Preliminary Rev. 0.4 5/09
Copyright © 2009 by Silicon Laboratories
Si4430
This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
S i 4 4 3 0
S i 4 4 3 0 I S M T
R A N S C E I V E R
Features
Applications
Description
Silicon Laboratories’ Si4430 highly integrated, single chip wireless ISM
transceiver is part of the EZRadioPRO™ family. The EZRadioPRO family includes
a complete line of transmitters, receivers, and transceivers allowing the RF
system designer to choose the optimal wireless part for their application.
The Si4430 offers advanced radio features including continuous frequency
coverage from 900–960 MHz The Si4430’s high level of integration offers reduced
BOM cost while simplifying the overall system design. The extremely low receive
sensitivity (–118 dBm) coupled with industry l20 dBm output power
ensures extended range and improved link performance. Built-in antenna diversity
and support for frequency hopping can be used to further extend range and
enhance performance.
Additional system features such as an automatic wake-up timer, low battery
detector, 64 byte TX/RX FIFOs, automatic packet handling, and preamble
detection reduce overall current consumption and allow the use of lower-cost
system MCUs. An integrated temperature sensor, general purpose ADC, power-
on-reset (POR), and GPIOs further reduce overall system cost and size.
The Si4430’s digital receive architecture features a high-performance ADC and
DSP based modem which performs demodulation, filtering, and packet handling
for increased flexibility and performance. This digital architecture simplifies
system design while allowing for the use of lower-end MCUs. The direct digital
transmit modulation and automatic PA power ramping ensure precise transmit
modulation and reduced spectral spreading ensuring compliance with ARIB
regulations.
Frequency Range = 900–960 MHz
Sensitivity = –118 dBm
+13 dBm Max Output Power
Configurable –8 to +13 dBm
Low Power Consumption
18.5 mA receive
28 mA @ +13 dBm transmit
Data Rate = 1 to 128 kbps
Power Supply = 1.8 to 3.6 V
Ultra low power shutdown mode
Digital RSSI
Wake-on-radio
Auto-frequency calibration (AFC)
Antenna diversity and TR switch
control
Configurable packet structure
Preamble detector
TX and RX 64 byte FIFOs
Low battery detector
Temperature sensor and 8-bit ADC
–40 to +85 °C temperature range
Integrated voltage regulators
Frequency hopping capability
On-chip crystal tuning
20-Pin QFN package
FSK, GFSK, and OOK modulation
Low BOM
Power-on-reset (POR)
Remote control
Home security & alarm
Telemetry
Personal data logging
Toy control
Tire pressure monitoring
Wireless PC peripherals
Remote meter reading
Remote keyless entry
Home automation
Industrial control
Sensor networks
Health monitors
Tag readers
Patents pending
Ordering Information:
Pin Assignments
VDD_RF
1
2
3
4
15
14
13
12
6
7
8
9
19 18 17
20
TX
RXp
RXn
SCLK
SDI
SDO
VDD_DIG
NC
GPI
O
_
0
GPI
O
_
1
GPI
O
_
2
XIN
XO
UT
SD
N
nIR
Q
Metal
Paddle
5
11
VR_IF
NC
10
16
VD
R
nSE
L
Si4430
