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| 型号： | SI4420-D1-FT |
| 厂商： | Silicon Laboratories Inc |
| 文件页数： | 1/32页 |
| 文件大小： | 0K |
| 描述： | IC TXRX FSK 915MHZ 5.4V 16-TSSOP |
| 标准包装： | 96 |
| 频率： | 315MHz，433MHz，868MHz，915MHz |
| 数据传输率 - 最大： | 256kbps |
| 调制或协议： | FSK |
| 功率 - 输出： | -21dbm |
| 灵敏度： | -109dBm |
| 电源电压： | 2.2 V ~ 5.4 V |
| 电流 - 接收： | 15mA |
| 电流 - 传输： | 26mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 16-TSSOP（0.173"，4.40mm 宽） |
| 包装： | 管件 |
| 产品目录页面： | 585 (CN2011-ZH PDF) |
| 其它名称： | 336-1630-5 |
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Si4420 Universal ISM
Band FSK Transceiver
DESCRIPTION
Silicon Labs’ Si4420 is a single chip, low power, multi-channel FSK
transceiver designed for use in applications requiring FCC or ETSI
conformance for unlicensed use in the 315, 433, 868 and 915 MHz
bands. The Si4420 transceiver is a part of Silicon Labs’ EZRadio TM product
line, which produces a flexible, low cost, and highly integrated solution that
does not require production alignments. The chip is a complete analog RF
and baseband transceiver including a multi-band PLL synthesizer with PA,
LNA, I/Q down converter mixers, baseband filters and amplifiers, and an
I/Q demodulator. All required RF functions are integrated. Only an external
crystal and bypass filtering are needed for operation.
The Si4420 features a completely integrated PLL for easy RF design, and
its rapid settling time allows for fast frequency-hopping, bypassing
multipath fading and interference to achieve robust wireless links. The
PLL’s high resolution allows the usage of multiple channels in any of the
bands. The receiver baseband bandwidth (BW) is programmable to
accommodate various deviation, data rate and crystal tolerance
requirements. The transceiver employs the Zero-IF approach with I/Q
demodulation. Consequently, no external components (except crystal and
decoupling) are needed in most applications.
The Si4420 dramatically reduces the load on the microcontroller with the
integrated digital data processing features: data filtering, clock recovery,
data pattern recognition, integrated FIFO and TX data register. The
automatic frequency control (AFC) feature allows the use of a low accuracy
(low cost) crystal. To minimize the system cost, the Si4420 can provide a
clock signal for the microcontroller, avoiding the need for two crystals.
Si4420
PIN ASSIGNMENT
Rev C and later
This document refers to Si4420-IC Rev D1.
See www.silabs.com/integration for any applicable
errata. See back page for ordering information.
FEATURES
? Fully integrated (low BOM, easy design-in)
? No alignment required in production
? Fast-settling, programmable, high-resolution PLL synthesizer
? Fast frequency-hopping capability
? High bit rate (up to 115.2 kbps in digital mode and 256 kbps
in analog mode)
? Direct differential antenna input/output
? Integrated power amplifier
? Programmable TX frequency deviation (15 to 240 KHz)
? Programmable RX baseband bandwidth (67 to 400 kHz)
? Analog and digital RSSI outputs
? Automatic frequency control (AFC)
For low power applications, the Si4420 supports low duty cycle operation
based on the internal wake-up timer.
FUNCTIONAL BLOCK DIAGRAM
?
?
?
?
?
?
Data quality detection (DQD)
Internal data filtering and clock recovery
RX synchron pattern recognition
SPI compatible serial control interface
Clock and reset signals for microcontroller
16 bit RX Data FIFO
RF1 13
RF2 12
LNA
MIX
MIX
I
Q
AMP
AMP
OC
Self cal.
OC
I/Q
DEMOD
Data Filt
CLK Rec
clk
data
7
6
DCLK /
CFIL /
FFIT /
FSK /
DATA /
nFFS
?
?
?
?
Two 8 bit TX data registers
Low power duty cycle mode
Standard 10 MHz crystal reference
Wake-up timer
PA
FIFO
?
?
2.2 to 5.4 V supply voltage
Low power consumption
RF Parts
PLL & I/Q VCO
with cal.
BB Amp/Filt./Limiter
RSSI
COMP
DQD
AFC
Data processing units
?
?
Low standby current (0.3 ? A)
Compact 16 pin TSSOP package
CLK div
Xosc
WTM
with cal.
LBD
Controller
Bias
TYPICAL APPLICATIONS
Low Power parts
?
Remote control
8
CLK
9
XTL /
REF
15
ARSSI
1
SDI
2
SCK
3 4
nSEL SDO
5
nIRQ
10
nRES
16
nINT /
VDI
11
VSS
14
VDD
?
?
?
Home security and alarm
Wireless keyboard/mouse and other PC peripherals
Toy controls
?
?
?
?
Remote keyless entry
Tire pressure monitoring
Telemetry
Remote automatic meter reading
1
Si4420-DS Rev 1.7r 0308
www.silabs.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SI4420-D1-FTR | 功能描述:射频发射器 Transceiver EZRadio RoHS:否 制造商:Micrel 类型:ASK Transmitter 封装 / 箱体:SOT-23-6 工作频率:300 MHz to 450 MHz 封装:Reel |
| SI4420DY | 功能描述:MOSFET 30V 400a N-Ch MOSFET RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI4420DY,518 | 功能描述:MOSFET TRENCH<=30 RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
| SI4420DY | 制造商:Vishay Siliconix 功能描述:MOSFET N SO-8 |
| SI4420DY-E3 | 功能描述:MOSFET 30V 12.5A 2.5W RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube |
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