S i 4 7 3 4 / 3 5 - B 2 0
Rev. 1.0
15
Table 11. AM/SW/LW Receiver Characteristics
1
(V
DD
= 2.7 to 5.5 V, V
IO
= 1.5 to 3.6 V, TA = –20 to 85 °C)
Parameter Symbol
Test
Condition
Min
Typ
Max
Unit
Input Frequency
f
RF
Long Wave (LW)
153
—
279
kHz
Medium Wave (AM)
520
—
1710
kHz
Short Wave (SW)
2.3
—
21.85
MHz
Sensitivity
2,3,4,5, 6
(S+N)/N = 26 dB
—
25
35
µV EMF
Large Signal Voltage Handling
5,7
THD < 8%
—
300
—
mV
RMS
Power Supply Rejection Ratio
Δ
V
DD
= 100 mV
RMS
, 100 Hz
—
40
—
dB
Audio Output Voltage
2,8
54
60
67
mV
RMS
Audio S/N
2,3,4,6,8
50 56
—
dB
Audio THD
2,4,8
— 0.1
0.5
%
Antenna Inductance
Long Wave (LW)
—
2800
—
µH
Medium Wave (AM)
180
—
450
Powerup Time
From powerdown
—
—
110
ms
Notes:
1.
To ensure proper operation and receiver performance, follow the guidelines in “AN383: Antenna Selection and
Universal Layout Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
2.
FMOD = 1 kHz, 30% modulation, A-weighted, 2 kHz channel filter.
3.
B
AF
= 300 Hz to 15 kHz, A-weighted.
4.
f
RF
= 1000 kHz,
Δ
f = 10 kHz.
5.
Guaranteed by characterization.
6.
Analog audio output mode.
7.
See “AN388: Evaluation Board Test Procedure” for evaluation method.
8.
V
IN
= 5 mVrms.
9.
Stray capacitance on antenna and board must be < 10 pF to achieve full tuning range at higher inductance levels.
Summary of Contents for SI4734-B20
Page 2: ...Si4734 35 B20 2 Rev 1 0...