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_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX9249

Gigabit Multimedia Serial Link

Serializer with LVDS System Interface

19-5138; Rev 4; 1/12

/V denotes an automotive qualified part.

+Denotes a lead(Pb)-free/RoHS-compliant package.

*EP = Exposed pad.

T = Tape and reel.

Ordering Information

General Description

The MAX9249 serializer with LVDS system interface

utilizes Maxim’s Gigabit multimedia serial link (GMSL)

technology. The MAX9249 serializer pairs with any

GMSL deserializer to form a complete digital serial link

for joint transmission of high-speed video, audio, and

control data.

The MAX9249 allows a maximum serial payload data rate

of 2.5Gbps for a 15m shielded twisted-pair (STP) cable.

The serializer operates up to a maximum clock rate of

104MHz (3-channel LVDS) or 78MHz (4-channel LVDS).

This serial link supports display panels from QVGA (320

x 240) to WXGA (1280 x 800) and higher with 24-bit color.

The 3-channel mode handles three lanes of LVDS data

(21 bits), UART control signals, and three audio signals.

The 4-channel mode handles four lanes of LVDS data

(28 bits), UART control signals, three audio signals,

and/or up to three auxiliary parallel inputs. The three

audio inputs form a standard I

S interface, supporting

sample rates from 8kHz to 192kHz and audio word

lengths of 4 to 32 bits. The embedded control chan-

nel forms a full-duplex, differential, 100kbps to 1Mbps

UART link between the serializer and deserializer. The

electronic control unit (ECU), or microcontroller (FC), can

be located on the MAX9249 side of the link (typical for

video display), on the deserializer side of the link (typi-

cal for image sensing), or on both sides. In addition, the

control channel enables ECU/FC control of peripherals

on the remote side, such as backlight control, grayscale

Gamma correction, camera module, and touch screen.

Base-mode communication with peripherals uses either

C or the GMSL UART format. A bypass mode enables

full-duplex communication using custom UART formats.

The MAX9249 serializer driver preemphasis, along with

the channel equalizer on the GMSL deserializer, extends

the link length and enhances the link reliability. Spread

spectrum is available on the MAX9249 to reduce EMI on

the serial link and the parallel output of the GMSL dese-

rializer. The serial output complies with ISO 10605 and

IEC 61000-4-2 ESD protection standards.

The core supply for the MAX9249 is 1.8V. The I/O supply

ranges from 1.8V to 3.3V. The MAX9249 is available in

a 48-pin TQFP package (7mm x 7mm) with an exposed

pad. Electrical performance is guaranteed over the

-40NC to +105NC automotive temperature range.

Features

S Pairs with Any GMSL Deserializer

S 2.5Gbps Payload Rate AC-Coupled Serial Link

with 8B/10B Line Coding

S Supports Up to WXGA (1280 x 800) with 24-Bit

Color

S 8.33MHz to 104MHz (3-Channel LVDS) or 6.25MHz

to 78MHz (4-Channel LVDS) Input Clock

S 4-Bit to 32-Bit Word Length, 8kHz to 192kHz I

Audio Channel Supports High-Definition Audio

S Embedded Half-/Full-Duplex Bidirectional Control

Channel (100kbps to 1Mbps)

S Interrupt Supports Touch-Screen Functions for

Display Panels

S Remote-End I

C Master for Peripherals

S Preemphasis Line Driver

S Programmable Spread Spectrum on the Serial

Outputs for Reduced EMI

S Automatic Data-Rate Detection Allows “On-the-

Fly” Data-Rate Change

S Input Clock PLL Jitter Attenuator

S Built-In PRBS Generator for BER Testing of the

Serial Link

S Line-Fault Detector Detects Serial Link Shorts to

Ground, Battery, or Open Link

S ISO 10605 and IEC 61000-4-2 ESD Protection

S -40NC to +105NC Operating Temperature Range

S 1.8V to 3.3V I/O, 1.8V Core, and 3.3V LVDS

Supplies

S Patent Pending

Applications

High-Resolution Automotive Navigation

Rear-Seat Infotainment

Megapixel Camera Systems

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX9249GCM/V+

-40NC to +105NC

48 TQFP-EP*

MAX9249GCM/V+T

-40NC to +105NC

48 TQFP-EP*

1 2 3 4 5 6 ... 35 36

Inhaltsverzeichnis

Seite 1 - AVAILABLE

_______________________________________________________________ Maxim Integrated Products 1For pricing, delivery, and ordering information, please

Seite 2 - ABSOLUTE MAXIMUM RATINGS

10 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 3

______________________________________________________________________________________ 11MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 4 - AC ELECTRICAL CHARACTERISTICS

12 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 5 - 30 f 40 f

______________________________________________________________________________________ 13MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 6

14 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 7 - *EXPOSED PAD

______________________________________________________________________________________ 15MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 8

16 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 9

______________________________________________________________________________________ 17MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 10 - Serial-Output Parameters

18 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 11 - RXIN0- TO RXIN3

______________________________________________________________________________________ 19MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 12 - C Timing Parameters

2 ______________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 13 - Figure 9. Serializer Delay

20 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 14 - S Timing Parameters

______________________________________________________________________________________ 21MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 15 - Register Mapping

22 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 16

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Seite 17

24 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 18 - Data-Rate Selection

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Seite 19 - Audio Channel

26 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 20 - Interrupt Control

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Seite 21

28 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 22

______________________________________________________________________________________ 29MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 23 - Spread Spectrum

_______________________________________________________________________________________ 3MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 24 - Sleep Mode

30 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 25 - Video-Display Applications

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Seite 26

32 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 27 - Self-PRBS Test

______________________________________________________________________________________ 33MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 28 - RXCLKIN_

34 _____________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 29 - Table 10. Line-Fault Mapping

______________________________________________________________________________________ 35MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 30 - ESD Protection

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

Seite 31

4 ______________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 32

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Seite 33

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Seite 34

_______________________________________________________________________________________ 7MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

Seite 35 - PROCESS: CMOS

8 ______________________________________________________________________________________MAX9249Gigabit Multimedia Serial Link Serializer with LVDS S

Seite 36

_______________________________________________________________________________________ 9MAX9249Gigabit Multimedia Serial LinkSerializer with LVDS Sy

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