DatasheetsPDF.com

Vector Modulator. AD8340 Datasheet

DatasheetsPDF.com

Vector Modulator. AD8340 Datasheet






AD8340 Modulator. Datasheet pdf. Equivalent




AD8340 Modulator. Datasheet pdf. Equivalent





Part

AD8340

Description

RF Vector Modulator



Feature


Data Sheet FEATURES Cartesian amplitude and phase modulation 700 MHz to 1.0 GHz frequency range Continuous magnitude c ontrol of −2 dB to −32 dB Continuou s phase control of 0° to 360° Output third-order intercept 24 dBm Output 1 d B compression point 11 dBm Output noise floor −149 dBm/Hz at full gain Adjus table modulation bandwidth up to 230 MH z Fast output power disabl.
Manufacture

Analog Devices

Datasheet
Download AD8340 Datasheet


Analog Devices AD8340

AD8340; e 4.75 V to 5.25 V single-supply voltage APPLICATIONS RF PA linearization/RF pr edistortion Amplitude and phase modulat ion Variable attenuators and phase shif ters CDMA2000, GSM/EDGE linear power am plifiers Smart antennas GENERAL DESCRIP TION The AD8340 vector modulator perfor ms arbitrary amplitude and phase modula tion of an RF signal. Because the RF si gnal path is linea.


Analog Devices AD8340

r, the original modulation is preserved. This part can be used as a general-pur pose RF modulator, a variable attenuato r/phase shifter, or a remodulator. The amplitude can be controlled from a maxi mum of −2 dB to less than −32 dB, a nd the phase can .


Analog Devices AD8340

.

Part

AD8340

Description

RF Vector Modulator



Feature


Data Sheet FEATURES Cartesian amplitude and phase modulation 700 MHz to 1.0 GHz frequency range Continuous magnitude c ontrol of −2 dB to −32 dB Continuou s phase control of 0° to 360° Output third-order intercept 24 dBm Output 1 d B compression point 11 dBm Output noise floor −149 dBm/Hz at full gain Adjus table modulation bandwidth up to 230 MH z Fast output power disabl.
Manufacture

Analog Devices

Datasheet
Download AD8340 Datasheet




 AD8340
Data Sheet
FEATURES
Cartesian amplitude and phase modulation
700 MHz to 1.0 GHz frequency range
Continuous magnitude control of −2 dB to −32 dB
Continuous phase control of 0° to 360°
Output third-order intercept 24 dBm
Output 1 dB compression point 11 dBm
Output noise floor −149 dBm/Hz at full gain
Adjustable modulation bandwidth up to 230 MHz
Fast output power disable
4.75 V to 5.25 V single-supply voltage
APPLICATIONS
RF PA linearization/RF predistortion
Amplitude and phase modulation
Variable attenuators and phase shifters
CDMA2000, GSM/EDGE linear power amplifiers
Smart antennas
GENERAL DESCRIPTION
The AD8340 vector modulator performs arbitrary amplitude
and phase modulation of an RF signal. Because the RF signal
path is linear, the original modulation is preserved. This part
can be used as a general-purpose RF modulator, a variable
attenuator/phase shifter, or a remodulator. The amplitude can
be controlled from a maximum of −2 dB to less than −32 dB,
and the phase can be shifted continuously over the entire 360°
range. For maximum gain, the AD8340 delivers an OP1dB
of 11 dBm, an OIP3 of 24 dBm, and an output noise floor of
−149 dBm/Hz, independent of phase. It operates over a fre-
quency range of 700 MHz to 1.0 GHz.
The baseband inputs in Cartesian I and Q format control the
amplitude and phase modulation imposed on the RF input
signal. Both I and Q inputs are dc-coupled with a ±500 mV
differential full-scale range. The maximum modulation band-
width is 230 MHz, which can be reduced by adding external
capacitors to limit the noise bandwidth on the control lines.
700 MHz to 1000 MHz
RF Vector Modulator
AD8340
FUNCTIONAL BLOCK DIAGRAM
VPRF
QBBP QBBM
VPS2
RFIP
RFIM
90°
RFOP
RFOM
CMOP
IBBP IBBM
Figure 1.
DSOP
Both the RF inputs and outputs can be used differentially or
single-ended and must be ac-coupled. The RF input and output
impedances are nominally 50 Ω over the operating frequency
range. The DSOP pin allows the output stage to be disabled
quickly to protect subsequent stages from overdrive. The
AD8340 operates off supply voltages from 4.75 V to 5.25 V
while consuming approximately 130 mA.
The AD8340 is fabricated using the Analog Devices, Inc.
proprietary, high performance 25 GHz SOI complementary
bipolar IC process. It is available in a 24-lead RoHS-compliant
LFCSP package and operates over a −40°C to +85°C tempera-
ture range. Evaluation boards are available.
Rev. C
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
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 ©2004–2014 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com




 AD8340
AD8340
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
Functional Block Diagram .............................................................. 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Typical Performance Characteristics ............................................. 6
Theory of Operation ...................................................................... 10
RF Quadrature Generator ......................................................... 10
I-Q Attenuators and Baseband Amplifiers.............................. 11
Output Amplifier........................................................................ 11
REVISION HISTORY
3/14—Rev. B to Rev. C
Added Exposed Pad Notation, Figure 2 and Table 3 ................... 5
Updated Outline Dimensions ....................................................... 20
Changes to Ordering Guide .......................................................... 20
8/07—Rev. A to Rev B
Replaced Pin Configuration and Function
Descriptions Section ........................................................................ 5
Changes to Figure 30...................................................................... 12
Changes to Figure 39...................................................................... 18
7/07—Rev. 0 to Rev. A
Replaced Pin Configuration and Function
Descriptions Section ........................................................................ 5
Changes to Ordering Guide .......................................................... 20
6/04—Revision 0: Initial Version
Data Sheet
Noise and Distortion.................................................................. 11
Gain and Phase Accuracy.......................................................... 11
RF Frequency Range .................................................................. 11
Applications Information .............................................................. 12
Using the AD8340 ...................................................................... 12
RF Input and Matching ............................................................. 12
RF Output and Matching .......................................................... 13
Driving the I-Q Baseband Controls......................................... 13
Interfacing to High Speed DACs.............................................. 14
CDMA2000 Application ........................................................... 14
Evaluation Board ............................................................................ 16
Schematic and Artwork............................................................. 18
Outline Dimensions ....................................................................... 20
Ordering Guide .......................................................................... 20
Rev. C | Page 2 of 20




 AD8340
Data Sheet
AD8340
SPECIFICATIONS
VS = 5 V, TA = 25°C, ZO = 50 Ω, f = 880 MHz, single-ended, ac-coupled source drive to RFIP through 5.6 nH series inductor, RFIM
ac-coupled through 5.6 nH series inductor to common, differential-to-single-ended conversion at output using 1:1 balun.
Table 1.
Parameter
OVERALL FUNCTION
Frequency Range
Maximum Gain
Minimum Gain
Gain Control Range
Phase Control Range
Gain Flatness
Group Delay Flatness
RF INPUT STAGE
Input Return Loss
CARTESIAN CONTROL INTERFACE (I and Q)
Gain Scaling
Modulation Bandwidth
Second Harmonic Distortion
Third Harmonic Distortion
Step Response
RF OUTPUT STAGE
Output Return Loss
f = 880 MHz
Gain
Output Noise Floor
Output IP3
ACPR
Output 1 dB Compression Point
POWER SUPPLY
Positive Supply Voltage
Total Supply Current
OUTPUT DISABLE
Disable Threshold
Maximum Attenuation
Enable Response Time
Disable Response Time
Conditions
Maximum gain setpoint for all phase setpoints
VBBI = VBBQ = 0 V
Relative to maximum gain
Over 30 dB control range
Over any 60 MHz bandwidth
Over any 60 MHz bandwidth
RFIM, RFIP (Pin 21 and Pin 22)
From RFIP to CMRF (with 5.6 nH series inductors)
IBBP, IBBM, QBBP, QBBM (Pin 16, Pin 15, Pin 3, Pin 4)
250 mV p-p sinusoidal baseband input single-ended
250 mV p-p, 1 MHz, sinusoidal baseband input differential
250 mV p-p, 1 MHz, sinusoidal baseband input differential
For gain setpoint from 0.1 to 0.9
(VBBP = 0.5 V, VBBM = 0.55 V to 0.95 V)
For gain setpoint from 0.9 to 0.1
(VBBP = 0.5 V, VBBM = 0.95 V to 0.55 V)
RFOP, RFOM (Pin 9 and Pin 10)
Measured through balun
Maximum gain setpoint
Maximum gain setpoint, no input
PIN = 0 dBm, frequency offset = 20 MHz
f1 = 880 MHz, f2 = 877.5 MHz, maximum gain setpoint
IS-95, single carrier, POUT = 0 dBm, maximum gain,
phase setpoint = 45°
Maximum gain
VPS2 (Pin 5, Pin 6, Pin 14); RFOP, RFOM (Pin 9 and Pin 10)
Includes load current
DSOP (Pin 13)
DSOP = 5 V
Delay following high-to-low transition until device
meets full specifications
Delay following low-to-high transition until device
produces full attenuation
Min Typ Max Unit
700
−2
−32
30
360
0.25
10
1000
MHz
dB
dB
dB
Degrees
dB
ps
20 dB
2 1/V
230 MHz
47 dBc
45 dBc
45 ns
47 ns
7.5 dB
−2
−149
−147
24
62
11
dB
dBm/Hz
dBm/Hz
dBm
dBc
dBm
4.75 5
110 130
5.25 V
150 mA
2.5 V
40 dB
15 ns
10 ns
Rev. C | Page 3 of 20



Recommended third-party AD8340 Datasheet






@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)