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| AM/FM 1 CHIP RADIO S1A0426C01 INTRODUCTION The S1A0426C01 is a monolithic integrated circuit designed for radio-cassette tape recorders, clock radios and headphone radios. 30-SDIP-400 FUNCTIONS * * * * * AM/FM RF AMP AM AGC Control Audio Power AMP DC Volume FM Quadrature DET * * * * * Local OSC FM AFC Control Tuning Indicator AM/FM IF AMP AM DET 28-SOP-375 FEATURES * * * Built-in AM/FM Switching Circuit Wide operating supply voltage: VCC = 2V - 8.5V Low current consumption (VCC = 3V) -- FM: ICCQ = 7.0mA (Typ) -- AM: ICCQ = 3.5mA (Typ) * High Power Audio Amplifier: 0.5W (typ) at VCC = 6V, RL = 8, THD = 10% ORDERING INFORMATION Device S1A0426C01-A0B0 S1A0426C01-S0B0 Package 30-SDIP-400 28-SOP-375 Operating Temperature -20C - +70C -20C - +70C 1 S1A0426C01 AM/FM 1 CHIP RADIO BLOCK DIAGRAM GND 30 29 (28) AM OUT 28 VCC 27 Ripple Filter 26 (25) VOL AF IN 25 (24) DET OUT 24 (23) AFC AGC 23 (22) AFC AGC 22 IF TUNING GND METER N.C 21 20 (20) (19) 19 FM IF IN 18 (19) AM BAND IF IN SELECT 17 16 (16) (15) (27) (26) (21) (17) FM/AM IF DET/AGC PWR AM F/E FM F/E Tuning Meter (1) 1 2 GND 3 FM Disc (2) 4 VOL (3) 5 NF (4) 6 (5) 7 AFC AM OSC (6) 8 FM OSC (7) 9 REG OUT (8) 10 FM RF (9) 11 (10) 12 N.C (11) 13 (12) 14 (13) 15 (14) AMRF IN FM RF RF IN GND FM/AM IF OUT NOTE: ( ) 28-SOP Package ABSOLUTE MAXIMUM RATINGS (Ta = 25C) Characteristic Supply Voltage Power Dissipation Operating Temperature Storage Temperature Symbol VCC PD TOPR TSTG Value 9 1000 -20 - +70 -40 - +125 Unit V mW C C 2 AM/FM 1 CHIP RADIO S1A0426C01 ELECTRICAL CHARACTERISTICS (VCC = 6V, Ta = 25C, FM; f = 22.5kHz, fm = 1kHz, AM; 30% Mod, unless otherwise specified) Characteristic Quiescent Circuit Current F/E Voltage Gain FM Detect Output Gain IF-3 dB Sensitivity Total Harmonic Distortion Meter Drive Current Quiescent Circuit Current F/E Voltage Gain AM IF Voltage Gain AM Detect Output Voltage Total Harmonic Distortion Meter Drive Current Closed Loop Voltage Gain AF Total Harmonic Distortion Output Power Symbol ICCQ GV1V VO(1) VI (LIM) THD1 IM (1) ICCQ(2) GV(2) GV(3) VO(2) THD2 IM(2) GV(4) THD3 PO VI = 0 VI(1) = 40dB, fc = 100MHz, f = 0 VI(3) = 90dB, fi = 10.7MHz Vo(VI3) = 90dB, -3dB, fi = 10.7MHz VI(3) = 90dB, fi = 10.7MHz(f = 75kHz) VI(3) = 60dB, fi = 10.7MHz VI = 0 VI(2) = 60dB, fc = 1660kHz, m=0% Vo(3) = -34dBm, fi = 455kHz VI(3) = 85dB, fi = 455kHz VI(2) = 95dB, fc= 1660kHz, Vcc = 7.8V VI(3) = 85dB, fi = 455kHz Vo(4) = 0dBm, f = 1kHz Po = 50mW, f = 1kHz RL = 8, THD = 10%, f = 1kHz Test Condition Min. Typ. Max. Unit - 32 -26 - - 1.8 - 15 14 -26 - 1.3 27 - 0.4 7.0 39 -20 24 0.3 3.5 3.5 22 20 -20 0.6 3.0 31.5 0.3 0.5 14.0 46 -14 32 2.0 7.0 10.0 29 27 -14 2.0 7.0 36 2.5 - mA dB dBm dB % mA mA dB dB dBm % mA dB % W 3 S1A0426C01 APPLICATION CIRCUIT 150 ANT 8.2k 0.01F 4 0.1F 330 D1 1k T1 0.1F 0.47F C-F 455MHz 2.2k AM 100pF FM 470F 10F 0.022 F 10F 4.7F 10F C-F 10.7MHz 0.01 F S2 BAT T 220F 30 21 (21) (20) (19) (18) (17) (16) (28) (27) (26) (25) (24) (23) (22) 29 28 27 26 25 24 23 22 20 19 18 17 16 (15) S1A0426C01 2 8 (1) S1 1 3 (2) 4 (3) 5 (4) 6 (5) 7 (6) (7) 9 (8) 10 (9) 11 (10) 12 (11) 13 (12) 14 (13) 15 (14) 100k 4.7F *10.7MHz 1pF 10F BPF 6pF L4 L3 22pF 18pF L2 2pF L1 50k VR AM/FM 1 CHIP RADIO * CDA 10.7MG 89-A (MURATA) |
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