SI4735-B-EVB Silicon Laboratories Inc, SI4735-B-EVB Datasheet - Page 17

• Manufacturer Part Number: SI4735-B-EVB
• Description: BOARD EVAL SI4735 VERSION B
• Manufacturer: Silicon Laboratories Inc
• Type: Receiverr

Specifications of SI4735-B-EVB

• Frequency: 153kHz ~ 279kHz, 520kHz ~ 1.71GHz, 2.3MHz ~ 21.85MHz, 76MHz ~ 108MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: SI4735
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

2. Typical Application Schematic
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: Antenna Selection and Universal
5. Pin 2 connects to the FM antenna interface, and pin 4 connects to the AM antenna interface.
6. RFGND should be locally isolated from GND.
7. Place Si4734/35 as close as possible to antenna jack and keep the FMI and AMI traces as short as possible.
8. See “AN382: Si4734/35 Designer’s Guide” for further recommendations.
Layout Guide.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
L2
RCLK
SCLK
1.5 to 3.6 V
SDIO
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-B20
C1
LOUT
ROUT
C2
X1
GPO1
GPO2/INT
DCLK
DFS
DOUT
VBATTERY
2.7 to 5.5 V
C3
RCLK
17