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參數資料
| 型號： | AD9755-EB |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 1/28頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL FOR AD9755 |
| 產品培訓模塊： | DAC Architectures |
| 標準包裝： | 1 |
| 系列： | TxDAC+® |
| DAC 的數量： | 1 |
| 位數： | 14 |
| 采樣率（每秒）： | 300M |
| 數據接口： | 并聯 |
| 設置時間： | 11ns |
| DAC 型： | 電流 |
| 工作溫度： | -40°C ~ 85°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | AD9755 |
| 相關產品： | AD9755ASTZRL-ND - IC DAC 14BIT 300MSPS 48-LQFP AD9755ASTZ-ND - IC DAC 14BIT 300MSPS 48-LQFP |
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AD9755
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. 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 companies.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
2003 Analog Devices, Inc. All rights reserved.
REV. B
14-Bit, 300 MSPS
High Speed TxDAC+ D/A Converter
FUNCTIONAL BLOCK DIAGRAM
AVDD
ACOM
REFIO
FSADJ
PORT1
IOUTA
IOUTB
AD9755
DVDD
DCOM
LATCH
CLK+
CLK–
CLKVDD
PLLVDD
CLKCOM
RESET LPF DIV0 DIV1 PLLLOCK
PLL
CLOCK
MULTIPLIER
DAC
LATCH
DAC
REFERENCE
MUX
PORT2
PRODUCT DESCRIPTION
The AD9755 is a dual, muxed port, ultrahigh speed, single-
channel, 14-bit CMOS DAC. It integrates a high quality 14-bit
TxDAC+ core, a voltage reference, and digital interface circuitry
into a small 48-lead LQFP package. The AD9755 offers excep-
tional ac and dc performance while supporting update rates up
to 300 MSPS.
The AD9755 has been optimized for ultrahigh speed applica-
tions up to 300 MSPS where data rates exceed those possible on
a single data interface port DAC. The digital interface consists
of two buffered latches as well as control logic. These latches
can be time multiplexed to the high speed DAC in several ways.
This PLL drives the DAC latch at twice the speed of the exter-
nally applied clock and is able to interleave the data from the
two input channels. The resulting output data rate is twice that
of the two input channels. With the PLL disabled, an external
2
× clock may be supplied and divided by two internally.
The CLK inputs (CLK+/CLK–) can be driven either differentially
or single-ended, with a signal swing as low as 1 V p-p.
FEATURES
14-Bit Dual Muxed Port DAC
300 MSPS Output Update Rate
Excellent SFDR and IMD Performance
SFDR to Nyquist @ 25 MHz Output: 71 dB
Internal Clock Doubling PLL
Differential or Single-Ended Clock Input
On-Chip 1.2 V Reference
Single 3.3 V Supply Operation
Power Dissipation: 155 mW @ 3.3 V
48-Lead LQFP
APPLICATIONS
Communications: LMDS, LMCS, MMDS
Base Stations
Digital Synthesis
QAM and OFDM
The DAC utilizes a segmented current source architecture com-
bined with a proprietary switching technique to reduce glitch
energy and maximize dynamic accuracy. Differential current
outputs support single-ended or differential applications. The
differential outputs each provide a nominal full-scale current
from 2 mA to 20 mA.
The AD9755 is manufactured on an advanced low cost 0.35
m
CMOS process. It operates from a single supply of 3.0 V to 3.6 V
and consumes 155 mW of power.
PRODUCT HIGHLIGHTS
1. The AD9755 is a member of a pin compatible family of high
speed TxDAC+s providing 10-, 12-, and 14-bit resolution.
2. Ultrahigh Speed 300 MSPS Conversion Rate.
3. Dual 14-Bit Latched, Multiplexed Input Ports. The AD9755
features a flexible digital interface allowing high speed data
conversion through either a single or dual port input.
4. Low Power. Complete CMOS DAC function operates on
155 mW from a 3.0 V to 3.6 V single supply. The DAC full-
scale current can be reduced for lower power operation.
5. On-Chip Voltage Reference. The AD9755 includes a 1.20 V
temperature compensated band gap voltage reference.
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| AD9760AR | 功能描述:IC DAC 10BIT 125MSPS 28-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:TxDAC® 標準包裝:47 系列:- 設置時間:2µs 位數:14 數據接口:并聯 轉換器數目:1 電壓電源:單電源 功率耗散（最大）:55µW 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:28-SSOP（0.209"，5.30mm 寬） 供應商設備封裝:28-SSOP 包裝:管件 輸出數目和類型:1 電流，單極；1 電流，雙極 采樣率（每秒）:* |
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