- 您現在的位置：買賣IC網 > PDF目錄374048 > ADV7391 (Analog Devices, Inc.) Low Power, Chip Scale 10-Bit SD/HD Video Encoder PDF資料下載
參數資料
| 型號： | ADV7391 |
| 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 |
| 文件大小： | 1209K |
| 代理商： | ADV7391 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁當前第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁
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 |
|---|---|
| ADV7391BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391BCPZ-REEL | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7391EBZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7392 | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
| ADV7392BCPZ | Low Power, Chip Scale 10-Bit SD/HD Video Encoder |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADV7391BCBZ-A-RL | 功能描述:視頻 IC RoHS:否 制造商:Fairchild Semiconductor 工作電源電壓:5 V 電源電流:80 mA 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-28 封裝:Reel |
| ADV7391BCPZ | 功能描述:IC ENCODER VIDEO W/DAC 32LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7391BCPZ-REEL | 功能描述:IC VIDEO ENCODER SD/HD 32-LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 編碼器，解碼器，轉換器 系列:- 產品變化通告:Development Systems Discontinuation 26/Apr/2011 標準包裝:1 系列:- 類型:編碼器 應用:DVB-S.2 系統 電壓 - 電源，模擬:- 電壓 - 電源，數字:- 安裝類型:- 封裝/外殼:模塊 供應商設備封裝:模塊 包裝:散裝 其它名稱:Q4645799 |
| ADV7391EBZ | 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 |
| ADV7391WBCPZ | 制造商:Analog Devices 功能描述: |
發布緊急采購，3分鐘左右您將得到回復。