UNISONIC TECHNOLOGIES CO., LTD CXA1191 LINEAR INTEGRATED CIRCUIT 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. 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 Lead-free: CXA1191L Halogen-free:CXA1191G 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 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 www.unisonic.com.tw Copyright © 2009 Unisonic Technologies Co., LTD Package Packing DIP-28 SOP-28 SOP-28 Tube Tape Reel Tube 1of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS PIN DESCRIPTION 1 SYMBOL MUTE 2 Phase-shift circuit, Connect ceramic discriminator. 3 Negative feedback pin VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM 0 0 0 0 FM DISCRI 2.18 2.7 4.88 5.43 NF 1.5 1.5 3.0 3.0 EQUIVALENT CIRCUIT 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 AFC variable capacitor pin AFC 1.25 Note 1.25 Note 8 Regulator pin 1.25V (Typ.) REG OUT 1.25 1.25 1.25 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 AM RF input AM RF IN 1.25 1.25 1.25 1.25 NC GND (FE GND) 0 0 0 0 0 0 0 0 11 13 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS(Cont.) PIN DESCRIPTION SYMBOL VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM 14 IF output pin of FM and AM, Connect IF filter FM/AM FE OUT 0.36 0.2 0.36 EQUIVALENT CIRCUIT 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 10K 15 GND 16 16 Input pin of AM IF AM IF IN 0 0 0 0 17 Input pin of FM IF FM IF IN 0.34 0 0.88 0 NC 0 0 0 0 18 2K 19 19 Meter drive circuit (For tuning indicator) 1.25V METER 1.6 1.6 4.5 4.5 N GND 20 21 22 23 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 0 0 0 0 AFC/AGC 1.25 1.49 1.25 1.49 AFC/AGC 1.25 1.25 1.25 1.25 DET OUT 1.25 1.0 1.25 1.0 22 21 GND 24 24 Power amplifier input pin AF IN 0 0 0 11K 0 GND 25 Ripple filter RIPPLE FILTER 2.71 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2.71 5.4 5.4 3 of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT PIN CONFIGURATIONS(Cont.) 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. PIN DESCRIPTION SYMBOL UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM FM/AM BAND SELECT GND AF OUT Vcc RIPPLE FILTER AF IN DET OUT AFC AQC AFC AQC IF END METER NC FM IF IN AM IF IN 28 27 26 25 24 23 22 21 20 19 18 17 16 15 AM IF DET AGC AF POWER AMP TUNING METER AM FE FM IF FM DISCRIMINATOR FM FE 1 MUTE 2 FM DISCRI 3 4 5 6 7 8 9 10 11 12 13 14 NF VOL AM OSC AFC FM OSC RUG OUT FM RF AM RF IN NC FW RF IN FM GND FM/AM IF OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 5 of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta =25°C) PARAMETER SYMBOL VCC 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. Supply Voltage RECOMMENDED OPERATING CONDITIONS PARAMETER Supply Voltage SYMBOL DIP-28 SOP-28 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 SW TEST CONDITIONS SYMBOL CONDITIONS POINT 1 2 3 4 5 6 ID1 A B A A A A IA No signal, AM ID2 A B A A B A IA No signal, FM GV1 A B A A B A VA VD1 A - - A B A VD VD2 A - - A B A VD THD1 A - - A B A VD IB1 A - - A B A GV2 AM IF Voltage Gain VIN1=40dBµV,100MHZ MIN TYP MAX UNIT - 3.5 7.0 10.0 14.0 mA mA 32 39 46 dB 39 77.5 155 Vrms - 24 32 dBμV - 0.3 2.0 % IM 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 1.8 3.5 7.0 mA A A A A A A VB VIN3=60dBµV,1660 kHZ 15 22 29 dB GV3 A A - A A A VD 14 20 27 dBµV AM Detection Output Level VD3 A A - A A A VD 39 77.5 155 Vrms AM Meter Current IB2 A A - A A A IM 1.3 3.0 7.0 mA THD2 A A B B A A VD - 0.6 2.0 % GV4 A - - - - B VE 27 31.5 36 dB THD3 A - - - - B VE - 0.3 2.5 % VD4 A - - - - B VE 8 15 22 dB FM IF Knee Level FM Detection Output Distortion Factor FM Meter Current AM Front End Voltage Gain AM Detection Output Distortion Factor Audio Voltage Gain Audio Distortion Factor Muting Level 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 0dBµV=1µV UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 7 QW- R110-014.B CXA1191 LINEAR INTEGRATED CIRCUIT APPLICATION CIRCUIT UTC 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