Cirrus Logic CS5372A - Manual (Page 25)

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
8 17
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