SI4735-B20-GM Silicon Laboratories Inc, SI4735-B20-GM Datasheet - Page 17

• Manufacturer Part Number: SI4735-B20-GM
• Description: IC RX AM/FM/SW/LW RAD RDS 20UQFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4735-B20-GM

• Package / Case: 20-UQFN, 20-µQFN
• Frequency: 153kHz ~ 279kHz, 520kHz ~ 1.71MHz, 2.3MHz ~ 21.85MHz, 64MHz ~ 108MHz
• Modulation Or Protocol: AM, FM, LW-SW, WB
• Applications: General Purpose
• Current - Receiving: 19.9mA
• 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
• Bus Type: I2C
• Maximum Frequency: 108 MHz, 1710 MHz
• Minimum Frequency: 76 MHz, 520 MHz
• Modulation Technique: AM, FM
• Mounting Style: SMD/SMT
• Function: Radio
• Supply Voltage (min): 2.7 V
• Supply Voltage (max): 5.5 V
• Minimum Operating Temperature: - 20 C
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Compliant

5. Pin Descriptions: Si473x-GM
Pin Number(s)
12, GND PAD
1, 20
10
13
14
15
16
17
18
19
11
2
3
4
5
6
7
8
9
GPO3/DCLK
GPO2/INT
RFGND
ROUT
DOUT
Name
RCLK
LOUT
GPO1
SCLK
SDIO
GND
SEN
RST
DFS
AMI
V
FMI
NC
V
DD
IO
No connect. Leave floating.
FM/WB/SW RF inputs. FMI should be connected to the antenna trace.
RF ground. Connect to ground plane on PCB.
AM/SW/LW RF input. AMI should be connected to the AM antenna.
Device reset (active low) input.
Serial enable input (active low).
Serial clock input.
Serial data input/output.
External reference oscillator input.
I/O supply voltage.
Supply voltage. May be connected directly to battery.
Ground. Connect to ground plane on PCB.
Right audio line output in analog output mode.
Left audio line output in analog output mode.
Digital output data in digital output mode.
Digital frame synchronization input in digital output mode.
General purpose output, crystal oscillator, or digital bit synchronous clock input
in digital output mode.
General purpose output or interrupt pin.
General purpose output.
RFGND
RST
AMI
FMI
NC
2
3
4
5
1
6
20
7
Rev. 0.5
19
8
GND
PAD
18
9
17
10
Description
16
11
15 DOUT
14
13
12
LOUT
ROUT
GND
VDD
Si473x-B20
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