Datasheet
Table Of Contents
- Features
- Applications
- Functional Block Diagram
- General Description
- Revision History
- Specifications
- Absolute Maximum Ratings
- Pin Configuration and Function Descriptions
- Typical Performance Characteristics
- Test Circuits
- Theory of Operation
- Scratch Pad and EEMEM Programming
- Basic Operation
- EEMEM Protection
- Digital Input/Output Configuration
- Serial Data Interface
- Daisy-Chaining Operation
- Advanced Control Modes
- Using Additional Internal, Nonvolatile EEMEM
- Terminal Voltage Operating Range
- Detailed Potentiometer Operation
- Programming the Variable Resistor
- Programming the Potentiometer Divider
- Operation from Dual Supplies
- Application Programming Examples
- Equipment Customer Start-up Sequence for a PCB Calibrated Unit with Protected Settings
- Flash/EEMEM Reliability
- Evaluation Board
- Outline Dimensions

AD5232 Data Sheet
Rev. C | Page 6 of 24
Timing Diagrams
CPOL = 1
t
12
t
13
t
3
t
17
t
9
t
11
t
5
t
4
t
2
t
1
CLK
t
8
B16*
B15
(MSB)
B15
(MSB)
HIGH
OR LOW
HIGH
OR LOW
B15 B0
B0
(LSB)
B0
(LSB)
RDY
CPHA = 1
t
10
t
7
t
6
t
14
t
15
t
16
SDO
SDI
02618-002
CS
NOTES
1. B24 IS AN EXTRA BIT THAT IS NOT DEFINED, BUT IT IS USUALLY THE LSB OF THE CHARACTER THAT WAS PREVIOUSLY TRANSMITTED.
2. THE CPOL = 1 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
Figure 2. CPHA = 1
t
12
t
13
t
3
t
17
t
9
t
11
t
5
t
4
t
2
t
1
CLK
CPOL = 0
t
8
SDO
B15 B0
HIGH
OR LOW
HIGH
OR LOW
SDI
RDY
CPHA = 0
t
10
t
7
t
6
t
14
t
15
t
16
*
02618-003
CS
B15
(MSB IN)
B15
(MSB)
B0
(LSB)
B15
(MSB OUT)
B0
(LSB)
B0
(LSB)
NOTES
1. THIS EXTRA BIT IS NOT DEFINED, BUT IT IS USUALLY THE MSB OF THE CHARACTER THAT WAS JUST RECEIVED.
2. THE CPOL = 0 MICROCONTROLLER COMMAND ALIGNS THE INCOMING DATA TO THE POSITIVE EDGE OF THE CLOCK.
Figure 3. CPHA = 0