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AD9985KSTZ-110

更新时间： 2024-02-29 20:25:07
品牌 Logo 应用领域
亚德诺 - ADI 显示器驱动程序和接口接口集成电路
页数 文件大小 规格书
32页 349K
描述
110 MSPS/140 MSPS Analog Interface for Flat Panel Displays

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AD9985KSTZ-110 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：QFP
包装说明：LQFP,针数：80
Reach Compliance Code：unknown风险等级：5.1
Is Samacsys：N接口集成电路类型：INTERFACE CIRCUIT
JESD-30 代码：S-PQFP-G80JESD-609代码：e3
长度：14 mm湿度敏感等级：3
功能数量：1端子数量：80
最高工作温度：70 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：LQFP
封装形状：SQUARE封装形式：FLATPACK, LOW PROFILE
峰值回流温度（摄氏度）：260认证状态：COMMERCIAL
座面最大高度：1.6 mm最大供电电压：3.45 V
最小供电电压：3.15 V标称供电电压：3.3 V
表面贴装：YES技术：CMOS
温度等级：COMMERCIAL端子面层：MATTE TIN
端子形式：GULL WING端子节距：0.65 mm
端子位置：QUAD处于峰值回流温度下的最长时间：40
宽度：14 mmBase Number Matches：1

AD9985KSTZ-110 数据手册

 浏览型号AD9985KSTZ-110的Datasheet PDF文件第23页浏览型号AD9985KSTZ-110的Datasheet PDF文件第24页浏览型号AD9985KSTZ-110的Datasheet PDF文件第25页浏览型号AD9985KSTZ-110的Datasheet PDF文件第27页浏览型号AD9985KSTZ-110的Datasheet PDF文件第28页浏览型号AD9985KSTZ-110的Datasheet PDF文件第29页 
AD9985  
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.  
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.  
Table 42. Serial Port Addresses  
Bit 7  
Bit 6  
Bit 5  
Bit 4  
Bit 3  
A2  
Bit 2  
A1  
Bit 1  
A0  
A6  
A5  
A4  
A3  
(MSB)  
1
1
0
0
0
0
1
1
1
1
0
0
0
1
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.  
DATA TRANSFER VIA SERIAL INTERFACE  
For each byte of data read or written, the MSB is the first bit of  
the sequence.  
There are five components to serial bus operation:  
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.  
•
•
•
•
•
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.  
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.  
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/ bit (the eighth bit). The R/ bit indicates the direction of  
W
W
SDA  
SCL  
tBUFF  
tSTAH  
tDSU  
tDHO  
tSTOSU  
tSTASU  
tDAL  
tDAH  
Figure 12. Serial Port Read/Write Timing  
Rev. 0 | Page 26 of 32  
1...23242526272829...32

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