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Integral

ILA1238NS Datasheet Preview

ILA1238NS Datasheet

AM/FM MONO RECEIVER

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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
TA = -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




Integral

ILA1238NS Datasheet Preview

ILA1238NS Datasheet

AM/FM MONO RECEIVER

No Preview Available !

ILA1238NS
RIPPLE FILTER - internal stress source with ripple filter,
1/2 COUNTER - VCO frequency devider,
PD1,PD2 - phase detectors of VCO frequency tuning
AUTO BLEND - signal level block for VCO frequency tuning,
MUTING - “MONO” and “STEREO” modes control block.
ABSOLUTE MAXIMUM RATINGS
Symbol
Parameter
Ucc
Supply voltage
Topr
Operation temperature
Tstg
Storage temperature
Tjmax
Junction maximum temperature
Pd
Allowable power dissipation
Value
Unit
10
V
-10 ... +70
°C
-55 ... +150
°C
125
°C
500
mW
RECOMMENDED OPERATION CONDITIONS
Symbol
Parameter
Ucc
Supply voltage
Value
Unit
2.0 ... 9.0
V
PINS DESCRIPTION
Voltage, V
Symbol
Ucc=3V
Ucc=6V
FM АМ FM АМ
1 PLL LPF1 0.86 0.86 0.86 0.86
29 PLL LPF2 0.86 0.86 0.86 0.86
Equivalent electrical circuit
Description
26K
29
MPX REG
26K
Low frequency
filter for VCO
phase selftuning
circuit
1
2 PILOT DET 0.95 0.95 0.95 0.95
LPF1
©
3
3 PILOT DET 0.95 0.95 0.95 0.95
LPF2
2
Pins for
connecting
capacitance of
low frequency
filter of pilot tone
detector
4
ST IND
1.6 1.6 4.5 4.5
VCO CHECK
MPX REG
Pin of indicator of
13K
4
"STEREO" mode
and frequency
control 76 kHz
VCO
2


Part Number ILA1238NS
Description AM/FM MONO RECEIVER
Maker Integral
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ILA1238NS Datasheet PDF






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