MAX9249GCM/V+T Maxim Integrated Products, MAX9249GCM/V+T Datasheet - Page 16

• Manufacturer Part Number: MAX9249GCM/V+T
• Description: IC SERIALIZER GMSL LVDS 48TQFP
• Manufacturer: Maxim Integrated Products

Specifications of MAX9249GCM/V+T

• Function: Serializer
• Data Rate: 2.5Gbs
• Input Type: LVDS
• Output Type: Serial
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Outputs: -
• Number Of Inputs: -

Gigabit Multimedia Serial Link
Serializer with LVDS System Interface
The LVDS input has two selectable widths, 3-channel
and 4-channel. The MAX9249 accepts the VESA stan-
dard panel 3- or 4-channel LVDS (Table 2). Inputs on the
MAX9249 are mapped internally, according to Figures 13
and 14. In 3-channel mode, RXIN3_ and CNTL1/CNTL2
are not available. For both modes, the SD/CNTL0, SCK,
and WS pins are for I
clock rates from 8.33MHz to 104MHz for 3-channel mode
and 6.25MHz to 78MHz for 4-channel mode.
Table 1. Power-Up Default Register Map (see Table 12) (continued)
16
REGISTER
ADDRESS
_____________________________________________________________________________________
(HEX)
0x0C
0x0D
0x1E
0x04
0x05
0x06
0x07
0x08
0x1F
VESA Standard Panel Bitmapping
0x83 or 0x93
POWER-UP
0x03, 0x13,
(read only)
(read only)
(read only)
DEFAULT
(HEX)
0x70
0x40
0x22
0x0A
0x70
0x0F
0x03
0x0X
2
S audio. The MAX9249 accepts
and Bus-Width Selection
SEREN = 0 (AUTOS = high), SEREN = 1 (AUTOS = low), serial link enable default depends
on AUTOS pin state at power-up
CLINKEN = 0, configuration link disabled
PRBSEN = 0, PRBS test disabled
SLEEP = 0 or 1, sleep-mode state depends on CDS and AUTOS pin state at power-up (see
the Link Startup Procedure section)
INTTYPE = 00, base mode uses I
REVCCEN = 1, reverse control channel active (receiving)
FWDCCEN = 1, forward control channel active (sending)
I2CMETHOD = 0, I
DISFPLL = 1, filter PLL disabled
CMLLVL = 11, 400mV CML signal level
PREEMP = 0000, preemphasis off
RESERVED = 01000000
RESERVED = 00100010
RESERVED = 0000
LFNEG = 10, no faults detected
LFPOS = 10, no faults detected
RESERVED = 01110000
SETINT = 0, interrupt output set to low
RESERVED = 00
DISRES = 0, RES mapped to DIN27
SKEWADJ = 1111, no X7PLL clock skew adjustment
ID = 00000011, device ID is 0x03
RESERVED = 0000
REVISION = XXXX, revision number
2
C packets include register address
POWER-UP DEFAULT SETTINGS
The MAX9249 high-speed data serial output uses
CML signaling with programmable preemphasis and
AC-coupling. The GMSL deserializer uses AC-coupling
and programmable channel equalization. When using
both the preemphasis and equalization, the MAX9249/
GMSL deserializer can operate up to 3.125Gbps over
STP cable lengths to 15m or more.
The MAX9249 serializer scrambles and encodes the
LVDS input data and sends the 8B/10B coded signal
through the serial link. The GMSL deserializer recovers
2
C
(MSB FIRST)
Serial Link Signaling and Data Format