5秒后页面跳转
5962-9463701MXC PDF预览

5962-9463701MXC

更新时间: 2024-10-28 13:53:55
品牌 Logo 应用领域
亚德诺 - ADI 转换器
页数 文件大小 规格书
12页 245K
描述
IC 1-CH 10-BIT FLASH METHOD ADC, PARALLEL ACCESS, QFP68, QCC-68, Analog to Digital Converter

5962-9463701MXC 数据手册

 浏览型号5962-9463701MXC的Datasheet PDF文件第6页浏览型号5962-9463701MXC的Datasheet PDF文件第7页浏览型号5962-9463701MXC的Datasheet PDF文件第8页浏览型号5962-9463701MXC的Datasheet PDF文件第9页浏览型号5962-9463701MXC的Datasheet PDF文件第11页浏览型号5962-9463701MXC的Datasheet PDF文件第12页 
AD9020  
N
ANALOG  
INPUT  
N + 1  
ta  
N
N + 1  
ENCODE  
tOD  
DATA  
OUTPUT  
DATA FOR N  
DATA FOR N + 1  
ta APERTURE DELAY  
tOD OUTPUT DELAY  
Figure 9. Timing Diagram  
Timing  
Layout and Power Supplies  
In the AD9020, the rising edge of the ENCODE signal triggers  
the A/D conversion by latching the comparators. (See Figure 9.)  
Proper layout of high speed circuits is always critical but par-  
ticularly important when both analog and digital signals  
are involved.  
The ENCODE is TTL/CMOS-compatible and should be driven  
from a low jitter (phase noise) source. Jitter on the ENCODE  
signal will raise the noise floor of the converter. Fast, clean edges  
will reduce the jitter in the signal and allow optimum ac perfor-  
mance. Locking the system clock to a crystal oscillator also  
helps reduce jitter. The AD9020 is designed to operate with a  
50% duty cycle; small (10%) variations in duty cycle should not  
degrade performance.  
Analog signal paths should be kept as short as possible and be  
properly terminated to avoid reflections. The analog input volt-  
age and the voltage references should be kept away from digital  
signal paths; this reduces the amount of digital switching noise  
that is capacitively coupled into the analog section of the circuit.  
Digital signal paths should also be kept short, and run lengths  
should be matched to avoid propagation delay mismatch.  
Data Format  
In high-speed circuits, layout of the ground circuit is a critical fac-  
tor. A single, low impedance ground plane, on the component  
side of the board, will reduce noise on the circuit ground. Power  
supplies should be capacitively coupled to the ground plane to  
reduce noise in the circuit. Multilayer boards allow designers to  
lay out signal traces without interrupting the ground plane and  
provide low impedance power planes.  
The format of the output data (D0–D9) is controlled by the MSB  
INVERT and LSBs INVERT pins. These inputs are dc control  
inputs, and should be connected to GROUND or +VS. Table I  
gives information to choose from among Binary, Inverted Binary,  
Two’s Complement and Inverted Two’s Complement coding.  
The OVERFLOW output is an indication that the analog input  
signal has exceeded the voltage at +VSENSE. The accuracy of the  
overflow transition voltage and output delay are not tested or  
included in the data sheet limits. Performance of the overflow  
indicator is dependent on circuit layout and slew rate of the  
encode signal. The operation of this function does not affect the  
other data bits (D0–D9). It is not recommended for applications  
requiring a critical measure of the analog input voltage.  
It is especially important to maintain the continuity of the ground  
plane under and around the AD9020. In systems with dedicated  
digital and analog grounds, all grounds of the AD9020 should be  
connected to the analog ground plane.  
The power supplies (+VS and –VS) of the AD9020 should be iso-  
lated from the supplies used for external devices; this further reduces  
the amount of noise coupled into the A/D converter. Sockets limit  
the dynamic performance and should be used only for prototypes or  
evaluation—PCK Elastomerics Part # CCS-68-55 is recommended  
for the LCC package.  
An evaluation board is available to aid designers and provide a  
suggested layout.  
REV. C  
–10–  

与5962-9463701MXC相关器件

型号 品牌 获取价格 描述 数据表
5962-9463701MXX ETC

获取价格

Analog-to-Digital Converter, 10-Bit
5962-9463701MYX ETC

获取价格

Analog-to-Digital Converter, 10-Bit
5962-9463702MXC WEDC

获取价格

IC 1-CH 10-BIT FLASH METHOD ADC, PARALLEL ACCESS, QFP68, GULLWING, LCC-68, Analog to Digit
5962-9463702MXX ETC

获取价格

Analog-to-Digital Converter, 10-Bit
5962-9463702MYX ETC

获取价格

Analog-to-Digital Converter, 10-Bit
5962-9464001MPX ETC

获取价格

MOSFET Driver
5962-9464101QRX ETC

获取价格

Parallel-Input Frequency Synthesizer
5962-9464201QYX ETC

获取价格

Peripheral (Multifunction) Controller
5962-9464201QZX ETC

获取价格

Peripheral (Multifunction) Controller
5962-9464601HXX ETC

获取价格

Digital-to-Resolver/Synchro Converter