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LA1136N

Sanyo
Part Number LA1136N
Manufacturer Sanyo
Description AM Tuners for Car Radios and Home Stereos
Published Sep 17, 2019
Detailed Description Ordering number: EN 3507 Monolithic Linear IC LA1136N, 1136NM, 1137N, 1137NM AM Tuners for Car Radios and Home Stereos ...
Datasheet PDF File LA1136N PDF File

LA1136N
LA1136N

Overview
Ordering number: EN 3507 Monolithic Linear IC LA1136N, 1136NM, 1137N, 1137NM AM Tuners for Car Radios and Home Stereos Overview The LA1136N/NM and LA1137N/NM are high-performance AM electronic tuner ICs offering sophisticated functions.
They are especially suited for use in car radio and home stereo (antenna: loop) applications.
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 .
IF band switching circuit (for LA1136N only) .
IF count buffer .
Stop detector output (can be set independently) .
Tweet prevention circuit .
AGC (RF, IF) time constant switching circuit .
IF AGC circuit .
Pin-diode driver .
AM stereo decoder IF output (for LA1136N only) .
Circuit preventing incorrect seek operation Features .
Excellent cross modulation characteristic: 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 100 dBµ.
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 (350 mVrms: .
LA1137N) for varactor diode.
MIX: Double-balanced differential MIX meeting the requirements for preventing spurious interference, IF .
interference.
Good characteristic at high input: 130 dBµ input fm = 400 Hz 80%mod THD = 0.
5% typ.
.
High S/N: Good S/N at medium input (55 dB typ).
.
Usable sensitivity: (S/N = 20 dB input): 25 dBµ .
(when using 2SK715 ) VCC variation compensation: Less variation in gain, distortion: 8 to 12 V AM stereo capability (LA1136N only) .
IF band switching circuit on chip; controlled by .
microcontroller Oscillating circuit for AM stereo; SUB S/N improved to 6 dB .
IF output for AM stereo decoder .
Improved tweet charac...


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