Low-Cost VCOM Calibrator with Anti-Image-Stick Features
| Status |
| Active: In Production. |
| Description |
|
The DS3503 features two synchronized stepping digital potentiometers: one 7-bit potentiometer with RW as its output, and another potentiometer with Y as its output. Both potentiometers reference the RH and RL terminals and feature an output voltage range of up to 15.5V. In addition, both potentiometer outputs can be stepped up and down by configuring the control registers. Programming is accomplished by an I²C-compatible interface that can operate at speeds of up to 400kHz. |
| Key Features |
|
Applications/Uses |
- 128 Wiper Tap Points
- Full-Scale Resistance: 5kΩ
- Programmable Logic Lets WR Step Up and Down with Timing Controlled by SYNC Input
- Second Potentiometer Output Pin (Y) Centered at Position 40h
- I²C-Compatible Serial Interface
- Digital Operating Voltage: 2.7V to 3.6V
- Analog Operating Voltage: 4.5V to 15.5V
- Operating Temperature: -40°C to +100°C
- 10-Pin µSOP Package
|
|
- Instrumentation and Industrial Controls
- Mechanical Potentiometer Replacement
- TFT-LCD VCOM Calibration
|
| Key Specifications: Multifunction PMICs |
| Part Number |
Primary Topology |
Monitor/Control Features |
LCD/LED/Flash/CCD Features |
Interface Type |
VIN
(V) |
VIN
(V) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Price |
| min |
max |
max w/pins |
See Notes |
| DS3503 |
Amplifier/Buffer |
Dynamic V Adj. |
VCOM Buffer |
GPIO |
2.7 |
5.5 |
|
15.4 |
$0.55 @1k |
| See All Multifunction PMICs (83) |
| Key Specifications: VCOM Amplifiers and Panel Repair |
| Part Number |
Channels |
Peak Current
(mA) |
Resolution
(bits) |
Rail to Rail |
BW
(MHz) |
Features |
Programmable |
VSUPPLY
(V) |
Oper. Temp.
(°C) |
Package/Pins |
Smallest Available Pckg.
(mm2) |
Price |
| max w/pins |
See Notes |
| DS3503 |
2 |
3 |
7 |
Input/Output |
1 |
| Non Volatile Settings |
| Stepper Potentiometer | |
Yes |
4.5 to 15.5 |
|
|
15.4 |
$0.55 @1k |
| See All VCOM Amplifiers and Panel Repair (7) |
| Diagram |
Typical Operating Circuit |
source：ShenZhen henlito electronic co.,ltd.
web:www.henlito.com
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