參數(shù)資料
型號(hào)： TVP7002PZP
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP100
封裝： GREEN, PLASTIC, HTQFP-100
文件頁(yè)數(shù)： 16/57頁(yè)
文件大小： 517K
代理商： TVP7002PZP
SLES206B
– MAY 2007 – REVISED MAY 2011
I
2C Host Interface
Communication with the TVP7002 device is via an I2C host interface. The I2C standard consists of two signals,
serial input/output data (SDA) line and input clock line (SCL), which carry information between the devices
connected to the bus. A third signal (I2CA) is used for slave address selection. Although an I2C system can be
multi-mastered, the TVP7002 can function as a slave device only.
Since SDA and SCL are kept open drain at logic high output level or when the bus is not driven, the user should
connect SDA and SCL to a positive supply voltage via a pullup resistor on the board. SDA is implemented
bidirectional. The slave addresses select, terminal 73 (I2CA), enables the use of two TVP7002 devices tied to the
same I2C bus, as it controls the least significant bit of the I2C device address
Table 9. I2C Host Interface Terminal Description
SIGNAL
TYPE
DESCRIPTION
I2CA
I
Slave address selection
SCL
I
Input clock line
SDA
I/O
Input/output data line
Reset and I
2C Bus Address Selection
The TVP7002 can respond to two possible chip addresses. The I2 slave address is continuously interpreted from
the logic level present at the I2CA terminal. The I2C slave address must be configured with an external
connection to either IOGND (I2C address = B8h) or IOVDD (I2C address= BAh). A 2.2-k
Ω pullup or pulldown
resistor may be used for this connection.
Table 10. I2C Host Interface Device Addresses
A6
A5
A4
A3
A2
A1
A0 (I2CA)
R/W
HEX
1
0
1
0
0(1)
1/0
B9h/B8h
1
0
1
0
1(2)
1/0
BBh/BAh
(1)
If I2CA terminal 73 is strapped to IOGND, I2C device address A0 is set to 0.
(2)
If I2CA terminal 73 is strapped to IOVDD, I2C device address A0 is set to 1.
I
2C Operation
Data transfers occur utilizing the following illustrated formats.
S
10111000
ACK
Subaddress
ACK
Send data
ACK
P
Read from I2C control registers
S
10111000
ACK
Subaddress
ACK
S
10111001
ACK
Receive data
NAK
P
S = I2C bus Start condition
P = I2C bus Stop condition
ACK = Acknowledge generated by the slave
NAK = Acknowledge generated by the master, for multiple byte read master with ACK each byte except last byte
Subaddress = Subaddress byte
Data = Data byte, if more than one byte of DATA is transmitted (read and write), the subaddress pointer is
automatically incremented
I2C bus address = Example shown that I2CA is in default mode; write (B8h), read (B9h).
Copyright
2007–2011, Texas Instruments Incorporated
23
相關(guān)PDF資料
PDF描述
TWL1101PFB SPECIALTY CONSUMER CIRCUIT, PQFP48
TWL1101PFBR SPECIALTY CONSUMER CIRCUIT, PQFP48
TWL1102PBS SPECIALTY CONSUMER CIRCUIT, PQFP32
TWL1102PBSR SPECIALTY CONSUMER CIRCUIT, PQFP32
TWL1103PBS SPECIALTY CONSUMER CIRCUIT, PQFP32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TVP7002PZPR 功能描述:視頻模擬/數(shù)字化轉(zhuǎn)換器集成電路 Tr 8/10B 165/110MSPS Video ADC RoHS:否 制造商:Texas Instruments 輸入信號(hào)類型:Differential 轉(zhuǎn)換器數(shù)量:1 ADC 輸入端數(shù)量:4 轉(zhuǎn)換速率:3 Gbps 分辨率:8 bit 結(jié)構(gòu): 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel
TVP9000MZDSR 制造商:Texas Instruments 功能描述:
TVP9000ZDS 制造商:Texas Instruments 功能描述:
TVP9000ZDSR 制造商:Texas Instruments 功能描述:
TVP9001ZDS 制造商:Texas Instruments 功能描述:
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*