SI4731 Silicon Laboratories, SI4731 Datasheet - Page 2

• Manufacturer Part Number: SI4731
• Description: (SI4730 / SI4731) Broadcast AM/FM Radio Receiver
• Manufacturer: Silicon Laboratories

www.DataSheet4U.com
Selected FM Electrical Specifications
Selected AM Electrical Specifications
AM/FM Receiver
Input Frequency
Sensitivity headphone matching
Sensitivity 50 Ω matching
Input IP3
Adjacent Channel Selectivity
Alternate Channel Selectivity
Audio Band Limits
Audio S/N
Audio THD
Audio Output Voltage
Supply Voltage*
Interface Supply Voltage*
Powerdown Current*
*Note: Applies to both FM and AM modes.
Input Frequency
Sensitivity
Audio S/N
Audio THD
Audio Output Voltage
Antenna Inductance
RFGND
RST
AMI
FMI
NC
Pin Assignments
Other products or brandnames mentioned herein are trademarks or registered trademarks of their respective holders.
2
3
4
5
1
6
Parameter
Parameter
20
7
19
GND
8
PAD
18
9
17
10
Silicon Laboratories and Silicon Labs are trademarks of Silicon Laboratories Inc.
16
11
15 NC
14
13
12
LOUT
ROUT
GND
VDD
Symbol
Symbol
V
D
V
f
I
f
RF
PD
RF
Copyright © 2007 by Silicon Laboratories
, V
IO
A
Symbol
|f
3 x 3 x 0.55 mm, 20-pin QFN Package Information
2
A1
D2
E2
A
D
E
b
c
e
– f
1
| > 1 MHz; f
(S+N)/N = 26 dB
(S+N)/N = 26 dB
(S+N)/N = 26 dB
Test Condition
Test Condition
0.50
0.00
0.18
0.27
1.60
1.60
Min
±200 kHz
±400 kHz
±1.5 dB
Millimeters
Broadcast AM/FM Radio Receiver
3.00 BSC
0.50 BSC
3.00 BSC
0
Nom
0.55
0.02
0.25
0.32
1.70
1.70
= 2 x f
1
– f
Max
0.60
0.05
0.30
0.37
1.80
1.80
2
Min
520
180
Min
2.7
1.5
54
76
30
72
—
—
—
—
—
—
—
—
—
—
—
Symbol
aaa
bbb
ddd
eee
ccc
L1
L
f
Typ
Typ
105
0.1
2.2
1.1
0.1
—
38
58
60
—
50
70
63
80
10
—
—
—
—
Si4730/31
0.35
0.00
Min
—
—
—
—
—
1710
Max
Max
600
108
15k
5.5
3.6
66
—
—
—
Millimeters
90
—
—
—
—
—
—
—
—
2.53 BSC
Nom
0.40
—
—
—
—
—
—
dBµV EMF
µV EMF
µV EMF
µV EMF
mVrms
mVrms
Unit
MHz
Unit
kHz
µA
dB
µH
Max
0.45
0.10
0.10
0.10
0.08
0.10
0.10
dB
dB
Hz
dB
6.15.07
%
%
V
V