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參數(shù)資料
| 型號： | ADF4157BRUZ-RL71 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | High Resolution 6 GHz Fractional-N Frequency Synthesizer |
| 中文描述： | 高分辨率6 GHz的分數(shù)N頻率合成器 |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 320K |
| 代理商： | ADF4157BRUZ-RL71 |
High Resolution 6 GHz Fractional-N
Frequency Synthesizer
ADF4157
FEATURES
Rev. 0
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. Specifications subject to change without notice. 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
Fax: 781.461.3113
2007 Analog Devices, Inc. All rights reserved.
www.analog.com
RF bandwidth to 6 GHz
25-bit fixed modulus allows subhertz frequency resolution
2.7 V to 3.3 V power supply
Separate V
P
allows extended tuning voltage
Programmable charge pump currents
3-wire serial interface
Digital lock detect
Power-down mode
Pin compatible with the following frequency synthesizers:
ADF4110/ADF4111/ADF4112/ADF4113/
ADF4106/ADF4153/ADF4154/ADF4156
Cycle slip reduction for faster lock times
APPLICATIONS
Satellite communications terminals, radar equipment
Instrumentation equipment
Personal mobile radio (PMR)
Base stations for mobile radio
Wireless handsets
GENERAL DESCRIPTION
The ADF4157 is a 6 GHz fractional-N frequency synthesizer
with a 25-bit fixed modulus, allowing subhertz frequency
resolution at 6 GHz. 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 and FRAC registers define an overall
N divider, N = INT + (FRAC/2
25
). The ADF4157 features cycle
slip reduction circuitry, which leads to faster lock times without
the need for modifications to the loop filter.
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
N COUNTER
CP
RFCP3 RFCP2
RFCP4
RFCP1
REFERENCE
DATA
LE
32-BIT
DATA
REGISTER
CLK
REF
IN
AV
DD
AGND
V
DD
V
DD
DGND
R
DIV
SD
OUT
N
DIV
DGND
CPGND
DV
DD
V
P
CE
R
SET
RF
IN
A
RF
IN
B
OUTPUT
MUX
MUXOUT
–
+
HIGH Z
PHASE
FREQUENCY
DETECTOR
ADF4157
THIRD ORDER
FRACTIONAL
INTERPOLATOR
MODULUS
2
FRACTION
REG
INTEGER
REG
CURRENT
SETTING
×2
DOUBLER
4-BIT
R COUNTER
CHARGE
PUMP
CSR
÷2
DIVIDER
0
Figure 1.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADF4158 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Direct Modulation/Waveform Generating, 6.1 GHz Fractional-N Frequency Synthesizer |
| ADF4158CCPZ | 功能描述:IC FRACTION N FREQ SYNT 24LFCSP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:1,000 系列:Precision Edge® 類型:時鐘/頻率合成器 PLL:無 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/無 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤，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 |
| ADF4158CCPZ | 制造商:Analog Devices 功能描述:PLL, FREQUENCY SYNTHESIZER, 6.1GHZ, LFCS |
| ADF4158CCPZ-RL7 | 功能描述:IC FRACTION N FREQ SYNT 24LFCSP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:1,000 系列:Precision Edge® 類型:時鐘/頻率合成器 PLL:無 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/無 電源電壓:2.375 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-VFQFN 裸露焊盤，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 |
| ADF4158WCCPZ | 功能描述:IC FRAC-N FREQ SYNTH 24LFCSP 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態(tài):在售 類型:分數(shù) N 合成器（RF） PLL:是 輸入:CMOS，TTL 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:2:1 差分 - 輸入:輸出:是/無 頻率 - 最大值:6.1GHz 分頻器/倍頻器:是/是 電壓 - 電源:2.7 V ~ 3.3 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-WFQFN 裸露焊盤 供應(yīng)商器件封裝:24-LFCSP-WQ（4x4） 標準包裝:1 |
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