Seven Band Graphic Equalizer

Data Sheet

Typical Application______________

Multiplexor Operation

The DC peak output for measurement is se-

lected using the reset and strobe pins. Reset

high resets the multiplexor. Reset low enables

the strobe pin. After the first strobe leading

edge, 63Hz output is on OUT. Each additional

strobe leading edge advances the multiplexor

one channel (63Hz, 160Hz, 400Hz, 1kHz,

2.5kHz, 6.25kHz, 16kHz etc.) and this will re-

peat indefinitely. The multiplexor read rate is

also the output decay time control. Each read

decays that channel approximately 10%. The

strobe timing is shown below:

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ment.

tr

trs

RESET

ts

tss

STROBE

to

OUTPUT

63 Hz

160 Hz

400 Hz

1 kHz

2.5 kHz

6.25 kHz

16 kHz

63 Hz

160 Hz

tr - Reset Pulse Width

100 nS min

trs - Reset to Strobe

Delay

ts - Strobe Pulse Width

18 uS min

tss - Strobe to Strobe

Delay

to - Output Settling Time

36 uS min

(with Cload = 22 pF and Rload = 1 Mohm)

Strobe Timing Diagram

Part Number Package Operating Temperature

MSGEQ7N

8 Pin 150 mils SOIC

0-70

C

MSGEQ7P

8 Pin 300 mils PDIP

0-70

C

o

o