Si4720-A10-GM Silicon Laboratories Inc, Si4720-A10-GM Datasheet - Page 21

• Manufacturer Part Number: Si4720-A10-GM
• Description: RF Transceiver Broadcast FM Radio Transceiver
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4720-A10-GM

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.3. Digital Audio Inputs/Outputs
3.4. Typical Application Schematic Bill of Materials
Component(s)
C2, C3
R1, R2
C1
R3
U1
L1
TX/RX Antenna
RX Antenna
RCLK
SCLK
1.5 to 3.6 V
SDIO
Notes:
1. Si4720/21 is shown configured in I
2. GPO2/INT can be configured for interrupts with the powerup command.
3. To ensure proper operation and FM transmitter performance, follow the
4. Dedicated RX antenna at FMI input optional.
RST
SEN
120 nH
V
guidelines in “AN383: Si47xx 3 mm x 3 mm QFN Universal Layout Guide.”
Silicon Laboratories will evaluate schematics and layouts for qualified customers.
IO
L1
Supply bypass capacitor, 22 nF, 20%, Z5U/X7R
Figure 12. Digital Audio Inputs (DIN, DFS, DCLK)
Si4720/21 FM Radio Transceiver
AC Coupling Capacitor, 0.47 µF
120 nH inductor, Qmin = 30
1
2
3
4
5
Table 16. Si4720/21 Bill of Materials
NC
FMI
RFGND
TXO
RST
Value/Description
600 Ω Resistor
2 kΩ Resistor
V
Si4720/21
IO
Rev. 1.0
2
U1
C compatible bus mode.
DOUT
GND
DFS
DIN
V
DD
15
14
13
12
11
Si4720/21-B20
C1
22 nF
R1
R2
Silicon Laboratories
R3
Supplier(s)
DCLK
DFS
DOUT
DIN
Murata
Murata
Murata
DFS
Any
Any
VBATTERY
2.7 to 5.5 V
21