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參數(shù)資料
| 型號： | WI125 |
| 廠商： | Connor-Winfield |
| 文件頁數(shù)： | 18/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC GPS TIMING RECEIVER-OEM SMT |
| 產(chǎn)品培訓模塊： | 125 Series GPS Based Timing and Synchronization Products |
| 特色產(chǎn)品： | Wi125 GPS Timing Receiver |
| 標準包裝： | 1 |
| 類型： | 定時模塊，系統(tǒng)時鐘 |
| PLL： | 無 |
| 主要目的： | GPS，WiMax |
| 輸入： | 時鐘 |
| 輸出： | 時鐘 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 1:2 |
| 差分 - 輸入:輸出： | 無/無 |
| 頻率 - 最大： | 10MHz |
| 電源電壓： | 1.65 V ~ 3.6 V |
| 工作溫度： | -30°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 42-QFN |
| 包裝： | 散裝 |
| 其它名稱： | CW680 W125 |
Wi125 Data Sheet #:
SG170
Page 9 of 20
Rev:
04
Date:
11/29/11
Copyright 2011 The Connor-Winfield Corp. All Rights Reserved
Specifications subject to change without notice
RF_3V3
Type:Power
Direction:Input
Pin:19
TheRFSupplyInput.This3.3V±10%inputsuppliesthe2.9VLDOregulatorintheRF
sectionoftheWi125.Itisimportantthatthissupplyiswellfilteredwithnomorethat
50mVpeaktopeaknoisewithrespecttoRF_GND.
RF_GND
Type:Power
Direction:Input/Output
Pins:18,23,25
TheRFInputGround.ThisisthereturnpathfortheRF_3V3supplyandthegroundfor
theantennafeed.TheRF_GNDmustbetiedtotheDIG_GNDexternallytotheWi125.
RFV_OUT
Type:Power
Direction:Output
Pin:17
TheoutputfromtheLDOregulatorthatispoweredbytheRF_3V3signal.Thissupplies
thepowertotheRFsubsystemoftheWi125.Thismayalsobeusedtopowerexternal
RFcomponentsbutcaremustbetakennottoinjectnoiseontothissignal.Nomorethan
anadditional30mAmaybetakenfromthissignalbyexternalcircuitry.
ANT_SUPPLY
Type:Power
Direction:Input
Pin:26
TheAntennaSupplyVoltage.ThismaybeusedtosupplypowertotheRF_INsignal,for
usebyanactiveantenna.Themaximumvoltageshouldnotexceed±15Vandthecurrent
shouldbelimitedto50mA.
DIG_3V3
Type:Power
Direction:Input
Pin:36
TheDigitalSupplyInput.This3.3V±10%inputsuppliestheI/OringoftheBB25ICchip
andtheLDOregulatorinthedigitalsectionoftheWi125.Itisimportantthatthissupplyis
wellfilteredwithnomorethat50mVpeaktopeaknoisewithrespecttoDIG_GND.
DIG_1V8
Type:Power
Direction:Input
Pin:34
The1.8V±5%digitalcoresupplyfortheBB25IC.Thisisnormallyconnecteddirectly
tothe+1V8_OUTsignal.However,ifanexternal1.8V±5%isavailable,aloweroverall
systempowerconsumptionmaybeachievedbyusinganexternalsupply.
+1V8_OUT
Type:Power
Direction:Output
Pin:33
The1.8VoutputfromtheLDOregulatorthatispoweredbytheDIG_3V3signal.Normally,
thisisconnectedtotheDIG_1V8signal.Thismayalsobeusedtopowerexternallogic
butcaremustbetakennottoinjectnoiseontothissignal.Nomorethananadditional
50mAmaybetakenfromthissignalbyexternallogic.
DIG_GND
Type:Power
Direction:Input/Output
Pin:35
TheDigitalGround.ThisisthereturnpathfortheDIG_3V3supplyandthegroundreference
forallthedigitalI/O.TheDIG_GNDmustbetiedtotheRF_GNDexternallytotheWi125.
4 SIGNAL DESCRIPTION
ThesignalsontheWi125aredescribedinthetablebelow.
4.1 Power Signals
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