MAX8738EUA+ Maxim Integrated Products, MAX8738EUA+ Datasheet - Page 12

• Manufacturer Part Number: MAX8738EUA+
• Description: IC CALIBR TFT VCOM 8UMAX
• Manufacturer: Maxim Integrated Products
• Type: Video Filterr

Specifications of MAX8738EUA+

• Applications: LCD Display
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Maximum Clock Frequency: 100 KHz
• Operating Supply Voltage: 4.5 V to 20 V
• Maximum Power Dissipation: 362 mW
• Maximum Operating Temperature: + 85 C
• Maximum Supply Current: 60 uA
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

A complete command consists of a START condition
(S) followed by the MAX8738’s slave address (5Eh) and
a command byte, or a command byte and a DAC
value, followed by a STOP condition (P). There are five
commands, and their functions are listed in Table 1.
Table 2 lists the DAC values and the corresponding
I
Use the following guidelines for good layout:
1) Place the VCOM buffer and the R1/R2 voltage-
2) Place R
Calibrator with I
Table 1. Command Byte Functions
Figure 8. I
12
SET
EEPROM-Programmable TFT VCOM
BYTE
AAh
00h
FFh
55h
11h
divider close to the OUT pin (Figure 2).
(B) FOR THE DAC INITIAL VALUE-SETTING COMMAND
(A) FOR THE 00H, FFH, AAH, AND 55H COMMANDS
START
START
, V
______________________________________________________________________________________
S
S
SET
2
Decrement the DAC setting by 1 LSB
Increment the DAC setting by 1 LSB
Write the current DAC setting to EEPROM
Load the EEPROM setting to the DAC
Write a specific value to the DAC
C Bus Data Transfer Summary
, and V
SET
close to SET.
SLAVE ADDRESS
OUT
SLAVE ADDRESS
values.
FUNCTION
Layout Information
ACK
ACK
Command Byte
2
C Interface
DAC Values
FIGURE
SET DAC VALUE (11H)
8A
8A
8A
8A
8B
COMMAND BYTE
3) Bypass V
4) Refer to the MAX8738 evaluation kit for an example
TRANSISTOR COUNT: 6198
PROCESS: BiCMOS
Table 2. DAC Settings
DAC VALUE
placed close to the IC with short connections to the
pins.
of proper board layout.
FFh
FEh
01h
00h
.
.
.
ACK
ACK
DD
STOP
I
I
I
SET(MAX)
SET(MIN)
I
P
SET(MAX)
SET(MIN)
and AVDD with 0.1µF capacitors
1 LSB
1 LSB
I
SET
.
.
.
+
-
DAC VALUE
Chip Information
V
V
V
V
V
SET(MAX)
SET(MIN)
SET(MAX)
SET(MIN)
SET
1 LSB
1 LSB
.
.
.
(V)
+
-
V
ACK
V
V
OUT
1 LSB
1 LSB
V
V
MIN
MAX
MAX
MIN
STOP
.
.
.
P
(V)
+
-