Figure 3-2. analog function block diagram, Figure 3-2, Analog function block diagram -2 – National Instruments PCI-4452 User Manual
Page 19: Adc0, Adc1, Adc2, Adc3, Da c0, Da c1
Chapter 3
Hardware Overview
PCI-4451/4452 User Manual
3-2
©
National Instruments Corporation
Figure 3-2. Analog Function Block Diagram
A
C/DC
Coupling
MUX0
INPUT/CAL
MUX0
0 dB/20 dB
A
TTEN
MUX0
A
C/DC
Coupling
MUX1
INPUT/CAL
MUX1
0 dB/20 dB
A
TTEN
MUX1
ENABLE1
Analog Bus
Analog Mezzanine Bus (to Digital Section)
Ser
ial Data Manager
DIFF
Gain
AMP
ADC0
DIFF
Gain
AMP
ADC1
DIFF
Gain
AMP
ADC2
†
A
C/DC
Coupling
MUX2
INPUT/CAL
MUX2
0 dB/20 dB
A
TTEN
MUX2
DIFF
Gain
AMP
ADC3
†
A
C/DC
Coupling
MUX3
INPUT/CAL
MUX3
0 dB/20 dB
A
TTEN
MUX3
Analog
Ov
err
ange
Detect
Gain/Offset
Calibr
ation
A
C/DC
MUX
Control
INPUT/CAL
MUX
Control
A
TTEN
MUX
Control
Gain
Control
ADC Control
ADC Cloc
k
Manager
D
A
C Control
Atten
uation
Control
Output
Enab
le
DIFF
A
TTEN
AMP
D
A
C0
††
ENABLE0
Analog Bus
DIFF
A
TTEN
AMP
D
A
C1
††
Gain/Offset
Calibr
ation
Gener
al Control
Digital
Ov
err
ange
Detect
D
A
C Cloc
k
Manager
EEPR
OM
†
PCI-4452 only
††
PCI-4451 only
LP
Filter
LP
Filter
LP
Filter
LP
Filter
T
rigger
Control
User.book Page 2 Tuesday, April 14, 1998 10:20 AM