6/2017
Sin g le Ch ip Sp e ctr u m An a ly z e r
Da ta Sh e e t
De s cr ip tio n
Fe a tu r e s
th
Selectable Power Modes
The MSSCSA is a single chip 1/6 octave 6
band spectrum analyzer whose center frequencies
are controlled by a single master clock. The
center frequencies are set at 1.12246, 1.2599,
1.4142, 1.5874, 1.78179 and 2 (normalized).
The sample to corner is 25:1 for the 2 Hz nor-
malized output and 44.545:1 at the 1.122 Hz
normalized output. The MSSCSA’s 1.178179 Hz
output is 2 MHz (Clock at 25 MHz).
Regular Power Consumption: 17 mA at +5V
Low Power Consumption: 6 mA at +5VDC
Powerdown Mode
Operates from 3.0V to 5.5 VDC
6 Six pole Bandpass filters in one package
Digitally controlled gain stage
Two Uncommitted Op Amps
No Microprocessor Needed
Multiple MSSCSA can be connected for spectrum
analysis by taking the master clock of the high
frequency filter and dividing by 2.
Ap p lica tio n s
Real-Time SpectrumAnalysis
Audio and Ultrasonic Analysis
Vibration Analysis
The MSSCSA includes two uncommitted op amps
for adding additional fixed gain for microphone or
other low level applications. A digitally program-
mable gain stage provides 0, 10 or 20 dB of
gain. The PD pin selects power down, low
power for ultrasonic applications and regular
power for operation at 2 MHz center frequency.
O r d e r in g In fo r m a tio n
Part Number
Package
Operating Temperature
o o
-40 to +85 C
MSSCSAN
SOIC-16N
The package is 150 mil wide (Narrow SOIC)
Ab s o lu te M a x im u m Ra tin g s
Power Supply Voltage
+6V
o
The MSSCSAis fabricated in 0.6 um CMOS
process for low power consumption and opera-
tion from 3.0 to 5.5 VDC
Storage Temperature Range
Operating Temperature Range
-60 to +150 C
o
-40 to +85 C
0
-10
-20
-30
-40
-50
-60
-70
-80
Figure 1: Normalized Frequency Response
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