SI4734-C40-GM Silicon Laboratories Inc, SI4734-C40-GM Datasheet - Page 17

• Manufacturer Part Number: SI4734-C40-GM
• Description: IC RX AM/FM/SW/LW RADIO 20UQFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4734-C40-GM

• Frequency: 153kHz ~ 279kHz, 520kHz ~ 1.71MHz, 2.3MHz ~ 26.1MHz, 64MHz ~ 108MHz
• Modulation Or Protocol: AM, FM, SW-LW
• 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
• Package / Case: 20-UQFN, 20-µQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

2. Typical Application Schematic (QFN)
Notes:
FMI
1. Place C1 close to V
2. All grounds connect directly to GND plane on PCB.
3. Pins 1 and 20 are no connects, leave floating.
4. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
5. Pin 2 connects to the FM antenna interface, and pin 4 connects to the AM antenna interface.
6. Place Si4734/35 as close as possible to antenna and keep the FMI and AMI traces as short as possible.
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
L2
RCLK
SCLK
SDIO
1.85 to 3.6 V
RST
SEN
VIO
L1
C4
C5
DD
pin.
1
2
3
4
5
NC
FMI
RFGND
AMI
RST
Si4734/35-GM
U1
Rev. 1.0
DOUT
ROUT
LOUT
GND
VDD
GPO3
15
14
13
12
11
Optional: for crystal oscillator option
R2
R3
Optional: Digital Audio Output
R1
Si4734/35-C40
C1
LOUT
ROUT
C2
X1
DCLK
GPO1
GPO2/INT
DFS
DOUT
VBATTERY
2.7 to 5.5 V
C3
RCLK
17