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參數(shù)資料
| 型號(hào)： | AD9773 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual TxDAC+ D/A Converter |
| 中文描述： | 12位，160 MSPS的2】/ 4】/ 8】TxDAC系列插雙D / A轉(zhuǎn)換 |
| 文件頁(yè)數(shù)： | 2/19頁(yè) |
| 文件大小： | 218K |
| 代理商： | AD9773 |
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AD9773
PRODUCT DESCRIPTION (Continued)
2
PRELIMINARY TECHNICAL DATA
The selectable 2
×
/4
×
/8
×
interpolation filters simplify the
requirements of the reconstruction filters while simulta-
neously enhancing the TxDAC+ family
’
s passband noise/
distortion performance. The independent channel gain and
offset registers allow the user to calibrate LO feedthrough
and sideband suppression errors associated with analog
quadrature modulators. The 6 dB of gain adjustment range
also can be used to control the output power level of each
DAC.
The AD9773 features the ability to perform Fs/4 and Fs/8
digital modulation and image rejection when combined
with an analog quadrature modulator. In this mode, the
AD9773 would accept I and Q complex data (representing a
single or multicarrier waveform), generate a quadrature
modulated IF signal along with its orthogonal representa-
tion via its dual DACs, and present these two recon-
structed 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 representa-
tion to be frequency translated such that pairs of images
fall at multiples of 1/2 the DAC update rate.
The AD9773 family includes a flexible clock interface
accepting differential or single-ended sinewave or digital
logic inputs. An internal PLL clock multiplier is also
included to generate 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 program-
mable divider simplifies clock generation in the converter
when using an external clock source. A flexible data input
interface allows for straight binary or 2
’
s complement
formats as well as supports single port interleaved or dual
port data.
Dual high performance TxDAC+s provides a differential
current output programmable over a 0-20mA range. The
AD9773 is manufactured on an advanced 0.35 micron
CMOS process, operates from a single supply of 3.0V to 3.6
V and consumes <700 mW of power.
Targeted at wide dynamic range, Multi-Carrier and Multi-
Standard systems, the superb baseband performance of the
AD9773 is ideal for Wideband-CDMA, Multi-Carrier
CDMA, Multi-Carrier TDMA, Multi-Carrier GSM and high
performance systems employing high order QAM modula-
tion schemes. The image rejection feature simplifies and
can help to reduce the number of signal band filters needed
in an transmit signal chain. The direct IF mode helps to
eliminate a costly mixer stage for a variety of communica-
tions systems.
PRODUCT HIGHLIGHTS
1. The AD9773 is the 12 bit member of the AD977x family of
pin-compatible, high performance, programmable 2
×
/4
×
/8
×
interpolating TxDAC+s.
2. Direct IF Transmission capability for 70MHz +IFs
through a novel digital mixing process
3. Fs/8 Digital Quadrature Modulation and user selectable
image rejection to simplify /remove cascaded SAW filter
stages
4. 2
×
/4
×
/8
×
User Selectable Interpolating Filter eases data
rate and output signal reconstruction filter requirements.
5. User selectable 2
’
s Complement/Straight Binary Data
Coding.
6. User programmable Channel Gain Control over 1 dB
range in 0.01dB increments
7. User programmable Channel Offset +/-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 1V p-p LO Sinewave input capability.
11. Low Power: Complete CMOS DAC operates on <700
mW from a 3.0V to 3.6V single supply. The 20ma full-scale
current can be reduced for lower power operation, and a
several sleep functions are provided to reduce power
during idle periods.
12. On-chip Voltage Reference: The AD9773 includes a 1.20
V temperature-compensated bandgap voltage reference.
13. Small 80 lead LQFP
REV. PrA
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AD9773AST | 12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual TxDAC+ D/A Converter |
| AD9773EB | 12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual TxDAC+ D/A Converter |
| AD9774AS | 14-Bit, 32 MSPS TxDAC⑩ with 4x Interpolation Filters |
| AD9774EB | 14-Bit, 32 MSPS TxDAC⑩ with 4x Interpolation Filters |
| AD9774 | 14-Bit，32 MSPS DAC with 4× Interpolation Filters(14位的，輸入數(shù)據(jù)數(shù)率為32MSPS的具有內(nèi)插濾波器的D/A轉(zhuǎn)換器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9773AST | 制造商:AD 制造商全稱:Analog Devices 功能描述:12-Bit, 160 MSPS 2】/4】/8】 Interpolating Dual TxDAC+ D/A Converter |
| AD9773BSV | 制造商:Analog Devices 功能描述:DAC 2-CH R-2R 12-bit 80-Pin TQFP EP 制造商:Rochester Electronics LLC 功能描述:12BIT 160 MSPS DUAL TXDAC+ D/A CONVERTER - Bulk 制造商:Analog Devices 功能描述:IC 12-BIT DAC |
| AD9773BSVRL | 制造商:Analog Devices 功能描述:DAC 2-CH R-2R 12-bit 80-Pin TQFP EP T/R |
| AD9773BSVZ | 功能描述:IC DAC 12BIT DUAL 160MSPS 80TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC® 標(biāo)準(zhǔn)包裝:1 系列:- 設(shè)置時(shí)間:4.5µs 位數(shù):12 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 電壓電源:單電源 功率耗散（最大）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOICN 包裝:剪切帶 (CT) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:* 其它名稱:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND |
| AD9773BSVZRL | 功能描述:IC DAC 12BIT DUAL 160MSPS 80TQFP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 數(shù)模轉(zhuǎn)換器 系列:TxDAC® 產(chǎn)品培訓(xùn)模塊:Data Converter Fundamentals DAC Architectures 標(biāo)準(zhǔn)包裝:750 系列:- 設(shè)置時(shí)間:7µs 位數(shù):16 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應(yīng)商設(shè)備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數(shù)目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
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