCRIPTION The CD2025B is a monolithic integrated circuit consisting of a 2-channel po wer amplifier. It is suitable for stereo and bridge amplifier application of radio cassette tape recorder. CD2025B Outline Drawing FEATURES z High ou tput power Stereo: Po=2.3W (Typ) at Vcc=9V, R L =4 Ω Bridge: Po=4.7W (Typ) at Vcc=9V, R L =8 Ω z z z z z z Low switching distortion at high frequency. Small shock noise at th e time of power on/off due to a built-in mu ting circuit Good ripple rejection due to a built-in ripple filter. Good ch annel separation. Soft tone at the time of output saturation. Closed loop voltage gain fixed 45 d B (Bridge: 51dB) but availability with external resistor added. z z Minimu m nu mb er of external parts required. Easy to design radiator fin. BLOCK DIAGRAM AND PIN CONNECTION PRE GND 7 IN1 8 NF1 POWER GND 9 Fin INPUT AMP 1 + BS1 10 OUT1 11 Vcc 12 SHOCK NOISE REJECTOR OUT AMP 1 RIPPLE FILTER INPUT AMP 2 + 6 R.R 5 IN2 OUT AMP 2 4 Fin 3 NF2 POWER GND BS2 2 OUT2 1 BTL OUT SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 1/3 CHMC Silicore ABSOLUTE MAXIMUM RATINGS (Ta=25 ° C) Characteristic Supply Vo ltage Power Diss ipation Operating Te mperature Storage Temp erature *Fin is soldering on the PCB Symbol Vcc PD Topr Tstg CD2025B Value 15 4* -20~70 -40~150 Unit V W °C °C ELECTRICAL CHARACTERISTICS (unless otherwise specified: Ta=2 5 ° C, Vcc=9V; Rg=6 00 Ω ,f=1kHz) Characteristics Operating Supply Vo ...