FN6817.4 June 17, 2010 Once the driver DC bias has reached VDD/2 and the transient on the switch side of the DC blocking capacitor has been dis" />
參數(shù)資料
型號: ISL54217IRTZ-T
廠商: Intersil
文件頁數(shù): 6/24頁
文件大?。?/td> 0K
描述: IC USB SWITCH DUAL SP3T 12TQFN
標準包裝: 6,000
功能: USB 開關
電路: 2 x SP3T
導通狀態(tài)電阻: 8 歐姆
電壓電源: 單電源
電壓 - 電源,單路/雙路(±): 2.7 V ~ 4.6 V
電流 - 電源: 9µA
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 12-WFQFN 裸露焊盤
供應商設備封裝: 12-TQFN EP(3x3)
包裝: 帶卷 (TR)
14
FN6817.4
June 17, 2010
Once the driver DC bias has reached VDD/2 and the
transient on the switch side of the DC blocking capacitor
has been discharged to ground through the click/pop
shunt circuitry, the audio switches can be turned ON and
connected through to the speaker loads without
generating any undesirable click/pop noise in the
speakers.
With a typical DC blocking capacitor of 220F and the
click/pop shunt circuitry designed to have a resistance
of 20Ω to 70Ω, allowing a 100ms wait time to discharge
the transient before placing the switch in the Audio
mode will prevent the transient from getting through
to the speaker load. See Figures 30 and 31 in the
“Typical Performance Curves” section.
Typical Performance Curves T
A = +25°C, Unless Otherwise Specified
FIGURE 10. AUDIO ON-RESISTANCE vs SUPPLY
VOLTAGE vs SWITCH VOLTAGE
FIGURE 11. AUDIO ON-RESISTANCE vs SUPPLY
VOLTAGE vs SWITCH VOLTAGE
FIGURE 12. AUDIO ON-RESISTANCE vs SUPPLY
VOLTAGE vs SWITCH VOLTAGE
FIGURE 13. AUDIO ON-RESISTANCE vs SWITCH
VOLTAGE vs TEMPERATURE
2.45
2.50
2.55
2.60
2.65
2.70
2.75
2.80
2.85
2.90
2.95
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
r ON
(Ω
)
VCOM (V)
ICOM = 60mA
VDD = 3.6V
VDD = 2.7V
VDD = 4.6V
2.48
2.50
2.52
2.54
2.56
2.58
2.60
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
r ON
(Ω
)
VCOM (V)
VDD = 4.6V
VDD = 3.6V
VDD = 3.3V
VDD = 3.0V
VDD = 4.0V
ICOM = 60mA
0
2
4
6
8
10
12
14
16
18
-1.5
-0.5
0.5
1.5
2.5
3.5
4.6
VDD = 4.6V
VDD = 3.0V
r ON
(Ω
)
VCOM (V)
ICOM = 60mA
VDD = 3.6V
1.0
1.5
2.0
2.5
3.0
3.5
4.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
r ON
(
Ω
)
VCOM (V)
VDD = 3.0V
+85°C
+25°C
-40°C
ICOM = 60mA
ISL54217
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