Datasheet > AD9772AASTZ

AD9772AASTZ

更新时间： 2024-02-15 03:24:44

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
40页	861K
描述
14-Bit, 160 MSPS TxDAC+® with 2x Interpolation Filter

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AD9772AASTZ 技术参数

是否无铅：	含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFP
包装说明：	LFQFP, QFP48,.35SQ,20	针数：	48
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	8.02
最大模拟输出电压：	1.25 V	最小模拟输出电压：	-1 V
转换器类型：	D/A CONVERTER	输入位码：	BINARY
输入格式：	PARALLEL, WORD	JESD-30 代码：	S-PQFP-G48
JESD-609代码：	e3	长度：	7 mm
湿度敏感等级：	3	位数：	14
功能数量：	1	端子数量：	48
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装等效代码：	QFP48,.35SQ,20	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
电源：	3.3 V	认证状态：	Not Qualified
座面最大高度：	1.6 mm	标称安定时间 (tstl)：	0.011 µs
子类别：	Other Converters	标称供电电压：	3.3 V
表面贴装：	YES	技术：	CMOS
温度等级：	INDUSTRIAL	端子面层：	Matte Tin (Sn)
端子形式：	GULL WING	端子节距：	0.5 mm
端子位置：	QUAD	处于峰值回流温度下的最长时间：	40
宽度：	7 mm	Base Number Matches：	1

AD9772AASTZ 数据手册

14-Bit, 160 MSPS TxDAC+

with 2× Interpolation Filter

AD9772A

FEATURES

FUNCTIONAL BLOCK DIAGRAM

CLKCOM CLKVDD MOD0 MOD1 RESET PLLLOCK DIV0 DIV1

Single 3.1 V to 3.5 V supply

AD9772A

14-bit DAC resolution and input data width

160 MSPS input data rate

CLK+

PLLCOM

LPF

CLOCK DISTRIBUTION

AND MODE SELECT

PLL CLOCK

MULTIPLIER

CLK–

FILTER

CONTROL CONTROL

MUX

67.5 MHz reconstruction pass band @ 160 MSPS

74 dBc SFDR @ 25 MHz

PLLVDD

1×

1×/2×

2×/4×

2× interpolation filter with high- or low-pass response

73 dB image rejection with 0.005 dB pass-band ripple

Zero-stuffing option for enhanced direct IF performance

Internal 2×/4× clock multiplier

ZERO-

STUFF

MUX

DATA

INPUTS

(DB13 TO

DB0)

OUTA

2× FIR

INTER-

POLATION

FILTER

EDGE-

TRIGGERED

LATCHES

14-BIT DAC

OUTB

REFIO

FSADJ

1.2V REFERENCE

AND CONTROL AMP

SLEEP

250 mW power dissipation; 13 mW with power-down mode

48-lead LQFP package

DCOM DVDD

ACOM AVDD

REFLO

Figure 1.

APPLICATIONS

Communication transmit channel

W-CDMA base stations, multicarrier base stations,

direct IF synthesis, wideband cable systems

Instrumentation

GENERAL DESCRIPTION

The AD9772A can reconstruct full-scale waveforms with band-

widths of up to 67.5 MHz while operating at an input data rate

of 160 MSPS. The 14-bit DAC provides differential current

outputs to support differential or single-ended applications.

The AD9772A is a single-supply, oversampling, 14-bit digital-

to-analog converter (DAC) optimized for baseband or IF

waveform reconstruction applications requiring exceptional

dynamic range. Manufactured on an advanced CMOS process,

it integrates a complete, low distortion 14-bit DAC with a 2×

digital interpolation filter and clock multiplier. The on-chip PLL

clock multiplier provides all the necessary clocks for the digital

filter and the 14-bit DAC. A flexible differential clock input

allows for a single-ended or differential clock driver for

optimum jitter performance.

A segmented current source architecture is combined with a

proprietary switching technique to reduce spurious components

and enhance dynamic performance. Matching between the two

current outputs ensures enhanced dynamic performance in a

differential output configuration. The differential current

outputs can be fed into a transformer or a differential op amp

topology to obtain a single-ended output voltage using an

appropriate resistive load.

For baseband applications, the 2× digital interpolation filter

provides a low-pass response, thus providing as much as a

threefold reduction in the complexity of the analog reconstruc-

tion filter. It does so by multiplying the input data rate by a

factor of 2 while suppressing the original upper in-band image

by more than 73 dB. For direct IF applications, the 2× digital

interpolation filter response can be reconfigured to select the

upper in-band image (that is, the high-pass response) while

suppressing the original baseband image. To increase the signal

level of the higher IF images and their pass-band flatness in

direct IF applications, the AD9772A also features a zero-stuffing

option in which the data following the 2× interpolation filter is

upsampled by a factor of 2 by inserting midscale data samples.

The on-chip band gap reference and control amplifier are con-

figured for maximum accuracy and flexibility. The AD9772A

can be driven by the on-chip reference or by a variety of

external reference voltages. The full-scale current of the

AD9772A can be adjusted over a 2 mA to 20 mA range, thus

providing additional gain-ranging capabilities.

The AD9772A is available in a 48-lead LQFP package and is

specified for operation over the industrial temperature range of

–40°C to +85°C.

Rev. C

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

12 3 4 5 6 7...40

中文翻译

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AD9772AASTZ 替代型号

型号	品牌	替代类型	描述	数据表
AD9772AASTRL	ADI	完全替代	IC PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PQFP48, MS-026BBC, LQ
AD9772AASTZRL	ADI	完全替代	暂无描述
AD9772AAST	ADI	完全替代	14-Bit, 160 MSPS TxDAC+ with 2x Interpolation Filter

与AD9772AASTZ相关器件

型号	品牌	获取价格	描述	数据表
AD9772AASTZRL	ADI	获取价格	暂无描述
AD9772AASTZRL	ROCHESTER	获取价格	PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PQFP48, ROHS COMPLIANT,
AD9772AST	ADI	获取价格	14-Bit, 150 MSPS TxDAC⑩ with 2x Interpolation
AD9772ASTRL	ADI	获取价格	IC PARALLEL, WORD INPUT LOADING, 0.011 us SETTLING TIME, 14-BIT DAC, PQFP48, PLASTIC, LQFP
AD9772EB	ADI	获取价格	14-Bit, 150 MSPS TxDAC⑩ with 2x Interpolation
AD9773	ADI	获取价格	12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual
AD9773AST	ADI	获取价格	12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual
AD9773BSV	ADI	获取价格	12-Bit, 160 MSPS, 2x/4x/8x Interpolating Dual TxDAC D/A Converter
AD9773BSVRL	ADI	获取价格	12-Bit, 160 MSPS, 2x/4x/8x Interpolating Dual TxDAC D/A Converter
AD9773BSVZ	ADI	获取价格	12-Bit, 160 MSPS, 2x/4x/8x Interpolating Dual TxDAC D/A Converter

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