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LA1145M Datasheet

  • LA1145M

  • FM IF System (Quadrature Detector) for Car Radio

  • 17頁

  • SANYO

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Ordering number: EN 2725A
Monolithic Linear IC
LA1145, 1145M
FM IF System (Quadrature Detector) for Car Radio
Features
1.
2.
On-chip IF count buffer circuit and microprocessor-
controlled switch circuit for ETR.
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.
Reduced parts鈥?count simplifies design:
1
On-chip IF count buffer circuit;
2
On-chip SD circuit 鈥?sensitivity can be set
independently of soft mute characteristics, and;
3
Variable S-meter gradient 鈥?three pin S-meter output
(pins 5, 16 and 17) facilitates independent control of
SNC and HCC.
Package Dimensions
unit : mm
3115-SIP18Z
[LA1145]
3.
SANYO : SIP18Z
unit : mm
3036B-MFP20
[LA1145M]
SANYO: MFP20
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
93097HS(II)/3132TS/2118TA No.2725-1/17

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