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參數資料
| 型號： | ADV7390 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| 中文描述： | 低功耗，芯片尺寸10位標清/高清視頻編碼器 |
| 文件頁數： | 24/96頁 |
| 文件大?。?/td> | 1209K |
| 代理商： | ADV7390 |
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ADV7390/ADV7391/ADV7392/ADV7393
Rev. 0 | Page 24 of 96
SDA
SCL
START ADDR R/W ACK
SUBADDRESS ACK
Figure 47. I
2
C Data Transfer
DATA
ACK
STOP
1–7
8
9
S
1–7
1–7
P
8
9
8
9
0
WRITE
SEQUENCE
READ
SEQUENCE
S
SLAVE ADDR
A(S)
SUBADDR
A(S)
DATA
DATA
A(S)
P
S
SLAVE ADDR
A(S)
SUBADDR
A(S) S
SLAVE ADDR
A(S)
DATA
DATA
A(M)
A(M) P
S = START BIT
P = STOP BIT
A(S) = ACKNOWLEDGE BY SLAVE
A(M) = ACKNOWLEDGE BY MASTER
A(S) = NO-ACKNOWLEDGE BY SLAVE
A(M) = NO-ACKNOWLEDGE BY MASTER
LSB = 0
LSB = 1
A(S)
0
Figure 48. I
2
C Read and Write Sequence
SPI OPERATION
The ADV739x supports a 4-wire serial (SPI-compatible) bus
connecting multiple peripherals. Two inputs, master out slave in
(MOSI) and serial clock (SCLK), and one output, master in
slave out (MISO), carry information between a master SPI
peripheral on the bus and the ADV739x. Each slave device on
the bus has a slave select pin that is connected to the master SPI
peripheral by a unique slave select line. As such, slave device
addressing is not required.
To invoke SPI operation, a master SPI peripheral (for example, a
microprocessor) should issue three low pulses on the ADV739x
ALSB/SPI_SS pin. When the encoder detects the third rising
edge on the ALSB/SPI_SS pin, it automatically switches to SPI
communication mode. The ADV739x remains in SPI commu-
nication mode until a hardware reset or power-down occurs.
To control the ADV739x, use the following protocol for both read
and write transactions. First, the master initiates a data transfer by
driving and holding the ADV739x ALSB/SPI_SS pin low. On the
first SCLK rising edge after ALSB/SPI_SS has been driven low,
the write command, defined as 0xD4, is written to the ADV739x
over the MOSI line. The second byte written to the MOSI line is
interpreted as the starting subaddress. Data on the MOSI line is
written MSB first and clocked on the rising edge of SCLK.
There is a subaddress auto-increment facility. This allows data
to be written to or read from registers in ascending subaddress
sequence starting at any valid subaddress. The user can also
access any unique subaddress register on a one-by-one basis.
In a write data transfer, 8-bit data bytes are written to the
ADV739x, MSB first, on the MOSI line immediately after the
starting subaddress. The data bytes are clocked into the
ADV739x on the rising edge of SCLK. When all data bytes have
been written, the master completes the transfer by driving and
holding the ADV739x ALSB/SPI_SS pin high.
In a read data transfer, after the subaddress has been clocked in
on the MOSI line, the ALSB/SPI_SS pin is driven and held high
for at least one clock cycle. Then, the ALSB/SPI_SS pin is driven
and held low again. On the first SCLK rising edge after
ALSB/SPI_SS has been driven low, the read command, defined
as 0xD5, is written, MSB first, to the ADV739x over the MOSI
line. Subsequently, 8-bit data bytes are read from the ADV739x,
MSB first, on the MISO line. The data bytes are clocked out of
the part on the falling edge of SCLK. When all data bytes have
been read, the master completes the transfer by driving and
holding the ADV739x ALSB/SPI_SS pin high.
相關PDF資料 |
PDF描述 |
|---|---|
| ADV7390BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390BCPZ-REEL | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390EBZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391 | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7390BCBZ-A-RL | 功能描述:Video Encoder IC DVD, Game Consoles, Media Players 30-WLCSP (2.53x3) 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態:有效 類型:視頻編碼器 應用:DVD，游戲控制臺，媒體播放器 電壓 - 電源，模擬:2.6 V ~ 3.46 V 電壓 - 電源，數字:1.71 V ~ 1.89 V 安裝類型:表面貼裝 封裝/外殼:30-WFBGA，WLCSP 供應商器件封裝:30-WLCSP（2.53x3） 標準包裝:5,000 |
| ADV7390BCPZ | 制造商:Analog Devices 功能描述: |
| ADV7390BCPZ-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390EBZ | 制造商:AD 制造商全稱:Analog Devices 功能描述:Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7390WBCPZ | 功能描述:IC VIDEO ENCODER 10BIT 32LFCSP 制造商:analog devices inc. 系列:- 包裝:托盤 零件狀態:在售 類型:視頻編碼器 應用:DVD，游戲控制臺，媒體播放器 電壓 - 電源，模擬:2.6 V ~ 3.46 V 電壓 - 電源，數字:1.71 V ~ 1.89 V 安裝類型:表面貼裝 封裝/外殼:32-WFQFN 裸露焊盤，CSP 供應商器件封裝:32-LFCSP-WQ（5x5） 標準包裝:1 |
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