參數(shù)資料
型號(hào)： MAX9258GCM/V+
廠商： Maxim Integrated Products
文件頁數(shù)： 11/52頁
文件大小： 0K
描述： IC SER/DESER PROG 48-LQFP
其它有關(guān)文件： Automotive Product Guide
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 250
功能： 串行器/解串器
數(shù)據(jù)速率： 840Mbps
輸入類型： 串行
輸出類型： LVDS
輸入數(shù)： 1
輸出數(shù)： 16
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-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 托盤
parity encoding that adds two parity bits to the serial
word. Bit 0 (EN0) is the LSB that is serialized first with-
out parity enabled. The parity bits are serialized first
when parity is enabled.
The ECU programs the MAX9258, MAX9257, and
peripheral devices at startup and during the control
channel phase. In a digital video system, the control
channel phase occurs during the vertical blanking time
and synchronizes to the VSYNC signal. The programma-
ble active edge of VSYNC initiates the control channel
phase. Nonactive edge of VSYNC can transition at any
time after 8 x tT if MAX9257 spread is not enabled and
0.5/fSSM when enabled. At the end of video phase, the
MAX9258 drives CCEN high to indicate to the ECU that
the control channel is open. Programmable timers and
ECU signal activity determine how long the control
channel stays open. The timers are reset by ECU signal
activity. ECU programming must not exceed the vertical
blanking time to avoid loss of video data.
After the control channel phase closes, the MAX9257
sends a 546 or 1090 word pattern as handshaking
(HSK) to synchronize the MAX9258’s internal clock
recovery circuit to the MAX9257’s transmitted data.
Following the handshaking, the control channel is
closed and the video phase begins. The serial LVDS
data is recovered and parallel data is valid on the pro-
grammed edge of the recovered pixel clock.
MAX9257/MAX9258
______________________________________________________________________________________
19
Fully Programmable Serializer/Deserializer
with UART/I2C Control Channel
VIDEO
HSK
CONTROL
VSYNC_IN
SDI/O
±
SDI/O
±
CCEN
HSK = HANDSHAKING
0.5/fSSM
(max)
SPREAD
PROFILE
Figure 20. Video and Control Channel Phases (MAX9257 Spread is Enabled)
VIDEO
HSK
CONTROL
VSYNC_IN
SDI/O
±
SDI/O
±
CCEN
HSK = HANDSHAKING
8tT
Figure 19. Video and Control Channel Phases (Spread Off)
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