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LA1135M Datasheet

  • LA1135M

  • AM Tuner System for Car Radios and Home Stereos

  • 18頁

  • SANYO

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Ordering number: EN1272E
Monolithic Linear IC
LA1135, 1135M
AM Tuner System for
Car Radios and Home Stereos
Overview
The LA1135 is a high-performance AM electronic tuner IC that
is greatly improved in cross modulation characteristics. It is
especially suited for use in car radio and home stereo (antenna:
loop) applications.
Package Dimensions
unit : mm
3021B-DIP20S
[LA1135]
Functions
.
MIX
.
OSC (with ALC)
.
IF amplifier
.
Detector
.
AGC (normal)
.
RF wide-band AGC
.
Auto search stop signal (signal meter output)
.
Local oscillation buffer output
.
Others
unit : mm
SANYO : DIP20S
3036B-MFP20
Features
.
Excellent cross modulation characteristics: Meets the
.
.
.
.
.
.
.
.
.
requirements for preventing not only adjacent-channel
interference but also interference caused by all channels
within broadcast band.
Narrow-band signal meter output: Usable as auto search stop
signal. Has linearity up to 80 dB碌.
Local oscillation buffer output: Facilitates designing of
electronic tuner system, frequency display, etc.
OSC (with ALC): Improves tracking error because
oscillation output is stabilized at a low level (380 mVrms)
for varactor diode.
MIX: Double-balanced differential MIX meeting the
requirements for preventing spurious interference, IF
interference.
Good characteristics at high input: 130 dB碌 input
f
m
= 400 Hz 80% mod THD = 0.4% typ
Low noise: Good S/N at medium input (56 dB typ)
Usable sensitivity: (S/N = 20 dB input): 25 dB碌 (2SK315
I
DSS
= 11mA)
V
CC
variation compensation: Less variation in gain,
distortion: 8 to 12 V
Reduced pop noise: Capable of reducing pop noise at the
time of V
CC
ON, mode select by adjusting AGC time
constant.
[LA1135M]
SANYO: MFP20
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
93097HA(II)/D0994JN/O217KI/4034KI.TS(KOTO) No.1272-1/18

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