MAX9268 datasheet(7/35 Pages) MAXIM

7 / 35 page

Gigabit Multimedia Serial Link Deserializer

with LVDS System Interface

_______________________________________________________________________________________ 7

Pin Description

Pin Configuration

9 10 11 12

33 32 31 30 29 28 27 26 25

36 35 34

AGND

AVDD

GND

IOVDD

CNTL2/MCLK

CNTL1

SD/CNTL0

SCK

PWDN

TX/SCL

RX/SDA

AGND

GND

IOVDD

ADD0

ADD1

LOCK

ERR

SSEN

DRS

AVDD

AGND

TOP VIEW

MAX9268

TQFP

NAME

FUNCTION

BWS

Bus-Width Select. Output width selection requires external pulldown or pullup resistor. Set

BWS = low for 3-channel mode. Set BWS = high for 4-channel mode.

INT

Interrupt Input. Requires external pulldown or pullup resistor. A transition on the MAX9268’s

INT input toggles the GMSL serializer’s INT output.

CDS

Control Direction Selection. Control link direction selection input requires external pulldown or

pullup resistor. Set CDS = low for FC on the GMSL serializer side of the serial link. Set CDS =

high for FC on the MAX9268 side of the serial link.

GPIO0

General-Purpose I/O 0. Open-drain, general-purpose input/output with internal 60kI (typ)

pullup resistor to IOVDD. GPIO0 is high impedance during power-up and when PWDN = low.

5, 23, 32, 47

AVDD

3.3V Analog Power Supply. Bypass AVDD to AGND with 0.1FF and 0.001FF capacitors as

close as possible to the device with the smaller capacitor closest to AVDD.

6, 7

IN+, IN-

Differential CML Input. Differential input of the serial link.

8, 24, 31, 37, 48

AGND

Analog Ground

EQS

Equalizer Select Input. EQS requires external pulldown or pullup resistor. The state of EQS

latches upon power-up or when resuming from power-down mode (PWDN = low). Set

EQS = low for 10.7dB equalizer boost (EQTUNE = 1001). Set EQS = high for 5.2dB

equalizer boost (EQTUNE = 0100).

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