FAIRCHILD FSA9485UCX

FSA9485 — USB Port Multimedia Switch Featuring
Automatic Switching and Accessory Detection
Features
Description
Audio, USB, UART, Video, Charging
Automatic Switching with Available
Interrupt
Headsets with MIC and Remote
USB Data Cable
UART Serial Link
USB Chargers (Car, CDP, DCP)
Accessory
Factory-Mode Cables
Detection
Teletype (TTY) Converter
USB OTG
CEA-936-A Car Kit
Video
Full-Speed and High-Speed
USB
2.0 Compliant
Integrated FET, Charger Detect,
USB Charging
OCP (1.5A), OVT (28V), 7V OVP
Audio
Left, Right, MIC (Negative Swing)
UART
RxD & TxD
Video
Composite
VBAT
3 to 4.4V
2
Programmability
IC
ESD
15kV IEC 61000-4-2 Air Gap
Package
25-Ball WLCSP (2.1x2.1x0.625mm)
Ordering
FSA9485UCX
Information
The FSA9485 is a high-performance multimedia
switch featuring automatic switching and accessory
detection for the USB port. The FSA9485 allows the
sharing of a common USB port to pass audio, video,
USB data / charging / On-The-Go (OTG), as well as
factory programmability.
Switch Type
Switch
Mechanism
In addition, the FSA9485 integrates detection for
accessories such as headphones, headsets (MIC /
Button), CEA-936-A Car Kit, USB chargers, and UART
data cables to use a common USB connector. The
FSA9485 can be programmed for manual switching or
automatic switching of data paths based on the
accessory detected.
With integrated 28V over-voltage protection and 1.5A
over-current protected FET, the FSA9485 integrates
common USB protection devices for VBUS.
Applications

Mobile Phones & Portable Media Players
Additional Information

For additional performance information, please
contact [email protected]
STEREO / MONO
HEADPHONES
VIDEO
USB DATA, OTG,
CHARGING
UART
FACTORY TEST
TTY CONVERTER
OCP, OVP
PROTECTION
FSA9485
FSA9280A
Figure 1.
© 2010 Fairchild Semiconductor Corporation
FSA9485 • Rev. 1.0.3
Typical Application
www.fairchildsemi.com
FSA9485 — Analog Switch USB Port Multimedia Switch Featuring Automatic Switching and Accessory
July 2012
Phone
Power
VBAT
FSA9485
VBUS_OUT
ChargerIC
CHG_DET
USB Port
MIC
Audio
Codec
FS USB
or UART
HS USB
DMB-TV
Interrupt
I2C
Audio_R
Audio_L
Detection
OCP,OVP
RxD
TxD
DM_CON
4:1
MUS
and
Charge
Pump
DP_HOST
DM_HOST
DP_CON
ID_CON
GND
V_Audio_R
V_Audio_L
Video
Charger
Detect
INT
I2C_SCL
I2C_SDA
Switch
Control
and
I2 C
Slave
VDDIO
Baseband
Processor
VBUS_IN
JIG
BOOT
Float
Detect
ADC
Detect
ID Bypass
Figure 2.
Block Diagram
Pin Configuration
1
2
3
4
5
A
INTB
VDDIO
CHG_
DET
VBUS_
OUT
VBUS_
IN
B
DP_
Host
I2C_
SDA
Audio
_L
MIC
DM_
CON
Audio
_R
DP_
CON
C
DM_
Host
I2C_
SCL
V_
Audio
_L
D
VBAT
ID_
Bypass
V_
Audio
_R
E
RxD
TxD
Figure 3.
© 2010 Fairchild Semiconductor Corporation
FSA9485 • Rev. 1.0.3
BOOT
Video
ID_
CON
JIG
GND
Pin Configuration (Top-Through View)
www.fairchildsemi.com
2
FSA9485 — Analog Switch USB Port Multimedia Switch Featuring Automatic Switching and Accessory
Block Diagram
0.03 C
E
2X
A
F
1.60
B
0.40
A1
BALL A1
INDEX AREA
1.60
D
(Ø0.200)
Cu Pad
(Ø0.300)
Solder Mask
0.40
0.03 C
RECOMMENDED LAND PATTERN
(NSMD PAD TYPE)
2X
TOP VIEW
0.06 C
0.625
0.547
0.05 C
C
D
0.378±0.018
0.208±0.021
E
SEATING PLANE
SIDE VIEWS
NOTES:
1.60
0.005
B. DIMENSIONS ARE IN MILLIMETERS.
Ø0.260±0.02
25X
0.40
1.60
A. NO JEDEC REGISTRATION APPLIES.
C A B
E
D
C
B
0.40
C. DIMENSIONS AND TOLERANCE
PER ASMEY14.5M, 1994.
D. DATUM C IS DEFINED BY THE SPHERICAL
CROWNS OF THE BALLS.
(Y) ±0.018
A
E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS
±39 MICRONS (547-625 MICRONS).
F
1 2 3 4 5
(X) ±0.018
F. FOR DIMENSIONS D, E, X, AND Y SEE
PRODUCT DATASHEET.
BOTTOM VIEW
Figure 25.
G. DRAWING FILNAME: MKT-UC025AArev2.
25-Lead, Wafer-Level Chip-Scale Package (WLCSP)
Product-Specific Dimensions
Product
D
E
X
Y
FSA9485UCX
2.10
2.10
0.25
0.25
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.
FSA9485 — Analog Switch USB Port Multimedia Switch Featuring Automatic Switching and Accessory
Physical Dimensions
Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings:
http://www.fairchildsemi.com/packaging/.
© 2010 Fairchild Semiconductor Corporation
FSA9485 • Rev. 1.0.3
www.fairchildsemi.com
40
FSA9485 — Analog Switch USB Port Multimedia Switch Featuring Automatic Switching and Accessory
41
www.fairchildsemi.com
© 2010 Fairchild Semiconductor Corporation
FSA9485 • Rev. 1.0.3