adl5336 Analog Devices, Inc., adl5336 Datasheet
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adl5336
Manufacturer Part Number
adl5336
Description
Cascadable If Vgas With Programmable Rms Detectors
Manufacturer
Analog Devices, Inc.
Datasheet
1.ADL5336.pdf
(32 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
adl5336ACPZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
FEATURES
Pair of VGAs with rms AGC detectors
VGA and AGC modes of operation
Continuous gain control range: 48 dB
Noise figure (NF) = 6.8 dB at maximum gain
IMD3 > 62 dBc for 1.0 V p-p composite output
Differential input and output
Multiplexed inputs for VGA2
Programmable detector AGC setpoints
Programmable VGA maximum gain
Power-down feature
Single 5 V supply operation
APPLICATIONS
Point-to-multipoint radios
Instrumentation
Medical
GENERAL DESCRIPTION
The
(VGAs) designed for cascaded IF applications. The amplifiers
have linear-in-dB gain control and operate from low frequencies to
1 GHz. Their excellent gain conformance over the control range
and flatness over frequency are due to Analog Devices, Inc.,
patented X-AMP® architecture, an innovative technique for
implementing high performance variable gain control.
Each VGA has 24 dB of gain control range. Their maximum gain
can be independently programmable over a 6 dB range via the
SPI. The VGAs can be cascaded to provide a total range of 48 dB.
When connected to a 50 Ω source through a 1:4 balun, the gain
is 6 dB higher. The second VGA has an SPI programmable input
switch that selects one of two external inputs.
Rev. A
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.
Trademarks and registered trademarks are the property of their respective owners.
ADL5336
consists of a pair of variable gain amplifiers
Programmable RMS Detectors
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
When driven from a 200 Ω source or from a 50 Ω source through
a 1:4 balun, the noise figure (NF) for the composite amplifier is
6.8 dB at maximum gain. The output of each VGA can drive
100 Ω loads to 5 V p-p maximum.
Each VGA has an independent square law detector for autonomous,
automatic gain control (AGC) operation. Each detector setpoint
can be programmed independently through the SPI from −24 dBV
to −3 dBV in 3 dB steps. When both VGAs are arranged in AGC
mode and are programmed to the same setpoint, the composite NF
increases to 9 dB when backed off by 18 dB from maximum gain.
The
supply current of 80 mA. When disabled, it consumes 4 mA. It is
fabricated in an advanced silicon-germanium BiCMOS process and
is available in a 32-lead exposed paddle LFCSP package. Performance
is specified over a −40°C to +85°C temperature range.
MODE
VCM1
VPOS
VPOS
ENBL
INM1
COM
INP1
ADL5336
VGA1
GAIN1 DTO1 GAIN2 DTO2 COMD VPSD
COM
Cascadable IF VGAs with
FUNCTIONAL BLOCK DIAGRAM
operates from a 5 V supply and consumes a typical
OPP1 OPM1 IP2A IM2A COM IP2B IM2B
X
2
©2011 Analog Devices, Inc. All rights reserved.
Figure 1.
X
2
ADL5336
VGA2
ADL5336
LE
SPI
www.analog.com
CLK
VCM2
VPOS
OPP2
OPM2
VPOS
COM
SDO
DATA