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參數(shù)資料
| 型號(hào)： | ADF4154 |
| 廠商： | Analog Devices, Inc. |
| 元件分類(lèi)： | XO, clock |
| 英文描述： | Fractional-N Frequency Synthesizer |
| 中文描述： | 分?jǐn)?shù)N頻率合成器 |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大?。?/td> | 470K |
| 代理商： | ADF4154 |
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Fractional-N Frequency Synthesizer
ADF4154
FEATURES
RF bandwidth 500 MHz to 4 GHz
2.7 V to 3.3 V power supply
Separate V
P
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/
ADF4112/ADF4113, ADF4106 and ADF4153
Programmable modulus on fractional-N synthesizer
Trade-off noise versus spurious performance
Fast-lock mode with built-in timer
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: 781.326.8703
APPLICATIONS CATV equipment
Base stations for mobile radio (GSM, PCS, DCS,
CDMA, WCDMA)
Wireless handsets (GSM, PCS, DCS, CDMA, WCDMA)
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 program-
mable fractional-N division. The INT, FRAC, and MOD regis-
ters define an overall N divider (N = (INT + (FRAC/MOD))).
In addition, the 4-bit reference counter (R counter) allows
selectable REF
IN
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 count-down
time value so that the PLL will remain in wide bandwidth mode,
instead of 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
AV
DD
DV
DD
V
P
SDV
DD
LOCK
DETECT
FAST-LOCK
SWITCH
N COUNTER
CP
RFCP3 RFCP2 RFCP1
REFERENCE
DATA
LE
24-BIT
DATA
REGISTER
CLOCK
REF
IN
AGND
V
DD
DGND
V
DD
R
DIV
N
DIV
DGND
CPGND
R
SET
RF
IN
A
RF
IN
B
OUTPUT
MUX
MUXOUT
–
+
HIGH Z
PHASE
FREQUENCY
DETECTOR
ADF4154
THIRD ORDER
FRACTIONAL
INTERPOLATOR
MODULUS
REG
FRACTION
REG
INTEGER REG
P = 4/5 OR 8/9
B = 9 BITS; A = 3 BITS
CURRENT
SETTING
×
2
DOUBLER
4-BIT
R COUNTER
CHARGE
PUMP
0
Figure 1.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADF4154BCP | Fractional-N Frequency Synthesizer |
| ADF4154BCP-REEL | Fractional-N Frequency Synthesizer |
| ADF4154BCP-REEL7 | Fractional-N Frequency Synthesizer |
| ADF4154BRU | Fractional-N Frequency Synthesizer |
| ADF4154BRU-REEL | Fractional-N Frequency Synthesizer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADF4154BCP | 制造商:Analog Devices 功能描述:PLL Frequency Synthesizer Single 20-Pin LFCSP EP 制造商:Rochester Electronics LLC 功能描述:FRACTIONAL-N SYNTH. W/FASTLOCK COUNTER - Bulk |
| ADF4154BCP-REEL | 制造商:Analog Devices 功能描述:PLL Frequency Synthesizer Single 20-Pin LFCSP EP T/R 制造商:Rochester Electronics LLC 功能描述:FRACTIONAL-N SYNTH. W/FASTLOCK COUNTER - Tape and Reel |
| ADF4154BCP-REEL7 | 制造商:Analog Devices 功能描述:PLL Frequency Synthesizer Single 20-Pin LFCSP EP T/R |
| ADF4154BCPZ | 功能描述:IC FRACTION-N FREQ SYNTH 20LFCSP 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(chēng):SY58052UMGTRSY58052UMGTR-ND |
| ADF4154BCPZ-RL | 功能描述:IC FRACTION-N FREQ SYNTH 20LFCSP 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(chēng):SY58052UMGTRSY58052UMGTR-ND |
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