cs5520-bp Cirrus Logic, Inc., cs5520-bp Datasheet - Page 27

• Manufacturer Part Number: cs5520-bp
• Description: 16/20-bit Bridge Transducer A/d Converters
• Manufacturer: Cirrus Logic, Inc.

PIN DESCRIPTIONS
Power Supply Connections
VD+ - Positive Digital Power, PIN 20.
VD- - Negative Digital Power, PIN 21.
DGND - Digital Ground, PIN 19.
VA+ - Positive Analog Power, PIN 3.
VA- - Negative Analog Power, PIN 4.
AGND1, AGND2 - Analog Ground, PINS 5, 8.
Clock Generator
XIN; XOUT - Crystal In; Crystal Out, Pins 22, 23
DS74F1
DS74F2
Modulator Diff. Voltage Ref +
Modulator Diff. Voltage Ref -
Positive digital supply voltage. Nominally +5 volts.
Negative digital supply voltage. Nominally -5 volts.
Digital ground.
Positive analog supply voltage. Nominally +5 volts.
Negative analog supply voltage. Nominally -5 volts.
Analog ground.
An internal gate is connected to these pins enabling the use of either a crystal or a ceramic
resonator to provide the master clock for the device. Alternatively, an external (CMOS
compatible) clock can be input to the XIN pin as the master clock for the device.
Negative Analog Power
Positive Analog Power
Analog Ground One
Analog Ground Two
Voltage Ref In +
Voltage Ref In -
Bridge Excite 2
Bridge Excite 1
Analog In +
Analog In -
MDRV+
AGND1
AGND2
MDRV-
VREF+
VREF-
AIN+
AIN-
VA+
BX2
BX1
VA-
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
SMODE
XOUT
XIN
VD-
VD+
DGND
SOD
SID
SCLK
DRDY
CS
RST
Serial Interface Mode
Crystal Out
Crystal In
Negative Digital Power
Positive Digital Power
Digital Ground
Serial Output Data
Serial Input Data
Serial Clock Input
Data Ready
Chip Select
Reset
CS5516, CS5520
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