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CS5371A CS5372A
DS748F3
27
10. PIN DESCRIPTION - CS5372A
Power Supplies
VA+ _ Positive Analog Power Supply, pin 8
VA- _ Negative Analog Power Supply, pin 7
VD _ Positive Digital Power Supply, pin 18
GND _ Ground, pin 17, 23
Analog Inputs
INR1+, INR2+ _ Channel 1 & 2 Rough Non-Inverting Inputs, pin 1, 12
Rough non-inverting analog inputs. The rough inputs settle non-linear currents to improve
linearity on the fine inputs and reduce harmonic distortion.
INF1+, INF2+ _ Channel 1 & 2 Fine Non-Inverting Input, pin 2, 11
Fine non-inverting analog inputs.
INF1-, INF2- _ Channel 1 & 2 Fine Inverting Input, pin 3, 10
Fine inverting analog inputs.
INR1-, INR2- _ Channel 1 & 2 Rough Inverting Inputs, pin 4, 9
Rough inverting analog inputs. The rough inputs settle non-linear currents to improve linearity
on the fine inputs 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
Ch. 1 Rough Non-Inverting Input
INR1+
Ch. 1 Fine Non-Inverting Input
INF1+
Ch. 1 Fine Inverting Input
INF1-
Ch. 1 Rough Inverting Input
INR1-
Positive Voltage Reference Input
VREF+
Negative Voltage Reference Input
VREF-
Negative Analog Power Supply
VA-
Positive Analog Power Supply
VA+
Ch. 2 Rough Inverting Input
INR2-
Ch. 2 Fine Inverting Input
INF2-
Ch. 2 Fine Non-Inverting Input
INF2+
Ch. 2 Rough Non-Inverting Input
INR2+
PWDN1
Ch. 1 Power-down Enable
GND
Digital Ground
MFLAG1
Ch. 1 Modulator Flag Output
MDATA1
Ch. 1 Modulator Data Output
MSYNC
Modulator Sync Input
MCLK
Modulator Clock Input
VD
Positive Digital Power Supply
GND
Digital Ground
MDATA2
Ch. 2 Modulator Data Output
MFLAG2
Ch. 2 Modulator Flag Output
OFST
Offset Mode Select
PWDN2
Ch. 2 Power-down Enable