MAX9249GCM/V+ Maxim Integrated Products, MAX9249GCM/V+ Datasheet - Page 26

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

Specifications of MAX9249GCM/V+

• 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: -

Figure 23. State Diagram, CDS = Low (LCD Application)
Gigabit Multimedia Serial Link
Serializer with LVDS System Interface
Table 9. Startup Selection for Image-Sensing Applications (CDS = High)
After power-up or when PWDN transitions from low to
high for both the serializer and deserializer, the GMSL
deserializer starts up in sleep mode, and the MAX9249
stays in standby mode (does not send serial data). Use
the FC and program the MAX9249 to set SEREN = 1 to
establish a video link or CLINKEN = 1 to establish the
configuration link. After locking to a stable RXCLKIN_ (for
SEREN = 1) or the internal oscillator (for CLINKEN = 1),
the MAX9249 sends a wake-up signal to the deserializer.
The GMSL deserializer exits sleep mode after locking to
the serial data and sets SLEEP = 0. If after 8ms the dese-
rializer does not lock to the input serial data, the GMSL
deserializer goes back to sleep, and the internal sleep bit
remains set (SLEEP = 1).
26
CASE
_____________________________________________________________________________________
1
2
AUTOS PIN
SETTING
HIGH
LOW
PWDN = LOW OR
ALL STATES
POWER-OFF
(MAX9249)
POWER-UP VALUE
AUTOS
High
SEREN BIT
Low
1
0
AUTOS = LOW
PWDN = HIGH
OR POWER-OFF
POWER-DOWN
POWER-ON,
Case 2: Standby Start Mode
MAX9249 POWER-UP
Serialization enabled
Sleep mode
(SLEEP = 1)
RXCLKIN_ RUNNING
STATE
PWDN = HIGH,
AUTOS = LOW
LINK LOCKING
POWER-ON
SEREN = 1,
VIDEO
VIDEO LINK
UNLOCKED
VIDEO LINK
SEREN = 0, OR
NO RXCLKIN_
LOCKED
POWER-ON
GMSL DESERIALIZER
IDLE
POWER-UP STATE
(SLEEP = 0)
(SLEEP = 0)
Normal
Normal
After power-up or when PWDN transitions from low
to high, the remote device (GMSL deserializer) starts
up and tries to lock to an incoming serial signal with
sufficient power. The host side (MAX9249) is in standby
mode and does not try to establish a link. Use the FC and
program the MAX9249 to set SEREN = 1 (and apply a
stable RXCLKIN_) to establish a video link or CLINKEN
= 1 to establish the configuration link. In this case, the
GMSL deserializer ignores the short wake-up signal sent
from MAX9249.
CLINKEN = 0 OR
CLINKEN = 1
SEREN = 1
NO RXCLKIN_
SEREN = 0,
VIDEO LINK
OPERATING
CLINKEN = 0 OR
LINK STARTING
SEREN = 1
Autostart
MAX9249 is in sleep mode. Wake up the
MAX9249 through the control channel (FC
attached to the GMSL deserializer).
CONFIG
PRBSEN = 0
PRBSEN = 1
Case 3: Remote Side Autostart Mode
LINK STARTUP MODE
CONFIG LINK
CONFIG LINK
UNLOCKED
LOCKED
VIDEO LINK
PRBS TEST
CONFIG LINK
OPERATING
REGISTERS
PROGRAM