Contek TA7784P Datasheet
TA7784P LINEAR INTEGRATED CIRCUIT
DUAL PRE-AMPLIFIER FOR AUTOREVERSE
DESCRIPTION
The Contek TA7784P is a dual pre-amplifier for auto-reverse
type and W-cassette type tape player. This IC contains dual
pre-amplifier, forward/ reverse control switches and metal/
normal tape equalizer control switches.
FEATURES
*High voltage gain: GVO=95dB(typ) at Vcc=6V f=1kHz
*Wide operating supply voltage(V
*No input coupling capacitor
*Low noise( VNI=1mVrms(typ) at Rg=600W ,
BW=20Hz~20kHz, NAB EQ)
BLOCK DIAGRAM
CC= 3.5V~15V)
DIP-16
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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TA7784P LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUN RATINGS(Ta=25 C)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage Vcc 16 V
Power Dissipation PD 750 mW
Operating Temperature Topr -25~75 C
Storage Temperature Tstg -55~150 C
Note: de-rated above Ta=25 C in the proportion of 6mW/ C.
ELECTRICAL CHARACTERISTICS(Ta=25 C,Vcc=6V,Rg=600 W, f=1kHz, unless otherwise specified
PARAMETER SYMBOL TEST
CIRCUIT
Quiescent Current ICCQ1 1 VIN=0, Normal EQ 5.5 mA
ICCQ1 1 VIN=0, Metal EQ 7 11
Open Loop Voltage Gain GVo 1 Cf=100mF,Rf=0 95 dB
Maximum Output Voltage VOM 1 THD=0.5% 1.1 1.5 Vrms
Total Harmonic Distortion THD 1 Vout=0.5Vrms 0.035 0.12 %
Equivalent Input Noise VNI 1 Rg=620W,NAB
Ripple Rejection RR 1 f=100Hz,Vin=1Vrms 55 dB
Cross Talk CT 1 Vout=0dBm 50 60 dB
Forward/ Reverse Cross
Talk
CT(F/R) Vout=0dBm 60 70 dB
TEST
CONDITIONS
BW:20Hz~20kHz
Metal EQ
MIN TYP MAX UNIT
11.7mVrms
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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