SI4313-B1-FM Silicon Laboratories Inc, SI4313-B1-FM Datasheet - Page 43

• Manufacturer Part Number: SI4313-B1-FM
• Description: IC RX FSK 315-915MHZ 20VQFN
• Manufacturer: Silicon Laboratories Inc
• Series: EZRadio®r
• Type: ISM Receiverr

Specifications of SI4313-B1-FM

• Package / Case: 20-VQFN
• Mfg Application Notes: Si4313 Register Desc AppNote
• Frequency: 315MHz, 434MHz, 868MHz, 915MHz
• Sensitivity: -118dBm
• Data Rate - Maximum: 128kbps
• Modulation Or Protocol: FSK, GFSK, OOK
• Applications: Data Logging, Health Monitors, Remote Control, Weather Station
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 1.8 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Operating Frequency: 315 MHz to 915 MHz
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 100 nA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1980-5

12. Pin Descriptions: Si4313
PKG
Pin
2, 3
10
12
13
14
15
16
17
18
19
20
11
1
4
5
6
7
8
9
PADDLE_GND
Pin Name
VDD_DIG
VDD_RF
GPIO_0
GPIO_1
GPIO_2
XOUT
SCLK
nSEL
nIRQ
SDO
VDR
SDN
SDI
XIN
NC
RX
NC
NC
NC
GND
VDD
VDD
I/O
I/O
I/O
I/O
—
—
—
—
O
O
O
O
O
I
I
I
I
I
+1.8 to +3.6 V supply voltage input to all analog +1.7 V regulators. The recommended V
is +3.3 V.
No Connect.
RV input pin to LNA. See application schematic.
No Connect. Not connected internally to any circuitry.
No Connect
General Purpose Digital I/O that may be configured through the registers to perform various functions
including: Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery Detect, etc. See
the SPI GPIO Configuration Registers, Address 0Bh, 0Ch, and 0Dh for more information.
Regulated Output Voltage of the Digital 1.7 V Regulator. A 1 µF decoupling capacitor is required.
Internally this pin is tied to the paddle of the package. This pin should be left unconnected or connected to
GND only.
+1.8 to +3.6 V supply voltage input to the Digital +1.7 V Regulator. The recommended V
is +3.3 V.
0–V
Serial Data input. 0–V
bus.
Serial Clock input. 0–V
serial data bus. Data is clocked into the Si4313 on positive edge transitions.
Serial Interface Select input. 0– V
line serial data bus. The signal is also used to signify burst read/write mode.
General Microcontroller Interrupt Status output. When the Si4313 exhibits anyone of the Interrupt Events
the nIRQ pin will be set low=0. Please see the Control Logic registers section for more information on the
Interrupt Events. The Microcontroller can then determine the state of the interrupt by reading a corre-
sponding SPI Interrupt Status Registers, Address 03h and 04h. No external resistor pull-up is required,
but it may be desirable if multiple interrupt lines are connected.
Crystal Oscillator Output. Connect to an external 30 MHz crystal or to an external signal source.
Crystal Oscillator Input. Connect to an external 30 MHz crystal or leave floating if driving XOUT with
external signal source or TCXO.
Shutdown input pin. 0–V
SDN =1 the chip will be completely shutdown and the contents of the registers will be lost.
The exposed metal paddle on the bottom of the Si4313 supplies the RF and circuit ground(s) for the entire
chip. It is very important that a good solder connection is made between this exposed metal paddle and
the ground plane of the PCB underlying the Si4313.
DD
V digital output that provides a serial readback function of the internal control registers.
VDD
NC
NC
NC
RX
DD
2
3
4
5
1
6
DD
DD
V digital input. This pin provides the serial data stream for the 4-line serial data
V digital input. This pin provides the serial data clock function for the 4-line
20
7
V digital input. SDN should be = 0 in all modes except Shutdown mode. When
Rev. 1.0
19
GND
8
PAD
DD
18
9
V digital input. This pin provides the Select/Enable function for the 4-
17
10
16
11
15 SCLK
14
13
12
Description
SDI
SDO
VDD_DIG
NC
Si4313-B1
DD
DD
supply voltage
supply voltage
43