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參數(shù)資料
| 型號： | AD9775EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 14-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter |
| 中文描述： | 14位，160 MSPS的2X/4X/8X TxDAC系列插雙D / A轉(zhuǎn)換 |
| 文件頁數(shù)： | 2/48頁 |
| 文件大小： | 6054K |
| 代理商： | AD9775EB |
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REV. 0
AD9775
–2–
(continued from page 1)
errors associated with analog quadrature modulators. The 6 dB
of gain adjustment range can also be used to control the output
power level of each DAC.
The AD9775 features the ability to perform f
S
/2, f
S
/4, and f
S
/8
digital modulation and image rejection when combined with an
analog quadrature modulator. In this mode, the AD9775 ac-
cepts I and Q complex data (representing a single or multicarrier
waveform), generates a quadrature modulated IF signal along with
its orthogonal representation via its dual DACs, and presents
these two reconstructed orthogonal IF carriers to an analog
quadrature modulator to complete the image rejection
upconversion process. Another digital modulation mode (i.e.,
the Direct IF Mode) allows the original baseband signal repre-
sentation to be frequency translated such that pairs of images fall
at multiples of one-half the DAC update rate.
The AD977x family includes a flexible clock interface accepting
differential or single-ended sine wave or digital logic inputs. An
internal PLL clock multiplier is included and generates the
necessary on-chip high frequency clocks. It can also be disabled
to allow the use of a higher performance external clock source.
An internal programmable divider simplifies clock generation in
the converter when using an external clock source. A flexible data
input interface allows for straight binary or two’s complement
formats and supports single-port interleaved or dual-port data.
Dual high performance DAC outputs provide a differential
current output programmable over a 2 mA to 20 mA range. The
AD9775 is manufactured on an advanced 0.35 micron CMOS
process, operates from a single supply of 3.1 V to 3.5 V, and
consumes 1.2 W of power.
Targeted at wide dynamic range, multicarrier and multistandard
systems, the superb baseband performance of the AD9775 is ideal
for wideband CDMA, multicarrier CDMA, multicarrier TDMA,
multicarrier GSM, and high performance systems employing
high order QAM modulation schemes. The image rejection
feature simplifies and can help to reduce the number of signal
band filters needed in a transmit signal chain. The direct IF
mode helps to eliminate a costly mixer stage for a variety of
communications systems.
PRODUCT HIGHLIGHTS
1.
The AD9775 is the 14-bit member of the AD977x pin-
compatible, high performance, programmable 2
×
/4
×
/8
×
interpolating TxDAC+ family.
2.
Direct IF transmission capability for 70 MHz + IFs through
a novel digital mixing process.
3.
f
S
/2, f
S
/4, and f
S
/8 digital quadrature modulation and user-
selectable image rejection to simplify/remove cascaded
SAW filter stages.
4.
A 2
×
/4
×
/8
×
user-selectable interpolating filter eases data
rate and output signal reconstruction filter requirements.
5.
User-selectable two’s complement/straight binary data
coding.
6.
User-programmable channel gain control over 1 dB
range in 0.01 dB increments.
7.
User-programmable channel offset control
±
10% over
the FSR.
8.
Ultra high speed 400 MSPS DAC conversion rate.
9.
Internal clock divider provides data rate clock for easy
interfacing.
10.
Flexible clock input with single-ended or differential input,
CMOS, or 1 V p-p LO sine wave input capability.
11.
Low power: Complete CMOS DAC operates on 1.2 W
from a 3.1 V to 3.5 V single supply. The 20 mA full-scale
current can be reduced for lower power operation and
several sleep functions are provided to reduce power dur-
ing idle periods.
12.
On-chip voltage reference: The AD9775 includes a 1.20 V
temperature compensated band gap voltage reference.
13.
80-lead thermally enhanced TQFP.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9777 | 16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter |
| AD9777BSV | 16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter |
| AD9777EB | 16-Bit, 160 MSPS 2X/4X/8X Interpolating Dual TxDAC+ D/A Converter |
| AD977 | 16-Bit, 100 kSPS BiCMOS A/D Converter(100kSPS 16位A/D轉(zhuǎn)換器) |
| AD977A | 16-Bit, 200 kSPS BiCMOS A/D Converter(200kSPS 16位A/D轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9775-EB | 制造商:Analog Devices 功能描述:EVAL BOARD - Bulk |
| AD9775-EBZ | 功能描述:BOARD EVALUATION FOR AD9775 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數(shù)模轉(zhuǎn)換器 (DAC) 系列:TxDAC+® 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- DAC 的數(shù)量:4 位數(shù):12 采樣率（每秒）:- 數(shù)據(jù)接口:串行，SPI? 設(shè)置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| AD9776 | 制造商:AD 制造商全稱:Analog Devices 功能描述:400 MHz to 6 GHz Broadband Quadrature Modulator |
| AD9776A | 制造商:AD 制造商全稱:Analog Devices 功能描述:Dual, 12-/14-/16-Bit,1 GSPS Digital-to-Analog Converters |
| AD9776ABSVZ | 功能描述:IC DAC 12BIT 1.0GSPS 100TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 設(shè)置時間:4µs 位數(shù):12 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:8-uMAX 包裝:管件 輸出數(shù)目和類型:2 電壓，單極 采樣率（每秒）:* 產(chǎn)品目錄頁面:1398 (CN2011-ZH PDF) |
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