參數(shù)資料
型號： FMS7401
廠商： Fairchild Semiconductor Corporation
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： Digital Power Controller
中文描述： 數(shù)字電源控制器
文件頁數(shù)： 17/80頁
文件大?。?/td> 1535K
代理商： FMS7401
PRODUCT SPECIFICATION
FMS7401/7401L
REV. 1.0.2 6/23/04
17
Figure 6. ADC Block Diagram
4
4.1.1 ADCNTRL1 Register
The ADCNTRL1 is an 8-bit memory map register used to configure and control the ADC circuits. Software has both read and write
access to all bits of the register.
Bit 7 of the ADCNTRL1 register is the ADC pending (APND) flag and is triggered after the 8-bit converted digital value is latched to
the ADATA register towards the end of the ADC conversion cycle. The APND bit may be used by software to monitor when to access
ADATA or to issue microcontroller hardware interrupts (if enabled). In order for software to monitor APND, it must be cleared before
the next converted value is latched in ADATA where the APND flag is set to 1.
4
8
Vcc
A
B
Y
Sel
B
Voltage Level
Generator
+V
REF
COMPLEV
6
Sel
ACH2
ACH3
ACH4
ACH1
ACH5
AGND
Y
Analog Voltage
Generator
SAR
LOGIC
+V
AREF
C
8
Programmable
Delay
PWMOFF
DELTIME
F
RCLK2
G3/AIN1
G2/AIN2
G1/AIN3
ACHSEL[3:0]
+V
REF
Vcc
+V
AREF
REFSEL
G4/AIN0
+
-
S/H
ADSTROBE
A
Y
Sel
AGND
+V
REF
R
R
x16
GAIN
Autozero
Amplifier
_
2R
R
Vcc
ENIS
ACH5
Vcc/3
+
_
G6/-A
IN
+V
REF
0.23R
R
VLOOP
SR_GND
+
COMPSEL
G7/AIN4/A
OUT
+V
REF
ENAMP
ACH5
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