SI4734-C40-GM Silicon Laboratories Inc, SI4734-C40-GM Datasheet - Page 18

• 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

Si4734/35-C40
3. Typical Application Schematic (SSOP)
Notes:
18
FMI
1. Place C1 close to V
2. All grounds connect directly to GND plane on PCB.
3. Pins 6 and 7 are no connects, leave floating.
4. Pins 10 and 11 are unused. Tie these pins to GND.
5. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
6. Pin 8 connects to the FM antenna interface, and pin 12 connects to the AM antenna interface.
7. 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.
GPIO3
Optional: Digital Audio Output
Optional: for crystal oscillator option
L2
GPO3/DCLK
DOUT
DFS
GPO2/INT
L1
DD
C2
C4
GPO1
and DBYP pins.
C4
C5
X1
RFGND
NC
NC
NC
NC
R3
R2
R1
AMI
C3
RCLK
1
2
3
4
5
6
7
8
9
10
11
12
Rev. 1.0
24
23
22
21
20
19
18
17
16
15
14
13
VDD
DBYP
VIO
GND
1.85 to 3.6 V
LOUT
RCLK
SDIO
SEN
ROUT
SCLK
RST
C1
2.0 to 5.5 V