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參數(shù)資料
| 型號(hào)： | SY89475U |
| 廠(chǎng)商： | Micrel Semiconductor,Inc. |
| 英文描述： | Precision LVPECL 2:1 Multiplexer with 1:2 Fanout and Internal Termination |
| 中文描述： | 精密的LVPECL 2:1多路復(fù)用器與1:2扇出和內(nèi)部終端 |
| 文件頁(yè)數(shù)： | 4/11頁(yè) |
| 文件大小： | 565K |
| 代理商： | SY89475U |
Micrel, Inc.
SY89473U
May 2005
4
M9999-052405
hbwhelp@micrel.com
or (408) 955-1690
Absolute Maximum Ratings
(1)
Supply Voltage (V
CC
)....................................-0.5V to +4.0V
Input Voltage (V
IN
)........................................... -0.5V to V
CC
LVPECL Output Current (I
OUT
)
Continuous ...........................................................±50mA
Surge..................................................................±100mA
Input Current
Source/sink Current on IN, /IN..............................±50mA
Source/sink Current on V
T
..................................±100mA
V
REF-AC
Current
Source/sink Current on V
REF-AC
...............................±2mA
Lead Temperature (soldering, 20 sec.) ...................+260°C
Storage Temperature (T
S
)...........................-65°C to 150
°
C
DC Electrical Characteristics
(4)
T
A
= –40°C to +85°C; unless otherwise stated.
Operating Ratings
(2)
Supply Voltage (V
CC
)..................................+2.375V to +2.625V
....................................................................+3.0V to +3.6V
Ambient Temperature (T
A
).................................–40°C to +85°C
Package Thermal Resistance
MLF (
θ
JA
)
Still-Air.................................................................... 50°C/W
MLF (
Ψ
JB
)
Junction-to-Board................................................... 30°C/W
Symbol
Parameter
Condition
Min
Typ
Max
Units
2.375
2.5
2.625
V
V
CC
Power Supply
3.0
3.3
3.6
V
I
CC
R
IN
Power Supply Current
No load, max V
CC
.
45
65
mA
Input Resistance
(IN-to-V
T
)
Differential Input Resistance
(IN-to-/IN)
45
50
55
R
DIFF_IN
90
100
110
V
IH
Input High Voltage
(IN, /IN)
1.2
V
CC
V
V
IL
Input Low Voltage
(IN, /IN)
0
V
IH
-0.1
V
V
IN
Input Voltage Swing
(IN, /IN)
See Figure 1a. Note 5
0.1
V
CC
V
V
DIFF_IN
Differential Input Voltage Swing
|IN-/IN|
See Figure 1b.
0.2
V
V
T_IN
IN-to-V
T
(IN, /IN)
1. 28
V
V
REF-AC
Output Reference Voltage
V
CC
-1.3
V
CC
-1.2
V
CC
-1.1
V
Notes:
1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not
implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratings conditions
for extended periods may affect device reliability.
2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings.
3. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB.
θ
JA
and
Ψ
JB
values are determined for a 4-layer board in still air unless otherwise stated.
4. The circuit is designed to meet the DC specifications shown in the above table after thermal equilibrium has been established.
5. V
IN
(max) is specified when V
T
is floating.
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