SI4707 Datasheet, PDF (2/3 Pages) Silicon Laboratories – Weather Band and SAME Data Receiver

Si4707
Weather Band and SAME Data Receiver
Selected Weather Band Electrical Specifications
Parameter
Input Frequency
Sensitivity
Adjacent Channel Selectivity
Audio S/N
AFSK Trip Sensitivity
Symbol
f_R
Supply Voltage
Interface Supply Voltage
Supply Current
Powerdown Current
Audio Frequency Response Low
Audio Frequency Response High
V_D, V_A
V_IO
I_FM
I_PD
Test Condition
SINAD = 12 dB
±25 kHz
100% of message correctly
received
–3 dB
–3 dB
Min
162.4
—
—
—
—
2.7
1.5
—
—
3
Typ
Max
Unit
—
162.55
MHz
0.9
—
µV EMF
52
—
dB
45
—
dB
0.7
—
µV EMF
—
5.5
V
—
3.6
V
19.1
—
µA
—
300
Hz
—
—
kHz
Pin Assignments
3 x 3 x 0.55 mm, 20-pin QFN Package Information
NC 1
FMI 2
RFGND 3
NC 4
RST 5
6
20 19 18 17
GND
PAD
7 8 9 10
16
15 NC
14 LOUT
13 ROUT
12 GND
11 VDD
Symbol
A
A1
b
c
D
D2
e
E
E2
Min
0.50
0.00
0.18
0.27
1.60
1.60
Millimeters
Nom
0.55
0.02
0.25
0.32
3.00 BSC
1.70
0.50 BSC
3.00 BSC
1.70
Max
0.60
0.05
0.30
0.37
1.80
1.80
Symbol
f
L
L1
aaa
bbb
ccc
ddd
eee
Millimeters
Min
Nom
Max
2.53 BSC
0.35 0.40 0.45
0.00 — 0.10
—
— 0.10
—
— 0.10
—
— 0.08
—
— 0.10
—
— 0.10
Weather Band
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4.2.08