CS3301A Datasheet, PDF (13/16 Pages) Cirrus Logic – Low-noise, Programmable Gain, Differential Amplifier

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