AM/FM 1 CHIP RADIO |
S1A0426C02 |
INTROCUCTION
The S1A0426C02 is a monolithic integrated circuit designed for radio cassette tape recorders, clock radios and headphone radios.
FUNCTIONS
• AM/FM RF AMP |
• Local OSC |
• AM AGO Control |
• FM AFO Control |
• Audio Power AMP |
• Tuning Indicator |
• DC Volume |
• AM/FM IF AMP |
• FM Quadrature DET |
• AM DET |
• AUDIO MUTE |
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FEATURES
•Built-in AM/FM Switching Circuit
•Wide operating supply voltage: VCC = 2V − 8.5V
•Low current consumption (VCC = 3V)
—FM: ICCQ = 5.3 mA (Typ)
—AM: ICCQ = 3.4 mA (Typ)
•High Power Audio Amplifier: 0.5W (typ) at VCC = 6V,
•RL = 8Ω, THD = 10%
30−SDIP−400
28−SOP−375
ORDERING INFORMATION
Device |
Package |
Operating Temperature |
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S1A0426C02-A0B0 |
30−SDIP−400 |
−20°C − +70°C |
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S1A0426C02-S0B0 |
28−SOP−375 |
−20°C − +70°C |
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1
S1A0426C02 |
AM/FM 1 CHIP RADIO |
BLOCK DIAGRAM
AM |
Ripple |
DET |
AFC |
AFC |
IF |
TUNING |
FM |
AM BAND |
GND OUT VCC |
Filter |
AF IN OUT |
AGC |
AGC |
GND |
METER N.C |
IF IN |
IF IN SELECT |
30 |
29 |
28 |
27 |
26 |
25 |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
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(28) |
(27) |
(26) |
(25) |
(24) |
(23) |
(22) |
(21) |
(20) |
(19) |
(19) |
(17) |
(16) |
(15) |
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PWR |
VOL |
FM/AM IF DET/AGC |
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Tuning |
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Meter |
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AM F/E |
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FM F/E |
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(1) |
(2) |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
(10) |
(11) |
(12) |
(13) |
(14) |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
MUTE FM |
NF |
VOL AM AFC |
FM |
REG |
FM |
AMRF |
N.C FM RF |
RF |
FM/AM |
Disc |
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OSC |
OSC |
OUT |
RF |
IN |
IN |
GND |
IF OUT |
NOTE: ( ) 28-SOP Package |
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ABSOLUTE MAXIMUM RATINGS (Ta = 25°C)
Characteristic |
Symbol |
Value |
Unit |
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Supply Voltage |
VCC |
9 |
V |
Power Dissipation |
PD |
1000 |
mW |
Operating Temperature |
TOPR |
−20 − +70 |
°C |
Storage Temperature |
TSTG |
−40 − +125 |
°C |
2
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