UTC7312 – Dual Recording / Playback Pre-Amplifier Circuit

UTC7312 Datasheet PDF learn more.

Part number : UTC7312

Functions : This is a kind of semiconductor. Dual Recording / Playback Pre-Amplifier Circuit.

Pin arrangement :

Package information :

Manufacturer : Hangzhou Silan Microelectronics

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UTC7312 Datasheet PDF

The texts in the PDF file :

UTC7312 S w w aDUAL RECORDING/PLAYBACK D CIRCUIT WITH . PRE-AMPLIFIER w ALC DESCRIPTION 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 *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 e e h 1 U 4 t m o .c UTC7312 Characteristic Supply Voltage Supply Current Power Dissipation Operating Temperature Storage Temperature LI NEAR I NTEGRATED CI RCUI T Symbol Vcc Icc PD Topr Tstr ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) Value 14 50 700 -55 to 125 -65 to 150 Unit V mA mW °C °C ELECTRICAL CHARACTERISTICS Characteristic Quiescent current Operating voltage Closed-llop Voltage Gain Total Harmonic Distortion Output Voltage Output noise Voltage ALC Voltage ALC Width Channel Balance ( Ta=25°C ,Vcc=6V,f=1kHz,,RL=5.1kΩ,unless otherwise specified) Symbol ICCQ Vcc Gvc THD Vo Vno VALC W ALC CB Test Condition Vi=0 Vo=0.5V Vo=0.5V THD=1% Rg=0(internal resistance 1.5kΩ) DIN/Audio) Vin=400µV Beginning 0dB to 3dB Vo=0.5V,CB=Gv1-Gv2 Min 2.5 5.0 66 1.2 Typ. 4.5 69 0.5 1.6 2.0 0.63 47 0 Max 8.0 12.0 72 1.0 5.0 0.7 +1 Unit mA V dB % V mV V dB dB 0.55 35 -1 TYPICAL APPLICATION CIRCUIT REC RL=5kΩ Playback 1.8kΩ Output of CH2 220µF 100µF 1000pF 82nF input2 Vcc=6V 0.022µF 10µF 10µF 39kΩ 14 13 12 11 10 9 8 UTC7312 1 2 3 Playback 4 0. [ … ]

UTC7312 PDF File

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