|
DS3508
I²C, 8-Channel Gamma Buffer with EEPROM
Low-Power, Low-Cost LCD Gamma Generator with EEPROM
|
Status
Active: In Production.
Description
The DS3508 is a programmable 8-channel gamma voltage generator with one byte of on-chip EEPROM and one byte of SRAM memory per channel. Each channel is composed of an independent 8-bit DAC with an associated EEPROM/SRAM pair. At power-up, nonvolatile (NV) EEPROM gamma data is loaded into its corresponding SRAM register that drives the associated 8-bit DAC. An on-chip control register allows selectable control of writing to SRAM/EEPROM or SRAM only.
The DS3508 is designed for low-power operation and draws less than 2mA (typ) from the VDD supply. Programming occurs through an I²C-compatible serial interface with support for speeds up to 400kHz.
|
|
Data Sheet
|
Key Features
- 8-Bit Gamma DACs, 8 Channels
- 1 Byte EEPROM and 1 Byte SRAM per Channel
- Ultra-Low Power (2mA IDD, typ)
- 400kbps I²C Interface
- 9.0V to 15.5V Analog Supply
- 2.7V to 5.5V Digital Supply
- 20-Pin TSSOP Package
- Address Pin Allows Two DS3508s to Reside on the Same I²C Bus
|
|
Applications/Uses
- Industrial Controls
- TFT-LCD Gamma Buffer
|
|
|
|
Key Specifications:
| Programmable Gamma Buffers |
| Part Number |
Total Channels |
Programmable Channels |
Resolution
(bits) |
Integrated Nonvolatile Memory |
VCOM Calibrator |
VCOM Buffer |
Interface |
VSUPPLY
(V) |
IQ
(mA) |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Budgetary Price |
| max w/pins |
See Notes |
| DS3508 |
8 |
8 |
8 |
Yes |
No |
No |
I2C |
9 to 15.5 |
4 |
-45 to +95 |
|
45.2 |
$0.95 @1k |
|
See All Programmable Gamma Buffers (20)
|
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|
|
Diagram
Typical Operating Circuit
Didn't Find What You Need?
Information Index
Rev 1;
2008-03-31
This page last modified: 2009-07-31
|
Download
E-Mail