SI4700 Datasheet, PDF (2/2 Pages) Silicon Laboratories – Broadcast FM Radio Tuner for Portable Applications

Si4700/01
Broadcast FM Radio Tuner for Portable Applications
Selected Electrical Specifications
Parameter
Symbol
Test Condition
Min
Typ
Max
Input Frequency
Sensitivity
f_RF
76
—
108
(S+N)/N = 26 dB
—
2.5
3.5
RDS Sensitivity
∆f = 2 kHz, RDS BLER = 5%
—
15
—
Input IP3
|f₂ – f₁| > 1 MHz; f₀ = 2 x f₁ – f₂
—
108
—
AGC disabled
Adjacent Channel Selectivity
±200 kHz
35
50
—
Alternate Channel Selectivity
±400 kHz
60
70
—
RCLK Frequency
—
32.768
—
RCLK Frequency Tolerance
–200
—
200
Audio Output Voltage
72
80
90
Audio Band Limits
0 to –3 dB
30
—
15k
Audio S/N
63
Audio THD
—
0.1
0.5
Supply Voltage
Interface Supply Voltage
Ambient Temperature
Supply Current
Powerdown Current
Seek Time
V_D, V_A
V_IO
T_A
I_AD
I_PD
2.7
—
5.5
1.5
—
3.6
–20
25
85
—
17.6
—
—
4
20
—
—
40
SCLK Frequency
Powerup Time
f_CLK
3-wire operation
f_SCL
2-wire operation
From powerdown
0
—
2.5
0
—
400
—
—
50
Unit
MHz
µV EMF
µV EMF
dBµV
dB
dB
kHz
ppm
mVrms
Hz
dB
%
V
V
°C
mA
µA
ms/channel
MHz
kHz
ms
Pin Assignments
Package Information
24 23 22 21 20 19
GND 1
18 VA
FMIP 2
17 GND
RFGND 3
FMIN 4
GND
PAD
16 LOUT
15 ROUT
GND 5
14 GND
GND 6
13 VD
7 8 9 10 11 12
Symbol
A
A1
b
D, E
D2, E2
e
Min
0.80
0.00
0.18
2.20
Millimeters
Nom
0.85
0.02
0.25
4.00 BSC
2.30
0.50 BSC
Max
0.90
0.05
0.30
2.40
Symbol
L
L1
aaa
bbb
ccc
ddd
Millimeters
Min
Nom
Max
0.30
0.40
0.50
0.03
0.05
0.08
—
—
0.10
—
—
0.10
—
—
0.08
—
—
0.10
FM Tuner
Copyright © 2005 by Silicon Laboratories
7.11.05
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