SI4736-C40-GM Silicon Laboratories Inc, SI4736-C40-GM Datasheet - Page 17

• Manufacturer Part Number: SI4736-C40-GM
• Description: IC RX AM/FM/WB RADIO 20UQFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4736-C40-GM

• Frequency: 520kHz ~ 1.71MHz, 64MHz ~ 108MHz, 162.4MHz ~ 162.55MHz
• Modulation Or Protocol: AM, FM, 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
• 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: Compliant

2. Typical Application Schematic (QFN)
Notes:
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 Si4736/37/38/39 as close as possible to antenna and keep the FMI and AMI traces as short as possible.
AM antenna
Si4736/37 only
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
RCLK
SCLK
1.85 to 3.6 V
SDIO
RST
SEN
FMIP
VIO
L1
C5
DD
pin.
1
2
3
4
5
FMI
RFGND
AMI
RST
NC
Si4736/37/38/39-GM
U1
Rev. 1.0
ROUT/DOUT
LOUT/DFS
Si4736/37/38/39-C40
DOUT
GND
VDD
GPO3
15
14
13
12
11
Optional: for crystal oscillator option
R1
R2
Optional: Digital Audio Output
R3
L2
Optional: AM air loop antenna
C1
LOUT
ROUT
C2
T1
C5
GPO1
GPO2/INT
GPO3/DCLK
DFS
X1
DOUT
VBATTERY
2.7 to 5.5 V
C3
RFGND
RCLK
AMI
17