SI4731-B20-GMR Silicon Laboratories Inc, SI4731-B20-GMR Datasheet - Page 14

• Manufacturer Part Number: SI4731-B20-GMR
• Description: IC RX RADIO MULTI-BAND RDS 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4731-B20-GMR

• Frequency: 520kHz ~ 1.71MHz, 76MHz ~ 108MHz
• Modulation Or Protocol: AM, FM
• Applications: General Purpose
• Current - Receiving: 10mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-UQFN, 20-µQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -

Table 9. WB Receiver Characteristics
(V
Si473x-B20
14
Table 10. Reference Clock and Crystal Characteristics
(V
Parameter
Input Frequency
Sensitivity
Adjacent Channel Selectivity
Audio S/N
Audio Frequency Response Low
Audio Frequency Response High
Notes:
RCLK Supported Frequencies
RCLK Frequency Tolerance
REFCLK_PRESCALE
REFCLK
Crystal Oscillator Frequency
Crystal Frequency Tolerance
Board Capacitance
Notes:
DD
DD
1. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
2. F
3. f = 3 kHz.
4. V
5. A-weighted.
6. Guaranteed by characterization
1. The Si473x divides the RCLK input by REFCLK_PRESCALE to obtain REFCLK. There are some RCLK frequencies
2. A frequency tolerance of ±50 ppm is required for FM seek/tune using 50 kHz channel spacing, SW seek/tune, and WB
= 2.7 to 5.5 V, VIO = 1.5 to 3.6V, T
= 2.7 to 5.5 V, V
Layout and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
between 31.130 kHz and 40 MHz that are not supported. See “AN332: Si47xx Programming Guide,” Table 6 for more
details.
tune.
MOD
EMF
2,3
2,3,4,5
= 1 mV.
= 1 kHz.
Parameter
IO
= 1.5 to 3.6 V, T
2
2
1
6
6
A
A
= 25 °C)
= –20 to 85 °C)
Symbol
Symbol
1
f
R
Crystal Oscillator
Reference Clock
Test Condition
Rev. 0.5
Test Condition
SINAD = 12 dB
±25 kHz
–3 dB
–3 dB
Mono
31.130
31.130
–100
Min
–50
—
—
1
162.4
Min
—
—
—
—
3
32.768
32.768
32.768
Typ
—
—
—
—
Typ
0.9
52
45
—
—
—
40,000
34.406
162.55
4095
Max
100
Max
3.5
300
50
—
—
—
—
—
µV EMF
MHz
Unit
Unit
ppm
ppm
kHz
kHz
kHz
kHz
dB
dB
Hz
pF