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Silan Semiconductors
AM/FM RADIO IC
DESCRIPTION
SA2132 is AM/FM radio IC (FM F/E+AM/FM IF) which is designed for AM/FM radios. FM local oscillation voltage is set up low relativity, for NEW FCC.
SA2132
FEATURES
• For NEW FCC • AM detector coil, FM IFT, IF coupling condenser are not needed. • For adopting ceramic discriminator, it is not necessary to adjust the FM quad detector circuit. • Built in varactor diode for AFC • Low supply current: (VCC=3V, TA=25°C) ICCq (FM)=7.3mA (typ.) ICCq (AM)=3.6mA (typ.) • Operating supply voltage range: VCC=1.8~7V (TA=25°C)
DIP-16
ORDERING INFORMATION
Device
SA2132
Package
DIP-16-300-2.54
PIN CONFIGURATION
FM RF IN RF GND MIX OUT AGC VCC FM IF IN AM IF IN GND 1 2 3 4 16 15 14 13 AM RF IN FM RF OUT AM/FM SW FM OSC AM OSC AFC DET OUT QUAD
SA2132
5 6 7 8 12 11 10 9
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
1
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Silan Semiconductors
BLOCK DIAGRAM
SA2132
AM RF IN
FM RF OUT
AM/FM SW
FM OSC
AM OSC
AFC
16
15
14
13
12
11
10
DET OUT
QUAD
9
AM RF
FM/AM
FM OSC
AM OSC
AF BUFF
FM DET AM DET
FMRF
FM MIX
AM MIX
AGC
FMIF
AMIF
1
FM RF IN BPF
2
RF GND
3
MIX OUT
4
AGC
5
VCC
6
FM IF IN
7
AM IF IN
8
GND
ABSOLUTE MAXIMUM RATINGS (Ta=25°C)
Characteristic
Supply Voltage Power Dissipation Operating Temperature Storage Temperature
Symbol
VCC PD (Note 1) Topr Tstg
Value
8 750 -25~75 -55~150
Unit
V mW °C °C
Note 1: Detected above Ta = 25°C in the proportion of 6mW/°C for SA2132.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
2
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Silan Semiconductors
SA2132
Test Condition Min.
-----38 180 ---20 55 ---
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, Ta=25°C, VCC=3 V,
F/E : f=98 MHz, fm=1 kHz FM IF : f=10.7 MHz, ∆f =±75 kHz, fm= 1 kHz AM : f=1 MHz, MOD=30%, fm=1 kHz)
Characteristic
Supply Current Input Limiting Voltage F/E Quiescent Sensitivity Local OSC Voltage Input Limiting Voltage Recovered Output Voltage FM IF Signal to Noise Ratio Total Harmonic Distortion AM Rejection Ratio Voltage Gain AM Recovered Output Voltage Signal to Noise Ratio Total Harmonic Distortion
Symbol
Typ.
7.3 3.6 10 15 130 43 240 72 0.5 60 38 80 41 1.0
Max.
11.0 7.0 ---48 300 ---75 110 ---
Unit
mA dBµV EMF dBµV EMF mVrms dBµV EMF mVrms dB % dB mVrms mVrms dB %
ICC (FM) FM mode, Vin=0 ICC (AM) AM mode, Vin=0 Vin(lim) QS -3dB limiting point S/N=40dB
VOSCnote fOSC =108 MHz Vin(lim) IF -3dB limiting point VOD S/N THD AMR GV VOD S/N THD Vin = 80dBµV EMF Vin = 80dBµV EMF Vin = 80dBµV EMF Vin = 80dBµV EMF Vin = 28dBµV EMF Vin = 60dBµV EMF Vin = 60dBµV EMF Vin = 60dBµV EMF
Note: This characteristics measure in test circuit 2, others measure in test circuit 1.
PIN DESCRIPTION
Pin No Symbol Internal Circuit
16
DC Voltage (V) AM FM
60 pF
1
FM RF IN
RFGND
1 2
RF GND (GND 2 for FM RF, FM OSC stage)
VCC 5 3
-
1K
Ω
0
0.8
0
0
FM
3
MIX OUT
MIX
AM MIX 8 GND
3.0
2.9
RF GND 2
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
3
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Silan Semiconductors
Pin No
SA2132
DC Voltage (V) Internal Circuit
VCC 5
Symbol
AM
FM
20K
Ω Ω
5K 1K
AGC (FM IF level 4 output)
4
100K
Ω
Ω Ω
0
0
1K
GND 8 (AGC)
(IF level)
VCC (VCC for AM, 5 FM IF stage)
VCC 5
-
3.0
3.0
6
FM IF IN
6
330
Ω
3.0 3.0
GND 8
3K
7
7
AM IF IN
3K
Ω
Ω
2.3 2.6
GND 8
GND (GND for AM, 8 FM IF stage) 0 0
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
4
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Silan Semiconductors
Pin No
SA2132
Internal Circuit DC Voltage (V) AM
9
Symbol
FM
VCC 5
9
QUAD
2.5
2.2
GND 8
VCC 5
AM FM
750
Ω
10
10
DET OUT
a
b
1.0
0.9
GND 8 a b LOW LOW FM,HIGH AM,HIGH AM FM
11
-2
--
11
AFC
12 VCC 5
3.0
3.0
12
AM OSC
GND 8
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
5
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Silan Semiconductors
Pin No
SA2132
Internal Circuit
13 14
Symbol
DC Voltage (V) AM FM
13
FM OSC
RF GND 2
3.0
3.0
AM/FM SW • SW condition 14 V14=VCC→FM V14=OPEN→AM • VCC for FM RF, FM OSC stage 15 FM RF OUT
VCC 5 AGC 16
14
--
3.0
8 GND
Cf -Pin 1
3.0
3.0
16
AM RF IN
3.0
3.0
GND 8
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
6
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Silan Semiconductors
TEST CIRCUIT1
1K
SA2132
Ω
2.2 FM
μF
DET OUT
AM 4700pF
0.033
VCC = 3 V 0.033 F AM AM RF IN
75
Vin
~
Ω Ω 0.022μF Ω 16
2K
L1 15
0.033
μ
330pF
μ
F
22K
μ
Ω
F
CR
FM L2 14 13 12 T1 11
75
10
9
SA2132
1 FM RF IN
2 T2
3 F 4.7
4
5
6
7
8
330 Vin ~
FM-IF IN 50
Ω
270
Ω
Vin
~
BPF: GFWB7 (Soshin Electric Co., Ltd.) CF1: SFE10.7MA5 (Murata Co., Ltd.) CF2: SFU455B ( Murata Co., Ltd.) CR: CDA10.7 MG92C (Murata Co., Ltd.)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2001.12.03.
7
CF2
Ω
CF1
75
Ω
BPF
μ
0.01
μF
220
F
μ
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TEST CIRCUIT2
F 8V 2SK161 470K
SA2132
Ω
5pF 0.1 220
μ
μ
GND
470K
FM OSC monitor
1K
Ω
Ω
F
(Note)
0.033
16
15
0..