UTC7312

LINEAR INTEGRATED CIRCUIT UTC7312 DUAL RECORDING/PLAYBACK PRE-AMPLIFIER CIRCUIT WITH 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. 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 DIP-14 12 11 Ripple Filter 10 Input of Ch2 NFof CH2 Phase compensat ion of ch2 13 Output 2 14 ALC input Ch 2 Vcc Rippli filter BLOCK DIAGRAM 9 8 Ch2 Amp ALC 1 2 3 4 5 6 7 GND ALC Time constant ALC input Ch 1 Output 1 Phase compensat ion of ch1 NFof CH1 Input of Ch1 Ch1 Amp YOUWANG ELECTRONICS CO.LTD 1 2017.09.18 V1.2 LINEAR INTEGRATED CIRCUIT UTC7312 ABSOLUTE MAXIMUM RATINGS(Ta=25C ) Characteristic Symbol Supply Voltage Supply Current Power Dissipation Operating Temperature Storage Temperature Vcc Icc PD Topr Tstr Value Unit 14 50 700 -55 to 125 -65 to 150 V mA mW C C ELECTRICAL CHARACTERISTICS ( Ta=25C ,Vcc=6V,f=1kHz,,RL=5.1k,unless otherwise specified) Symbol Test Condition Quiescent current Operating voltage Closed-llop Voltage Gain Total Harmonic Distortion Output Voltage Output noise Voltage Characteristic ICCQ Vcc Gvc THD Vo Vno Vi=0 ALC Voltage ALC Width Channel Balance VALC W ALC CB Min Typ. Max Unit 2.5 5.0 66 Vo=0.5V Vo=0.5V THD=1% Rg=0(internal resistance 1.5k) DIN/Audio) Vin=400V Beginning 0dB to 3dB Vo=0.5V, CB=Gv1-Gv2 1.2 0.55 35 -1 4.5 69 0.5 1.6 2.0 0.63 47 0 8.0 12.0 72 1.0 5.0 0.7 +1 mA V dB % V mV V dB dB TYPICAL APPLICATION CIRCUIT REC 1.8kΩ RL=5kΩ Playback 82nF 220μF 0.022μF 10μF 10μF Vcc=6V 14 13 12 11 1000pF 100μF Output of CH2 input2 39kΩ 10 9 8 6 7 UTC7312 0.022μF 82nF REC Output of CH1 Input1 1.8kΩ 4MΩ 22μF Playback 5 39kΩ 100μF 4 1000pF 3 10μF 2 RL=5kΩ 1 Playback REC YOUWANG ELECTRONICS CO.LTD 2 2017.09.18 V1.2 UTC7312 LINEAR INTEGRATED CIRCUIT YOUWANG ELECTRONICS CO.LTD 3 2017.09.18 V1.2 LINEAR INTEGRATED CIRCUIT UTC7312 TYPICAL PERFORMANCE CHARACTERISTICS Vomax,Gv vs. Supply Voltage ICCQ THD vs. Supply Voltage 68 3 6 9 12 2 4 1 2 THD 0 3 Supply Voltage (V) 6 9 12 60 Vcc=6V Vo=0.5V RL=5.1kΩ FLAT 50 Gv, THD vs. Frequency 0 10 100 1 0.1 0.1 THD Output Voltage (V) Vo Total Harmonic Distortion (%) 1 40 10 1 10k 100k (Hz) Vo, THD vs. Input Voltage Vcc=6V f=1kHz RL=5.1kΩ FLAT the dot line is measured at Vcc=12V 100 10 Output Voltage (V) 2 Total Harmonic Distortion (%) GV 50 1k Frequency Vo, THD vs. Input Voltage 60 1 30 15 100 Vcc=6V Vo=0.5V RL=5.1kΩ NAB 2 THD Supply Voltage (V) 80 70 GV 40 0 0 15 70 Total Harmonic Distortion (%) ICCQ 6 10 10 1 1 THD Vo 0.1 0.1 Total Harmonic Distortion (%) 69 1 8 Voltage Gain (dB) 70 2 Total Harmonic Distortion (%) Gv Voltage Gain (dB) 71 3 0 80 Vomax f=1kHz Vcc=0.5V RL=5.1kΩ THD=1% 4 0 Voltage Gain (dB) Gv, THD vs. Frequency 10 Quiescent current (mA) Maximum Output Voltage (V) 5 THD 0 30 10 100 1k Frequency 10k 0.01 100k 0.01 0.01 0.1 (Hz) 1 10 0.01 Input Voltage (mV) Gvo vs. Frequency 0.1 1 10 Input Voltage (mV) VALC THDvs. Input Voltgae 80 ALC Voltage (dBV) 100 Vcc=6V f=1kHz 5 Pin 6.9 0 -5 1.5 -10 60 1.0 0.5 40 -15 10 100 1k Frequency 10k (Hz) 100k Total Harmonics Distortion (%) Vcc=6V Vo=1V 120 100μF Open Circuit Volatge Gain (dB) 10 0 -80 -60 -40 -20 0 Input Voltage (mV) YOUWANG ELECTRONICS CO.LTD 4 2017.09.18 V1.2 LINEAR INTEGRATED CIRCUIT UTC7312 PACKAGE OUTLINE DIP-14-300-2.54 Unit: mm 1.52 +0.3 -0 0.25±0.05 7.62 6.35±0.25 2.54 15 degree 4.36MAX 19.55±0.3 3.00MIN 0.5MIN 0.46±0.08 2.40MAX YOUWANG ELECTRONICS CO.LTD 5 2017.09.18 V1.2 UTC7312 LINEAR INTEGRATED CIRCUIT ELECTROSTATIC DISCHARGE CAUTION These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage handing to prevent electrostatic damage to the devices. NOTICE HANGZHOU YOUWANG ELECTRONICS CO.LTD assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all HANGZHOU YOUWANG ELECTRONICS CO.LTD’s products described or contained herein. HANGZHOU YOUWANG ELECTRONICS CO.LTD’s products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. YOUWANG ELECTRONICS CO.LTD 6 2017.09.18 V1.2 LINEAR INTEGRATED CIRCUIT UTC7312 Attach Revision History Data REV Description 1.0 Original 2007.11.28 1.1 Add picture is on page third 2017.09.18 1.2 Page 3 Add “Electrostatic Discharge Caution” and “NOTICE”, and” PACKAGE OUTLINE” YOUWANG ELECTRONICS CO.LTD 7 2017.09.18 V1.2