SI4840 Datasheet, PDF (2/3 Pages) Silicon Laboratories – Broadcast Analog Tuning Digital Display AM/FM/SW Radio Receiver

Si4840/44
Broadcast Analog Tuning Digital Display AM/FM/SW Radio Receiver
Selected FM Electrical Specifications
Parameter
Symbol
Conditions
Min
Typ
Max
Units
Input Frequency
Sensitivity
f_RF
64
—
109
MHz
(S+N)/N = 26 dB
—
2.2
—
µV EMF
Input IP3
—
105
—
dBµV EMF
Adjacent Channel Selectivity
±200 kHz
—
50
—
dB
Alternate Channel Selectivity
±400 kHz
—
65
—
dB
Audio Output Voltage
Audio S/N
—
80
—
mV_RMS
—
55
—
dB
Audio THD
—
0.1
0.5
%
Selected AM Electrical Specifications
Parameter
Input Frequency
Sensitivity
Audio S/N
Audio Output Voltage
Audio THD
Antenna Inductance
Symbol
Conditions
Min
Typ
Max
Units
f_RF
AM
504
—
1750
kHz
SW
2.3
—
28.5
MHz
(S+N)/N = 26 dB
—
30
—
µV EMF
—
55
—
dB
—
60
—
mV_RMS
—
0.1
0.5
%
180
—
450
μH
Package Information
Pin Assignments
LNA_EN
1
IRQ
2
TUNE1
3
TUNE2
4
BAND
5
NC
6
NC
7
FMI
8
Table 1. Package Dimensions
RFGND
9
NC
10
Dimension
A
A1
b
c
D
E
E1
Min Nom
—
—
Max
1.75
0.10 —
0.25
0.20 —
0.30
0.10 —
0.25
8.65 BSC
6.00 BSC
3.90 BSC
Dimension
e
L
θ
aaa
bbb
ccc
ddd
Min Nom Max
0.635 BSC
0.40 — 1.27
0°
—
8°
0.20
0.18
0.10
0.10
NC
11
AMI
12
Notes:
1.
2.
3.
4.
All dimensions shown are in millimeters (mm) unless otherwise noted.
Dimensioning and Tolerancing per ANSI Y14.5M-1994.
This drawing conforms to the JEDEC Solid State Outline MO-137, Variation
AE.
Recommended card reflow profile is per the JEDEC/IPC J-STD-020
specification for Small Body Components.
24
LOUT
23
ROUT
22
DBYP
21
VDD2
20
VDD1
19
XTALI
18
XTALO
17
SCLK
16
SDIO
15
RST
14
GND
13
GND
AM/FM/SW Receiver
Copyright © 2011 by Silicon Laboratories
6.13.2011
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