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參數資料
| 型號： | EVAL-ADF4154EBZ1 |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR ADF4154EB1 |
| 標準包裝： | 1 |
| 主要目的： | 計時，頻率合成器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | ADF4154 |
| 主要屬性： | 單路分數-N PLL |
| 次要屬性： | 19.2MHz PFD 圖形用戶界面 |
| 已供物品： | 板，線纜，軟件 |
| 相關產品： | ADF4154BCPZ-ND - IC FRACTION-N FREQ SYNTH 20LFCSP ADF4154BRU-REEL7-ND - IC FRACTION-N FREQ SYNTH 16TSSOP ADF4154BCPZ-RL7-ND - IC FRACTION-N FREQ SYNTH 20LFCSP ADF4154BRUZ-RL7TR-ND - IC FRACTION-N FREQ SYNTH 16TSSOP ADF4154BRUZ-RL-ND - IC FRACTION-N FREQ SYNTH 16TSSOP ADF4154BRU-REEL-ND - IC FRACTION-N FREQ SYNTH 16TSSOP ADF4154BCPZ-RL-ND - IC FRACTION-N FREQ SYNTH 20LFCSP ADF4154BRUZ-ND - IC FRAC-N FREQ SYNTH 16-TSSOP ADF4154BRU-ND - IC FRAC-N FREQ SYNTH 16-TSSOP |
Fractional-N Frequency Synthesizer
Data Sheet
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorother
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2004–2012 Analog Devices, Inc. All rights reserved.
FEATURES
RF bandwidth to 4 GHz
2.7 V to 3.3 V power supply
Separate VP allows extended tuning voltage
Programmable dual-modulus prescaler 4/5, 8/9
Programmable charge pump currents
3-wire serial interface
Digital lock detect
Power-down mode
Pin compatible with the ADF4110/ADF4111/
Programmable modulus on fractional-N synthesizer
Trade-off noise vs. spurious performance
Fast-lock mode with built-in timer
Loop filter design possible with ADIsimPLL
APPLICATIONS
Base stations for mobile radio (WiMAX, PHS, GSM, PCS, DCS,
CDMA, PMR, W-CDMA, supercell 3G)
Wireless handsets (PMR, GSM, PCS, DCS, CDMA, WCDMA)
CATV equipment
Wireless LANs
Communications test equipment
GENERAL DESCRIPTION
The ADF4154 is a fractional-N frequency synthesizer that
implements local oscillators in the up conversion and down
conversion sections of wireless receivers and transmitters. It
consists of a low noise digital phase frequency detector (PFD),
a precision charge pump, and a programmable reference divider.
There is a Σ-Δ based fractional interpolator to allow programmable
fractional-N division. The INT, FRAC, and MOD registers define
an overall N-divider (N = (INT + (FRAC/MOD))). In addition,
the 4-bit reference counter (R-counter) allows selectable REFIN
frequencies at the PFD input. A complete phase-locked loop (PLL)
can be implemented if the synthesizer is used with an external
loop filter and a voltage-controlled oscillator (VCO).
A key feature of the ADF4154 is the fast-lock mode with a built-
in timer. The user can program a predetermined countdown
time value so that the PLL remains in wide bandwidth mode,
instead of the user having to control this time externally.
Control of all on-chip registers is via a simple 3-wire interface.
The device operates with a power supply ranging from 2.7 V to
3.3 V and can be powered down when not in use.
FUNCTIONAL BLOCK DIAGRAM
LOCK
DETECT
FAST-LOCK
SWITCH
N COUNTER
CP
RFCP3 RFCP2 RFCP1
REFERENCE
DATA
LE
24-BIT
DATA
REGISTER
CLOCK
REFIN
AVDD
AGND
VDD
DGND
RDIV
NDIV
DGND
CPGND
DVDD VP SDVDD
RSET
RFINA
RFINB
OUTPUT
MUX
MUXOUT
–
+
HIGH Z
PHASE
FREQUENCY
DETECTOR
ADF4154
THIRD ORDER
FRACTIONAL
INTERPOLATOR
MODULUS
REG
FRACTION
REG
INTEGER REG
CURRENT
SETTING
×2
DOUBLER
4-BIT
R COUNTER
CHARGE
PUMP
04833-
001
Figure 1.
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相關代理商/技術參數 |
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| EVAL-ADF4156EBZ1 | 制造商:Analog Devices 功能描述:EVAL BOARD - Bulk |
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| EVAL-ADF4193EBZ1 | 功能描述:BOARD EVALUATION EB1 FOR ADF4193 RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:- 標準包裝:1 系列:- 主要目的:電信，線路接口單元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要屬性:T1/J1/E1 LIU 次要屬性:- 已供物品:板，電源，線纜，CD 其它名稱:82EBV2081 |
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