Datasheet MSLSA (MSI)

6/2017
Low Power Spectrum Analyzer Data Sheet Description Features
The MSLSA is a single chip 1/6th octave 6 Selectable Power Modes band spectrum analyzer whose center frequencies Regular Power Consumption: 5 mA at +5V are controlled by a single master clock. The Low Power Consumption: 2 mA at +5VDC center frequencies are set at 1.12246, 1.2599, Powerdown Mode 1.4142, 1.5874, 1.78179 and 2 (normalized). Operates from 3.0 V to 5.5 VDC The sample to corner is 100:1 for the 2 Hz 6 Six pole Bandpass filters in one package normalized output and 178.16:1 at the 1.122 Hz Digitally controlled gain stage normalized output. The MSLSA’s 1.12246 Hz Two Uncommitted Op Amps output is 55.1 kHz (Clock at 5 MHz). No Microprocessor Needed Multiple MSLSA can be connected for spectrum
MSLSA
analysis by taking the master clock of the high
Applications
frequency filter and dividing by 2. Real-Time Spectrum Analysis Audio and Ultrasonic Analysis The MSLSA includes two uncommitted op amps Vibration Analysis for adding additional fixed gain for microphone or
Ordering Information
other low level applications. A digitally program- mable gain stage provides 0, 10 or 20 dB of Part Number Package Operating Temperature gain. The PD pin selects power down, low MSLSAN SOIC-16N -40o to +85o C power for ultrasonic applications and regular All packages are 150 mil wide (Narrow SOIC) power for operation at 2 MHz center frequency.
Absolute Maximum Ratings
The MSLSA is fabricated in 0.6 um CMOS Power Supply Voltage +6V process for low power consumption and opera- Storage Temperature Range -60o to +150oC tion from 3.0 to 5.5 VDC. The MSLSA is Operating Temperature Range -40o to +85oC available in a 16-lead SOIC-16 Narrow package. 0 -10 -20 -30
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-60 -70 -80 Figure 1: Normalized Frequency Response www.mix-ssig.com ©2007-2 2017 Mixed Signal Integration 1