UTC7312 - Hangzhou Silan Microelectronics

UTC7312 Dual Recording / Playback Pre-Amplifier Circuit

The UTC7312 is a monolithic integrated circuit designed for dual pre-amplifier circuit with ALC for record /playback amplifier of cassette tape recorder. ta e e h U 4 t m o .c LI NEAR I NTEGRATED CI RCUI T FEATURES *High open loop gain *Incorporates ALC detector circuit *No input coupling condenser *Low noise and current consumption *Wide ALC range *Wid.

Features

*High open loop gain
*Incorporates ALC detector circuit
*No input coupling condenser
*Low noise and current consumption
*Wide ALC range
*Wide operating voltage range: Vcc=5V ~ 12V Low Power ON shock noise BLOCK DIAGRAM Rippli filter ALC input Ch 2 Vcc 14 Ripple Filter Phase compensat ion of ch1 ALC Time constant NFof CH1 ALC input Ch 1 Output 1 Input of Ch1 w w w t a .D 13 ALC 2 12 S a 11 4 e h Phase compensat ion of ch2 U 4 t e NFof CH2 .c m o DIP-14 Output 2 10 9 Ch2 Amp Ch1 Amp 1 GND 3 5 6 Input of Ch2 8 7 YOUW ANG ELECTRONI CS CO. LTD w w w .D a S a t.