参数资料
型号: FSA8009UMX
厂商: Fairchild Semiconductor
文件页数: 2/8页
文件大小: 0K
描述: IC AUDIO JACK DETECTOR/SW 10UMLP
标准包装: 1
类型: 音频插孔探测器,带视频开关
应用: MP3 播放器,便携式媒体播放器
安装类型: 表面贴装
封装/外壳: 10-UFQFN
供应商设备封装: 10-uMLP(1.4x1.8)
包装: 标准包装
其它名称: FSA8009UMXDKR
2010 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSA8009 Rev. 1.0.2
2
FSA8009
Audio
Jack
Send
/End
De
tection
with
MIC
/Video
Switch
Pin Descriptions
Name Pin #
Type
Description
R_VDD
1
Output
Optional pull-up voltage, with a resistor divider, sets the reference voltage on the REF pin
EN
2
Input
Device enable, low-power mode
0
Device inactive
(1)
1
Device active
(1)
SEL
3
Input
MIC / VID switch select pin
0
VID = J_MIC
(1)
1
MIC = J_MIC
(1)
S/E
4
Output
Indicates state of send /end key press, open-drain output requires
pull-up resistor
0
Press
(1)
1
No key press
(1)
VID
6
Switch
Video switch path; connects between video source and audio jack microphone pin
VDD
5
Power
Supply voltage
MIC
7
Switch
Microphone switch path that goes to the CODEC microphone amplifier input
J_MIC
8
Switch
Microphone switch path that connects to the microphone, SEND/END key, and jack pole video
REF
10
Input
Reference voltage used to detect a send / end key press, through a resistor divider off R_VDD or
external voltage reference
GND
9
Ground
Ground for both the audio jack and the PCB
Note:
1.
0 = VOL or VIL; 1 = VOH or VIH.
Figure 2. UMLP Pin Assignment (Through View)
Table 1.
Device Configuration in Reset and Active States
EN
SEL
MIC
VID
R_VDD
S/E
0
X
3-State
GND
HIGH
1
J_MIC
Open
VDD
Active
1
0
Open
J_MIC
GND
LOW
3
4
5
10
9
8
6
7
1
2
R_VDD
EN
SEL
S/E
VDD
VID
MIC
J_MIC
GND
REF
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