ADF4218LBRU-REEL | |
|---|---|
| Manufacturer Part Number | ADF4218LBRU-REEL |
| Description | IC PLL FREQ SYNTHESIZER 20-TSSOP |
| Manufacturer | Analog Devices Inc |
| Type | Clock/Frequency Synthesizer (RF/IF) |
| ADF4218LBRU-REEL datasheets |
|
Availability: In stock
International delivery:
Warranty: 60 days
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Specifications of ADF4218LBRU-REEL | |||
|---|---|---|---|
| Rohs Status | RoHS non-compliant | Pll | Yes |
| Input | CMOS | Output | Clock |
| Number Of Circuits | 1 | Ratio - Input:output | 3:1 |
| Differential - Input:output | Yes/No | Frequency - Max | 3GHz |
| Divider/multiplier | Yes/No | Voltage - Supply | 2.6 V ~ 3.3 V |
| Operating Temperature | -40°C ~ 85°C | Mounting Type | Surface Mount |
| Package / Case | 20-TSSOP | Frequency-max | 3GHz |
PrevNext
a
FEATURES
Total I
: 7.1 mA
DD
Bandwidth/RF 3.0 GHz
ADF4217L/ADF4218L, IF 1.1 GHz
ADF4219L, IF 1.0 GHz
2.6 V to 3.3 V Power Supply
1.8 V Logic Compatibility
Separate V
Allows Extended Tuning Voltage
P
Selectable Dual Modulus Prescaler
Selectable Charge Pump Currents
Charge Pump Current Matching of 1%
3-Wire Serial Interface
Power-Down Mode
APPLICATIONS
Wireless Handsets (GSM, PCS, DCS, CDMA, WCDMA)
Base Stations for Wireless Radio (GSM, PCS, DCS, WCDMA)
Wireless LANs
Communications Test Equipment
Cable TV Tuners (CATV)
IF
A
IN
IF
B
IN
ADF4217L
ADF4218L
ONLY
REF
BUFFER
IN
CLOCK
DATA
LE
RF
A
IN
RF
B
IN
FEATURES IN ( ) REFER TO ADF4219L
NC = NO CONNECT
REV. C
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. 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 companies.
ADF4217L/ADF4218L/ADF4219L
GENERAL DESCRIPTION
The ADF4217L/ADF4218L/ADF4219L are low power dual
frequency synthesizers that can be used to implement local
oscillators in the up-conversion and down-conversion sections
of wireless receivers and transmitters. They can provide the LO
for both the RF and IF sections. 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 and B 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 fre-
quencies at the PFD input. A complete PLL (phase-locked
loop) can be implemented if the synthesizers are used with an
external loop filter and VCOs (voltage controlled oscillators).
Control of all the on-chip registers is via a simple 3-wire interface
with 1.8 V compatibility. The devices operate with a power supply
ranging from 2.6 V to 3.3 V and can be powered down when
not in use.
FUNCTIONAL BLOCK DIAGRAM
ADF4219L ONLY
V
1
V
2
V
NC
DD
DD
N = BP + A
11(13)-BIT IF
B COUNTER
IF
PRESCALER
6(5)-BIT IF
A COUNTER
14(15)-BIT IF
R COUNTER
22-BIT
DATA
SDOUT
REGISTER
14(15)-BIT RF
R COUNTER
N = BP + A
11(13)-BIT RF
B COUNTER
RF
PRESCALER
6(5)-BIT RF
A COUNTER
DGND
RF
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Dual Low Power
Frequency Synthesizers
1
V
2
P
P
ADF4217L/
ADF4218L/
PHASE
ADF4219L
COMPARATOR
CHARGE
CP
IF
PUMP
IF
LOCK
DETECT
OUTPUT
MUXOUT
MUX
RF
LOCK
DETECT
CHARGE
CP
RF
PUMP
PHASE
COMPARATOR
AGND
DGND
AGND
RF
IF
IF
© 2003 Analog Devices, Inc. All rights reserved.
www.analog.com
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ADF4218LBRU-REEL Summary of contents |
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