參數(shù)資料
型號(hào): ADF4252BCPZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 1/28頁(yè)
文件大?。?/td> 0K
描述: IC PLL FREQ SYNTHESIZER 24-LFCSP
標(biāo)準(zhǔn)包裝: 1
類(lèi)型: 時(shí)鐘/頻率合成器(RF/IF),分?jǐn)?shù)-N,整數(shù)-N,
PLL:
輸入: CMOS,TTL
輸出: 時(shí)鐘
電路數(shù): 1
比率 - 輸入:輸出: 3:2
差分 - 輸入:輸出: 是/無(wú)
頻率 - 最大: 3GHz
除法器/乘法器: 是/無(wú)
電源電壓: 2.7 V ~ 3.3 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 24-VFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 24-LFCSP-VQ(4x4)
包裝: 托盤(pán)
產(chǎn)品目錄頁(yè)面: 551 (CN2011-ZH PDF)
配用: EVAL-ADF4252EBZ2-ND - BOARD EVAL ADF4252 NO VCO/FILTER
REV. B
a
ADF4252
Dual Fractional-N/Integer-N
Frequency Synthesizer
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
2003 Analog Devices, Inc. All rights reserved.
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties that
may result from its use. No license is granted by implication or otherwise
under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
FEATURES
3.0 GHz Fractional-N/1.2 GHz Integer-N
2.7 V to 3.3 V Power Supply
Separate VP Allows Extended Tuning Voltage to 5 V
Programmable Dual Modulus Prescaler
RF: 4/5, 8/9
IF: 8/9, 16/17, 32/33, 64/65
Programmable Charge Pump Currents
3-Wire Serial Interface
Digital Lock Detect
Power-Down Mode
Programmable Modulus on Fractional-N Synthesizer
Trade-Off Noise versus Spurious Performance
APPLICATIONS
Base Stations for Mobile Radio (GSM, PCS, DCS,
CDMA, WCDMA)
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANs
Communications Test Equipment
CATV Equipment
FUNCTIONAL BLOCK DIAGRAM
ADF4252
2
DOUBLER
OUTPUT
MUX
4-BIT R
COUNTER
PHASE
FREQUENCY
DETECTOR
LOCK
DETECT
CHARGE
PUMP
REFERENCE
REFIN
REFOUT
VDD1
VDD2
VDD3
DVDD
VP1
VP2
RSET
24-BIT
DATA
REGISTER
CLK
DATA
LE
RFINA
RFINB
CPRF
CPIF
2
DOUBLER
15-BIT R
COUNTER
CHARGE
PUMP
PHASE
FREQUENCY
DETECTOR
MUXOUT
AGND1 AGND2
DGND
CPGND1
CPGND2
IFINB
IFINA
FRACTIONAL N
RF DIVIDER
INTEGER N
IF DIVIDER
GENERAL DESCRIPTION
The ADF4252 is a dual fractional-N/integer-N frequency
synthesizer that can be used to implement local oscillators
(LO) in the upconversion and downconversion sections of
wireless receivers and transmitters. Both the RF and IF syn-
thesizers consist of a low noise digital PFD (phase frequency
detector), a precision charge pump, and a programmable refer-
ence divider. The RF synthesizer has a - -based fractional
interpolator that allows programmable fractional-N division.
The IF synthesizer has programmable integer-N counters. A
complete PLL (phase-locked loop) can be implemented if the
synthesizer is used with an external loop filter and VCO (volt-
age controlled oscillator).
Control of all the on-chip registers is via a simple 3-wire inter-
face. The devices operate with a power supply ranging from
2.7 V to 3.3 V and can be powered down when not in use.
相關(guān)PDF資料
PDF描述
MS27473E24F35PC CONN PLUG 128POS STRAIGHT W/PINS
ADG3247BCPZ IC SW BUS 2.5-3.3V 16BIT 40LFCSP
MS27473E24F35PB CONN PLUG 128POS STRAIGHT W/PINS
ADG3247BRU-REEL7 IC SW BUS 2.5/3.3V 16BIT 38TSSOP
MS3106E32-76P CONN PLUG 19POS STRAIGHT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADF4252BCPZ-R7 功能描述:IC PLL FREQ SYNTHESIZER 24LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:Precision Edge® 類(lèi)型:時(shí)鐘/頻率合成器 PLL:無(wú) 輸入:CML,PECL 輸出:CML 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無(wú)/無(wú) 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤(pán),16-MLF? 供應(yīng)商設(shè)備封裝:16-MLF?(3x3) 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND
ADF4252BCPZ-RL 功能描述:IC PLL FREQ SYNTHESIZER 24LFCSP RoHS:是 類(lèi)別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器,PLL,頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:Precision Edge® 類(lèi)型:時(shí)鐘/頻率合成器 PLL:無(wú) 輸入:CML,PECL 輸出:CML 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/是 頻率 - 最大:10.7GHz 除法器/乘法器:無(wú)/無(wú) 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤(pán),16-MLF? 供應(yīng)商設(shè)備封裝:16-MLF?(3x3) 包裝:帶卷 (TR) 其它名稱:SY58052UMGTRSY58052UMGTR-ND
ADF4350 制造商:AD 制造商全稱:Analog Devices 功能描述:Wideband Synthesizer with Integrated VCO
ADF4350ABCPZ 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTEGRATED VCO - Trays
ADF4350ABCPZ-RL7 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTE 制造商:Analog Devices 功能描述:F-N WITH HIGH PERFORMANCE INTEGRATED VCO - Tape and Reel