LM2501

Mobile Pixel Link (MPL) Camera Interface Serializer and

Deserializer

General Description

The LM2501 device is a Serializer/Deserializer that adapts

existing video busses to Mobile Pixel Link (MPL). MPL is

intended to replace wide LVCMOS video interfaces inside

portable electronics equipment benefiting their cost, size,

EMI and power consumption.

By using the LM2501 SERDES chipset, the interconnect is

reduced from 12 active signals to only 3 active signals

providing a 75% reduction. This eases interconect and flex

design, size and cost.

Contained in a 24 lead Ultra Thin CSP Package, the Serial-

izer resides beside the video source (camera) and translates

the parallel bus from LVCMOS levels to serial MPL levels for

transmission over a flex cable to the Deserializer located by

the respective destination Video Input Port.

An extra clock transport is provided to deliver a clock signal

to the target. For example, from the main board to the flip

board where the camera module is located. Transmission of

the clock also benefits from MPL’s low power transmission

and low EMI.

The Power_Down (PD*) input controls the power state of the

MPL interface. When PD* is asserted, the MD, MC and WC

signals are powered down to save current and reduce power

dissipation.

Features

n

160 Mbps Raw Throughput

n

MPL-0 Meets MPL Physical Layer Specification

n

Configurable as a Serializer or Deserializer

n

Complete LVCMOS to MPL Translation

n

Serializes 8-bit Camera Interface

— 8-bit color data

— plus VSYNC and HSYNC bits

n

Link power down mode reduces quiescent power under

∼ 10 µA (actual TBD)

n

1.7V–3.1V and 2.9-3.1V Supply Voltage

n

Interfaces to 1.8V–3.0V Logic

n

Offered in a small 24L UCSP Package

— 3.5 mm X 4.5 mm

— 0.6 mm Max Height

System Benefits

n

Reduced Wire Interface

n

Low Power

n

Low EMI

n

Extra Clock Transport

n

Intrinsic Level Translation

Typical Application Diagram

20091601

Ordering Information

NSID

Package Type

Package ID

LM2501SL

24-Lead Ultra Thin CSP 3.5 X 4.5 X 0.6 mm

SLE24A

ADVANCE INFORMATION

June 2004

© 2004 National Semiconductor Corporation

DS200916

www.national.com