SI4712 Datasheet, PDF (2/3 Pages) Silicon Laboratories – FM Radio Transmitter with Receive Power Scan

Si4712/13
FM Radio Transmitter with Receive Power Scan
Selected Electrical Specifications
Parameter
Transmit Frequency Range
Programmable Transmit Output Voltage,
TXO
Transmit Voltage Accuracy
Transmit Voltage Step
Transmit Channel Edge Power
Transmit Adjacent Channel Power
Pre-Emphasis Time Constant
Audio SNR Mono
Audio THD Mono
Audio Stereo Separation
Sub Carrier Rejection Ratio
Input Signal Level (0 dB)
Audio Bandwidth (3 dB)
Audio Imbalance
Powerup Settling Time
Supply Voltage
Interface Supply Voltage
TX Supply Current
TX Interface Supply Current
Pin Assignments
Symbol
f_RF
Test Condition
Min Typ Max
76
— 108
— 118 —
SCR
V_AI
V_DD
V_IO
I_TX
I_IO
V_RF = 102–118 dBµV
–2.5 —
—
1
—
—
— –30
TX_PREMPHASIS = 75 µs 70
75
TX_PREMPHASIS = 50 µs 45
50
—
63
—
0.1
30
35
40
50
—
—
30
—
From Powerdown
–1
—
—
—
2.7 —
FM TX from Line Input
1.5 —
— 18.8
— 320
Package Information
2.5
2
–20
–26
80
54
—
0.5
—
—
0.636
15 k
1
110
5.5
3.6
22.8
600
Unit
MHz
dBµV
dB
dB
dBC
dBC
µs
µs
dB
%
dB
dB
V_pk
Hz
dB
ms
V
V
mA
µA
NC 1
NC 2
RFGND 3
TXO 4
RST 5
6
20 19 18 17 ₁₆
15 RIN
GND
PAD
14 DFS
13 DIN
12 GND
7 8 9 10 ^{11 VDD}
Symbol
Millimeters
Min
Nom
Max
A
0.50
0.55
0.60
A1
0.00
0.02
0.05
b
0.20
0.25
0.30
c
0.27
0.32
0.37
D
3.00 BSC
D2
1.65
1.70
1.75
e
0.50 BSC
E
3.00 BSC
E2
1.65
1.70
1.75
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
—
—
0.05
—
—
0.05
—
—
0.08
—
—
0.10
—
—
0.10
FM Tuner
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4.3.08