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參數資料
| 型號： | QS3253 |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | QUICKSWITCH PRODUCTS HIGH-SPEED CMOS QUICKSWITCH DUAL 4:1 MUX/DEMUX |
| 中文描述： | QUICKSWITCH產品高速的CMOS QUICKSWITCH雙4:1復用/解復用器 |
| 文件頁數： | 4/5頁 |
| 文件大?。?/td> | 47K |
| 代理商： | QS3253 |
4
INDUSTRIAL TEMPERATURE RANGE
IDTQS3253
HIGH-SPEED CMOS QUICKSWITCH DUAL 4:1 MUX/DEMUX
POWER SUPPLY CHARACTERISTICS
Symbol
Parameter
I
CCQ
Quiescent Power Supply Current
I
CC
Power Supply Current per Control Input HIGH
(2)
I
CCD
Dynamc Power Supply Current per MHz
(3)
Test Conditions
(1)
Max.
3
1.5
0.25
Unit
μ
A
mA
V
CC
= Max., V
IN
= GND or Vcc, f = 0
V
CC
= Max., V
IN
= 3.4V, f = 0
V
CC
= Max., I and Y pins open
Control Inputs Toggling at 50% Duty Cycle
mA/MHz
NOTES:
1. For conditions shown as Mn. or Max., use the appropriate values specified under DC Electrical Characteristics.
2. Per TLL driven input (V
IN
= 3.4V, control inputs only). I and Y pins do not contribute to
Icc.
3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The I and Y inputs generate no significant
AC or DC currents as they transition. This parameter is guaranteed but not production tested.
SWITCHING CHARACTERISTICS OV ER OPERATING RANGE
T
A
= -40°C to +85°C, V
CC
= 5.0V ± 5%;
C
LOAD
= 50pF, R
LOAD
= 500
unless otherwise noted.
Symbol
t
PLH
t
PHL
t
PZL
t
PZH
t
PZL
t
PZH
t
PLZ
t
PHZ
Parameter
Mn.
(1)
—
Typ.
—
Max.
0.25
Unit
Data Propagation Delay
(2,3)
Ix to Y
Switch Turn-on Delay
Sx to Y
Switch Turn-on Delay
Ex
to Y
Switch Turn-off Delay
(2)
Ex
to Y, Sx to Y
ns
0.5
—
6.6
ns
0.5
—
6
ns
0.5
—
6
ns
NOTES:
1.
Mnimums are guaranteed but not production tested.
2
.
This parameter is guaranteed but not production tested.
3
.
The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone
is of the order of 0.25ns for C
L
= 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to
the system Propagation delay of the bus switch, when used in a system is determned by the driving circuit on the driving side of the switch and its interaction with the load
on the driven side.
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| QS3253QG | 功能描述:編碼器、解碼器、復用器和解復用器 2X4:1 MUX-DEMUX, QSW RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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