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參數資料
| 型號： | SI4020-I1-FT |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數： | 1/32頁 |
| 文件大小： | 1058K |
| 描述： | IC TX FSK 915MHZ 5.4V 16-TSSOP |
| 標準包裝： | 96 |
| 頻率： | 315MHz，433MHz，868MHz，和 915MHz |
| 調制或協議： | FSK，OOK |
| 數據傳輸率 - 最大： | 256 kbps |
| 電流 - 傳輸： | 14mA |
| 數據接口： | PCB，表面貼裝 |
| 天線連接器： | PCB，表面貼裝 |
| 電源電壓： | 2.2 V ~ 5.4 V |
| 工作溫度： | -40°C ~ 85°C |
| 封裝/外殼： | 16-TSSOP（0.173"，4.40mm 寬） |
| 包裝： | 管件 |
| 產品目錄頁面： | 585 (CN2011-ZH PDF) |
| 其它名稱： | 336-1621-5 |
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1
Si4020-DS Rev 1.9r 0308
www.silabs.com/integration
Si4020
PIN ASSIGNMENT
Microcontroller Mode
EEPROM Mode
This document refers to Si4020-IC Rev I1.
See www.silabs.com/integration for any applicable
errata. See back page for ordering information.
Si4020 Universal ISM
Band FSK Transmitter
DESCRIPTION
Silicon Labs Si4020 is a single chip, low power, multi-channel FSK
ransmitter designed for use in applications requiring FCC or ETSI
conformance for unlicensed use in the 315, 433, 868, and 915 MHz bands.
Used in conjunction with IA4320, Silicon Labs FSK receiver, the Si4020
transmitter feature EZRadio
TM
technology, which produces a flexible, low
cost, and highly integrated solution that does not require production
alignments. All required RF functions are integrated. Only an external crystal
and bypass filtering are needed for operation.
The Si4020 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. In addition, highly
stable and accurate FSK modulation is accomplished by direct closed-loop
modulation with bit rates up to 256 kbps. The PLLs high resolution allows
the use of multiple channels in any of the bands.
The integrated power amplifier of the transmitter has an open-collector
differential output that directly drive a loop antenna with programmable
output level. No additional matching network is required. An automatic
antenna tuning circuit is built in to avoid costly trimming procedures and de-
tuning due to the hand effect .
For low-power applications, the device supports automatic activation from
sleep mode. Active mode can be initiated by several wake-up events (on-chip
timer timeout, low supply voltage detection, or activation of any of the four
push-button inputs).
The Si4020s on-chip digital interface supports both a microcontroller mode
and an EEPROM mode. The latter allows complete data transmitter
operation without a microcontroller (both control commands and data are
read from the EEPROM). Any wake-up event can start a transmission of the
corresponding data stored in the EEPROM.
FUNCTIONAL BLOCK DIAGRAM
CRYSTAL
OSCILLATOR
SYNTHESIZER
LOW
BATTERY
DETECT
WAKE-UP
TIMER
CONTROLLER
REFERENCE
LOAD CAP
LOW BAT
TRESHOLD
TIMEOUT
PERIOD
CLOCK
FREQUENCY
LEVEL
RFP
RFN
nIRQ/nLBD
CLK/SDO
SDI
SCK
nSEL
FSK
PB4
PB3
PB2
PB1
VSS
VDD
MOD
XTL
OOK
FEATURES
" Fully integrated (low BOM, easy design-in)
" No alignment required in production
" Fast settling, programmable, high-resolution PLL
" Fast frequency hopping capability
" Stable and accurate FSK modulation with programmable
deviation
" High bit rate (up to 256 kbps)
" Direct loop antenna drive
" Automatic antenna tuning circuit
" Programmable output power level
" Alternative OOK support
" EEPROM mode supported
" SPI bus for applications with microcontroller
" Clock output for microcontroller
" Integrated programmable crystal load capacitor
" Power-saving sleep mode
" Multiple event handling options for wake-up activation
" Push-button event handling with switch de-bounce
" Wake-up timer
" Low battery detection
" 2.2 to 5.4 V supply voltage
" Low power consumption
" Low standby current (0.3 礎)
" Compact 16-pin TSSOP package
TYPICAL APPLICATIONS
" Remote control
" Home security and alarm
" Wireless keyboard/mouse and other PC peripherals
" Toy control
" Remote keyless entry
" Tire pressure monitoring
" Telemetry
" Personal/patient data logging
" Remote automatic meter reading
相關PDF資料 |
PDF描述 |
|---|---|
| SI4021-A1-FT | IC TX FSK 915MHZ 5.4V 16-TSSOP |
| SI4022-A0-FT | IC TX FSK UNI 868/915MHZ 16TSSOP |
| SI4711-B30-GM | IC TX FM RADIO 76-108MHZ 20UQFN |
| SI4713-B30-GMR | IC TX FM RADIO RPS/RDS 20UQFN |
| SKY12146-321LF | IC VAR VOLT ATTEN 12QFN |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SI4020-I1-FTR | 功能描述:射頻發射器 Transmitter EZRadio RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| SI-40219 | 制造商:BEL 制造商全稱:Bel Fuse Inc. 功能描述:SI-40219 |
| Si4021-A1-FT | 功能描述:射頻發射器 Transmitters IA4221 RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| SI4021-A1-FTR | 功能描述:射頻發射器 Transmitter EZRadio RoHS:否 制造商:Micrel 類型:ASK Transmitter 封裝 / 箱體:SOT-23-6 工作頻率:300 MHz to 450 MHz 封裝:Reel |
| SI-40222 | 制造商:BEL 制造商全稱:Bel Fuse Inc. 功能描述:SI-40222 |
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