数据搜索系统,热门电子元器件搜索
  Chinese  ▼
ALLDATASHEETCN.COM

X  

ADF4251BCP-REEL7 数据表(PDF) 1 Page - Analog Devices

部件名 ADF4251BCP-REEL7
功能描述  Dual Fractional-N/Integer-N Frequency Synthesizer
Download  28 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADF4251BCP-REEL7 数据表(HTML) 1 Page - Analog Devices

  ADF4251BCP-REEL7 Datasheet HTML 1Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 2Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 3Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 4Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 5Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 6Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 7Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 8Page - Analog Devices ADF4251BCP-REEL7 Datasheet HTML 9Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 28 page
background image
REV. 0
ADF4251
Dual Fractional-N/Integer-N
Frequency Synthesizer
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.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
www.analog.com
Fax: 781/326-8703
© 2003 Analog Devices, Inc. All rights reserved.
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
Software and Hardware Power-Down
APPLICATIONS
Base Stations for Mobile Radio (GSM, PCS, DCS,
CDMA, WCDMA)
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA,
PHS)
Wireless LANs
Communications Test Equipment
CATV Equipment
FUNCTIONAL BLOCK DIAGRAM
ADF4251
2
DOUBLER
OUTPUT
MUX
4-BIT R
COUNTER
PHASE
FREQUENCY
DETECTOR
LOCK
DETECT
CHARGE
PUMP
REFERENCE
REFIN
VDD1
VDD2
VDD3
DVDD
VP1
VP2RSET
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
CE
FROM
REFIN
GENERAL DESCRIPTION
The ADF4251 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.


类似零件编号 - ADF4251BCP-REEL7

制造商部件名数据表功能描述
logo
Analog Devices
ADF4251 AD-ADF4251_15 Datasheet
440Kb / 28P
   Dual Fractional-N/Integer-N Frequency Synthesizer
REV. 0
More results

类似说明 - ADF4251BCP-REEL7

制造商部件名数据表功能描述
logo
Hynix Semiconductor
HM6F5201 HYNIX-HM6F5201 Datasheet
328Kb / 25P
   Dual Fractional-N / Integer-N Frequency Synthesizer
logo
Analog Devices
ADF4251 AD-ADF4251_15 Datasheet
440Kb / 28P
   Dual Fractional-N/Integer-N Frequency Synthesizer
REV. 0
ADF4252 AD-ADF4252 Datasheet
476Kb / 28P
   Dual Fractional-N/Integer-N Frequency Synthesizer
REV. B
ADF4252 AD-ADF4252_15 Datasheet
497Kb / 28P
   Dual Fractional-N/Integer-N Frequency Synthesizer
REV. B
ADF4252 AD-ADF4252_V01 Datasheet
507Kb / 30P
   Dual Fractional-N/Integer-N Frequency Synthesizer
Rev. E
ADF4151 AD-ADF4151 Datasheet
462Kb / 28P
   Fractional-N/Integer-N PLL Synthesizer
REV. B
ADF4150BCPZ AD-ADF4150BCPZ Datasheet
486Kb / 28P
   Fractional-N/Integer-N PLL Synthesizer
REV. 0
ADF4155 AD-ADF4155 Datasheet
530Kb / 32P
   Integer-N/Fractional-N PLL Synthesizer
ADF41513 AD-ADF41513 Datasheet
565Kb / 33P
   Integer N/Fractional-N, PLL Synthesizer
ADF4150 AD-ADF4150 Datasheet
818Kb / 28P
   Fractional-N/Integer-N PLL Synthesizer
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28


数据表 下载

Go To PDF Page


链接网址




隐私政策
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ] 

关于 Alldatasheet   |   广告服务   |   联系我们   |   隐私政策   |   链接交换   |   制造商名单
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com