SI4738-B20-GMR Silicon Laboratories Inc, SI4738-B20-GMR Datasheet - Page 15
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SI4738-B20-GMR
Manufacturer Part Number
SI4738-B20-GMR
Description
IC RX FM/WB RADIO 20UQFN
Manufacturer
Silicon Laboratories Inc
Datasheet
1.SI4735-B-EVB.pdf
(24 pages)
Specifications of SI4738-B20-GMR
Frequency
76MHz ~ 108MHz, 162.4MHz ~ 162.55MHz
Modulation Or Protocol
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
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SI4738-B20-GMR
Manufacturer:
M/A-COM
Quantity:
1 001
3. Typical AM/FM Application Schematic
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. RFGND should be locally isolated from GND.
7. Place Si473x as close as possible to antenna jack and keep the FMI and AMI traces as short as possible.
AM antenna
Layout and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
RCLK
SCLK
1.5 to 3.6 V
SDIO
RST
SEN
FMIP
VIO
L1
C5
DD
pin.
1
2
3
4
5
FMI
RFGND
AMI
RST
NC
Si473x-GM
U1
Rev. 0.5
ROUT/DOUT
LOUT/DFS
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
Si473x-B20
C5
GPO1
GPO2/INT
GPO3/DCLK
DFS
X1
DOUT
VBATTERY
2.7 to 5.5 V
C3
RFGND
RCLK
AMI
15