CS5530-ISZR Cirrus Logic Inc, CS5530-ISZR Datasheet - Page 32

• Manufacturer Part Number: CS5530-ISZR
• Description: IC 24-Bit 1-ch Low Noise ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CS5530-ISZR

• Number Of Bits: 24
• Sampling Rate (per Second): 3.84k
• Data Interface: Serial
• Number Of Converters: 1
• Power Dissipation (max): 45mW
• Voltage Supply Source: Analog and Digital, Dual ±
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1158 - BOARD EVAL FOR CS5530
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3. PIN DESCRIPTIONS
Clock Generator
OSC1; OSC2 – Master Clock
Control Pins and Serial Data I/O
CS – Chip Select
SDI – Serial Data Input
SDO – Serial Data Output
SCLK – Serial Clock Input
A0 – Logic Output (Analog), A1 – Logic Output (Analog)
32
AMPLIFIER CAPACITOR CONNECT
AMPLIFIER CAPACITOR CONNECT
DIFFERENTIAL ANALOG INPUT
An inverting amplifier inside the chip is connected between these pins and can be used with a
crystal to provide the master clock for the device. Alternatively, an external (CMOS compatible)
clock (powered relative to VD+) can be supplied into the OSC2 pin to provide the master clock
for the device.
When active low, the port will recognize SCLK. When high the SDO pin will output a high
impedance state. CS should be changed when SCLK = 0.
SDI is the input pin of the serial input port. Data will be input at a rate determined by SCLK.
A clock signal on this pin determines the input/output rate of the data for the SDI/SDO pins
respectively. This input is a Schmitt trigger to allow for slow rise time signals. The SCLK pin
will recognize clocks only when CS is low.
The logic states of A1-A0 mimic the A1-A0 bits in the Configuration Register. Logic
Output 0 = VA-, and Logic Output 1 = VA+.
DIFFERENTIAL ANALOG INPUT
SDO is the serial data output. It will output a high impedance state if CS = 1.
NEGATIVE ANALOG POWER
POSITIVE ANALOG POWER
LOGIC OUTPUT (ANALOG)
LOGIC OUTPUT (ANALOG)
MASTER CLOCK
MASTER CLOCK
AIN1+
OSC2
OSC1
AIN1-
VA+
VA-
C1
C2
A0
A1
1
2
3
4
5
6
7
8
9
10
CS5530
20
19
18
17
16
15
14
13
12
11
NC
VREF+
VREF-
DGND
VD+
CS
SDI
SDO
SCLK
NC
VOLTAGE REFERENCE INPUT
VOLTAGE REFERENCE INPUT
DIGITAL GROUND
POSITIVE DIGITAL POWER
CHIP SELECT
SERIAL DATA INPUT
SERIAL DATA OUT
SERIAL CLOCK INPUT
CS5530
DS742F3