Datasheet > Si4438

Si4438

更新时间： 2024-11-07 01:20:03

品牌	Logo	应用领域
芯科 - SILICON		/
页数	文件大小	规格书
44页	1207K
描述
Low active power consumption

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中文翻译

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数据手册

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Si4438 数据手册

Si4438-C

HIGH-PERFORMANCE, LOW-CURRENT TRANSCEIVER

Features

 Frequency

 Excellent selectivity performance

range = 425–525 MHz

58 dB adjacent channel

75 dB blocking at 1 MHz

 Antenna diversity and T/R switch

control

 Receive sensitivity = –124 dBm

 Modulation

(G)FSK

OOK

 Highly configurable packet handler

 TX and RX 64 byte FIFOs

 Auto frequency control (AFC)

 Automatic gain control (AGC)

 Low BOM

 Max output power

+20 dBm

 Low active power consumption

14 mA RX

 Ultra low current powerdown

modes

30 nA shutdown, 40 nA standby

 Data rate = 100 bps to 500 kbps

 Low battery detector

Pin Assignments

 Temperature sensor

 20-Pin QFN package

 IEEE 802.15.4g ready

 Preamble Sense Mode

 Suitable for China regulatory (State

6 mA average Rx current at

Grid)

1.2 kbps

 Fast wake and hop times

 Power supply = 1.8 to 3.8 V

Applications

 China smart meters

Description

Silicon Laboratories' Si4438 is

high-performance, low-current

Patents pending

transceivers covering the sub-GHz frequency bands from 425 to

525 MHz. The Si4438 is targeted at the Chinese smart meter market and

is especially suited for electric meters. This device is footprint- and

pin-compatible with the Si446x radios, which provide industry-leading

performance for worldwide sub-GHz applications. The radios are part of

the EZRadioPRO family, which includes a complete line of transmitters,

receivers, and transceivers covering a wide range of applications. All

parts offer outstanding sensitivity of –124 dBm while achieving extremely

low active and standby current consumption. The 58 dB adjacent channel

selectivity with 12.5 kHz channel spacing ensures robust receive

operation in harsh RF conditions. The Si4438 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 144 dB

allowing extended ranges and highly robust communication links.

Rev 1.0

Si4438-C

12 3 4 5 6 7...44

中文翻译

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与Si4438相关器件

型号	品牌	获取价格	描述	数据表
SI4438-C	SILICON	获取价格	Low active power consumption
SI4438-C2A-GM	SILICON	获取价格	Telecom Circuit, 1-Func, LEAD FREE, MO-220VGGD-8, QFN-20
SI4438-C2A-GMR	SILICON	获取价格	Telecom Circuit, 1-Func, LEAD FREE, MO-220VGGD-8, QFN-20
SI4438DY-T1-GE3	VISHAY	获取价格	N-CHANNEL 30-V (D-S) MOSFET - Tape and Reel
SI4441EDY-E3	VISHAY	获取价格	Small Signal Field-Effect Transistor, 8.1A I(D), 30V, 1-Element, P-Channel, Silicon, Metal
SI4441EDY-T1-E3	VISHAY	获取价格	Small Signal Field-Effect Transistor, 8.1A I(D), 30V, 1-Element, P-Channel, Silicon, Metal
SI4442DY	NSC	获取价格	N-Channel FET Synchronous Buck Regulator Controller for Low Output Voltages
Si4442DY	TI	获取价格	LM2727/LM2737 N-Channel FET Synchronous Buck Regulator Controller
SI4442DY	VISHAY	获取价格	N MOS
SI4442DY-T1	VISHAY	获取价格	Power Field-Effect Transistor, N-Channel, Metal-oxide Semiconductor FET

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