mxb7846 Maxim Integrated Products, Inc., mxb7846 Datasheet - Page 21

• Manufacturer Part Number: mxb7846
• Description: Mxb7846 2.375v To 5.25v, 4-wire Touch-screen Controller With Internal Reference And Temperature Sensor
• Manufacturer: Maxim Integrated Products, Inc.

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 (t
the time between the samples.
with Internal Reference and Temperature Sensor
2.375V to 5.25V, 4-Wire Touch-Screen Controller
AJ
) is the sample-to-sample variation in
______________________________________________________________________________________
1µF TO 10µF
OPTIONAL
TOUCH
SCREEN
Differential Nonlinearity
REGULATOR
VOLTAGE
2.375V TO 5.5V
TO BATTERY
AUXILIARY
INPUT
Aperture Jitter
0.1µF
1
2
6
3
4
5
7
8
+V
X+
Y+
X-
Y-
GND
BAT
AUX
DD
MXB7846
Aperture delay (t
falling edge of the sampling clock and the instant when
an actual sample is taken.
TRANSISTOR COUNT: 12,000
PROCESS: 0.6µm BiCMOS
PENIRQ
DCLK
BUSY
DOUT
+V
DIN
REF
CS
DD
16
15
14
13
12
11
10
9
Typical Application Circuit
0.1µF
AD
) is the time defined between the
50kΩ
Chip Information
SERIAL/CONVERSION CLOCK
CHIP SELECT
SERIAL DATA IN
CONVERTER STATUS
SERIAL DATA OUT
PEN INTERRUPT
Aperture Delay
21