ILA1238NS Datasheet, PDF (1/8 Pages) List of Unclassifed Manufacturers – FM/AM STEREO RADIORECEIVER

ILA1238NS
AM/FM MONO RECEIVER
ILA1238NS (analog of CXA1238S, SONY) - high-quality one-chip
stereoreceiver designed for receipt of AM/FM signals of broadcasting
stations. The receiver contains: high-frequency amplifiers and AM and FM
mixers, AM and FM intermediate frequency amplifiers, AM and FM
detectors, output decoder of stereosignal for coding system with pilot tone.
• Low consumption current (in FM mode Icc=12.5 mA, in АМ mode Icc=9.5
mA at Ucc=6 V)
• LED indication of tuning
• LED indication of "STEREO" mode
• Switching-off noiseless FM tuning
• Small number of peripheral components
BLOCK DIAGRAM
PACKAGE
30-pin mini-DIP
T_A = -10°...+70° C
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
VCO
MULTIPLEX
REGULATOR
1/2
PD1
COUNTER _PD2
DECODE
AMP
REGULATOR
FM FE
AM FE
MUTING
BU
AMP
AUTO
BLEND
DC
AMP
BU
AMP
FM IF
DISCRI
AM IF
DET
M/ST DC
SW AMP
RIPPLE
FILTER
DC
AMP
DETUNE TUNING IND
MUTING
CONTROL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Note:
VCO - voltage controlled oscillator,
REGULATOR - reference voltage source,
MULTIPLEX REGULATOR - reference voltage source for stereodecoder,
FM FE - heterodyne oscillator, high frequency amplifier and FM path mixer,
AM FE - heterodyne oscillator, high frequency amplifier and AM path mixer,
FM IF DISCRI - intermediate frequency amplifier and FM path demodulator,
AM IF DET - intermediate frequency amplifier and AM path detector ,
TUNING IND - tuning indicator driver,
DETUNE MUTING CONTROL - muting control block,
DC AMP - DC amplifier,
BU AMP - buffer amplifier,
M/ST SW - “MONO”-”STEREO” switch,
DECODE AMP - decoder and LF signal amplifier,
1