CS5529-AS Cirrus Logic Inc, CS5529-AS Datasheet - Page 23

• Manufacturer Part Number: CS5529-AS
• Description: A/D Converter (A-D) IC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5529-AS

• Peak Reflow Compatible (260 C): No
• Termination Type: SMD
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• No. Of Channels: 2
• Interface Type: Serial
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Power Supply Arrangements
The CS5529 is designed to operate from single or
dual analog supplies and a single digital supply.
The following power supply connections are possi-
ble:
DS246F1
±2.5 V Differential Inputs (Gain Register = 1.0)
±1.25 V Differential Inputs (Gain Register = 2.0)
±625 mV Differential Inputs (Gain Register = 4.0)
Logic Outputs:
A0, A1 Switch from VA+ to VA-
D0-D3 Switch from VD+ to DGND
±5 V Differential Inputs (Gain Register = 1.0)
±2.5 V Differential Inputs (Gain Register = 2.0)
±1.25 V Differential Inputs (Gain Register = 4.0)
Logic Outputs:
A0, A1 Switch from VA+ to VA-
D0-D3 Switch from VD+ to DGND
Analog
+2.5 V
Supply
Analog
Supply
-2.5 V
Analog
+5.0 V
Supply
Figure 10. CS5529 Configured with a +5.0 V Analog Supply.
Figure 11. CS5529 Configured with ±2.5 V Analog Supplies.
Common Mode = 0 to VA+
0.1 F
0.1 F
+
-
20
19
18
17
16
20
19
3
4
5
18
17
16
7
6
3
4
0.1 F
7
6
5
D3
D2
D1
D0
A1
A0
VREF+
VREF-
AIN+
AIN-
D3
D2
D1
D0
A1
A0
VREF+
VREF-
AIN+
AIN-
VA+
VA+ = +5 V; VA- = 0 V; VD+ = +3 V to +5 V
VA+ = +2.5 V; VA- = -2.5 V; VD+ = +3 V to +5 V.
Figure 10 illustrates the CS5529 connected with a
single +5 V supply to measure differential inputs
relative to a common mode of 2.5 V. Figure 11 il-
VA-
VA+
VA-
2
CS5529
1
2
CS5529
1
10
VD+
DGND
VD+
DGND
XOUT
SCLK
XOUT
SDO
SCLK
13
XIN
SDI
12
SDO
13
CS
XIN
SDI
12
CS
10
11
8
9
15
14
10
11
8
9
15
14
32.768 kHz ~ 100 kHz
32.768 kHz ~ 100 kHz
0.1 F
0.1 F
Optional Clock
+3 V ~ +5 V
Optional Clock
Interface
Interface
Serial
Data
Source
Serial
Data
Source
Supply
Digital
CS5529
23