Si4468/7
HIGH-PERFORMANCE, LOW-CURRENT TRANSCEIVER
Features
Frequency range = 142–1050 MHz Fast wake and hop times
Receive sensitivity = –133 dBm @ Power supply = 1.8 to 3.8 V
100 bps plus fast-scanning AFC for Excellent selectivity performance
standard TCXO applications
Modulation
69 dB adjacent channel
79 dB blocking at 1 MHz
Antenna diversity and T/R switch control
Highly configurable packet handler
TX and RX 64 byte FIFOs
129 bytes dedicated Tx or Rx FIFO
Auto frequency control (AFC)
Automatic gain control (AGC)
Low BOM
(G)FSK, 4(G)FSK, (G)MSK
OOK
Max output power
+20 dBm (Si4468)
+13 dBm (Si4467)
PA support for +27 or +30 dBm
Low active power consumption
10/13 mA RX
Low battery detector
18 mA TX at +10 dBm (Si4467)
Temperature sensor
Ultra low current powerdown modes 20-Pin QFN package
30 nA shutdown, 40 nA standby Sub-GHz 802.15.4 mesh network ready
Pin Assignments
Preamble sense mode
IEEE 802.15.4g, and WMBus compliant
Suitable for FCC Part 90 Mask D, FCC
part 15.247, 15,231, 15,249, ARIB T-108,
T-96, T-67, RCR STD-30, China
regulatory
6 mA average RX current at
1.2 kbps
10 µA average RX current at
50 kbps and 1 sec sleep interval
Fast preamble detection
1 byte preamble detection
Data rate = 100 bps to 1 Mbps
ETSI Category I Operation
EN 300 220
20 19 18 17
SDN
RXp
RXn
TX
1
16
2
15 nSEL
14 SDI
13 SDO
12 SCLK
11 nIRQ
Applications
3
4
5
GND
PAD
Smart metering (802.15.4g and WMBus)
802.15.4 mesh networking
Home security and alarm
Telemetry
Ultra narrowband, long range
applications
NC
Industrial control
Sensor networks
Health monitors
Electronic shelf labels
Low power wireless sensor
6
7
8
9
10
Garage and gate openers
Star and point-to-point networks
Home automation
nodes
Description
Patents pending
Silicon Laboratories' Si446x devices are high-performance, low-current
transceivers covering the sub-GHz frequency bands from 142 to 1050 MHz. The
radios are part of the EZRadioPRO® family, which includes a complete line of
transmitters, receivers, and transceivers covering a wide range of applications. A
high level of integration including support for IEEE 802.15.4 features enables
standards based sub GHz networking solutions. All parts offer outstanding
sensitivity of –133 dBm while achieving extremely low active and standby current
consumption. The Si4468/7 offers frequency coverage in all major bands. The
Si446x includes optimal phase noise, blocking, and selectivity performance for
narrow band and licensed band applications, such as FCC Part90 and 169 MHz
wireless MBus. The 69 dB adjacent channel selectivity with 12.5 kHz channel
spacing ensures robust receive operation in harsh RF conditions, which is
particularly important for narrow band operation. The Si4468 offers exceptional
output power of up to +20 dBm with outstanding TX efficiency. The high output
power and sensitivity results in an industry-leading link budget of 155 dB allowing
extended ranges and highly robust communication links. The Si4467 active mode
TX current consumption of 18 mA at +10 dBm and RX current of 10 mA coupled
with extremely low standby current and fast wake times ensure extended battery
life in the most demanding applications. The Si4468 can achieve up to +27 dBm
output power with built-in ramping control of a low-cost external FET. The devices
can meet worldwide regulatory standards: FCC, ETSI, and ARIB. All devices are
designed to be compliant with 802.15.4g and WMBus smart metering standards.
The devices are highly flexible and can be configured via the Wireless
Development Suite (WDS) available at www.silabs.com.
Rev 1.0 10/14
Copyright © 2014 by Silicon Laboratories
Si4468/7
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