TA7668BP

TA7668BP LINEAR INTEGRATED CIRCUIT DUAL PRE-AMPLIFIER FOR TAPE RECORDER DESCRIPTION The Contek TA7668BP is a dual pre-amplifier with ALC and muting designed for use recorder/playback amplifier of tape recorder. It is suitable for a stereo set and a radio cassette recorder. FEATURES *Build-in ALC detector circuit *Build-in muting circuit *Wide operating voltage range( 6V to 15V) DIP-16 BLOCK DIAGRAM Ch1 Pre-Out and Rec in Ch1 Rec Mute Mute Output Outpu t Input Contek Ch1 Pre IN NF 5 4 3 15 6 PreAMP Ch1 Pre IN 7 8 Rec AMP 16 Vcc ALC ALC DET 2 Vs Ch2 Pre IN 10 Pre AMP Ch2 Pre IN NF 11 9 Pre GND Rec AMP 12 Ch2 Pre-Out and Rec In 13 14 1 Rec GND Ch2 Rec Mute Output Output ABSOLUTE MAXIMUN RATING (Ta=25 C) PARAMETER SYMBOL Supply Voltage Power Dissipation Operating Temperature VCC PD TOPR VALUE 16 750 -25~75 -55~150 UNIT V mW C C Storage Temperature TSTG Note: De-rated above Ta=25 C in proportion of 6mW/ C. Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 1 TA7668BP DC VOLTAGE (VCC=9V,Ta=25 PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 LINEAR INTEGRATED CIRCUIT C, no input signal) SYMBOL V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 V16 VALUE 0 8.2 0 3.3 1.3 1.3 0 0.9 0 0 1.3 1.3 3.3 0 2.4 9 UNIT V V V V V V V V V V V V V V V V ELECTRICAL CHARACTERISTICS(Ta=25 PARAMETER Quiescent Circuit Current PRE AMPLIFIER Open Loop Voltage Gain Maximum Output Voltage Total Harmonic Distortion Output Noise Voltage Cross Talk REC AMPLIFIER Closed Loop Voltage Gain Maximum Output Voltage Total Harmonic Distortion ALC Range Total Harmonic Distortion (ALC) ALC Voltage Muting Attenuation ALC Balance VO(ALC) ATT BALC GV VOM(2) THD(2) RALC THD(ALC) GVO VOM(1) THD(1) VNO C.T. C, Vcc=9V, f=1kHz, unless otherwise specified) SYMBOL ICCQ TEST CONDITIONS VIN=0 VIN=-80dBm THD=1% VO=0.2Vrms Rg=2.2KW , B.P.F., NAB, 30Hz~20kHz Rg=2.2KW RL=10KW THD=1% VO=1.5Vrms VIN=-60dBm,RIN=2.2K W VIN=-20dBm, RIN=2.2KW ,RL=10KW VIN=-20dBm, RIN=2.2KW ,RL=10KW MIN TYP 8.5 MAX 10.5 UNIT mA dB Vrms 65 0.5 78 0.8 0.15 0.26 0.5 0.6 % mVrms dB 47 12.7 2 60 14.7 2.5 0.2 45 0.3 1 1.42 16.7 dB Vrms % dB % Vrms dB 0.9 45 1.1 55 0 VIN=-20dBm 2 dB Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 2 TA7668BP TEST METHOD SYMBOL ICCQ GVO VOM(1) THD(1) VNO CT GV VOM(2) THD(2) RALC THD(ALC) VO(ALC) ATT BALC LINEAR INTEGRATED CIRCUIT S2 * CH1 CH1 CH1 OFF CH1 CH1 CH1 CH1 CH1 CH1 CH1 CH1 S1 * OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF CH2 S3 * GV GV GV GV GV GV GV GV GV GV GV GV S4 * NAB NAB NAB FLAT FLAT FLAT FLAT FLAT FLAT FLAT FLAT S5 * CH1 CH1 CH1 CH2 CH2 S6 * * * * * * * * * * * * * S7 * * * * * * CH1 CH1 CH1 CH1 CH1 CH1 * CH1 CH2 S8 * * * * * * CH2 CH2 CH2 CH2 CH2 CH2 S9 OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF ON S10 * OFF OFF OFF OFF OFF OFF OFF OFF ON ON ON OFF ON Measure Terminal Vcc Pre-Out Pre-Out Pre-Out Pre-Out Pre-Out Pre-Out Rec-Out Rec-Out Rec-Out Rec-Out Rec-Out Rec-Out Mute-Out Rec-Out GVO FLAT FLAT CH1 CH1 CH2 CH2 CH2 CH2 CH2 CH1 * CH1 OFF * OFF CH1 CH2 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 3 TA7668BP TEST CIRCUIT LINEAR INTEGRATED CIRCUIT Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 4