03/ 2001
S e l e ct a b l e Lo w p a s s / B a n d p a s s F i l t e r
D a t a S h e e t
Fe a t u r e s
D e s cr i p t i o n
Six Filter Types In One Package
No External Components
Switched-Capacitor Filters
Low Power Operation
Low Voltage Operation
Input Multiplexor
Adjustable Gain 0, 10 or 20 dB
Small Package Size
Low Cost
The selectable lowpass/ bandpass filter IC Is a
CMOS chip that can be configured for either a
lowpass or a bandpass filte r. The lowpass
response can be a 7 pole Butterworth, Elliptic
or Bessel filter. The band pass response can be
a six pole full, third or sixth octave bandpass
filter. The device uses switched-capacitor fil-
ters and no external components (except for
decoupling capacitors) are required, Only an
external CMOS level clock is needed.
On Chip Power Save Pin
ANSI Compatible Bandpass
A four input multiplexor and externally selecta-
ble gain setting pin, along with a power down
and clock to corner ratio select pin are included
in the 16 pin version. An 8 pin version is also
available for PC board area savings. Typical
current consumption is as low as 200 uA and
the minimum operating voltage is 2.7 volts,
making the device ideal for portable applica-
tions. MSFS3, MSFS4 and MSFS6 are low cur-
rent, lower frequency versions.
Ap p l i ca t i o n s
Spectrum Analyzers
General Purpose Systems
Portable Systems
Anti-Alias Filters
Reconstruction Filters
Telecommunications
Tracking Filters
Harmonic Analysis
Noise Analysis
Data Communication
Wireless Applications
Lo w p a s s R e s p o n s e s
Ba n d p a s s R e s p o n s e s
Web Site “www.mix-sig.com”
© 2001 Mixed Signal Integration 1