MAX9268 datasheet(9/35 Pages) MAXIM

9 / 35 page

Gigabit Multimedia Serial Link Deserializer

with LVDS System Interface

_______________________________________________________________________________________ 9

Pin Description (continued)

Functional Diagram

PARALLEL

TO LVDS

VIDEO

FIFO

AUDIO

RGB[17:0]

RGB

CNTL1/RES

8b/10b

DECODE/

UNSCRAMBLE

SERIAL

PARALLEL

REVERSE CONTROL

CHANNEL

UART/I2C

CNTL2

FCC

ACB

RGB[23:18] (4-CH)

RES/CNTL1

(4-CH)

TXOUT0+/-

TXCLKOUT+/-

IN+

IN-

TXOUT1+/-

TXOUT2+/-

TXOUT3+/-

CNTL1

(4-CH)

CNTL2/MCLK

(4-CH)

SD/CNTL0

TX/SCL

RX/SDA

SCK

MAX9268

Rx/EQ

7x PLL

SSPLL

CLK

DIV

CDR

PLL

NAME

FUNCTION

Mode Select. Control link mode-selection input requires an external pulldown or pullup resis-

tor. Set MS = low to select base mode. Set MS = high to select bypass mode.

SSEN

Spread-Spectrum Enable. Serial link spread-spectrum enable input requires an external pull-

down or pullup resistor. The state of SSEN latches upon power-up or when resuming from

power-down mode (PWDN = low). Set SSEN = high for Q2% spread spectrum on the LVDS

and control outputs. Set SSEN = low to use the LVDS and control outputs without spread

spectrum.

DRS

Data-Rate Select. Data-rate range-selection input requires an external pulldown or pullup resistor.

The state of DRS latches upon power-up or when resuming from power-down mode (PWDN =

low). Set DRS = high for TXCLKOUT_ frequencies of 8.33MHz to 16.66MHz (3-channel mode), or

6.25MHz to 12.5MHz (4-channel mode). Set DRS = low for TXCLKOUT_ frequencies of 16.66MHz

to 104MHz (3-channel mode), or 12.5MHz to 78MHz (4-channel mode).

—

Exposed Pad. EP internally connected to AGND. MUST externally connect EP to the plane

supplying AGND for proper thermal and electrical performance.

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