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CS5371A CS5372A
DS748F3
25
9. PIN DESCRIPTION - CS5371A
Power Supplies
VA+ _ Positive Analog Power Supply, pin 8
VA- _ Negative Analog Power Supply, pin 7
VD _ Positive Digital Power Supply, pin 13, 18
GND _ Ground, pin 17, 23
Analog Inputs
INR+ _ Rough Non-Inverting Input, pin 1
Rough non-inverting analog input. The rough input settles non-linear currents to improve
linearity on the fine input and reduce harmonic distortion.
INF+ _ Fine Non-Inverting Input, pin 2
Fine non-inverting analog input.
INF- _ Fine Inverting Input, pin 3
Fine inverting analog input.
INR- _ Rough Inverting Input, pin 4
Rough inverting analog input. The rough input settles non-linear currents to improve linearity
on the fine input and reduce harmonic distortion.
1
2
3
4
5
6
7
817
18
19
20
21
22
23
24
9
10
11
12
13
14
15
16
Rough Non-Inverting Input
INR+
Fine Non-Inverting Input
INF+
Fine Inverting Input
INF-
Rough Inverting Input
INR-
Positive Voltage Reference Input
VREF+
Negative Voltage Reference Input
VREF-
Negative Analog Power Supply
VA-
Positive Analog Power Supply
VA+
No Internal Connection
NC
No Internal Connection
NC
No Internal Connection
NC
No Internal Connection
NC
PWDN
Power-down Enable
GND
Digital Ground
MFLAG
Modulator Flag Output
MDATA
Modulator Data Output
MSYNC
Modulator Sync Input
MCLK
Modulator Clock Input
VD
Positive Digital Power Supply
GND
Digital Ground
NC
No Internal Connection
NC
No Internal Connection
OFST
Offset Mode Select
VD
Positive Digital Power Supply