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| UTC KA22427 DESCRIPTION LINEAR INTEGRATED CIRCUIT I-CHIP AM/FM RADIO IC UTC KA22427 is a one-chip AM/FM radio integrated circuit that is suitable for portable radio applications. It includes AM amplifier, local OSC, AM mixer, AM/FM amplifier, AM AGE, FM AGE circuit and also class b Audio Power Amplifier. FEATURES *Low external components count. *Wide operating voltage : 3 - 13 V. *Internal regulated supply for constant current operation. *DC selection of AM/FM mode. DIP-16 BLOCK DIAGRAM AM IF OUT AM/FM IN HF GND IF bypass AGC bypass AM/FM OUT IF Detector IN +Vcc 4 3 2 1 16 15 14 13 Regulator AM/FM IF AM HF MIXER AM/FM discriminato Audio amplifier AM LO 5 AM local OSC 6 AM HF IN 7 HF bypass 8 9 10 11 12 Audio Audio in Ripple detector Suppression out Audio GND Audio power out ABSOLUTE MAXIMUM RATING(Ta=25C) PARAMETER SUPPLY VOLTAGE SUPPLY CURRENT POWER DISSIPATION THERMAL RESISTANCE OPERATING TEMPERATURE STORAGE TEMPERATURE SYMBOL VCC ICC PD RJ-A TOPX TSTG VALUE 11 44 600 100 -18~65 -40~125 UNIT V mA mW C/W C C NOTE:Ta>25C, DERATE WITH 10mW/C UNLESS SPECIFIED. UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R110-002,A UTC KA22427 PARAMETER Quiescent Circuit Current LINEAR INTEGRATED CIRCUIT TEST CONDITIONS SW1FM,VCC=3V SW1FM,VCC=9V ELECTRICAL CHARACTERISTICS SYMBOL ICCQ MIN 7 10 2.0 TYP 12 17 2.4 57 MAX 17 23 3.1 UNIT mA Pin 16 Terminal Voltage Limiting Voltage Internal Regulated Voltage Pin 16 Voltage Signal to Noise Ratio Maximum Sensitivity Power Output Total Harmonic Distortion Voltage Gain V16(FM) VIN(lim) VCC V16(AM) VO S/N POUT THD GV SW1FM,ICC=42mA SW1FM,VCC=5.5V,-3dB V16=2.4V,VR=Min. SW1AM,ICC=42mA SW1AM,VCC=9V SW1AM,VCC=12V,VIN=37dB SW245,V16=1.4V SW1AM,VCC=5.5V, SW28,VIN=37.5dB SW28,VCC=5.5V,f=1KHZ VR=Min. VR=Min. THD=10% SW245,ICC=42mA,f=1KHZ VOUT=2V SW28,VCC=5.5V,f=1KHZ VR=Min. V dBV 12.5 1.4 1.5 15 0.28 13.2 14.0 1.9 V V V dB 3.0 20 W 0.5 40 4.0 % dB INPUT - OUTPUT IMPEDANCE(Ta=25C,VCC=6V) PARAMETER Pin 2 Input ( AM ) Impedance ( AM ) Pin 2 Input ( FM ) Impedance FM Pin 4 Output Impedance Pin 6 Input Impedance Pin 14 Input ( AM ) Impedance AM Pin14 Input ( FM ) Impedance FM Pin15 Output ( AM ) Impedance AM Pin15 Output ( FM ) Impedance FM (c) (c) (c) (c) (c) SYMBOL Rip2(AM) Cip2(AM) Rip2(FM) Cip2(FM) Rop4 Cop4 Rip6 Cip6 Rip14(AM) Cip14(AM) Rip14(FM) Cip14(FM) Rop15(AM) Cop15(AM) Rop15(FM) Cop15(FM) TEST CONDITIONS f=465KHZ f=465KHZ f=10.7MHZ f=10.7MHZ f=465KHZ f=465KHZ f=1MHZ f=1MHZ f=465KHZ f=465KHZ f=10.7MHZ f=10.7MHZ f=465KHZ f=465KHZ f=10.7MHZ f=10.7MHZ MIN TYP 200 3 30 3.5 300 6 50 5 300 3.5 300 4 300 5.5 300 6 MAX UNIT K pF K pF K pF K pF K pF K pF K pF K pF UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R110-002,A UTC KA22427 TEST CIRCUIT LINEAR INTEGRATED CIRCUIT V16 1 2 3 4 6 V13 Vcc Icc 470 F 0.047 F 220pF OUTPUT 470 F SW2 1.2k 4 3 2 470 F 8 220 F 45 4 3 2 6 1 4.7k 0.001 F GND FM AM SW1 6 1 10pF 16 15 14 13 12 11 10 9 UTC KA22427 Rg=50 22k HF SIGNAL ~ 1 1 2 3 4 5 6 7 8 0.022 F 3.3 F 6 3 2 4 4 3 2 0.01 F 5k 2 3 4 680pF 1 6 6 1 2pF 220pF Rg=600 50| 6 4 3 2 1 51pF 0.047 F 50 AUDIO SIGNAL ~ 0.022 F 0.022 F FM AM SW1 FM IF INOUT AM HF INPUT VOD INPUT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R110-002,A |
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