LA1776M_09 Datasheet, PDF (1/41 Pages) Sanyo Semicon Device – Single-Chip Tuner IC for Car Radios

Ordering number : ENN8085
SANYO Semiconductors
DATA SHEET
Monolithic Linear IC
LA1776M ^{Single-Chip Tuner IC for Car Radios}
Overview
The LA1776M integrates all six blocks required in a car radio tuner on a single chip.
Functions
• FM front end
• FM IF
• Noise canceller
• Multiplex
• AM up-conversion
• FM/AM switch
• MRC
Feature
• Reduced noise in the mixer and amplifier blocks for improved performance
• Increased FM front end mixer dynamic range for improved three signal characteristics
• Improved AM practical sensitivity and saturated signal-to-noise ratio
• S-meter sample-to-sample variations can be improved by using the FM S-meter shift function (Fixed resistors can
be used for the SD, keyed AGC, muting on adjustment, muting attenuation, SNC, and HCC.)
• High-speed searching can be implemented using the FM band mute time constant switching function.
• Superb listenability provided by improved medium and weak field noise canceller characteristics.
• Improved separation temperature dependency characteristics
• Excellent FM S-meter voltage linearity
• Noise rejection improved by modifications to the NC circuit
• Sample-to-sample variation correction circuit (zapping) in the FM IF circuit
• Stopping at stations with heavy interference is prevented by increasing the AM wide AGC sensitivity by 10 dB
during seek operations
• Built-in anti-birdie filter
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
40706 MS OT B8-7756 No.8085-1/41