ILA1238NS ETC1 | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
Korzhenevsky 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by FM/AM STEREO RADIORECEIVER
DESCRIPTION
ILA1238NS is a high performance one - chip bipolar ICS designed for FM/AM stereo radios. These include an FM/AM front end, FM/AM IF amplifier, FM/AM detection output and FM stereo demodulator output. Bipolar silico n monolithic IC.
FEATURES
- Low current consumption (In FM mode ID = 11.0 mA, in AM mode 8.5 mA, VCC = 6.0V).
- Built - in LED drive circuit for tuning.
- Built - in LED drive circuit for stereo indicator.
- Built - in detune muting circuit for the FM band.
- Few external parts. ELECTRICAL CHARACTERISTICS (TA = 25°C) Symbol Parameter Test Conditions Guaranteed Limits Unit Min Typ Max ID1/D2 AM/FM circuit current No signal AM/FM 8.5/11 12.0/ 15.0 mA GV1 FM front end voltage gain VIN1 = 40dBmV, 100MHz 28 35 42 dB VD1/D3 FM/AM detection output level 35 77.5 138 VRMS VD2 FM IF knee level 25 31 dBmV THD1/HD2 FM/AM detection output distortion factor 0.3/0.6 2.0 % GV2 AM front end voltage gain VIN2 = 60dBmV, 1660kHz 19 24 28 dB GV3 AM IF voltage gain 15 21 29 dB SEP Separation 30 40 dB VI1 M/ST switching level by IF input 38 43 48 dBmV A1 FM Mute Vin5=245mVrms, MONO,1kHz ATT 16 23 30 dB
Korzhenevsky 12, Minsk, 220064, Republic of Belarus Fax: +375 (17) 278 28 22, Phone: +375 (17) 278 07 11, 277 24 70, 277 24 61, 277 69 16 E-mail: belms@belms.belpak.minsk.by URL: www.bms.by BLOCK-SCHEME DISCRI VCO REGULATOR MULTIPLEX COUNTER PD2 PD1 SWM/ST AMPDECODE MUTING BLEND AUTO FILTER RIPPLE BUBU AMP AMP AMPAMP AMP DC DC DC TUNING IND CONTROLMUTING DETUNE AM IF DET FM IF REGULATOR AM FE FM FE 29 28 27 26 25 24 23 22 21 20 19 18 17 16 151413121110987654321 APPLICATION CIRCUIT ILA1238NS Ucc=3B GND LPF PLL REG MPX VCO DISCRI FM MUTE OSC AM AFC OSC FM REG RF FM IN RF AM IN RF FM GND OUT FE FM/AM SELECTBANDINIF AM INIF FM INDTUNEGNDAFC2AGCAFC1AGCFILTERRIPPLEUccOUTLchOUTRchCHECKVCO INDST LPF2LPF1DET DET PILOTPILOT LPFPLL 3p C7 0.001 C5 10.0 18p 150K IFTCF1 R2 2.2K 10.0C9 10K 22KRV CF3 3.3 R9* 100 220K R12 220K R11 4.7 C11 2.2K 0.47 C10 100.0 C15 Lch OUT Rch OUT C14* C13* R6* R7* 0.022 0.022 3.3K 3.3K 33.0 1.01.0 C12 2.2K 2.2K 0.01 C19 CF2 330R10 BAND 0.01 C20 4.7 C18 C17C16 151413121110987654321 29 28 27 26 25 24 23 22 21 20 1930 161718