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參數資料
| 型號： | TS3USB221RSERG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 多路復用及模擬開關 |
| 英文描述： | 1-CHANNEL, DIFFERENTIAL MULTIPLEXER, PQCC10 |
| 封裝： | GREEN, PLASTIC, MO-288UEFD, UQFN-10 |
| 文件頁數： | 16/20頁 |
| 文件大小： | 913K |
| 代理商： | TS3USB221RSERG4 |
www.ti.com
SCDS220G – NOVEMBER 2006 – REVISED SEPTEMBER 2010
DYNAMIC ELECTRICAL CHARACTERISTICS
over operating range, TA = –40°C to 85°C, VCC = 2.5 V ± 10%, GND = 0 V
PARAMETER
TEST CONDITIONS
TYP(1)
UNIT
XTALK
Crosstalk
RL = 50 , f = 250 MHz
–39
dB
OIRR
OFF isolation
RL = 50 , f = 250 MHz
–40
dB
BW
Bandwidth (–3 dB)
RL = 50
1.1
GHz
(1)
For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
SWITCHING CHARACTERISTICS
over operating range, TA = –40°C to 85°C, VCC = 3.3 V ± 10%, GND = 0 V
PARAMETER
MIN
TYP(1)
MAX
UNIT
tpd
Propagation delay(2) (3)
0.25
ns
S to D, nD
30
tON
Line enable time
ns
OE to D, nD
17
S to D, nD
12
tOFF
Line disable time
ns
OE to D, nD
10
tSK(O)
Output skew between center port to any other port(2)
0.1
0.2
ns
tSK(P)
Skew between opposite transitions of the same output (tPHL – tPLH)
(2)
0.1
0.2
ns
(1)
For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
(2)
Specified by design
(3)
The bus switch contributes no propagational 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 0.25 ns for 10-pF load. Since this time constant is much smaller than the rise/fall
times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when used in
a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
SWITCHING CHARACTERISTICS
over operating range, TA = –40°C to 85°C, VCC = 2.5 V ± 10%, GND = 0 V
PARAMETER
MIN
TYP(1)
MAX
UNIT
tpd
Propagation delay(2) (3)
0.25
ns
S to D, nD
50
tON
Line enable time
ns
OE to D, nD
32
S to D, nD
23
tOFF
Line disable time
ns
OE to D, nD
12
tSK(O)
Output skew between center port to any other port(2)
0.1
0.2
ns
tSK(P)
Skew between opposite transitions of the same output (tPHL – tPLH)
(2)
0.1
0.2
ns
(1)
For Max or Min conditions, use the appropriate value specified under Electrical Characteristics for the applicable device type.
(2)
Specified by design
(3)
The bus switch contributes no propagational 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 0.25 ns for 10-pF load. Since this time constant is much smaller than the rise/fall
times of typical driving signals, it adds very little propagational delay to the system. Propagational delay of the bus switch, when used in
a system, is determined by the driving circuit on the driving side of the switch and its interactions with the load on the driven side.
Copyright 2006–2010, Texas Instruments Incorporated
5
Product Folder Link(s): TS3USB221
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