CS4373 Cirrus Logic, CS4373 Datasheet - Page 17

• Manufacturer Part Number: CS4373
• Description: High-performance Delta-Sigma Test DAC
• Manufacturer: Cirrus Logic

11.PIN DESCRIPTION
DS577F1
Pin Name
CAP+, CAP-
BUF+, BUF-
OUT+, OUT-
VA+, VA-
VREF-,
VREF+
SYNC
MCLK
DGND
VD
LPWR
TDATA
Negative High Precision Output
Negative Analog Power Supply
Positive High Precision Output
Positive Analog Power Supply
Negative Voltage Reference
Positive Voltage Reference
Negative Capacitor Output
Positive Capacitor Output
Negative Buffered Output
Positive Buffered Output
Pin # I/O
9, 10
1, 2
3, 4
5, 6
7, 8
17
18
19
20
28
24
O External Capacitor Connection for Test DAC anti-alias filter
O Buffered Output from the Test DAC
O High precision output from the Test DAC
I
I
I
I
I
I
I
I
Power supply for the analog section. Refer to the Recommended Operating Conditions for appropri-
ate voltages.
Voltage reference for the internal sampling circuits. Refer to the Recommended Operating Condi-
tions for appropriate voltages.
Clock Sync Input - A low to high transition resets the internal clock phasing of the DAC.
Master Clock Input - a CMOS compatible clock input for the DAC internal master clock.
Digital Ground - Ground reference for the digital section.
Power supply for the digital section. Refer to the Recommended Operating Conditions for appropri-
ate voltages.
Low Power Mode Select - When set high the CS4373 enters into a Low Power Mode. (See Section
Section 9, "Power Modes" on page 15
Test DAC Signal Bitstream Input.
No Connect
No Connect
No Connect
No Connect
VREF+
VREF-
CAP+
BUF+
OUT+
CAP-
BUF-
OUT-
VA+
VA-
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
for more on Power Modes)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Pin Description
LPWR
MODE0
MODE1
MODE2
ATT0
ATT1
ATT2
TDATA
VD
DGND
MCLK
SYNC
DNC
DNC
Low Power Mode Enable
Mode Select
Mode Select
Mode Select
Attenuation Range Select
Attenuation Range Select
Attenuation Range Select
Signal Bitstream Input
Positive Digital Power Supply
Digital Ground
Master Clock Input
Clock Sync Input
Do Not Connect
Do Not Connect
CS4373
17