參數(shù)資料
型號(hào): KAC-1310
廠(chǎng)商: Electronic Theatre Controls, Inc.
英文描述: 1280 (H) x 1024 (V) SXGA CMOS Image Sensor
中文描述: 1280(高)x 1024(五)SXGA CMOS圖像傳感器
文件頁(yè)數(shù): 47/76頁(yè)
文件大?。?/td> 759K
代理商: KAC-1310
IMAGE SENSOR SOLUTIONS
47
IMAGE SENSOR SOLUTIONS
K A C - 1 3 1 0 R e v 4 w w w . k o d a k . c o m / g o / i m a g e r s 5 8 5 - 7 2 2 - 4 3 8 5 E m a i l : i m a g e r s @ k o d a k . c o m
Power Configuration Registers (0C
h
)
The Power Configuration Register controls the
internal analog functionality that directly affects
power consumption of the device. A pair of
external precision resistor pins are available on
the KAC-1310 that may be used to more
accurately regulate the internal current sources.
This serves to minimize variations in power
consumption that are caused by variations in
internal resistor values as well as offer a method
to reduce the power consumption of the device.
The default for this control uses the internally
provided resistor which is nominally 12.5k
. This
feature is enabled by setting the
res
bit of the
Power Configuration Register and placing a
resistor between the EXTRESA and EXTRESB
pins.
Figure 19
on
page
30
depicts the power
savings that can be achieved with an external
Address
resistor at the nominal clock rate of 10 MHz.
Power is further reduced at lower clock rates.
Figure 18
shows how the noise of the system is
affected by the EXTRES. It is recommended that
the External Resistor be kept at 39k
at nominal
speed. The optimal EXTRES value will change
based on system needs and chip frequency.
The KAC-1310 is put into a standby mode via the
I
C interface by setting the
sby
bit of the Power
Configuration Register. While the imager is in this
mode the power consumption is reduced
considerably (see
Table 19
). Also, the I
2
C
continues to work and any number of registers can
be programmed. Upon leaving standby state the
imager will remember all register settings and
apply them to the first imager captured.
0C
h
Power Configuration
Default
00
h
7 (msb)
6
5
4
3
2
1
0 (lsb)
x
x
x
fuo
res
fuo
fuo
sby
Bit
Number
Function Description
Reset
State
7 - 5
Unused
Unused
xxx
b
4
FUO
Factory Use
Only
0
b
3
Int/Ext
Resistor
0
b
= Internal Resistor
1
b
= External Resistor
0
b
2 - 1
FUO
Factory Use
Only
00
b
0
Software
Standby
0
b
= Soft Standby Inactive
1
b
= Soft Standby Active
0
b
Table 19: Power Configuration Register (0C
h
)
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