參數資料
型號: FSA9280AUMX
廠商: Fairchild Semiconductor
文件頁數: 4/30頁
文件大小: 0K
描述: IC USB MULTIMEDIA SWITCH 20-UMLP
標準包裝: 1
功能: USB 開關
電路: 3:1
電壓電源: 單電源
電壓 - 電源,單路/雙路(±): 3 V ~ 4.4 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 20-UFQFN 裸露焊盤
供應商設備封裝: 20-UMLP(4x3)
包裝: 標準包裝
其它名稱: FSA9280AUMXDKR
2009 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA9280A Rev 1.1.0
12
FS
A9
2
80A
US
B
Po
rt
Mu
lt
im
edia
Swi
tc
h
,
Fea
turi
n
g
Automatic
Se
lect
a
nd
Ac
ces
s
ory
Detection
5.2. Audio Accessory Detection
Audio
accessories are detected when the ID_CON pin resistance to GND is approximately 1M. Configurations for this audio
accessory shown in Figure 12 and Figure 13 .
Figure 12.
Audio Accessory with Just Send/End Button (1% or 5% Resistors)
604
2
k
ID_
CON
FSA9280A
Phone
Headset with Remote
ID
Detect
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
976
k
SEND/
END
Hold
Right Earpiece
Left
Earpiece
Microphone
VBUS_IN
DP_
CON
DM_
CON
604
806
806
1.21k 2k
2
k
2
k
2.43
k
2.8
k 3.24k 3.57k
Figure 13.
Audio Accessory with Full Wired Remote Control (1% Resistors)
The FSA9280A can detect and differentiate between regular
key presses, long key presses, and a stuck key. The
definition of the key press timing is user configurable by
writing the Timing Set 1 (08h) and Timing Set 2 (09h)
registers. Timing diagrams for the key press detection are
shown below in Figure 14 and Figure 15.
Figure 14.
Regular Key-Press Timing Diagram
Figure 15.
Long Key-Press Timing Diagram
Key Depressed,
Timing starts
tKP
tLKP
Error
Key Press
Long Key Press
INTB
t0
P read
and clear
INTB Released
after P read
Key
KP Bit Set
tKP-t0 = Key
Press bits value
tLKP-t0 = Long Key
Press bits value
LKP Bit Set
LKR Bit Set
P read
and clear
P read
and clear
INTB Released
after P read
INTB Released
after P read
tKP
tLKP
t0
INTB
Key
tKP-t0 = Key
Press bits value
tLKP-t0 = Long Key
Press bits value
2k?
ID_
CON
FSA 9280A
Phone
Headset with Send/End Only
ID
Detect
1 M?
SEND /
END
Right Earpiece
Left
Earpiece
Microphone
VBUS_IN
DP_
CON
DM _
CON
相關PDF資料
PDF描述
PIC16C55-RCI/SO IC MCU OTP 512X12 28SOIC
PIC16C55-10/SP IC MCU OTP 512X12 28DIP
PIC18F67K22T-I/MR IC MCU 8BIT 128KB FLASH 64QFN
PIC18F67K22T-I/MRRSL MCU 8BIT 128K FLASH 64-QFN
PIC18F2423T-I/SO IC PIC MCU FLASH 8KX16 28SOIC
相關代理商/技術參數
參數描述
FSA9280AUMX_12 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:USB Port Multimedia Switch Featuring Automatic Select and Accessory Detection
FSA9280AUMX_F065 功能描述:開關 IC - 各種 USB Port 3:1 Switch RoHS:否 制造商:Fairchild Semiconductor 開啟電阻(最大值): 電源電壓-最大:4.4 V 電源電壓-最小:2.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:WLCSP-9 封裝:Reel
FSA9285AUCX 制造商:Fairchild Semiconductor Corporation 功能描述:IC MULTIMEDIA SWITCH 20-WLCSP
FSA9285UCX 功能描述:電源開關 IC - USB MCPC compliant USB multimedia switch RoHS:否 制造商:Micrel 電源電壓-最小:2.7 V 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:SOIC-8 封裝:Tube
FSA9288A 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:USB 2.0 Accessory Detection Switch with 28V FET