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AD7011 PDF预览

AD7011

更新时间: 2024-01-04 11:33:52
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
12页 392K
描述
CMOS, ADC p/4 DQPSK Baseband Transmit Port

AD7011 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:SSOP
包装说明:SSOP,针数:24
Reach Compliance Code:unknown风险等级:5.74
JESD-30 代码:R-PDSO-G24JESD-609代码:e0
长度:8.2 mm湿度敏感等级:1
功能数量:1端子数量:24
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:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):240认证状态:COMMERCIAL
座面最大高度:2 mm标称供电电压:5 V
表面贴装:YES技术:CMOS
电信集成电路类型:TELECOM CIRCUIT温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:5.3 mm
Base Number Matches:1

AD7011 数据手册

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CMOS, ADC /4 DQPSK  
Baseband Transmit Port  
a
AD7011  
GENERAL D ESCRIP TIO N  
FEATURES  
T he AD7011 is a complete low power, CMOS, π/4 DQPSK  
modulator with single +5 V power supply. T he part is designed  
to perform the baseband conversion of I and Q transmit wave-  
forms in accordance with the American Digital Cellular T ele-  
phone system (T IA IS-54).  
Single +5 V Supply  
On-Chip / 4 DQPSK Modulator  
Modulator Bypass Analog Mode  
Root-Raised Cosine Tx Filters, = 0.35  
Tw o 10-Bit D/ A Converters  
4th Order Reconstruction Filters  
Differential Analog Outputs  
On-Chip Ram p Up/ Dow n Pow er Control  
On-Chip Tx Offset Calibration  
Dual Mode Operation, Analog and Digital  
Very Low Pow er Dissipation, 30 m W typical  
Pow er Dow n Mode < 10 A  
On-Chip Voltage Reference  
24-Pin SSOP  
T he on-chip π/4 Differential Quadrature Phase Shift Keying  
(DQPSK) digital modulator, which includes the root raised  
cosine filters, generates I and Q data in response to the transmit  
data stream. T he AD7011 also contains ramp control envelope  
logic to shape the I and Q output waveforms when ramping up  
or down at the beginning or end of a transmit burst.  
Besides providing all the necessary logic to perform π/4 DQPSK  
modulation, the part also provides reconstruction filters to  
smooth the DAC outputs, providing continuous time analog  
outputs. T he AD7011 generates differential analog outputs for  
both the I and Q signals.  
APPLICATIONS  
Am erican Digital Cellular Telephony  
Am erican Analog Cellular Telephony  
As it is a necessity for all digital mobile systems to use the lowest  
possible power, the device has transmit and receive power-down  
options. T he AD7011 is housed in a space efficient 24-pin  
SSOP (Shrink Small Outline Package).  
FUNCTIO NAL BLO CK D IAGRAM  
V
V
AGND  
DGND  
DD  
AA  
MCLK  
I
Q
I
ITx  
ITx  
10-BIT  
I-DAC  
RECONSTRUCTION  
FILTERS  
BIN (Q DATA)  
ANALOG MODE  
SERIAL  
INTERFACE  
MODULATOR  
BYPASS  
CALIBRATION CIRCUITRY  
Tx DATA (I DATA)  
Tx CLK (FRAME)  
π /4 DQPSK  
DIGITAL  
MODULATOR  
QTx  
QTx  
10-BIT  
Q-DAC  
RECONSTRUCTION  
FILTERS  
Q
READY  
POWER  
BOUT  
2.46V  
REFERENCE  
AD7011  
BYPASS  
MODE1 MODE2  
REV. B  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700 Fax: 617/ 326-8703  

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