Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

ADL5390 Datasheet(PDF) 11 Page - Analog Devices

No. de pieza ADL5390
Descripción Electrónicos  RF/IF Vector Multiplier
Download  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

ADL5390 Datasheet(HTML) 11 Page - Analog Devices

Back Button ADL5390 Datasheet HTML 7Page - Analog Devices ADL5390 Datasheet HTML 8Page - Analog Devices ADL5390 Datasheet HTML 9Page - Analog Devices ADL5390 Datasheet HTML 10Page - Analog Devices ADL5390 Datasheet HTML 11Page - Analog Devices ADL5390 Datasheet HTML 12Page - Analog Devices ADL5390 Datasheet HTML 13Page - Analog Devices ADL5390 Datasheet HTML 14Page - Analog Devices ADL5390 Datasheet HTML 15Page - Analog Devices Next Button
Zoom Inzoom in Zoom Outzoom out
 11 / 24 page
background image
ADL5390
Rev. 0 | Page 11 of 24
GENERAL STRUCTURE
THEORY OF OPERATION
The simplified block diagram given in Figure 26 shows a
matched pair of variable gain channels whose outputs are
summed and presented to the final output. The RF/IF signals
propagate from the left to the right, while the baseband gain
controls are placed above and below. The proprietary linear-
responding variable attenuators offer excellent linearity, low
noise, and greater immunity from mismatches than other
commonly used methods.
Since the two independent RF/IF inputs can be combined in
arbitrary proportions, the overall function can be termed
“vector multiplication” as expressed by
VOUT = VIRF × (VIBB/VO) + VQRF × (VQBB/VO)
where:
VIRF and VQRF are the RF/IF input vectors.
VIBB and VQBB are the baseband input scalars.
VO is the built-in normalization factor, which is designed to be
0.285 V (1/3.5 V).
The overall voltage gain, in linear terms, of the I and Q channels
is proportional to its control voltage and scaled by the normali-
zation factor, i.e., a full-scale gain of 1.75 (5 dB) for VI (Q)BB of
500 mV. A full-scale voltage gain of 1.75 defines a gain setpoint
of 1.0.
Due to its versatile functional form and wide signal dynamic
range, the ADL5390 can form the core of a variety of useful
functions such as quadrature modulators, gain and phase ad-
justers, and multiplexers. At maximum gain on one channel, the
output 1 dB compression point and noise floor referenced to
50 Ω are 11 dBm and −148 dBm/Hz, respectively. The broad
frequency response of the RF/IF and gain control ports allows
the ADL5390 to be used in a variety of applications at different
frequencies. The bandwidth for the RF/IF signal path extends
from approximately 20 MHz to beyond 2.4 GHz, while the gain
controls signals allow for modulation rates greater than 200 MHz.
Matching between the two gain channels is ensured by careful
layout and design. Since they are monolithic and arranged
symmetrically on the die, thermal and process gradients are
minimized. Typical gain and phase mismatch at maximum gain
are <0.5 dB and <0.5°.
LINEAR
ATTENUATOR
LINEAR
ATTENUATOR
I-V
VQBB
Q CHANNEL
BASEBAND INPUT
VIRF,
I CHANNEL
SINGLE-ENDED
OR DIFFERENTIAL
VIBB
OUTPUT
DISABLE
SINGLE-ENDED
OR DIFFERENTIAL
50
Ω OUTPUT
VQRF,
Q CHANNEL
SINGLE-ENDED
OR DIFFERENTIAL
I CHANNEL
BASEBAND INPUT
V-I
V-I
Figure 26. Simplified Architecture of the ADL5390
NOISE AND DISTORTION
The signal path for a particular channel of the ADL5390 con-
sists basically of a preamplifier followed by a variable attenuator
and then an output driver. Each subblock contributes some level
of noise and distortion to the desired signal. As the channel gain
is varied, these relative contributions change. The overall effect
is a dependence of output noise floor and output distortion
levels on the gain setpoint.
For the ADL5390, the distortion is always determined by the
preamplifier. At the highest gain setpoint, the signal capacity, as
described by the 1 dB compression point (P1dB) and the third-
order intercept (OIP3), are at the highest levels. As the gain is
reduced, the P1dB and OIP3 are reduced in exact proportion.
At the higher gain setpoints, the output noise is dominated by
the preamplifier as well. At lower gains, the contribution from
the preamplifier is correspondingly reduced and eventually a
noise floor, set by the output driver, is reached. As Figure 27
illustrates, the overall dynamic range defined as a ratio of OIP3
to output noise floor remains constant for the higher gain
setpoints. At some gain level, the noise floor levels off and the
dynamic range degrades commensurate with the gain reduction.
175
170
165
160
155
150
145
140
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
GAIN SETPOINT
DYNAMIC RANGE = OIP3 – (OUTPUT NOISE
FLOOR (NO CARRIER))
Figure 27. Dynamic Range Variation with Gain Setpoint


Número de pieza similar - ADL5390

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Analog Devices
ADL5390 AD-ADL5390 Datasheet
2Mb / 20P
   300 MHz to 1000 MHz Quadrature Modulator
REV. 0
ADL5390 AD-ADL5390 Datasheet
2Mb / 32P
   400 MHz to 6 GHz Broadband Quadrature Modulator
REV. 0
ADL5390 AD-ADL5390 Datasheet
681Kb / 23P
   RF/IF Vector Multiplier
Rev. A
ADL5390-EVALZ AD-ADL5390-EVALZ Datasheet
681Kb / 23P
   RF/IF Vector Multiplier
Rev. A
ADL5390ACPZ-REEL7 AD-ADL5390ACPZ-REEL7 Datasheet
681Kb / 23P
   RF/IF Vector Multiplier
Rev. A
More results

Descripción similar - ADL5390

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Analog Devices
ADL5390 AD-ADL5390_15 Datasheet
733Kb / 24P
   RF/IF Vector Multiplier
REV. 0
ADL5390 AD-ADL5390_V01 Datasheet
681Kb / 23P
   RF/IF Vector Multiplier
Rev. A
logo
Infineon Technologies A...
PMB2208 INFINEON-PMB2208 Datasheet
766Kb / 27P
   Mixer and IF Vector Modulator
V1.2 August 1999
logo
TEKTRONIX, INC.
TSG4100A TEKTRONIX-TSG4100A Datasheet
1Mb / 24P
   RF Vector Signal Generators
logo
National Instruments Co...
PXIE-5672 NI-PXIE-5672 Datasheet
824Kb / 4P
   2.7 GHz RF Vector Signal Generator
logo
Keysight Technologies
N9923A KEYSIGHT-N9923A Datasheet
2Mb / 18P
   N9923A FieldFox RF Vector Network Analyzer
logo
Zarlink Semiconductor I...
SL610 ZARLINK-SL610 Datasheet
344Kb / 7P
   RF/IF AMPLIFIER
logo
Fairchild Semiconductor
UA703 FAIRCHILD-UA703 Datasheet
145Kb / 3P
   RF-IF AMPLIFIER
logo
General Electric Compan...
SL1610 GEC-SL1610 Datasheet
269Kb / 3P
   RF/IF AMPLIFIERS
logo
Analog Devices
AD8340 AD-AD8340 Datasheet
536Kb / 20P
   700 MHz to 1000 MHz RF Vector Modulator
REV. 0
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com