SANYO LA1185 Datasheet

Ordering number: EN1521D

Monolithic Linear IC

LA1185

FM Front-end for Radio-cassette Recorder, Home

Stereo Applications

Overview

The LA1185 is an FM receiver front-end IC for radio-cassette
recorder, music center applications. Its mixer is of
double-balanced type. The built-in oscillator and buffer
amplifier improves the strong input characteristic.

Use

.

FM front-end IC for radio-cassette recorders and music
centers

Functions and Features

.

RF amplifier, mixer, local oscillator

.

Improvement in cross modulation characteristics due to the
use of double-balanced mixer.

.

Improvement in strong input characteristic.

.

Minimum number of external parts required.

.

Less spurious radiation from local oscillator.

.

Operating voltage range : 1.5 to 8.0 V

Specifications

Package Dimensions

unit : mm

3017C-SIP9

[LA1185]

SANYO : SIP9

Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Maximum pin voltage V

Allowable power dissipation Pd max Ta % 80°C 150 mW
Operating temperature Topr –20 to +80 °C
Storage temperature Tstg –40 to +125 °C

max 8 V

CC

3-5

V

6-5

12 V

VCC+ 0.8 V

Operating Conditions at Ta = 25°C

Parameter Symbol Conditions Ratings Unit
Recommended supply voltage V
Operating voltage range V

CC

op 1.5 to 8.0 V

CC

4.5 V

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TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

81096HA(II)/0067KI/N214MW/4124KI/9283KI,TS No.1521-1/5

LA1185

Operating Characteristics at Ta = 25°C, VCC= 4.5 V, fr = 108 MHz, f

= 118.7 MHz,

OSC

See specified Test Circuit

Parameter Symbol Conditions min typ max Unit
Current dissipation I
Output saturation voltage Vo 100 dBµ 95 115 135 mVrms
Local oscillation voltage V
Oscillation stop voltage Vstop 1.4 1.6 V

CC

OSC

Allowable power dissipation, Pd max − mW

Quiescent 5.5 8.0 mA

VCC= 2 V 190 235 mVrms

Ambient temperature, Ta − °C

Test Circuit and Equivalent Circuit Block Diagram

(Mitsumi)

(Sumida)

(Mitsumi)

(Sumida)

Unit (resistance: Ω, capacitance: F)

No.1521-2/5