Datasheet > VCA2613Y

VCA2613Y

更新时间： 2024-11-01 22:16:15

品牌	Logo	应用领域
BB		放大器
页数	文件大小	规格书
16页	341K
描述
Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp

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VCA2613Y 数据手册

VCA2613

SBOS179D – DECEMBER 2000 – REVISED OCTOBER 2004

Dual, VARIABLE GAIN AMPLIFIER

with Low-Noise Preamp

FEATURES

DESCRIPTION

The VCA2613 is a dual, Low-Noise Preamplifier (LNP), plus

low-noise Variable Gain Amplifier (VGA). The combination of

Active Termination (AT) and Maximum Gain Select (MGS)

allow for the best noise performance. The VCA2613 also

features low crosstalk and outstanding distortion perfor-

mance.

● LOW NOISE PREAMP:

Low Input Noise: 1.0nV/√Hz

Active Termination Noise Reduction

Switchable Termination Value

80MHz Bandwidth

5dB to 25dB Gain

The LNP has differential input and output capability and is

strappable for gains of 5dB, 17dB, 22dB or 25dB. Low input

impedance is achieved by AT, resulting in as much as a 4.6dB

improvement in noise figure over conventional shunt termina-

tion. The termination value can also be switched to accommo-

date different sources. The output of the LNP is available for

external signal processing.

Differential In and Out

● LOW NOISE VARIABLE GAIN AMPLIFIER:

Low Noise VCA: 3.3nV/√Hz, Differential

Programming Optimizes Noise Figure

24dB to 45dB Gain

40MHz Bandwidth

Differential In and Out

The variable gain is controlled by an analog voltage whose

gain varies from 0dB to the gain set by the MGS. The ability

to program the variable gain also allows the user to optimize

dynamic range. The VCA input can be switched from the

LNP to external circuits for different applications. The output

can be used in either a single-ended or differential mode to

drive high-performance Analog-to-Digital (A/D) converters,

and is cleanly limited for optimum overdrive recovery.

● LOW CROSSTALK: 52dB at Max Gain, 5MHz

● HIGH-SPEED VARIABLE GAIN ADJUST

● SWITCHABLE EXTERNAL PROCESSING

APPLICATIONS

The combination of low noise, gain, and gain range program-

mability makes the VCA2613 a versatile building block in a

number of applications where noise performance is critical.

The VCA2613 is available in a TQFP-48 package.

● ULTRASOUND SYSTEMS

● WIRELESS RECEIVERS

● TEST EQUIPMENT

Maximum Gain Select

VCA_CNTL

FB_CNTL

LNP_OUTN

VCA_INN

MGS₀MGS₁MGS₂

RF₂

RF₁

FBSW

VCA2613

(1 of 2 Channels)

Analog

Control

Maximum Gain

Select

Input

LNP_IN

VCA_OUTN

LNP_GS1

LNP_GS2

Programmable

Gain Amplifier

24 to 45dB

Voltage

Controlled

Attenuator

Low Noise

Preamp

5dB to 25dB

LNP

Gain Set

LNP_GS3

VCA_OUT

LNP_IN

LNP_OUT

VCA_IN

SEL

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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与VCA2613Y相关器件

型号	品牌	获取价格	描述	数据表
VCA2613Y/250	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
VCA2613Y/250	TI	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
VCA2613Y/2K	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
VCA2613Y/2K	TI	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
VCA2613Y/2KG4	TI	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Low-Noise Preamp
VCA2614	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Input Buffer
VCA2614	TI	获取价格	High Gain Adjust Range, Wideband, VARIABLE GAIN AMPLIFIER
VCA2614Y/250	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Input Buffer
VCA2614Y/250	TI	获取价格	Dual Variable-Gain Amplifier With Low Noise Pre-Amp 32-TQFP -40 to 85
VCA2614Y/2K	BB	获取价格	Dual, VARIABLE GAIN AMPLIFIER with Input Buffer

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