SI4703-B17-GMR Silicon Laboratories Inc, SI4703-B17-GMR Datasheet - Page 12

• Manufacturer Part Number: SI4703-B17-GMR
• Description: IC TUNER FM RADIO RDS/RBDS 20QFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4703-B17-GMR

• Frequency: 76MHz ~ 108MHz
• Sensitivity: *
• Data Rate - Maximum: *
• Modulation Or Protocol: *
• Applications: *
• Current - Receiving: *
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: *
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: *
• Package / Case: 20-VQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -

Si4703-B17
2. Typical Application Schematic
Notes:
3. Bill of Materials
12
Component(s)
C1
U1
C2, C3
X1
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. Important Note: FM Receiver performance is subject to adherence to antenna design guidelines in “AN231: Si4700/01/
5. Pin 2 connects to the antenna interface, refer to “AN231: Si4700/01/02/03 Headphone and Antenna Interface.”
6. Place Si4703 as close as possible to antenna jack and keep the FMIP trace as short as possible.
7. Refer to Si4702/03 Internal Crystal Oscillator Errata.
8. Refer to "AN299: External 32.768 kHz Crystal Oscillator."
02/03 Headphone and Antenna Interface.” Failure to use these guidelines will negatively affect the performance of the
Si4703, particularly in weak signal and noisy environments. Silicon Laboratories will evaluate schematics and layouts for
qualified customers.
RFGND
RCLK
SCLK
1.5 to 3.6 V
FMIP
SDIO
RST
SEN
VIO
Value/Description
Supply bypass capacitor, 22 nF, ±20%, Z5U/X7R
Si4703 FM Radio Tuner
Crystal load capacitors, 22 pF, ±5%, COG (Optional: for
crystal oscillator option)
32.768 kHz crystal (Optional: for crystal oscillator option)
D
pin.
1
2
3
4
5
NC
FMIP
RFGND
GND
RST
Confidential Rev. 1.0
GND
PAD
ROUT
LOUT
GND
GND
VD
15
14
13
12
11
GPIO3
Optional: for crystal oscillator option
LOUT
ROUT
C1
C2
Murata
Silicon Laboratories
Supplier(s)
Venkel
Epson
X1
GPIO1
GPIO2
GPIO3
C3
VBATTERY
2.7 to 5.5 V
RCLK