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參數(shù)資料
| 型號： | 5962F0721401VZC |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | ADC |
| 英文描述： | 2-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, CQFP128 |
| 封裝： | CERAMIC, MS-026BFB, QFP-128 |
| 文件頁數(shù)： | 40/44頁 |
| 文件大小： | 1491K |
| 代理商： | 5962F0721401VZC |
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Pin Functions
Pin No.
Symbol
Equivalent Circuit
Description
127
DES / SCS
Dual Edge Sampling and Serial Interface Chip Select. With
pin 41 logic low, the device is in Extended Control Mode and
this pin is the enable pin for the Serial Interface . When in
Non-Extended Control Mode and this pin is connected to
V
A/2, DES Mode is selected where the I- Channel input is
sampled at twice the input clock rate and the Q- Channel
input is ignored. See 1.1.5.1 Dual-Edge Sampling. When in
Non-Extended Controll Mode and DES is not desired, this
pin should be tied to V
A.
18
19
CLK+
CLK-
LVDS Clock input pins for the ADC. The differential clock
signal must be a.c. coupled to these pins. The input signal is
sampled on the falling edge of CLK+. See 1.1.2 Acquiring
CLOCK INPUTS for an overview of the clock inputs.
10
11
22
23
V
INI
V
INI+
V
INQ+
V
INQ
Analog signal inputs to the ADC. The differential full-scale
input range is programmable using the FSR pin 14 in Non-
Extended Control Mode and the Input Full-Scale Voltage
Adjust register in the Extended Control Mode. Refer to the
V
IN specification in the Converter Electrical Characteristics
for the full-scale input range in the Non-Extended Control
Mode. Refer to 1.4 REGISTER DESCRIPTION for the full-
scale input range in the Extended Control Mode.
7
V
CMO
Common Mode Voltage. This pin is the common mode
output in d.c. coupling mode and also serves as the a.c.
coupling mode select pin. When d.c. coupling is used at the
analog inputs, the voltage output at this pin is required to be
the common mode input voltage at VIN+ and VIN. When
a.c. coupling is used, this pin should be grounded. This pin
is capable of sourcing or sinking 100
μA. See 2.3 THE
31
V
BG
Bandgap output voltage. This pin is capable of sourcing or
sinking 100
μA and can drive a load up to 80 pF.
126
CalRun
Calibration Running indication. This pin is at a logic high
when calibration is running.
5
www.national.com
ADC08D1520QML
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