LM2506 Low Power Mobile Pixel Link (MPL) Level 0, 18-bit RGB Display Interface Serializer and
Deserializer
August 2006
LM2506
Low Power Mobile Pixel Link (MPL) Level 0, 18-bit RGB
Display Interface Serializer and Deserializer
General Description
The LM2506 device adapts RGB style display interfaces to
the Mobile Pixel Link (MPL) Level zero serial link. The
LM2506 supports one RGB display at up to 18-bit color
depth and 800 X 300 pixels (over 216 Mbps and 13.2 MHz
PCLK) is supported. A mode pin configures the device as a
Serializer (SER) or Deserializer (DES) so the same chip can
be used on both sides of the interface.
The interconnect is reduced from 22 signals to only 3 active
signals with the LM2506 chipset easing flex interconnect
design, size constraints and cost.
The LM2506 in SER mode resides beside an application,
graphics or baseband processor and translates a parallel
bus from LVCMOS levels to serial Mobile Pixel Link levels for
transmission over a flex cable (or coax) and PCB traces to
the DES located near the display module.
When the Power_Down (PD*) input is asserted on the SER,
the MDn and MC line drivers are powered down to save
current. The DES can be controlled by a separate Power-
_Down input or via a signal from the SER (PD
OUT*
).
The LM2506 implements the physical layer of the MPL Level
0 Standard (MPL-0) and a 150 碌A I
B
current (Class 0).
Features
n
RGB Display Interface support up to
800 x 300
1
鈦?/div>
2
SVGA formats
n
MPL-Level 0 Physical Layer using two data and one
clock signal
n
Low Power Consumption
n
Pinout mirroring enables straight through layout with
minimal vias
n
Level translation between host and display
n
Auto Power Down on STOP PCLK
n
Link power down mode reduces quiescent power
under
<
10 碌A
n
1.74V to 2.0V core / analog supply voltage range
n
1.74V to 3.0V I/O supply voltage range
n
鈭?0C to 85C Operating temperature range
System Benefits
n
n
n
n
Small Interface
Low Power
Low EMI
Intrinsic Level Translation
Typical Application Diagram - Bridge Chips
20125522
漏 2006 National Semiconductor Corporation
DS201255
www.national.com
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