CXA1191

UNISONIC TECHNOLOGIES CO., LTD CXA1191 FM/AM Radio DESCRIPTION The UTC CXA1191 is a one-chip FM/AM radio IC designed for radio-cassette tape recorders and headphone tape recorders. LINEAR INTEGRATED CIRCUIT FEATURES *Small number of peripheral components *Low current consumption (Vcc=3V) –FM: lD=5.3mA (Typ.) –AM: lD=3.4mA (Typ.) *Built-in FM/AM select switch *Large current of AF amplifier FUNCTIONS FM section RF amplifier, Mixer and OSC (incorporating AFC variable capacitor) IF amplifier Quadrature detection Tuning LED driver AM section RF amplifier, Mixer and OSC (with RF AGC) IF amplifier (with IF AGC) Detector Tuning LED driver AF section Electronic volume control FM muting Structure Bipolar silicon monolithic IC Lead-free: CXA1191L Halogen-free:CXA1191G ORDERING INFORMATION Normal CXA1191-D28-T CXA1191-S28-R CXA1191-S28-T Ordering Number Lead Free Plating CXA1191L-D28-T CXA1191L-S28-R CXA1191L-S28-T Halogen Free CXA1191G-D28-T CXA1191G-S28-R CXA1191G-S28-T Package DIP-28 SOP-28 SOP-28 Packing Tube Tape Reel Tube www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., LTD 1of 7 QW- R110-014.B CXA1191 PIN CONFIGURATIONS PIN 1 DESCRIPTION SYMBOL MUTE LINEAR INTEGRATED CIRCUIT VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM 0 0 0 0 EQUIVALENT CIRCUIT 2 Phase-shift circuit, Connect ceramic discriminator. FM DISCRI 2.18 2.7 4.88 5.43 3 Negative feedback pin NF 1.5 1.5 3.0 3.0 Vcc X100 27 X100 27 Power amplifier output pin AF OUT 1.5 1.5 3.0 3.0 GND 3 4 Connect variable resistor for VOL CONT electronic volume control. 1.25 1.25 1.25 1.25 5 AM local oscillation circuit AM OSC 1.25 1.25 1.25 1.25 6 8 AFC variable capacitor pin Regulator pin 1.25V (Typ.) AFC REG OUT 1.25 1.25 Note 1.25 1.25 1.25 Note 1.25 7 FM local oscillation circuit FM OSC 1.25 1.25 1.25 1.25 9 Connect FM RF tuning coil. FM RF 1.25 1.25 1.25 1.25 12 FM RF input pin FM RF IN 0.3 0 0.3 0 10 11 13 AM RF input AM RF IN NC GND (FE GND) 1.25 0 0 1.25 0 0 1.25 0 0 1.25 0 0 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW- R110-014.B CXA1191 PIN CONFIGURATIONS(Cont.) PIN DESCRIPTION SYMBOL LINEAR INTEGRATED CIRCUIT VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM EQUIVALENT CIRCUIT 14 IF output pin of FM and AM, Connect IF filter FM/AM FE OUT 0.36 0.2 0.36 0.2 Vcc 15 FM and AM bands selection switch pin. During GND it becomes AM and during open it becomes FM. BAND SELECT 0.84 0 0.88 0 15 10K GND 16 16 Input pin of AM IF AM IF IN 0 0 0 0 2K 17 Input pin of FM IF FM IF IN 0.34 0 0.88 0 18 NC 0 0 0 0 19 19 Meter drive circuit (For tuning indicator) 1.25V METER 1.6 1.6 4.5 4.5 N GND 20 21 AFC pin of W band. During AM, it determines time constant of AGC. AFC pin of J band. During AM, it determines time constant of AGC. Detection output pin GND AFC/AGC 0 1.25 0 1.49 0 1.25 0 22 1.49 22 23 AFC/AGC DET OUT 1.25 1.25 1.25 1.0 1.25 1.25 1.25 1.0 24 11K 21 GND 24 Power amplifier input pin AF IN 0 0 0 0 GND 25 Ripple filter RIPPLE FILTER 2.71 2.71 5.4 5.4 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 7 QW- R110-014.B CXA1191 PIN CONFIGURATIONS(Cont.) PIN DESCRIPTION SYMBOL LINEAR INTEGRATED CIRCUIT VOLTAGE(V) EQUIVALENT CIRCUIT VCC=3V VCC=6V FM AM FM AM 6 Power supply pin VCC 3.0 3.0 6.0 6.0 28 Power GND GND 0 0 0 0 Note: The pin voltage of pin 6 during AM, it is the same pin voltage of pin22 (23) during J BAND and is the same pin voltage of pin 21 (22) during W BAND. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW- R110-014.B CXA1191 BLOCK DIAGRAM GND 28 AF OUT 27 Vcc 26 RIPPLE FILTER 25 AF IN 24 DET OUT 23 AFC AQC 22 AFC AQC 21 LINEAR INTEGRATED CIRCUIT IF END 20 METER 19 NC 18 FM IF IN 17 AM IF IN 16 FM/AM BAND SELECT 15 AM IF DET AGC AF POWER AMP TUNING METER AM FE FM IF FM DISCRIMINATOR FM FE 1 MUTE 2 FM DISCRI 3 NF 4 VOL 5 AM OSC 6 AFC 7 FM OSC 8 RUG OUT 9 FM RF 10 AM RF IN 11 NC 12 FW RF IN 13 FM GND 14 FM/AM IF OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW- R110-014.B CXA1191 ABSOLUTE MAXIMUM RATINGS (Ta =25°C) PARAMETER Supply Voltage SYMBOL VCC LINEAR INTEGRATED CIRCUIT RATINGS UNIT 9 V DIP-28 1000 mW Power Dissipation PD SOP-28 700 mW Junction Temperature TJ +150 °C Operating Temperature TOPR -20 ~ +85 °C Storage Temperature TSTG -40 ~ +150 °C Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage DIP-28 SOP-28 SYMBOL VCC RATINGS 2 ~ 8.5 2 ~ 7.5 UNIT V V ELECTRICAL CHARACTERISTICS (Ta=25°C, Vcc=6V) PARAMETER AM Circuit Current FM Circuit Current FM Front End Voltage Gain FM Detection Output Level FM IF Knee Level FM Detection Output Distortion Factor FM Meter Current AM Front End Voltage Gain AM IF Voltage Gain AM Detection Output Level AM Meter Current AM Detection Output Distortion Factor Audio Voltage Gain SW TEST CONDITIONS SYMBOL CONDITIONS POINT 123456 ID1 ABAAAA IA No signal, AM ID2 ABAABA IA No signal, FM GV1 VD1 ABAABA A - - ABA VA VD VIN1=40dBµV,100MHZ VIN3=90dBµV,10.7 MHZ (1 kHz,22.5kHz DEV) VIN3 level at a point 3 dB down from VIN3=90dBµV,10.7 MHZ (1 kHz,22.5kHz DEV) VIN3=90dBµV,10.7 MHZ (1 kHz,75kHz DEV) VIN3=60dBµV,10.7 MHZ VIN3=60dBµV,1660 kHZ VIN3 w hen 455kHz (1kHz, 30% MOD) output is – 34dBm VIN3=85dBµV,455kHZ (1kHz, 30% MOD) VIN3=85dBµV,455kHZ (1kHz, 30% MOD) VIN2=60dBµV,1660kHZ (1kHz, 30% MOD),Vcc=7,8V VIN3=60dBµV,10.7MHZ VIN4=-30dBµV,1kHZ Distortion factor for output of 50mVV VIN3=60dBµV,10.7MHZ VIN4=-20dBµ m,1kHZ Muting level for 50 mW output VIN4=-20dBm,1kHZ VIN3 OFF MIN 32 39 TYP 3.5 7.0 39 77.5 MAX UNIT 10.0 14.0 46 155 mA mA dB Vrms VD2 A - - ABA VD - 24 32 dBμV THD1 IB1 GV2 GV3 VD3 IB2 THD2 GV4 A - - ABA A - - ABA AAAAAA AA - AAA AA - AAA AA - AAA AABBAA A- - - -B VD IM VB VD VD IM VD VE 1.8 15 14 39 1.3 27 0.3 3.5 22 20 77.5 3.0 0.6 31.5 2.0 7.0 29 27 155 7.0 2.0 36 % mA dB dBµV Vrms mA % dB Audio Distortion Factor THD3 A- - - -B VE - 0.3 2.5 % Muting Level VD4 A- - - -B VE 8 15 22 dB 0dBµV=1µV UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW- R110-014.B CXA1191 APPLICATION CIRCUIT LINEAR INTEGRATED CIRCUIT U TC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 7 of 7 QW- R110-014.B