Product Summary

The LA1145 is a FM IF System (Quadrature Detector) for Car Radio.

Parametrics

LA1145 absolute maximum ratings: (1)Maximum supply voltage, VCC max: 14 V; (2)Maximum supply current, ICC max: 45 mA; (3)Allowable power dissipation, Pd max: 630 mW; (4)Operating temperature, Topr: –20 to +70℃; (5)Storage temperature, Tstg: –40 to +150℃.

Features

LA1145 features: (1)On-chip IF count buffer circuit and microprocessor-controlled switch circuit for ETR; (2)Compared to the LA1140, the LA1145, 1145M offer: Improved signal meter output linearity; Improved band mute temperature stability; Improved S/N ratio; Improved sound quality at weak signal input when noise is present, and Improved AMR characteristics during weak signal input; (3)Reduced parts’ count simplifies design: On-chip IF count buffer circuit; On-chip SD circuit — sensitivity can be set independently of soft mute characteristics, and; Variable S-meter gradient — three pin S-meter output (pins 5, 16 and 17) facilitates independent control of SNC and HCC.

Diagrams

LA1145 Equivalent Circuit Block Diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)		 Quantity
LA1145
LA1145
Other

Data Sheet
Negotiable 
LA1145M
LA1145M
Other

Data Sheet
Negotiable 
LA1145M-TLM-E
LA1145M-TLM-E
ON Semiconductor
RF Receiver CAR RADIO FM IF SYSTEM
Data Sheet
0-1430: $1.55
1430-2000: $1.47
2000-5000: $1.42