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CXA1191 Dataheets PDF



Part Number CXA1191
Manufacturers Unisonic Technologies
Logo Unisonic Technologies
Description FM/AM Radio
Datasheet CXA1191 DatasheetCXA1191 Datasheet (PDF)

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 FM section RF amplifier, Mixer and OSC (incorporating AFC variable capacitor) IF ampli.

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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 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 Ordering Number 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 © 2015 Unisonic Technologies Co., Ltd 1of 8 QW- R110-014.C CXA1191  MARKING PACKAGE DIP-28 SOP-28 LINEAR INTEGRATED CIRCUIT MARKING UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 8 QW- R110-014.C CXA1191 LINEAR INTEGRATED CIRCUIT  PIN CONFIGURATIONS PIN DESCRIPTION SYMBOL 1 MUTE VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM 0000 EQUIVALENT CIRCUIT 2 Phase-shift circuit, Connect FM DISCRI 2.18 2.7 4.88 5.43 ceramic discriminator. 3 Negative feedback pin NF 1.5 1.5 3.0 3.0 27 Power amplifier output pin AF OUT 1.5 1.5 3.0 3.0 4 Connect variable resistor for VOL CONT 1.25 1.25 1.25 1.25 electronic volume control. 5 AM local oscillation circuit AM OSC 1.25 1.25 1.25 1.25 6 AFC variable capacitor pin 8 Regulator pin 1.25V (Typ.) AFC 1.25 Note 1.25 Note 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 11 13 10 AM RF IN 1.25 1.25 1.25 1.25 Vcc NC 0 0 0 0 GND (FE GND) 0 0 0 0 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 8 QW- R110-014.C CXA1191  PIN CONFIGURATIONS(Cont.) PIN DESCRIPTION SYMBOL LINEAR INTEGRATED CIRCUIT VOLTAGE(V) VCC=3V VCC=6V FM AM FM AM EQUIVALENT CIRCUIT IF output pin of FM and AM, FM/AM 14 Connect IF filter FE OUT 0.36 0.2 0.36 0.2 FM and AM bands selection switch pin. BAND 15 During GND it becomes AM and during open it becomes SELECT 0.84 0 0.88 0 FM. 16 Input pin of AM IF AM IF IN 0 0 0 0 Vcc 10K 15 GND 16 2K 17 Input pin of FM IF FM IF IN 0.34 0 0.88 0 18 19 Meter drive circuit (For tuning indicator) NC 0 0 0 0 1.25V METER 1.6 1.6 4.5 4.5 20 AFC pin of W band. 21 During AM, it determines time constant of AGC. AFC pin of J band. 22 During AM, it determines time constant of AGC. 23 Detection output pin 24 Power amplifier input pin GND 0000 AFC/AGC 1.25 1.49 1.25 1.49 22 AFC/AGC 1.25 1.25 1.25 1.25 DET OUT 1.25 1.0 1.25 1.0 11K 24 AF IN 0 0 0 0 19 N GND 21 GND GND 25 Ripple filter RIPPLE FILTER 2.71 2.71 5.4 5.4 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 4 of 8 QW- R110-014.C CXA1191 LINEAR INTEGRATED CIRCUIT  PIN CONFIGURATIONS(Cont.) VOLTAGE(V) PIN DESCRIPTION SYMBOL VCC=3V VCC=6V EQUIVALENT CIRCUIT FM AM FM AM 6 Power supply pin VCC 3.0 3.0 6.0 6.0 28 Power GND GND 0000 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 5 of 8 QW- R110-014.C CXA1191 LINEAR INTEGRATED CIRCUIT  BLOCK DIAGRAM GND 28 AF OUT 27 Vcc RIPPLE FILTER AF IN 26 25 24 DET OUT 23 AFC AQC 22 AFC AQC 21 IF END METER 20 19 NC 18 FM IF IN 17 AM IF IN 16 FM/AM BAND SELECT 15 AF POWER AMP AM IF DET AGC AM FE TUNING METER FM IF FM DISCRIMINATOR FM FE 1 23 MUTE FM DISCRI NF 4 VOL 5 AM OSC 6 AFC 7 FM OSC 8 RUG OUT 9 10 FM AM RF RF IN 11 NC 12 FW RF IN 13 14 FM FM/AM GND IF OUT UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 6 of 8 QW- R110-014.C CXA1191 LINEAR INTEGRATED CIRCUIT  ABSOLUTE MAXIMUM RATINGS (Ta =25C) PARAMETER SYMBOL RATINGS UNIT Supply Voltage VCC 9 V Power Dissipation DIP-28 SOP-28 PD 1000 700 mW mW Junction Temperature TJ +150 C Operating Temperature TOPR 0 ~ +70 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 Supply Voltage PARAMETER DIP-28 SOP-28 SYMBOL VCC RATINGS 2 ~ 8.5 2 ~ 7.5 UNIT V V  ELECTRICAL CHARACTERISTICS (Ta=25C, Vcc=6V) PARAMETER SW TEST SYMBOL CONDITIONS POINT 123456 CONDITIONS MIN TYP MAX UNIT AM Circuit Current ID1 A B A A A A IA No signal, AM - 3.5 10.0 mA FM Circuit Current ID2 A B A A B A IA No signal, FM - 7.0 14.0 mA FM Front End Voltage Gain GV1 A B A.


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