LA1140-E, LA1143, LA1143B Selling Leads, Datasheet
MFG:SANYO Package Cooled:2007+ D/C:09+
LA1140-E, LA1143, LA1143B Datasheet download
Part Number: LA1140-E
MFG: SANYO
Package Cooled: 2007+
D/C: 09+
LA1140-E, LA1143, LA1143B
- Table of contents:
Info of LA1140-E
Info of LA1143
Info of LA1143B
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About LA100P
PDF/DataSheet Download
Datasheet: LA100P
File Size: 70684 KB
Manufacturer: LEM [LEM]
Download : Click here to Download
About LA1143
PDF/DataSheet Download
Datasheet: LA1143
File Size: 127272 KB
Manufacturer: SANYO [Sanyo Semicon Device]
Download : Click here to Download
About LA100P
PDF/DataSheet Download
Datasheet: LA100P
File Size: 70684 KB
Manufacturer: LEM [LEM]
Download : Click here to Download
LA1143 General Description
The LA1143 is an IF system IC designed for FM car stereo receivers. It features versatile muting characteristics and
allows receiver designers to realize the muting performance according to their design concept. Since the muting characteristics can be varied with a switch or a semi-fixed resistor, DX-Local switching will be accomplished with ease.
LA1143 Maximum Ratings
| Parameter | Symbol | Conditions | Ratings | Unit |
| Maximum supply voltage | VCC max | Pin 12 | 16 | V |
| Maximum supply current | ICC max | Pin 12 | 40 | mA |
| Allowable power dissipation |
Pd max | Ta = 25°C | 640 | mW |
| Ta = 70°C | 460 | mW | ||
| Input voltage | VIN | Pin 1 to 2 | ±1 | Vp-p |
| Flow-in current | I2 | Pin 2 | ±0.2 | mA |
| I3 | Pin 3 | ±0.2 | mA | |
| I6 | Pin 6 | 2 | mA | |
| Flow-out current | I5 | Pin 5 | 1 | mA |
| I13 | Pin 13 | 2 | mA | |
| I14 | Pin 14 | 2 | mA | |
| I15 | Pin 15 | 1 | mA | |
| I16 | Pin 16 | 1 | mA | |
| Operating temperature | Topr | 20 to +70 | °C | |
| Storage temperature | Tstg | 40 to +125 | °C |
LA1143 Features
` Versatile mutings
a) When muting operation is performed under a weak signal strength, an attenuation slope of the audio output against the input signal strength variations can be set at any given value.
b) Maximum muting attenuation can be selected to be approximately 6 to 40dB.
c) Input signal strength level which actuates the muting circuit can be set freely.
` High limiting sensitivity (25 dB typ. with muting off) provides a good quieting characteristic.
` High S/N (78dB typ.)
` Low distortion (0.05% typ.) available, if used with double-tuned circuits.
` Good AMR (63dB with 6 stages of differential IF amplifiers).
` Signal meter drive output proportional to the input signal strength in dB (suitable to control multiplex IC LA3373).
` Clamped (±VBE) AFC output, bandwidth adjustable.
` Delayed AGC output for front end circuit.
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