DS3508E+ Maxim Integrated Products, DS3508E+ Datasheet - Page 9

• Manufacturer Part Number: DS3508E+
• Description: IC GAMMA BUFFER 8CH 20-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of DS3508E+

• Applications: TFT-LCD Panels: Gamma Buffer
• Number Of Circuits: 8
• Current - Supply: 2mA
• Current - Output / Channel: 6mA
• Voltage - Supply, Single/dual (±): 9 V ~ 15.5 V
• Mounting Type: Surface Mount
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 1. DAC Voltage/Data Relationship for Selected Codes
Figure 3. DS3508 Slave Address Byte
DATA (BINARY)
*THE SLAVE ADDRESS IS DETERMINED BY ADDRESS PIN A0.
0000 0000
0000 0001
0000 0010
0000 0011
0000 1111
0011 1111
0111 1111
1111 1101
1111 1110
1111 1111
MSB
I
1
2
C, 8-Channel Gamma Buffer with EEPROM
1
_______________________________________________________________________________________
SLAVE ADDRESS*
1
0
1
0
VHH + 127 x (VHM - VHH)/255
VHH + 253 x (VHM - VHH)/255
VHH + 254 x (VHM - VHH)/255
VHH + 15 x (VHM - VHH)/255
VHH + 63 x (VHM - VHH)/255
VHH + 1 x (VHM - VHH)/255
VHH + 2 x (VHM - VHH)/255
VHH + 3 x (VHM - VHH)/255
A0
READ/WRITE BIT
LSB
R/W
GM1–GM4
VHH
VHM
The slave address byte consists of a 7-bit slave
address plus a R/W bit (see Figure 3). The DS3508’s
slave address is determined by the state of the A0 pin.
This pin allows up to two devices to reside on the same
I
corresponding bit position in the slave address.
Conversely, connecting A0 to V
corresponding bit position. For example, the DS3508’s
slave address byte is E8h when A0 is grounded. I
communication is described in detail in the I
Interface Description section.
2
OUTPUT VOLTAGE
C bus. Connecting A0 to GND results in a 0 in the
Slave Address Byte and Address Pin
VLL + 127 x (VLM - VLL)/255
VLL + 253 x (VLM - VLL)/255
VLL + 254 x (VLM - VLL)/255
VLL + 15 x (VLM - VLL)/255
VLL + 63 x (VLM - VLL)/255
VLL + 2 x (VLM - VLL)/255
VLL + 3 x (VLM - VLL)/255
VLL+ 1 x (VLM - VLL)/255
GM5–GM8
VLM
VLL
CC
results in a 1 in the
2
C Serial
2
C
9