FSA8008 / FSA8008A – Audio Jack Detection and Configuration Switch
March 2011
FSA8008/FSA8008A
Audio Jack Detection and Configuration Switch
Features
Accessory Plug-In
Detection
3- or 4-Pole Audio Jack
Send/End Key Pressed
FSA8008
Decreased Timing
Functionality
FSA8008A for Sensitive
Send/End Keys
Switch Type
MIC
V
DD
2.5 to 4.4V
V
IO
1.6 to V
DD
THD (MIC)
0.01% Typical
ESD (Air Gap)
15kV
Operating Temperature
-40°C to 85°C
10-Lead UMLP
Package
1.4x1.8x0.5mm, 0.4mm Pitch
FSA8008
KC
Top Mark
FSA8008A
KD
FSA8008UMX
Ordering Information
FSA8008AUMX
Description
The FSA8008/FSA8008A is an audio jack detector and
switch for 3- or 4-pole accessories. In addition to detection,
the FSA8008/FSA8008A features an integrated MIC switch
that allows the processor to configure the audio jack. The
architecture is designed to allow common third-party
headphones to be used for listening to music from mobile
handsets, personal media players, and portable peripheral
devices.
Determines 3- or 4-Pole Audio Jacks
Removes Audio Jack Pop-n-Click Caused by MIC Bias
Detects Audio Jack Accessories:
- Standard Headphones
- Headsets with MIC
- Send / End Button Presses
Integrates a MIC Switch for 4-Pole Configuration
Related Resources
FSA8008/FSA8008A Demonstration Board
For samples and questions, please contact:
Analog.Switch@fairchildsemi.com.
Applications
3.5mm and 2.5mm Audio Jacks
Cellular Phones, Smartphones
MP3 and PMP
Typical Application
Figure 1. Mobile Phone Example
© 2011 Fairchild Semiconductor Corporation
FSA8008 / FSA8008A • Rev. 1.0.3
www.fairchildsemi.com
FSA8008 / FSA8008A – Audio Jack Detection and Configuration Switch
Physical Dimensions
0.15 C
2X
1.40
A
B
0.663
1.700
0.563
9X
1
PIN #1 QUADRANT
1.80
0.400
0.15 C
2.100
2X
TOP VIEW
0.55 MAX.
0.10 C
0.152
SEATING
PLANE
0.225
10X
RECOMMENDED LAND PATTERN
1.450
0.550
9X
0.450
0.08 C
0.050
C
SIDE VIEW
0.400
1.850
0.225
3
6
1
10X
OPTIONAL MINIMIAL TOE LAND PATTERN
0.40
9X
0.35
0.45
0.45
0.55
10
0.15
10X
0.25
0.10 C A B
0.05 C
0.100
0.500
0.100
BOTTOM VIEW
0.100
DETAIL A
PIN #1 TERMINAL
SCALE: 2X
A. DIMENSIONS ARE IN MILLIMETERS.
B. DIMENSIONS AND TOLERANCES PER
ASME Y14.5M, 1994
C. DRAWING FILENAME: UMLP10Arev2
Figure 4. 10-Lead UMLP Package Drawing
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without
notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most
recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which
covers Fairchild products.
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
Ordering Information
Part Number
FSA8008UMX
FSA8008AUMX
Operating Temperature Range
-40 to +85°C
Top Mark
KD
KC
Package
10-Lead 1.4 x 1.8 x 0.55mm, 0.4mm pitch Ultrathin
Molded Leadless Package (UMLP)
© 2011 Fairchild Semiconductor Corporation
FSA8008 / FSA8008A • Rev. 1.0.3
9
www.fairchildsemi.com
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