- 您现在的位置：买卖IC网 > PDF目录11767 > AD9985BSTZ-110 (Analog Devices Inc)IC INTERFACE 8BIT 110MSPS 80LQFP PDF资料下载
参数资料
| 型号： | AD9985BSTZ-110 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 19/32页 |
| 文件大小： | 0K |
| 描述： | IC INTERFACE 8BIT 110MSPS 80LQFP |
| 标准包装： | 1 |
| 应用： | 视频 |
| 接口： | 串行 |
| 电源电压： | 2.2 V ~ 3.45 V |
| 封装/外壳： | 80-LQFP |
| 供应商设备封装： | 80-LQFP（14x14） |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页当前第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
AD9985
Rev. 0 | Page 26 of 32
2-WIRE SERIAL CONTROL PORT
A 2-wire serial control interface (I2C) is provided. Up to two
AD9985 devices may be connected to the 2-wire serial interface,
with each device having a unique address.
The 2-wire serial interface comprises a clock (SCL) and a
bidirectional data (SDA) pin. The analog flat panel interface
acts as a slave for receiving and transmitting data over the serial
interface. When the serial interface is not active, the logic levels
on SCL and SDA are pulled high by external pull-up resistors.
Data received or transmitted on the SDA line must be stable for
the duration of the positive-going SCL pulse. Data on SDA must
change only when SCL is low. If SDA changes state while SCL is
high, the serial interface interprets that action as a start or stop
sequence.
There are five components to serial bus operation:
Start Signal
Slave Address Byte
Base Register Address Byte
Data Byte to Read or Write
Stop Signal
When the serial interface is inactive (SCL and SDA are high),
communications are initiated by sending a start signal. The start
signal is a high-to-low transition on SDA while SCL is high.
This signal alerts all slaved devices that a data transfer sequence
is coming.
The first eight bits of data transferred after a start signal
comprise a 7-bit slave address (the first seven bits) and a single
R/W bit (the eighth bit). The R/W bit indicates the direction of
data transfer, read from (1) or write to (0) the slave device. If the
transmitted slave address matches the address of the device (set
by the state of the SA1-0 input pins in Table 42), the AD9985
acknowledges by bringing SDA low on the ninth SCL pulse. If
the addresses do not match, the AD9985 does not acknowledge.
Table 42. Serial Port Addresses
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
A6
A5
A4
A3
A2
A1
A0
(MSB)
1
0
1
0
1
0
1
0
1
DATA TRANSFER VIA SERIAL INTERFACE
For each byte of data read or written, the MSB is the first bit of
the sequence.
If the AD9985 does not acknowledge the master device during a
write sequence, the SDA remains high so the master can
generate a stop signal. If the master device does not acknowl-
edge the AD9985 during a read sequence, the AD9985
interprets this as “end of data.” The SDA remains high so the
master can generate a stop signal.
Writing data to specific control registers of the AD9985 requires
that the 8-bit address of the control register of interest be
written after the slave address has been established. This control
register address is the base address for subsequent write opera-
tions. The base address autoincrements by one for each byte of
data written after the data byte intended for the base address.
SDA
SCL
tBUFF
tSTAH
tDHO
tDSU
tDAL
tDAH
tSTASU
tSTOSU
04799-0-012
Figure 12. Serial Port Read/Write Timing
相关PDF资料 |
PDF描述 |
|---|---|
| AD9882AKSTZ-100 | IC INTERFACE/DVI 100MHZ 100LQFP |
| AD9882KSTZ-100 | IC INTERFACE/DVI 100MHZ 100LQFP |
| MS27473E16B55PA | CONN PLUG 55POS STRAIGHT W/PINS |
| LTC4305IGN#TR | IC BUFFER BUS 2WR ADDRESS 16SSOP |
| VI-B43-IW-F2 | CONVERTER MOD DC/DC 24V 100W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9985KST-110 | 制造商:Analog Devices 功能描述:110 MSPS/140 MSPS ANLG INTRFC FOR FLAT PNL DISPLAYS 80LQFP - Bulk |
| AD9985KSTZ-110 | 功能描述:IC INTERFACE 8BIT 110MSPS 80LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 特色产品:NXP - I2C Interface 标准包装:1 系列:- 应用:2 通道 I²C 多路复用器 接口:I²C，SM 总线 电源电压:2.3 V ~ 5.5 V 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:剪切带 (CT) 安装类型:表面贴装 产品目录页面:825 (CN2011-ZH PDF) 其它名称:568-1854-1 |
| AD9985KSTZ-140 | 功能描述:IC INTERFACE 8BIT 140MSPS 80LQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 专用 系列:- 标准包装:3,000 系列:- 应用:PDA，便携式音频/视频，智能电话 接口:I²C，2 线串口 电源电压:1.65 V ~ 3.6 V 封装/外壳:24-WQFN 裸露焊盘 供应商设备封装:24-QFN 裸露焊盘（4x4） 包装:带卷 (TR) 安装类型:表面贴装 产品目录页面:1015 (CN2011-ZH PDF) 其它名称:296-25223-2 |
| AD9990 | 制造商:AD 制造商全称:Analog Devices 功能描述:Dual Channel, 14-Bit CCD Signal Processor with V-Driver and Precision Timing |
| AD9990BBCZ | 功能描述:IC CCD SGNL PROCESSOR 112CSPBGA RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG，串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:20-TSSOP 包装:管件 |
发布紧急采购，3分钟左右您将得到回复。