FSA839 Datasheet, PDF (1/10 Pages) Fairchild Semiconductor – Low-Voltage, 0.8Ω SPDT Analog Switch with Power-Off Isolation

January 2009
FSA839 — Low-Voltage, 0.8Ω SPDT Analog Switch with
Power-Off Isolation
Features
ƒ Power-Off Isolation (VCC=0V)
ƒ 0.8Ω Maximum On Resistance (RON) for 4.5V VCC
ƒ 0.25Ω Maximum RON Flatness for 4.5V VCC
ƒ Broad VCC Operating Range: 1.65V to 5.5V
ƒ Fast Turn-On and Turn-Off Times
ƒ Control Input Switching Thresholds Independent
of VCC
ƒ Break-Before-Make Enable Circuitry
ƒ 0.4mm WLCSP Packaging
ƒ ESD Performance
- HBM per JESD22-A114, I/O to GND: 8kV
- CDM per JESD22-C101:
500V
- IEC61000-4-2 Contact / Air: 8kV / 15kV
Applications
ƒ Cellular Phone
ƒ Portable Media Player
ƒ PDA
Description
The FSA839 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 RON
of 0.8Ω (maximum) at 4.5V VCC and operates over the
wide VCC 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 FSA839 interfaces between the low-voltage ASIC
and regular audio amplifiers and CODECs operating up
to a 5.5V supply range. The control circuitry allows for
1.8V (typical) signals on the control pin (Sel).
IMPORTANT NOTE:
For additional performance information, please contact
[e-mail].
Ordering Information
Part Number
Operating
Temperature Range
Top Mark
FSA839UCX
-40°C to +85°C
N3
Eco Status
Package
Green
6-Ball WLCSP, 0.4mm Pitch
Packing
Method
Tape and
Reel
For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html.
© 2008 Fairchild Semiconductor Corporation
FSA839 • Rev. 1.0.0
Figure 1. Analog Symbol
www.fairchildsemi.com