Datasheet > ADL5243

ADL5243

更新时间： 2024-10-28 08:19:07

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
32页	1021K
描述
100 MHz to 4000 MHz RF/IF Digitally Controlled VGA

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ADL5243 数据手册

100 MHz to 4000 MHz

RF/IF Digitally Controlled VGA

Data Sheet

ADL5243

FEATURES

GENERAL DESCRIPTION

Operating frequency from 100 MHz to 4000 MHz

Digitally controlled VGA with serial and parallel interfaces

6-bit, 0.5 dB digital step attenuator

31.5 dB gain control range with 0.25 dB step accuracy

Gain Block Amplifier 1

Gain: 19.2 dB at 2140 MHz

OIP3: 40.2 dBm at 2140 MHz

P1dB: 19.8 dBm at 2140 MHz

Noise figure: 2.9 dB at 2140 MHz

The ADL5243 is a high performance, digitally controlled

variable gain amplifier operating from 100 MHz to 4000 MHz.

The VGA integrates two high performance amplifiers and a

digital step attenuator (DSA). Amplifier 1 (AMP1) is an

internally matched gain block amplifier with 20 dB gain, and

Amplifier 2 (AMP2) is a broadband ¼ W driver amplifier. The

DSA is 6-bit with a 31.5 dB gain control range, 0.5 dB steps, and

0.25 dB step accuracy. The attenuation of the DSA can be

controlled using a serial or parallel interface.

¼ W Driver Amplifier 2

The gain block and DSA are internally matched to 50 Ω at their

inputs and outputs, and all three internal devices are separately

biased. The separate bias allows all or part of the ADL5243 to be

used, which allows for easy reuse throughout a design. The

pinout of the ADL5243 also enables the gain block, DSA, or

¼ W driver amplifier to be first, giving the VGA maximum

flexibility in a signal chain.

Gain: 14.2 dB at 2140 MHz

OIP3: 41.1 dBm at 2140 MHz

P1dB: 26.0 dBm at 2140 MHz

Noise figure: 3.7 dB at 2140 MHz

Gain block, DSA, or ¼ W driver amplifier can be first

Low quiescent current of 175 mA

The companion ADL5240 integrates a gain block with DSA

The ADL5243 consumes 175 mA and operates off a single

supply ranging from 4.75 V to 5.25 V. The VGA is packaged in a

thermally efficient, 5 mm × 5 mm, 32-lead LFCSP and is fully

specified for operation from −40°C to +85°C. A fully populated

evaluation board is available.

APPLICATIONS

Wireless infrastructure

Automated test equipment

RF/IF gain control

FUNCTIONAL BLOCK DIAGRAM

VDD

SERIAL/PARALLEL INTERFACE

23 NC

22 NC

DSAIN

21 DSAOUT

0.5dB

1dB

2dB

4dB

8dB

16dB

ADL5243

AMP1OUT/VCC

AMP2IN

AMP2

AMP1

17 NC

Figure 1.

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 registeredtrademarks arethe property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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与ADL5243相关器件

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ADL5243ACPZ-R7	ADI	获取价格	100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
ADL5243-EVALZ	ADI	获取价格	100 MHz to 4000 MHz RF/IF Digitally Controlled VGA
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ADL5246ACPZN-R7	ADI	获取价格	3 GHz Variable Gain LNA with Integrated ½ W D
ADL5246-EVALZ	ADI	获取价格	3 GHz Variable Gain LNA with Integrated Â½ W
ADL5303	ADI	获取价格	160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter
ADL5303ACPZ	ADI	获取价格	160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter
ADL5303ACPZ-R2	ADI	获取价格	160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter
ADL5303ACPZ-R7	ADI	获取价格	160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter
ADL5303ACPZ-RL	ADI	获取价格	160 dB Range 100 pA to 10 mA Low Cost Logarithmic Converter

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