參數(shù)資料
型號: MCM20014
廠商: Motorola, Inc.
英文描述: 1/3” Color VGA Digital Image Sensor
中文描述: 1 / 3“彩色VGA數(shù)碼圖像傳感器
文件頁數(shù): 11/54頁
文件大?。?/td> 761K
代理商: MCM20014
MCM20014
MOTOROLA
11
The default is the linear curve, breakpoints can be se-
lected via the slope and breakpoint control bits on the
Post ADC Control Register. This function can be by-
passed to output 10-bit linear data.
Figure 13. Available Companding Curves
2.4 Additional Operational Conditions
The MCM20014 includes initialization, standby modes,
and external reference voltage outputs to afford the
user additional applications flexibility.
2.4.1 Initialization
The INIT input pin (#28) controls reinitialization of the
MCM20014. This serves to assure controlled chip and
system startup. Control is asserted via a logic high in-
put. This state must be held a minimum of 1 ms and a 1
ms
wait period
should be allowed before chip process-
ing to ensure that the start-up routines within the
MCM20014 have run to completion, and to guarantee
that all holding and bypass capacitors, etc. have
achieved their required steady state values.
Tasks which are accomplished during startup include:
reset of the utility programming registers and initializa-
tion to their default values (please refer to previous sec-
tion for settings), reset of all internal counters and
latches, and setup of the analog signal processing
chain.
2.4.2 Standby Mode
The standby mode option is implemented to allow the
user to reduce system power consumption during peri-
ods which do not require operation of the MCM20014.
This feature allows the user to extend battery life in low
power applications.
By utilizing this mode, the user may reduce dynamic
power consumption from 400mW, in the active process-
ing, 13 Million Samples per Second mode, to <50 mW
in the standby mode (note that dynamic power con-
sumption is also reduced in slower conversion speed
applications).
0
Data IN (10-bit)
D
511
255
127
63
191
0
255
127
63
31
15
47
79
95
111
1023
Reg 32
h
= 8F
h
Reg 32
h
= 8B
h
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MCM20027IBBL 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Color SXGA Digital Image Sensor 1280 x 1024 pixel progressive scan solid state image sensor with integrated CDS/PGA/ADC, digital programming, control
MCM20027IBMN 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Color SXGA Digital Image Sensor 1280 x 1024 pixel progressive scan solid state image sensor with integrated CDS/PGA/ADC, digital programming, control