SI4735-B20GM Silicon Laboratories Inc, SI4735-B20GM Datasheet - Page 13

• Manufacturer Part Number: SI4735-B20GM
• Description: RECEIVER, RADIO, MULTIBAND, 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4735-B20GM

• Frequency Range: 520kHz To 21.85MHz
• Rf Ic Case Style: QFN
• No. Of Pins: 20
• Supply Voltage Range: 2.7V To 5.5V
• Applications: Audio Video Receivers, CD/DVD Players, Cellular Handsets, Emergency Radios
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 8. AM/SW/LW Receiver Characteristics
(V
Input Frequency
Sensitivity
Large Signal Voltage Handling
Power Supply Rejection Ratio
Audio Output Voltage
Audio S/N
Audio THD
Antenna Inductance
Powerup Time
Notes:
DD
1. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
2. FMOD = 1 kHz, 30% modulation, A-weighted, 2 kHz channel filter.
3. B
4. f
5. Guaranteed by characterization.
6. Analog audio output mode.
7. See “AN388: Si470X/1X/2X/3X/4X Evaluation Board Test Procedure” for evaluation method.
8. V
9. Stray capacitance on antenna and board must be < 10 pF to achieve full tuning range at higher inductance levels.
= 2.7 to 5.5 V, V
Layout and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
RF
AF
IN
= 1000 kHz, f = 10 kHz.
= 5 mVrms.
2,3,4,5, 6
2,3,4,6,8
= 300 Hz to 15 kHz, A-weighted.
Parameter
2,4,8
IO
= 1.5 to 3.6 V, TA = –20 to 85 °C)
2,8
5,7
Symbol
f
RF
ΔV
DD
Medium Wave (AM)
Medium Wave (AM)
Short Wave (SW)
From powerdown
Long Wave (LW)
(S+N)/N = 26 dB
Long Wave (LW)
1
Test Condition
= 100 mV
Rev. 0.5
THD < 8%
RMS
, 100 Hz
Min
153
520
180
2.3
—
54
50
—
—
—
—
—
2800
Typ
300
0.1
—
—
—
25
40
60
56
—
—
Si473x-B20
21.85
1710
Max
279
450
110
0.5
35
67
—
—
—
—
µV EMF
mV
mV
Unit
MHz
kHz
kHz
µH
ms
dB
dB
%
RMS
RMS
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