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TDA1220BK Datasheet

  • TDA1220BK

  • AM-FM QUALITY RADIO

  • 18頁(yè)

  • STMICROELECTRONICS   STMICROELECTRONICS

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TDA1220B
AM-FM QUALITY RADIO
The TDA1220B is a monolithic integrated circuit in
a 16-lead dual in-line package.
It is intended for quality receivers produced in large
quantities.
The functions incorporated are:
AM SECTION
鈥?Preamplifier and double balanced mixer
鈥?One pin local oscillator
鈥?IF amplifier with internal AGC
鈥?Detector and audio preamplifier
FM SECTION
鈥?IF amplifier and limiter
鈥?Quadrature detector
鈥?Audio preamplifier
The TDA1220B is suitable up to 30MHz AM and for
FM bands (including 450KHz narrow band) and
features:
鈥?Very constant characteristics (3V to 16V)
鈥?High sensitivity and low noise
鈥?Very low tweet
ORDERING NUMBER
: TDA 1220BK
DIP-16 Plastic
(0.25)
鈥?Sensitivity regulation facility (*)
鈥?High recovered audio signal suited for stereo
decoders and radio recorders
鈥?Very simple DC switching of AM-FM
鈥?Low current drain
鈥?AFC facility
(*) Maximum AM sensitivity can be reduced by means of a resistor
(5 to 12K鈩? between pin 4 and ground.
BLOCK DIAGRAM
March 1993
1/18

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