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SI4741 데이터시트(PDF) 2 Page - Silicon Laboratories

부품명 SI4741
상세설명  Automotive AM/FM Radio Receiver
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제조업체  SILABS [Silicon Laboratories]
홈페이지  http://www.silabs.com
Logo SILABS - Silicon Laboratories

SI4741 데이터시트(HTML) 2 Page - Silicon Laboratories

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AM/FM Receiver
Copyright © 2008 by Silicon Laboratories
10.23.08
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
Si4740/41/42/43/44/45
Automotive AM/FM Radio Receiver
Selected Electrical Specifications1
(VDD = 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, TA = –40 to 85 °C)
Parameter
Test Condition
Min
Typ
Max
Unit
FM
Input Frequency
64
108
MHz
Sensitivity
(S+N)/N = 26 dB
2
µV EMF
RDS Sensitivity
f = 2 kHz, RDS BLER < 5%
8
µV EMF
Audio S/N (Mono)2,3
fMOD = 1 kHz, f = 22.5 kHz,
VEMF = 60 dBµVEMF
63
dB
Audio THD (Mono)2,3
fMOD = 1 kHz, f = 75 kHz,
VEMF = 60 dBµVEMF
0.1
%
Input IP3
f1 = 4000 kHz; f2 = 8000 kHz
105
dBµV EMF
Audio Output Voltage
80
mVrms
Adjacent Channel Selectivity
±200 kHz
50
dB
Alternate Channel Selectivity
±400 kHz
70
dB
AM Suppression4
m = 0.3;
f = 22.5 kHz; f
RF = 76 to 108 MHz;
Measured at VEMF = 60 dBµVEMF
55
dB
Audio Stereo Separation4
fRF = 76 to 108 MHz; Measured at VEMF =
60 dBµVEMF; f = 75 kHz
45
dB
Supply Voltage5
3
3.6
V
Supply Current5
26
mA
AM
Input Frequency
520
1710
kHz
Sensitivity
(S+N)/N = 26 dB
28
µV EMF
Audio S/N4,6
30% modulation, fMOD =1 kHz,
RF level = 74 dBµV EMF;
f = 22.5 kHz
53
dB
Audio THD4,6
30% modulation, fMOD =1 kHz,
RF level = 74 dBµV EMF;
f = 22.5 kHz
0.3
%
Input IP37
f1 = 40 kHz; f2 = 80 kHz
112
dBµV
Audio Output Voltage4
54
60
66
mVrms
Adjacent Channel Selectivity
±10 kHz
40
dB
Alternate Channel Selectivity
±20 kHz
60
dB
Notes:
1.
Specifications refer to Si474x application circuit input.
2.
BAF = 300 Hz to 15 kHz.
3.
fRF = 76 to 108 MHz.
4.
FMOD = 1 kHz, 75 µs de-emphasis, MONO = enabled, and L = R unless noted otherwise.
5.
Applies to both FM and AM modes.
6.
AGC is disabled.
7.
Specification refers to Si474x input.
Pin Assignments
GND
PAD
1
2
3
21
22
23
24
14
15
16
17
7
8
9
10
4
5
20
13
11
19
18
12
6
DFS
DOUT
LOUT
ROUT
AMI
FMI
NC
GND
RFGND
AGC1
VDD
GND
Symbol
Millimeters
Min
Nom
Max
A
0.80
0.85
0.90
A1
0.00
0.02
0.05
b
0.18
0.25
0.30
D
4.00 BSC
D2
2.00
2.10
2.20
e
0.50 BSC
E
4.00 BSC
E2
2.00
2.10
2.20
L
0.30
0.40
0.50
aaa
0.10
bbb
0.10
ccc
0.08
ddd
0.10
eee
0.10
4x4x0.85 mm 24-pin QFN Package Information


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