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参数资料
| 型号： | FSA9280AUMX |
| 厂商： | Fairchild Semiconductor |
| 文件页数： | 10/30页 |
| 文件大小： | 0K |
| 描述： | IC USB MULTIMEDIA SWITCH 20-UMLP |
| 标准包装： | 1 |
| 功能： | USB 开关 |
| 电路： | 3:1 |
| 电压电源： | 单电源 |
| 电压 - 电源，单路/双路(±)： | 3 V ~ 4.4 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-UFQFN 裸露焊盘 |
| 供应商设备封装： | 20-UMLP（4x3） |
| 包装： | 标准包装 |
| 其它名称： | FSA9280AUMXDKR |
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2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA9280A Rev 1.1.0
18
FS
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2
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US
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lect
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ory
Detection
9.4. Capacitance
Symbol
Parameter
VBAT
(V)
Condition
TA = -40 to +85°C
Unit
Min.
Typ.
Max.
CONUSB
DP_CON, DM_CON On Capacitance (USB Mode)
3.8
VBIAS=0.2V, f=1MHz
8
pF
9.5. Switch Path AC Electrical Characteristics
All typical values are for VBAT=3.8V at TA=25C unless otherwise specified.
Symbol
Parameter
Condition
TA = -40 to +85°C
Unit
Min.
Typ. Max.
Xtalk
Active Channel Crosstalk
DP_CON to DM_CON
Audio Mode
f=20kHz, RT=32, CL=0pF
-50
dB
USB Mode
f=1MHz, RT=50, CL=0pF
-60
f=240MHz, RT=50, CL=0pF
-40
OIRR
Off Isolation
Audio Mode
f=20kHz, RT=32, CL=0pF
-90
dB
USB Mode
f=1 MHz, RT=50, CL=0pF
-90
PSRR
Power Supply Rejection Ratio, MIC on VBUS_IN
Power Supply Noise 300mVpp,
f=217Hz
-100
dB
THD
Total Harmonic Distortion (Audio Path)
20Hz to 20kHz, RL=32/16,
Input Signal Range 2VPP
0.03
%
20Hz to 20kHz, RL=32/16,
Input Signal Range -1.2V to 1.2V
0.05
tSK(P)
Skew of Opposite Transitions of the Same
Output (USB Mode)
tr=tf=750ps (10-90%) at 240MHz,
CL=0pF, RL=50
30
ps
tI2CRST
Time When I2C_SDA and I2C_SCL Both LOW
to Cause a Reset
See Figure 6
30
ms
tINTMASK
Time after INT Mask
Cleared to “0“ until INTB
Goes LOW to Signal the Interrupt after
Interruptible Event while INT Mask Bit S
et to “1”
See Figure 18
10
ms
tSDPDET
Time from VBUS_IN Valid to VBUS_OUT Valid with
Charger FET Closed and USB Switches Closed
for USB Standard Downstream Port
See Figure 10
130
ms
tCHGOUT
Time from VBUS_IN Valid to VBUS_OUT Valid with the
Charger FET Closed for Both USB Charging
Ports (CDP and DCP)
See Figure 9
170
ms
tCARKIT
Time from VBUS_IN Valid to Car Kit Type 1 or
Type 2 Charger Detected
See Figure 11
200
ms
tCHGDET
Time from VBUS_OUT Valid to CHG_DET Output
LOW for Both USB Charging Ports (CDP and
DCP) and for Car Kit Chargers
100
ms
tIDDET
Time from ID_CON Not Floating to INTB LOW to
Signal Accessory Attached that is ID_CON
Resistance-Based Only (VBUS_IN Not Valid)
See Figure 8
200
ms
tJIGVBUS
Time from VBUS_IN Valid to JIG LOW and
VBUS_OUT Valid with Charger FET Closed for Both
Factory Mode Operation with VBUS_IN Present
See Figure 25
200
ms
Time from VBUS_IN Valid to JIG LOW for Factory
Mode Operation without VBUS_IN Present
See Figure 26
200
ms
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