S1A0426C01 SAMSUNG | Alldatasheet

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Technical content

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. FUNCTIONS

FEATURES

  • Built-in AM/FM Switching Circuit
  • Wide operating supply voltage: V CC = 2V − 8.5V
  • Low current consumption (V CC = 3V) — FM: I CCQ = 7.0mA (Typ) — AM: I CCQ = 3.5mA (Typ)
  • High Power Audio Amplifier: 0.5W (typ) at V CC = 6V, R L = 8, THD = 10%

ORDERING INFORMATION

  • AM/FM RF AMP • Local OSC
  • AM AGC Control • FM AFC Control
  • Audio Power AMP • Tuning Indicator
  • DC Volume • AM/FM IF AMP
  • FM Quadrature DET • AM DET Device Package Operating Temperature S1A0426C01-A0B0 30 −SDIP −400 −20 °C − +70 °C S1A0426C01-S0B0 28 −SOP −375 −20 °C − +70 °C 30 −SDIP −400 28 −SOP −375

S1A0426C01 AM/FM 1 CHIP RADIO BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS (T a = 25 °C) Characteristic Symbol Value Unit Supply Voltage V CC 9 V Power Dissipation P D 1000 mW Operating Temperature T OPR −20 − +70 °C Storage Temperature T STG −40 − +125 °C GND FM Disc VOL NF AM OSC AFC FM OSC REG OUT FM RF AMRF IN N.C FM RF IN RF GND FM/AM IF OUT GND AM OUT VCC AF IN AFC AGC AFC AGC IF GND TUNING METER FM IF IN AM IF IN BAND SELECT Ripple Filter DET OUT N.C 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PWR VOL FM/AM IF DET/AGC AM F/E FM F/E Tuning Meter NOTE: ( ) 28-SOP Package

AM/FM 1 CHIP RADIO S1A0426C01

ELECTRICAL CHARACTERISTICS

(V CC = 6V, Ta = 25 °C , FM; Δf = 22.5kHz, fm = 1kHz, AM; 30% Mod, unless otherwise specified) Characteristic Symbol Test Condition Min. Typ. Max. Unit FM Quiescent Circuit Current ICCQ V I = 0 − 7.0 14.0 mA F/E Voltage Gain G V1V V I(1) = 40dB µ, f c = 100MHz, Δf = 0 32 39 46 dB Detect Output Gain V O (1) V I(3) = 90dB µ, f i = 10.7MHz −26 −20 −14 dBm IF-3 dB Sensitivity V I (LIM) Vo(VI3) = 90dB µ, -3dB, f i = 10.7MHz − 24 32 dB µ Total Harmonic Distortion THD 1 V I(3) = 90dB µ, f i = 10.7MHz( Δf = 75kHz) − 0.3 2.0 % Meter Drive Current IM (1) V I(3) = 60dB µ, f i = 10.7MHz 1.8 3.5 7.0 mA AM Quiescent Circuit Current ICCQ (2) V I = 0 − 3.5 10.0 mA F/E Voltage Gain G V (2) V I(2) = 60dB µ, f c = 1660kHz, m=0% 15 22 29 dB IF Voltage Gain G V (3) Vo(3) = -34dBm, f i = 455kHz 14 20 27 dB µ AM Detect Output Voltage V O (2) V I(3) = 85dB µ, f i = 455kHz −26 −20 −14 dBm Total Harmonic Distortion THD 2 V I(2) = 95dB µ, f c = 1660kHz, Vcc = 7.8V − 0.6 2.0 % Meter Drive Current IM (2) V I(3) = 85dB µ, f i = 455kHz 1.3 3.0 7.0 mA AF Closed Loop Voltage Gain G V (4) Vo(4) = 0dBm, f = 1kHz 27 31.5 36 dB Total Harmonic Distortion THD 3 Po = 50mW, f = 1kHz − 0.3 2.5 % Output Power P O R L = 8 Ω , THD = 10%, f = 1kHz 0.4 0.5 − W

S1A0426C01 AM/FM 1 CHIP RADIO APPLICATION CIRCUIT 0.47 µF 6pF BPF ANT 150 Ω 8.2k Ω 50k Ω 4.7 µF* 10.7MHz 100k Ω 1pF 22pF 18pF 2pF L1L2L3L4 10 µF 0.01µF 220 µF 0.1 µF 470 µF 10 µF 0.022 µ F 10 µF 4.7 µF 10 µF 0.1 µF 1k Ω BAT T 10.7MHz 455MHz 330 Ω 2.2k Ω 100 pF 0.01 µ F AM FM V R S1A0426C01 1 2 3 4 7 24 23 22 21 85 6 26 2528 27 9 10 13 1411 12 19 1618 1720 30 29 C-F C-F * CDA 10.7MG 89-A (MURATA)