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零件编号 | LM3089 | ||
描述 | LM3089 FM Receiver IF System | ||
制造商 | National Semiconductor | ||
LOGO | |||
1 Page
September 1992
LM3089 FM Receiver IF System
General Description
The LM3089 has been designed to provide all the major
functions required for modern FM IF designs of automotive
high-fidelity and communications receivers
Features
Y Three stage IF amplifier limiter provides 12 mV (typ)
b3 dB limiting sensitivity
Y Balanced product detector and audio amplifier provide
400 mV (typ) of recovered audio with distortion as low
as 0 1% with proper external coil designs
Y Four internal carrier level detectors provide delayed
AGC signal to tuner IF level meter drive current and in-
terchannel mute control
Y AFC amplifier provides AFC current for tuner and or
center tuning meters
Y Improved operating and temperature performance es-
pecially when using high Q quadrature coils in narrow
band FM communications receivers
Y No mute circuit latchup problems
Y A direct replacement for CA3089E
Connection Diagram
Dual-In-Line Package
Top View
Order Number LM3089N
See NS Package Number N16E
TL H 7149 – 2
C1995 National Semiconductor Corporation TL H 7149
RRD-B30M115 Printed in U S A
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页数 | 6 页 | ||
下载 | [ LM3089.PDF 数据手册 ] |
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