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Chrontel

CH7305A Datasheet Preview

CH7305A Datasheet

Single/Dual LVDS Transmitter

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Chrontel
CH7305A
CH7305A Single/Dual LVDS Transmitter
Features
• Single / Dual LVDS transmitter
• Supports pixel rate up to 165M pixels/sec
• Supports up to UXGA resolution (1600 x 1200)
• LVDS low jitter PLL
• LVDS 24-bit or 18-bit output
• 2D dither engine for 18-bit output
• Panel protection and power down sequencing
• Programmable power management
• Fully programmable through serial port
• Complete Windows and DOS driver support
• Variable voltage interface to graphics device
• Offered in a 64-pin LQFP package
General Description
The CH7305A is a Display Controller device, which
accepts a graphics data stream over one 12-bit wide
variable voltage (1.1V to 3.3V) port. The data stream
outputs through an LVDS transmitter to an LCD panel. A
maximum of 165M pixels per second can be output
through a single or dual LVDS link.
The LVDS transmitter supports 24-bit panels; it also
includes a programmable dither function for support of
18-bit panels. Data is encoded into commonly used
formats, including those detailed in the OpenLDI and the
SPWG specifications. Serialized data output on four or
eight differential channels.
XCLK,XCLK*
2
H,V, DE
3
D[11:0]
12
VREF
Clock,
Data,
Sync
Latch &
Demux
Color
Space
Conversion
LVDS PLL
Dither
Engine
LVDS
Encode /
Serialize
Serial Port Control and Misc. Functions
LVDS
Transmit
6
2
2
6
2
LDC[3:0],LDC*[3:0]
LL1C,LL1C*
ENAVDD, ENABKL
LDC[7:4],LDC*[7:4]
LL2C, LL2C*
XTAL
XI/FIN,XO
2
Figure 1: Functional Block Diagram
201-0000-054 Rev. 1.4, 1/7/2014
1




Chrontel

CH7305A Datasheet Preview

CH7305A Datasheet

Single/Dual LVDS Transmitter

No Preview Available !

CHRONTEL
CH7305A
Table of Contents
1.0 Pin Assignment.....................................................................................................................................................5
1.1 Package Diagram ..............................................................................................................................................5
1.2 Pin Description .................................................................................................................................................6
2.0 Functional Description........................................................................................................................................10
2.1 Input Data Formats .........................................................................................................................................10
2.2 LVDS-Out ......................................................................................................................................................15
2.3 Power Down ...................................................................................................................................................19
3.0 Register Control..................................................................................................................................................20
3.1 Control Registers Index ..................................................................................................................................20
3.2 Control Registers Description.........................................................................................................................23
3.3 Control Registers Description.........................................................................................................................23
3.4 Recommended Settings...................................................................................................................................34
4.0 Electrical Specifications .....................................................................................................................................35
4.1 Absolute Maximum Ratings ...........................................................................................................................35
4.2 Recommended Operating Conditions .............................................................................................................35
4.3 Electrical Characteristics ................................................................................................................................35
4.4 Digital Inputs / Outputs...................................................................................................................................36
4.5 AC Specifications ...........................................................................................................................................36
4.6 LVDS Output Specifications ..........................................................................................................................37
4.7 Timing Information ........................................................................................................................................38
5.0 Package Dimensions ...........................................................................................................................................40
6.0 Revision History .................................................................................................................................................41
1.0 Pin Assignment
Disclaimer: The information contained in this document is preliminary and subject to change without notice.
Chrontel Inc. bears no responsibility for any errors in this document. Please contact Chrontel Inc. for design reviews
prior to finalize your design.
1.1 Package Diagram
2 201-0000-054 Rev. 1.4, 1/7/2014


Part Number CH7305A
Description Single/Dual LVDS Transmitter
Maker Chrontel
Total Page 30 Pages
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