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ILA1238NS Dataheets PDF



Part Number ILA1238NS
Manufacturers Integral
Logo Integral
Description AM/FM MONO RECEIVER
Datasheet ILA1238NS DatasheetILA1238NS Datasheet (PDF)

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 indicatio.

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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 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 ILA1238NS PINS DESCRIPTION (CONTINUED) Voltage, V № Symbol Ucc=3V Ucc=6V FM АМ FM АМ Equivalent circuit 5 Rch OUT 1.25 1.45 1.35 2.0 5 6 6 Lch OUT 1.25 1.45 1.35 2.0 Description Right channel pin Left channel pin 7 Ucc 3.0 3.0 6.0 6.0 Supply 17K 8 Ripple 2.5 2.5 4.0 4.0 FILTER 8 17K 130K 33K Internal voltage source filter 9 AGC/AFC1 1.47 1.15 1.47 1.15 10 AGC/AFC2 1.15 1.47 1.15 1.47 22K 9 50K 5.3K 25K 50K 10 Pins of heterodyne AFC filter for FM path and AGC for AM path 11 GND 0 0 0 0 25 MUTE 0.05 0.1 0.05 0.1 11 Common output of paths IF FM, 25 IF AM and detectors Connection pin of muting time constant capacitance 3 ILA1238NS PINS DESCRIPTION (CONTINUED) Voltage, V № Symbol Ucc=3V Ucc=6V FM АМ FM АМ Equivalent circuit 12 TUNE IND 1.6 1.6 4.5 4.5 REG 28K 12 Description Signal level indicator in FM and AM modes 13 FM IF IN 1.28 0 1.28 0 15 BAND 1.28 0 1.28 0 SELECT 14 AM IF IN 0 0 0 0 330 15 13 3K 1K 14 2K FM IF input Bands switching output: for AM to be connected to commom output, for FM - in free state input pin of AM IF 16 FM/AM FE OUT 0.4 0.35 0.8 0.35 17 FE GND 0 0 0 0 20 18 FM RF IN 0.4 0 0.4 0 18 20 FM RF 1.28 1.28 1.28 1.28 17 19 AM RF IN 1.28 1.28 1.28 1.28 19 220 3p 1K Output pin of FM IF and AM IF mixers 16 Common output of AM RF and FM RF Input of FM RF amplifier Output of FM RF amplifier FE REG Input of AM RF GND 4 ILA1238NS PINS DESCRIPTION (CONTINUED) Voltage, V № Symbol Ucc=3V Ucc=6V FM АМ FM АМ 21 REG 1.28 1.28 1.28 1.28 23 AFC Equivalent circuit 21 23 1.28B REG Description Output of reference voltage source Output of AFC vericap 22 22 FM OSC 1.28 1.28 1.28 1.28 REG FM heterodyne output 24 24 AM OSC 1.28 1.28 1.28 1.28 REG AM heterodyne output 26 FM DISCRI 2.0 2.70 3.08 3.80 1K 26 Discriminator connection output 27 VCO 28 MPX REG 1.65 1.65 1.65 1.65 30 GND 0 0 0 0 27 28 MPX REG 30 VCO control output for stereo- decoder Reference voltage output for stereo-decoder Common output for stereodecoder 5 ILA1238NS ELECTRICAL CHARACTERISTICS (Ta=25°C, Ucc=6 V) .


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