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參數(shù)資料
| 型號： | MAX9249GCM/V+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 18/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SERIALIZER GMSL LVDS 48TQFP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,000 |
| 功能： | 串行器 |
| 數(shù)據(jù)速率： | 2.5Gbs |
| 輸入類型： | LVDS |
| 輸出類型： | 串行 |
| 電源電壓： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-TQFN 裸露焊盤 |
| 供應商設備封裝： | 48-TQFP（7x7） |
| 包裝： | 帶卷 (TR) |
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______________________________________________________________________________________ 25
MAX9249
Gigabit Multimedia Serial Link
Serializer with LVDS System Interface
Table 8. Startup Selection for Video-Display Applications (CDS = Low)
setting its SLEEP = 1. The GMSL deserializer sleeps after
serial link inactivity or 8ms (whichever arrives first) after
setting its SLEEP = 1. See the Link Startup Procedure
section for details on waking up the device for different
F
C and starting conditions.
The FC side device cannot enter into sleep mode. If an
attempt is made to program the FC side device for sleep,
the SLEEP bit remains 0. Use the PWDN input pin to
bring the FC side device into a low-power state.
Configuration Link Mode
The MAX9249 includes a low-speed configuration link to
allow control-data connection between the two devices
in the absence of a valid clock input. In either display or
camera applications, the configuration link can be used
to program equalizer/preemphasis or other registers
before establishing the video link. An internal oscillator
provides RXCLKIN_ for establishing the serial configura-
tion link between the MAX9249 and GMSL deserializer.
Set CLINKEN = 1 on the MAX9249 to turn on the con-
figuration link. The configuration link remains active as
long as the video link has not been enabled. The video
link overrides the configuration link and attempts to lock
when SEREN = 1.
Link Startup Procedure
Table 8 lists four startup cases for video-display applica-
tions. Table 9 lists two startup cases for image-sensing
applications. In either video-display or image-sensing
applications, the control link is always available after the
high-speed data link or the configuration link is estab-
lished and the MAX9249/GMSL deserializer registers or
the peripherals are ready for programming.
Video-Display Applications
For the video-display application, with a remote display
unit, connect the FC to the serializer (MAX9249) and set
CDS = low for both the MAX9249 and GMSL deserializer.
Table 8 summarizes the four startup cases based on the
settings of AUTOS and MS.
Case 1: Autostart Mode
After power-up or when PWDN transitions from low to
high for both the serializer and deserializer, the serial
link establishes if a stable RXCLKIN_ is present. The
MAX9249 locks to RXCLKIN_ and sends the serial data
to the GMSL deserializer. The GMSL deserializer then
detects activity on the serial link and locks to the input
serial data.
CASE
AUTOS
(MAX9249)
MAX9249
POWER-UP
STATE
MS
(GMSL
DESERIALIZER)
GMSL
DESERIALIZER
POWER-UP STATE
LINK STARTUP MODE
1
Low
Serialization
enabled
Low
Normal
(SLEEP = 0)
Both devices power up with serial link active
(autostart)
2
High
Serialization
disabled
High
Sleep mode
(SLEEP = 1)
Serial link is disabled and the GMSL
deserializer powers up in sleep mode. Set
SEREN = 1 or CLINKEN = 1 in the MAX9249
to start the serial link and wake up the GMSL
deserializer.
3
High
Serialization
disabled
Low
Normal
(SLEEP = 0)
Both devices power up in normal mode with
the serial link disabled. Set SEREN = 1 or
CLINKEN = 1 in the MAX9249 to start the
serial link.
4
Low
Serialization
enabled
High
Sleep mode
(SLEEP = 1)
GMSL deserializer starts in sleep mode.
Link autostarts upon MAX9249 power-up.
Use this case when the GMSL deserializer
powers up before the MAX9249.
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