CS3301A
3.
PIN DESCRIPTION
Positive Analog Power Supply
Negative Analog Rough Output
Negative Analog Fine Output
Negative Analog Power Supply
Non-Inverting Input A
Inverting Input A
Inverting Input B
Non-Inverting Input B
Test Mode Output
Positive Analog Fine Output
Positive Analog Rough Output
Test Mode Select
VA+
OUTR-
OUTF-
VA-
INA+
INA-
INB-
INB+
TESTOUT
OUTF+
OUTR+
TEST0
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
MUX0
MUX1
GAIN0
GAIN1
GAIN2
PWDN
GND
TEST1
VD
GND
TEST2
CLK
Input Mux Select
Input Mux Select
Gain Range Select
Gain Range Select
Gain Range Select
Power Down Mode Enable
Ground
Test Mode Select
Positive Digital Power Supply
Ground
Test Mode Select
Clock Input
Figure 6. CS3301A Pin Assignments
Pin Name
VA+
VA-
VD
GND
INA+, INA-
INB+, INB-
OUTR+, OUTR-
OUTF+, OUTF-
GAIN0, GAIN1,
GAIN2
CLK
PWDN
MUX0, MUX1
TEST0
TEST1, TEST2
TESTOUT
Pin #
1
4
16
15, 18
5, 6
8, 7
11, 2
10, 3
22, 21,
20
13
19
24, 23
12
17, 14
9
I/O
I
I
I
I
I
I
O
O
I
I
I
I
I
I
O
Pin Description
Positive analog supply voltage.
Negative analog supply voltage.
Positive digital supply voltage.
Ground.
Channel A differential analog inputs. Selected via MUX pins.
Channel B differential analog inputs. Selected via MUX pins.
Rough charge differential analog outputs.
Fine charge differential analog outputs.
Gain range select. See Gain Selection table in Digital Characteristics section.
Master clock input. Connect to GND to use internal oscillator.
Power down mode enable. Active high.
Analog input select. See Input Selection table in Digital Characteristics section.
Test mode select, factory use only. Connect to VA- during normal operation.
Test mode select, factory use only. Connect to GND during normal operation.
Test mode output, factory use only. No connect during normal operation.
Table 2. Pin Descriptions
DS757F1
13
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