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AD9561JR PDF预览

AD9561JR

更新时间： 2024-01-15 11:53:06
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 275K
描述
Pulse Width Modulator

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AD9561JR 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：SOIC包装说明：PLASTIC, SOIC-28
针数：28Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.84模拟集成电路 - 其他类型：ANALOG CIRCUIT
JESD-30 代码：R-PDSO-G28JESD-609代码：e0
长度：17.9 mm功能数量：1
端子数量：28最高工作温度：70 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：SOP封装等效代码：SOP28,.4
封装形状：RECTANGULAR封装形式：SMALL OUTLINE
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
认证状态：Not Qualified座面最大高度：2.65 mm
子类别：Other Analog ICs标称供电电压 (Vsup)：5 V
表面贴装：YES温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)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

AD9561JR 数据手册

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a
Pulse Width Modulator  
AD9561  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
60 MHz Pulse Rate  
8-Bit Resolution  
AD9561  
Center, Left or Right Justify  
Low Power: 700 mW typical  
Minimum Pulse Width: <5 ns  
Maximum PW: 100 % Full-scale  
RAMP  
INTERNAL  
TIMING  
OUTPUT  
LOGIC  
CLOCK  
RAMP  
REF  
CAL  
OUT  
APPLICATIONS  
Laser Printers  
Digital Copiers  
Color Copiers  
R
SET  
CAL  
DAC  
PWM  
OUT  
CAL IN  
8-BIT  
DATA  
L
A
T
C
H
L
DAC  
CAL  
OUT  
A
T
C
H
SEM/DEM  
LEM/TEM  
RETRACE  
GENERAL DESCRIPTION  
Additionally, input data setup and hold time are symmetrical at  
2 ns each, simplifying interface to the system bus.  
The AD9561 is a second generation high speed, digitally  
programmable pulse width modulator (PWM). Output pulse  
width is proportional to an 8-bit DATA input value. Two  
additional control inputs determine if the pulse is placed at the  
beginning, middle or end of the clock period. Pulse width and  
placement can be changed every clock cycle up to 60 MHz.  
Finally, chip design and pinout are optimized to decrease  
sensitivity of analog circuits to digital coupling. (See layout  
section for detailed recommendations for optimum results.)  
Inputs are TTL or CMOS compatible, and outputs are CMOS  
compatible. The AD9561JR is packaged in a 28-lead plastic  
SOIC. It is rated over the commercial temperature range, 0°C  
to +70°C.  
Pulse width modulation is a well proven method for controlling  
gray scale and resolution enhancement in scanning laser print  
engines. Modulating pulse width provides the most cost  
effective method for continuous tone reproduction and resolu-  
tion enhancement in low-to-moderate cost scanning electro-  
photographic systems.  
HIGHLIGHTS  
1. 60 MHz native printer clock rate.  
2. Single +5 V power supply.  
3. On-chip Autocalibration.  
The AD9561 uses precision analog circuits to control dot size  
so that near-photographic quality images are practical without  
the high frequency clock signals required by all digital approaches.  
4. Pulse placement flexibility.  
5. High resolution: 256 pulse widths.  
The AD9561 has improved features and performance over its  
predecessor, the AD9560. An improved ramp topology enables  
control of pulse width through 100% of the dot clock period as  
opposed to 95% for the AD9560. This enables smooth transi-  
tion across dot boundaries for line screen applications.  
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, nor for any infringements of patents or other rights of third parties  
which 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: 617/329-4700  
Fax: 617/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 1996  
12345678

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