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AD8326ARP-EVAL PDF预览

AD8326ARP-EVAL

更新时间: 2024-02-21 01:11:54
品牌 Logo 应用领域
亚德诺 - ADI 驱动器有线电视
页数 文件大小 规格书
24页 473K
描述
High Output Power Programmable CATV Line Driver

AD8326ARP-EVAL 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:HSOP,针数:28
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.33.00.01风险等级:5.83
差分输出:YES驱动器位数:1
输入特性:STANDARD接口集成电路类型:LINE DRIVER
接口标准:GENERAL PURPOSEJESD-30 代码:R-PDSO-G28
JESD-609代码:e3长度:17.935 mm
湿度敏感等级:1功能数量:1
端子数量:28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:HSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, HEAT SINK/SLUG峰值回流温度(摄氏度):225
认证状态:Not Qualified最大接收延迟:
座面最大高度:2.49 mm最大供电电压:12.6 V
最小供电电压:11.4 V标称供电电压:12 V
表面贴装:YES温度等级:INDUSTRIAL
端子面层:MATTE TIN端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

AD8326ARP-EVAL 数据手册

 浏览型号AD8326ARP-EVAL的Datasheet PDF文件第2页浏览型号AD8326ARP-EVAL的Datasheet PDF文件第3页浏览型号AD8326ARP-EVAL的Datasheet PDF文件第4页浏览型号AD8326ARP-EVAL的Datasheet PDF文件第5页浏览型号AD8326ARP-EVAL的Datasheet PDF文件第6页浏览型号AD8326ARP-EVAL的Datasheet PDF文件第7页 
High Output Power  
Programmable CATV Line Driver  
a
AD8326  
FEATURES  
FUNCTIO NAL BLO CK D IAGRAM  
Supports DOCSIS Standard for Reverse Path  
Transmission  
V
CC  
(7 PINS)  
BYP  
Gain Programmable in 0.75 dB Steps over a 53.5 dB Range  
Low Distortion at 65 dBmV Output  
–62 dBc SFDR at 21 MHz  
–58 dBc SFDR at 65 MHz  
1 dB Compression of 25 dBm at 10 MHz  
Output Noise Level  
AD8326  
V
V
V
V
IN+  
OUT+  
DIFF OR  
SINGLE  
INPUT  
AMP  
POWER  
AMP  
ATTENUATION  
CORE  
VERNIER  
IN–  
OUT–  
Z
DIFF =  
OUT  
75  
8
DECODE  
–45 dBmV in 160 kHz  
Z
Z
(SINGLE) = 800⍀  
(DIFF) = 1.6k⍀  
IN  
IN  
8
POWER-DOWN  
LOGIC  
Maintains 75 Output Impedance  
Power-Up and Power-Down Condition  
Upper Bandwidth: 100 MHz (Full Gain Range)  
Single or Dual Supply Operation  
DATA LATCH  
8
SHIFT  
REGISTER  
APPLICATIONS  
Gain-Programmable Line Driver  
CATV Telephony Modems  
TXEN  
GND  
DATEN DATA CLK  
V
EE  
(10 PINS)  
SLEEP  
CATV Terminal Devices  
General-Purpose Digitally Controlled Variable Gain Block  
40  
45  
50  
55  
60  
65  
70  
75  
80  
ARP(V = +12V)  
S
ARE(V = ؎5V)  
S
ARP(V = 69dBmV)  
O
ARP(V = 67dBmV)  
O
GENERAL D ESCRIP TIO N  
The AD8326 is a high-output power, digitally controlled, vari-  
able gain amplifier optimized for coaxial line driving applications  
such as data and telephony cable modems that are designed to  
the MCNS-DOCSIS upstream standard. An 8-bit serial word  
determines the desired output gain over a 53.5 dB range result-  
ing in gain changes of 0.75 dB/LSB. The AD8326 is offered in  
two models, each optimized to support the desired output power  
and resulting performance.  
ARE(V = 65dBmV)  
O
ARE(V = 62dBmV)  
O
5
15  
25  
35  
45  
55  
65  
FREQUENCY MHz  
The AD8326 comprises a digitally controlled variable attenuator  
of 0 dB to –54 dB, that is preceded by a low noise, fixed-gain  
buffer and is followed by a low distortion high-power amplifier.  
The AD8326 accepts a differential or single-ended input signal.  
The output is designed to drive a 75 load, such as coaxial  
cable, although the AD8326 is capable of driving other loads.  
Figure 1. Worst Harmonic Distortion vs. Frequency  
The differential output of the AD8326 is compliant with DOCSIS  
paragraph 4.2.10.2 for “Spurious Emissions During Burst On/Off  
Transients.” In addition, this device has a sleep mode function  
that reduces the quiescent current to 4 mA.  
When driving 67 dBm into a 75 load, the AD8326ARP  
provides a worst harmonic of only –59 dBc at 21 MHz and  
–57 dBc at 42 MHz. When driving 65 dBmV into a 75 load,  
the AD8326ARE provides a worst harmonic of only –62 dBc at  
21 MHz and –60 dBc at 42 MHz.  
The AD8326 is packaged in a low-cost 28-lead TSSOP and a  
28-lead P (power) SOIC. Both devices have an operational tem-  
perature range of –40°C to +85°C.  
REV. 0  
Information furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assumed by Analog Devices for its  
use, norforanyinfringementsofpatentsorotherrightsofthirdpartiesthat  
may result from its use. No license is granted by implication or otherwise  
under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
www.analog.com  
© Analog Devices, Inc., 2001  

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