参数资料
型号: AD9979BCPZ
厂商: Analog Devices Inc
文件页数: 5/56页
文件大小: 0K
描述: IC PROCESSOR CCD 14BIT 48-LFCSP
标准包装: 1
类型: CCD 信号处理器,14 位
输入类型: 逻辑
输出类型: 逻辑
接口: 3 线串口
电流 - 电源: 48mA
安装类型: 表面贴装
封装/外壳: 48-VFQFN 裸露焊盘,CSP
供应商设备封装: 48-LFCSP-VQ(7x7)
包装: 托盘
AD9979
Rev. C | Page 13 of 56
PROGRAMMABLE TIMING GENERATION
PRECISION TIMING HIGH SPEED TIMING CORE
The AD9979 generates flexible high speed timing signals using
the Precision Timing core. This core is the foundation for
generating the timing for both the CCD and the AFE; the reset
gate (RG), the HL, Horizontal Driver H1 to Horizontal Driver
H4, and the SHP and SHD sample clocks. A unique architecture
makes it routine for the system designers to optimize image
quality by providing precise control over the horizontal CCD
readout and the AFE-correlated double sampling.
Timing Resolution
The Precision Timing core uses a master clock input (CLI) as a
reference. This clock is recommended to be the same as the
CCD pixel clock frequency. Figure 15 illustrates how the internal
timing core divides the master clock period into 64 steps, or
edge positions. Therefore, the edge resolution of the Precision
Timing core is tCLI/64. (For more information on using the
CLI input, refer to the Applications Information section.)
Using a 65 MHz CLI frequency, the edge resolution of the
Precision Timing core is approximately 240 ps. If a 1× system
clock is not available, it is also possible to use a 2× reference
clock, by programming the CLIDIVIDE register (Address 0x0D).
The AD9979 then internally divides the CLI frequency by 2.
High Speed Clock Programmability
Figure 16 shows how the high speed clocks, RG, HL, H1 to H4,
SHP, and SHD, are generated. The RG pulse has programmable
rising and falling edges and can be inverted using the polarity
control. The HL, H1, and H2 horizontal clocks have separate
programmable rising and falling edges and polarity control. The
AD9979 provides additional HCLK mode programmability, see
The edge location registers are each six bits wide, allowing the
selection of all 64 edge locations. Figure 19 shows the default
timing locations for all of the high speed clock signals.
P[0]
P[64] = P[0]
P[16]
P[32]
P[48]
1 PIXEL
PERIOD
CLI
tCLIDLY
POSITION
NOTES
1. THE PIXEL CLOCK PERIOD IS DIVIDED INTO 64 POSITIONS, PROVIDING FINE EDGE RESOLUTION FOR HIGH SPEED CLOCKS.
2. THERE IS A FIXED DELAY FROM THE CLI INPUT TO THE INTERNAL PIXEL PERIOD POSITION (
tCLIDLY).
tCONV
Figure 15. High Speed Clock Resolution From CLI Master Clock Input
HL
CCD
SIGNAL
RG
PROGRAMMABLE CLOCK POSITIONS:
1SHP SAMPLE LOCATION.
2SHD SAMPLE LOCATION.
3RG RISING EDGE.
4RG FALLING EDGE.
5H1 RISING EDGE.
6H1 FALLING EDGE.
7HL RISING EDGE.
8HL FALLING EDGE.
1
2
34
78
H2, H4
H1, H3
56
05
95
7-
0
18
Figure 16. High Speed Clock Programmable Locations (HCLKMODE = 1)
相关PDF资料
PDF描述
AD694BRZ IC TRANSMITTER 4-20MA 16-SOIC
LTK001ACN8#PBF IC THERMOCOUPL COMP& KIT 8DIP
AD693AQ IC TRANSMITTER 4-20MA 20-CDIP
VE-J3K-IY-F3 CONVERTER MOD DC/DC 40V 50W
AD9845BJSTZ IC CCD SIGNAL PROC 12BIT 48-LQFP
相关代理商/技术参数
参数描述
AD9979BCPZRL 功能描述:IC PROCESSOR CCD 14BIT 48-LFCSP 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
AD9980 制造商:AD 制造商全称:Analog Devices 功能描述:High Performance 8-Bit Display Interface
AD9980/PCBZ 功能描述:KIT EVALUATION AD9980 RoHS:是 类别:编程器,开发系统 >> 评估演示板和套件 系列:Advantiv® 标准包装:1 系列:PCI Express® (PCIe) 主要目的:接口,收发器,PCI Express 嵌入式:- 已用 IC / 零件:DS80PCI800 主要属性:- 次要属性:- 已供物品:板
AD9980KSTZ-80 功能描述:IC INTERFACE 8BIT ANALOG 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
AD9980KSTZ-95 功能描述:IC INTERFACE 8BIT ANALOG 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