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ADRF6720-27 반도체 회로 부품 판매점

Wideband Quadrature Modulator



Analog Devices 로고
Analog Devices
ADRF6720-27 데이터시트, 핀배열, 회로
Data Sheet
Wideband Quadrature Modulator with
Integrated Fractional-N PLL and VCOs
ADRF6720-27
FEATURES
I/Q modulator with integrated fractional-N PLL
RF output frequency range: 400 MHz to 3000 MHz
Internal LO frequency range: 356.25 MHz to 2855 MHz
Output P1dB: 10.8 dBm at 2140 MHz
Output IP3: 31.1 dBm at 2140 MHz
Carrier feedthrough: −44.3 dBm at 2140 MHz
Sideband suppression: −40.8 dBc at 2140 MHz
Noise floor: −159.5 dBm/Hz at 2140 MHz
Baseband 1 dB modulation bandwidth: >1000 MHz
Baseband input bias level: 2.68 V
Power supply: 3.3 V/425 mA
Integrated RF tunable balun allowing single-ended RF output
Multicore integrated VCOs
HD3/IP3 optimization
Sideband suppression and carrier feedthrough optimization
High-side/low-side LO injection
Programmable via 3-wire serial port interface (SPI)
40-lead 6 mm × 6 mm LFCSP
APPLICATIONS
2G/3G/4G/LTE broadband communication systems
Microwave point-to-point radios
Satellite modems
Military/aerospace
Instrumentation
GENERAL DESCRIPTION
The ADRF6720-27 is a wideband quadrature modulator with an
integrated synthesizer ideally suited for 3G and 4G com-
munication systems. The ADRF6720-27 consists of a high
linearity broadband modulator, an integrated fractional-N
phase-locked loop (PLL), and four low phase noise multicore
voltage controlled oscillators (VCOs).
The ADRF6720-27 local oscillator (LO) signal can be generated
internally via the on-chip integer-N and fractional-N synthesizers,
or externally via a high frequency, low phase noise LO signal.
The internal integrated synthesizer enables LO coverage from
356.25 MHz to 2855 MHz using the multicore VCOs. In the
case of internal LO generation or external LO input, quadrature
signals are generated with a divide by 2 phase splitter. When the
ADRF6720-27 is operated with an external 1 × LO input, a
polyphase filter generates the quadrature inputs to the mixer.
The ADRF6720-27 offers digital programmability for carrier
feedthrough optimization, sideband suppression, HD3/IP3
optimization, and high-side or low-side LO injection.
The ADRF6720-27 is fabricated using an advanced silicon-
germanium BiCMOS process. It is available in a 40-lead,
RoHS-compliant, 6 mm × 6 mm LFCSP package with an
exposed pad. Performance is specified over the −40°C to +85°C
temperature range.
FUNCTIONAL BLOCK DIAGRAM
VPOSx
I+ 3
I– 4
40 35 30
V TO I
LO NULLING
DAC
26
22 17 11
PHASE
CORRECTION
6
ADRF6720-27
27 ENBL
24 RFOUT
Q– 8
Q+ 9
REFIN 39
CP 36
VTUNE 32
LO NULLING
DAC
V TO I
PLL
QUAD
DIVIDER
LOIN– 33
LOIN+ 34
POLYPHASE
FILTER
2 5 7 10 16 20 23 25 29 37 38
GND
PHASE
CORRECTION
18 LOOUT+
19 LOOUT–
LDO
2.5V
LDO
VCO
12 28
DECL1 DECL2
SERIAL
PORT
INTERFACE
31
DECL3
15 CS
14 SCLK
13 SDIO
Figure 1.
Rev. B
Document Feedback
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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.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2014–2015 Analog Devices, Inc. All rights reserved.
Technical Support
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ADRF6720-27 데이터시트, 핀배열, 회로
ADRF6720-27* Product Page Quick Links
Last Content Update: 11/01/2016
Comparable Parts
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Evaluation Kits
• ADRF6720-27 Evaluation Board
Documentation
Data Sheet
• ADRF6720-27: Wideband Quadrature Modulator with
Integrated Fractional-N PLL and VCOs
User Guides
• UG-742: Evaluating the ADRF6720-27 Wideband
Quadrature Modulator with Integrated Fractional-N PLL
and VCOs
Tools and Simulations
• ADRF6720-27 S-Parameters
Design Resources
• ADRF6720-27 Material Declaration
• PCN-PDN Information
• Quality And Reliability
• Symbols and Footprints
Discussions
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* This page was dynamically generated by Analog Devices, Inc. and inserted into this data sheet. Note: Dynamic changes to
the content on this page does not constitute a change to the revision number of the product data sheet. This content may be
frequently modified.




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Wideband Quadrature Modulator - Analog Devices