Fractional-N Frequency Synthesizer
Data Sheet
ADF4153A
FEATURES
GENERAL DESCRIPTION
RF bandwidth to 4 GHz
2.7 V to 3.3 V power supply
The ADF4153A is a fractional-N frequency synthesizer
that implements local oscillators in the upconversion and
downconversion sections of wireless receivers and transmit-
ters. It consists of a low noise digital phase frequency detector
(PFD), a precision charge pump, and a programmable reference
divider. A sigma-delta (Σ-Δ) based fractional interpolator
allows 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).
Separate VP allows extended tuning voltage
Programmable fractional modulus
Programmable charge pump current
3-wire serial interface
Analog and digital lock detect
Power-down mode
Pin-compatible with ADF4106, ADF4110/ADF4111/
ADF4112/ADF4113, and ADF4153
Consistent RF output phase
Loop filter design possible with ADIsimPLL
APPLICATIONS
A simple 3-wire interface controls all on-chip registers.
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.
CATV equipment
Base stations for mobile radio (GSM, PCS, DCS, WiMAX,
SuperCell 3G, CDMA, W-CDMA)
Wireless handsets (GSM, PCS, DCS, CDMA, W-CDMA)
Wireless LANs, PMR
Communications test equipment
FUNCTIONAL BLOCK DIAGRAM
AV
DV
V
SDV
R
SET
DD
DD
P
DD
ADF4153A
REFERENCE
4-BIT
R COUNTER
×2
REF
IN
DOUBLER
+
PHASE
CP
CHARGE
PUMP
FREQUENCY
DETECTOR
V
DD
–
HIGH-Z
DGND
LOCK
DETECT
CURRENT
SETTING
OUTPUT
MUX
V
MUXOUT
DD
R
N
DIV
DIV
RFCP3 RFCP2 RFCP1
RF
RF
A
B
IN
N-COUNTER
IN
THIRD ORDER
FRACTIONAL
INTERPOLATOR
CLK
DATA
LE
FRACTION
REG
MODULUS
REG
INTEGER
REG
24-BIT
DATA
REGISTER
AGND
DGND
CPGND
Figure 1.
Rev. A
Document Feedback
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
rightsof third parties that may result fromits 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 andregisteredtrademarks 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 ©2012–2013 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com
5秒后页面跳转
全球首块英伟达H200交付 黄仁勋“送货上门”
常用8脚开关电源芯片型号大全
74HC04芯片引脚图及功能、应用电路图讲解
CR6842芯片参数、引脚配置、应用电路图详解
微信公众号
抖音公众号
浙公网安备 33010502006866号 浙ICP备10014259号-119
营业执照ICP证
数据手册
如果您发现信息不准确，
