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FSA859 — Dual-Voltage, 0.8 SPDT Analog Switch with Power-Off Isolation
March 2013
FSA859
—
Dual-Voltage, 0.8Ω SPDT Analog Switch with
Power-Off Isolation
Features
Power-Off Isolation (V
CC=
0V)
0.8Ω Maximum On Resistance (R
ON
) for 4.5V V
CC
0.25Ω Maximum R
ON
Flatness for 4.5V V
CC
Broad V
CC
Operating Range: 1.65V to 5.5V
Fast Turn-On and Turn-Off Times
Control Input Referenced to V
IO
Break-Before-Make Enable Circuitry
0.5mm WLCSP packaging
ESD Performance
Description
The FSA859 is a high-performance Single-Pole /
Double-Throw (SPDT) analog switch for audio
applications driven by low voltage (1.8V) baseband
processors or ASICs. The device features ultra-low R
ON
of 0.8 (maximum) at 4.5V V
CC
and operates over the
wide V
CC
range of 1.65V to 5.5V. The device is
fabricated with sub-micron CMOS technology to achieve
fast switching speeds and is designed for break-before-
make operation.
The FSA859 interfaces between the low-voltage ASIC
and regular audio amplifiers and CODECs operating up
to the supply range of 5.5V through the dual-voltage
supplies of V
IO
and V
CC
. The V
IO
supply operates the
control circuitry, allowing for 1.8V (typical) signals on the
control pin (Sel).
-
-
-
HBM: JESD22-A114, I/O to GND
CDM: JESD22-C101
IEC61000-4-2 Contact / Air
8kV
500V
8kV / 15kV
Applications
Cellular Phone
Portable Media Player
PDA
IMPORTANT NOTE:
For additional performance information, please contact
analogswitch@fairchildsemi.com.
Ordering Information
Part
Number
FSA859UCX
Operating
Top Mark
Temperature Range
-40°C to +85°C
N2
Eco Status
Green
Package
8-Ball WLCSP, 0.5mm pitch
Packing
Method
Tape and
Reel
For Fairchild’s definition of “green” Eco Status, please visit:
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