datasheetbank_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

ADF4117BRUZ1 View Datasheet(PDF) - Analog Devices

Part Name
Description
View to exact match
ADF4117BRUZ1
ADI
Analog Devices ADI
ADF4117BRUZ1 Datasheet PDF : 20 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
a
RF PLL Frequency Synthesizers
ADF4116/ADF4117/ADF4118
FEATURES
ADF4116: 550 MHz
ADF4117: 1.2 GHz
ADF4118: 3.0 GHz
2.7 V to 5.5 V Power Supply
Separate VP Allows Extended Tuning Voltage in 3 V
Systems
Selected Charge Pump Currents
Dual Modulus Prescaler
ADF4116: 8/9
ADF4117/ADF4118: 32/33
3-Wire Serial Interface
Digital Lock Detect
Power-Down Mode
Fast Lock Mode
APPLICATIONS
Base Stations for Wireless Radio (GSM, PCS, DCS,
CDMA, WCDMA)
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)
Wireless LANS
Communications Test Equipment
CATV Equipment
GENERAL DESCRIPTION
The ADF4116 family of frequency synthesizers can be used
to implement local oscillators in the up-conversion and down-
conversion sections of wireless receivers and transmitters. They
consist of a low-noise digital PFD (Phase Frequency Detector),
a precision charge pump, a programmable reference divider,
programmable A and B counters and a dual-modulus prescaler
(P/P+1). The A (5-bit) and B (13-bit) counters, in conjunction
with the dual modulus prescaler (P/P+1), implement an N
divider (N = BP+A). In addition, the 14-bit reference counter
(R Counter), allows selectable REFIN frequencies at the PFD
input. A complete PLL (Phase-Locked Loop) can be imple-
mented if the synthesizer is used with an external loop filter and
VCO (Voltage Controlled Oscillator).
Control of all the on-chip registers is via a simple 3-wire interface.
The devices operate with a power supply ranging from 2.7 V to
5.5 V and can be powered down when not in use.
FUNCTIONAL BLOCK DIAGRAM
AVDD
DVDD
ADF4116/ADF4117/ADF4118
VP
CPGND
REFERENCE
REFIN
CLK
DATA
LE
RFINA
RFINB
14-BIT
R COUNTER
14
R COUNTER
LATCH
21-BIT
INPUT REGISTER 19
FUNCTION
LATCH
SDOUT
FROM
FUNCTION LATCH
A, B COUNTER
LATCH
18
13
N = BP + A
PRESCALER
P/P +1
13-BIT
B COUNTER
LOAD
LOAD
5-BIT
A COUNTER
5
CE
AGND
DGND
PHASE
FREQUENCY
DETECTOR
CHARGE
PUMP
LOCK
DETECT
AVDD
SDOUT
MUX
HIGH Z
M3 M2 M1
FLO
SWITCH
CP
MUXOUT
FLO
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
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700 World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
© Analog Devices, Inc., 2000
 

Share Link: 

datasheetbank.com [ Privacy Policy ] [ Request Datasheet ] [ Contact Us ]