1145M Datasheet, PDF (1/17 Pages) Sanyo Semicon Device – FM IF System (Quadrature Detector) for Car Radio

Ordering number: ENN 2725B
Monolithic Linear IC
LA1145, 1145M
FM IF System (Quadrature Detector) for Car Radio
Features
1. On-chip IF count buffer circuit and microprocessor-
controlled switch circuit for ETR.
2. Compared to the LA1140, the LA1145, 1145M offer:
1 Improved signal meter output linearity;
2 Improved band mute temperature stability;
3 Improved S/N ratio;
4 Improved sound quality at weak signal input when
noise is present, and;
5 Improved AMR characteristics during weak signal
input.
3. Reduced parts’ count simplifies design:
1 On-chip IF count buffer circuit;
2 On-chip SD circuit — sensitivity can be set
independently of soft mute characteristics, and;
3 Variable S-meter gradient — three pin S-meter output
(pins 5, 16 and 17) facilitates independent control of
SNC and HCC.
Package Dimensions
unit : mm
3115-SIP18Z
[LA1145]
24.2
3.25
1
1.305
2.54
2.54
1.27
unit : mm
3036C-MFP20
20
18
0.5
0.25
2.54
SANYO : SIP18Z
[LA1145M]
11
1
10
12.5
0.15
0.35
1.27
(0.4)
SANYO: MFP20
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
20802TN(II)/93097HA(II)/3132TS/2118TA No.2725-1/17