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參數(shù)資料
| 型號(hào)： | LM9823CCWMX |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | LM9823 3 Channel 48-Bit Color Scanner Analog Front End |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | 0.300 INCH, PLASTIC, SOIC-28 |
| 文件頁數(shù)： | 5/22頁 |
| 文件大?。?/td> | 244K |
| 代理商： | LM9823CCWMX |
5
www.national.com
AC Electrical Characteristics
The following specifications apply for AGND=DGND=0V, V
A
=+5.0V
,
V
=+3.0 or +5.0V
DC
, f
MCLK
=12MHz, except where noted
otherwise.
Boldface limits apply for T
A
=T
J
=T
MIN
to T
MAX
; all other limits T
A
=T
J
=25°C.
(Notes 7& 8)
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional,
but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed specifications apply
only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions.
Note 2:
All voltages are measured with respect to GND=AGND=DGND=0V, unless otherwise specified.
Note 3:
When the input voltage (V
IN
) at any pin exceeds the power supplies (V
IN
<GND or V
IN
>V
A
or V
D
), the current at that pin should be limited to 25mA. The 50mA max-
imum package input current rating limits the number of pins that can simultaneously safely exceed the power supplies with an input current of 25mA to two.
Note 4:
The maximum power dissipation must be derated at elevated temperatures and is dictated by T
J
max,
Θ
JA
and the ambient temperature, T
A
. The maximum allow-
able power dissipation at any temperature is P
D
= (T
J
max - T
A
) /
Θ
JA
. T
J
max = 150°C for this device. The typical thermal resistance (
Θ
JA
) of this part when board mounted
is 69°C/W for the M28B SOIC package
Note 5:
Human body model, 100pF capacitor discharged through a 1.5k
resistor. Machine model, 200 pF capacitor discharged through a 0
resistor.
Note 6:
See AN450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in any National Semiconductor Linear
Data Book for other methods of soldering surface mount devices.
Power Supply Characteristics
I
A
Analog Supply Current
Operating
75
108
mA (max)
Power Down
675
900
μA (max)
I
D
Digital Supply Current (Note 15)
Operating
210
475
μA (max)
Power Down
2
25
μA (max)
Symbol
Parameter
Conditions
Typical
(Note 9)
Limits
(Note 10)
Units
(Limits)
f
MCLK
Maximum MCLK frequency
12
MHz (min)
t
MCLK
MCLK period
83
ns (min)
MCLK duty cycle
40
60
%(min)
%(max)
t
SCLK
Serial Clock Period
1
t
MCLK
(min)
t
SEN
Serial Enable high time
3
t
MCLK
(min)
t
SSU
SDI setup time
1
ns (min)
t
SH
SDI hold time
3
ns (min)
t
SDDO
SCLK
edge to new valid data
V
D
= 5.0V
V
D
= 3.3V
8.5
19
20
ns (max)
t
VSU
VSMP setup time
1
ns (min)
t
VH
VSMP hold time
3
ns (min)
t
CSU
CLMP setup time
1
ns (min)
t
CH
CLMP hold time
3
ns (min)
t
DDO
MCLK
edge to new valid data
V
D
= 5.0V
V
D
= 3.3V
16
25
25
ns (max)
ns (max)
DC and Logic Electrical Characteristics
(Continued)
The following specifications apply for AGND=DGND=0V, V
=+5.0V
DC
,
V
D
=+3.0 or +5.0V
DC
, f
MCLK
=12MHz.
Boldface limits apply
for T
A
=T
J
=T
MIN
to T
MAX
; all other limits T
A
=T
J
=25°C. (Notes 7 & 8)
Symbol
Parameter
Conditions
Typical
(Note 9)
Limits
(Note 10)
Units
(Limits)
L
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