SA1140 SL, SA1140 Datasheet

no-image

SA1140

Manufacturer Part Number
SA1140
Description
FM Radio IC
Manufacturer
SL
Datasheet
www.DataSheet4U.com
BLOCK DIAGRAM
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
FM RADIO IC FOR DIGITAL TUNING SYSTEM
DESCRIPTION
features versatile muting characteristics which can be varied with
external parts.
FEATURES
APPLICATIONS
The SA1140 is an IF system IC designed for FM car stereo receivers. It
* Muting characteristics
* High limiting sensitivity
* High S/N (78 dB typ.)
* Good AMR
* Signal meter drive output proportional to the input signal strength in
* FM car stereo receivers, FM home radio
a) Muting operation is performed under weak signal strength.
b)
c) Input signal strength level which actuates the muting circuit can
dB (suitable to control multiplex IC SA3370).
be set freely.
approximately 6 to 40 dB.
Maximum muting attenuation
can be selected to
be
ORDERING INFORMATION
SA1140
Device
REV:1.0
ZIP-16
Package
ZIP-16
SA1140
Page 1 of 6
2004.10.27

Related parts for SA1140

SA1140 Summary of contents

Page 1

... FM RADIO IC FOR DIGITAL TUNING SYSTEM DESCRIPTION The SA1140 system IC designed for FM car stereo receivers. It features versatile muting characteristics which can be varied with external parts. FEATURES www.DataSheet4U.com * Muting characteristics a) Muting operation is performed under weak signal strength. b) Maximum muting attenuation approximately dB. ...

Page 2

... 2 100 (ACC) ute dBµ, 400 Hz 100% mod 5 100 (ACC) ute dBµ, 400 Hz 100% mod. B (Mute 100 dBµ 2 SA1140 Unit Vp-p 0 °C °C Min ...

Page 3

... Out of IF preamp GND1 Gnd1 Resister connected between p5 and GND determines the maximum ATTadj muting attenuation The higher the current flowing into p6,the lower the gain (the higher the attenuation ) AFC AFC clamp OUT Out of AF SA1140 Min. Typ. Max. 400 Hz 3.5 4.2 5 ...

Page 4

... All these outputs are led circuit and the processed output is developed at pin 14. 3 The general method to adjust the muting circuit of the SA1140 is: to set the signal input level required to actuate the muting circuit with the R16-G, to adjust the slope of the curve for the muting attenuation vs. antenna signal input with the R15-G, and to adjust the maximum muting attenuation (determined by setting the noise level at no signal) with the R5-G ...

Page 5

... TEST CIRCUITS www.DataSheet4U.com TYPICAL APPLICATION CIRCUIT HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SA1140 REV:1.0 2004.10.27 Page ...

Page 6

... PACKAGE OUTLINE ZIP-16 www.DataSheet4U.com HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http: www.silan.com.cn SA1140 UNIT: mm REV:1.0 2004.10.27 Page ...

Related keywords