S3C2416X RISC MICROPROCESSOR
ADC AND TOUCH SCREEN INTERFACE
24-1
22
ADC & TOUCH SCREEN INTERFACE
1 OVERVIEW
The 12-bit CMOS ADC (Analog to Digital Converter) is a recycling type device with 10-channel analog inputs. It
converts the analog input signal into 12-bit binary digital codes at a maximum conversion rate of 1MSPS with
5MHz A/D converter clock. A/D converter operates with on-chip sample-and-hold function and power down
(standby) mode is supported.
Touch screen interface can controls input pads (XP, XM, YP and YM) to obtain X/Y-positions on the external
touch screen device. Touch Screen Interface contains three main blocks; these are touch screen pads control
logic, ADC interface logic and interrupt generation logic.
1.1 FEATURES
•
Resolution: 10-bit / 12-bit (controllable)
•
Differential Linearity Error:
±
2.0 LSB
•
Integral Linearity Error:
±
4.0 LSB
•
Maximum Conversion Rate: 1 MSPS
•
Low Power Consumption
•
Power Supply Voltage: 3.3V
•
Reference Voltage (VREF): 3.3V
•
On-chip Sample-and-hold Function
•
Normal Conversion Mode
•
Separate X/Y position conversion Mode
•
Auto (Sequential) X/Y Position Conversion Mode
•
Waiting for Interrupt Mode
Summary of Contents for S3C2416
Page 122: ...BUS MATRIX EBI S3C2416X RISC MICROPROCESSOR 3 4 NOTES ...
Page 204: ...DMA CONTROLLER S3C2416X RISC MICROPROCESSOR 8 18 NOTES ...
Page 284: ...WATCHDOG TIMER S3C2416X RISC MICROPROCESSOR 11 6 NOTES ...
Page 320: ...REAL TIME CLOCK S3C2416X RISC MICROPROCESSOR 13 16 NOTES ...
Page 344: ...UART S3C2416X RISC MICROPROCESSOR 14 24 NOTES ...
Page 380: ...USB2 0 DEVICE S3C2416X RISC MICROPROCESSOR 16 34 NOTES ...
Page 432: ...2D S3C2416X RISC MICROPROCESSOR 18 38 NOTES ...
Page 446: ...HS_SPI CONTROLLER S3C2416X RISC MICROPROCESSOR 19 14 NOTES ...
Page 604: ...S3C2416X RISC MICROPROCESSOR S3C2416X RISC MICROPROCESSOR 23 22 NOTES ...
Page 638: ...PCM AUDIO INTERFACE S3C2416X RISC MICROPROCESSOR 25 18 NOTES ...
Page 670: ...ELECTRICAL DATA S3C2416X RISC MICROPROCESSOR 26 32 NOTES ...