MXB7846 Просмотр технического описания (PDF) - Maxim Integrated

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производитель

MXB7846

2.375V to 5.25V, 4-Wire Touch-Screen Controller with Internal Reference and Temperature Sensor

Maxim Integrated 

2.375V to 5.25V, 4-Wire Touch-Screen Controller

with Internal Reference and Temperature Sensor

Differential Nonlinearity

Differential nonlinearity (DNL) is the difference between

an actual step width and the ideal value of 1LSB. A

DNL error specification of less than 1LSB guarantees

no missing codes and a monotonic transfer function.

Aperture Jitter

Aperture jitter (tAJ) is the sample-to-sample variation in

the time between the samples.

Aperture Delay

Aperture delay (tAD) is the time defined between the

falling edge of the sampling clock and the instant when

an actual sample is taken.

Chip Information

TRANSISTOR COUNT: 12,000

PROCESS: 0.6µm BiCMOS

1μF TO 10μF

OPTIONAL

2.375V TO 5.5V

0.1μF

TOUCH

SCREEN

TO BATTERY

AUXILIARY

INPUT

VOLTAGE

REGULATOR

Typical Application Circuit

1 +VDD

2 X+

3 Y+

4 X- MXB7846

DCLK 16

CS 15

DIN 14

BUSY 13

5 Y-

DOUT 12

6 GND

PENIRQ 11

7 BAT

8 AUX

+VDD 10

REF 9

0.1μF

SERIAL/CONVERSION CLOCK

CHIP SELECT

SERIAL DATA IN

CONVERTER STATUS

SERIAL DATA OUT

PEN INTERRUPT

50kΩ

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