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參數(shù)資料
| 型號(hào)： | TMC2491A |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Multistandard Digital Video Encoder(多標(biāo)準(zhǔn)數(shù)字視頻編碼器) |
| 中文描述： | 多標(biāo)準(zhǔn)數(shù)字視頻編碼器（多標(biāo)準(zhǔn)數(shù)字視頻編碼器） |
| 文件頁數(shù)： | 27/36頁 |
| 文件大小： | 208K |
| 代理商： | TMC2491A |
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PRODUCT SPECIFICATION
TMC2490A/TMC2491A
27
Absolute Maximum Ratings
(beyond which the device may be damaged)
1
Notes:
1. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if
Operating Conditions are not exceeded.
2. Applied voltage must be current limited to specified range.
3. Forcing voltage must be limited to specified range.
4. Current is specified as conventional current flowing into the device.
Parameter
Power Supply Voltage
Digital Inputs
Applied Voltage
2
Forced Current
3,4
Output
Applied Voltage
2
Forced Current
3,4
Short Circuit Duration (single output in HIGH state to ground)
Analog Short Circuit Duration (all outputs to ground)
Temperature
Operating, Ambient
Junction
Storage Temperature
Lead Soldering (10 seconds)
Vapor Phase Soldering (1 minute)
Min.
-0.5
Typ.
Max.
7.0
Unit
V
-0.5
-20.0
V
DD
+ 0.5
20.0
V
mA
-0.5
-3.0
V
DD
+ 0.5
6.0
1
Infinite
V
mA
sec
-20
110
140
150
300
220
°
C
°
C
°
C
°
C
°
C
-65
Operating Conditions
Parameter
V
DD
V
IH
Conditions
Min.
4.75
2.0
2.4
0.7V
DD
GND
Typ.
5.0
Max.
5.25
V
DD
V
DD
Units
V
V
Power Supply Voltage
Input Voltage, Logic HIGH
TTL Compatible Inputs
CLK Input
R-Bus Inputs
TTL Compatible Inputs
R-Bus Inputs
V
IL
Input Voltage, Logic LOW
0.8
V
0.3V
DD
V
REF
I
REF
External Reference Voltage
D/A Converter Reference Current
1.235
1.57
V
(I
REF
= V
REF
/R
REF
),
flowing out of the R
REF
pin
V
REF
= NOM, R
L
= 75
mA
R
REF
I
OH
I
OL
T
A
External Reference Resistor
Output Current, Logic HIGH
Output Current, Logic LOW
Ambient Temperature, Still Air
787
mA
mA
°
C
-2.0
4.0
70
0
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