Contek TA7358P Datasheet
TA7358P LINEAR INTEGRATED CIRCUIT
FM FRONT-END
DESCRIPTION
The Contek TA7358P is designed for a FM front-end
application, which is suitable to a portable radio or a radio
cassette. Comparing with conventional types, supply voltage
dependence, overload characteristics and spurious radiation
characteristics are improved.
FEATURES
*Excellent supply voltage dependence of local oscillator:
oscillator stop Vcc=0.9V(typ)
*Improved inter-modulation characteristics by double
balanced type mixer circuit
*Low spurious radiation
*Wide operating voltage range( 1.6V to 6V)
BLOCK DIAGRAM
To IF AM P.
SIP-9
Vcc
64
Buffer AMP.
Bias
52
Local
Oscillator
REG
Contek
8
7
Input
B.P.F
3 9
RF AMP. Mixer
1
ABSOLUTE MAXIMUN RATINGS(Ta=25 C)
PARAMETER SYMBOL VALUE UNIT
Supply Voltage VCC 8V
Power Dissipation PD 500 MW
Operating Temperature Topr -25 ~ 75 C
Storage Temperature Tstg -55 ~ 150 C
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
1
TA7358P LINEAR INTEGRATED CIRCUIT
ELECTRONIC CHARACTERISTICS(Ta=25 C, Vcc=5V, f=83MHz, fm=1kHz, Df=22.5kHz, unless
otherwise specified)
PARAMETER SYMBOL TEST CIRCUIT TEST CONDITIONS MIN TYP MAX UNIT
Quiescent Current IQ VIN=0 5.2 8 mA
-3dB Limiting Sensitivity VIN(lim) 2 -3dB 3 7 dBm
Quiescent Sensitivity Qs(dBm)2 11 dBm
Conversion Gain Gc 31 dB
Local OSC Voltage Vosc 1 fosc=60MHz 90 165 220 mVrms
Pin 1 Parallel
Input
Resistance
Impedance Parallel
Output
Resistance
Pin 3 Parallel
Input
Resistance
Impedance Parallel
Output
Resistance
Pin 4 Parallel
Input
Resistance
Impedance Parallel
Output
Resistance
Pin 6 Parallel
Input
Resistance
Impedance Parallel
Output
Resistance
Local OSC Stop
Voltage
Rip1
3
Cip1 pF
Rip3
3 f=83MHz
Cip3 2 pF
Rip4
3
Cip4 3.3 pF
Rip6
3 f=10.7MHz
Cip6 4.8 pF
VSTOP 1 0.9 1.3 V
57 W
25 W
2.7 W
100 W
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
2
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