MX105ADW CMLMICRO [CML Microcircuits], MX105ADW Datasheet - Page 9

• Manufacturer Part Number: MX105ADW
• Description: Tone Detector
• Manufacturer: CMLMICRO [CML Microcircuits]

Tone Detector
5.9 Calculate Maximum De-response Time
For improved de-response time, a diode (1N914 or similar) can be placed between pins 5 and 6, as shown in Figure 3.
The formula and figure below show the approximate time the MX105A will take to turn off after an in-band signal has been
removed. The effect of this diode is to greatly reduce the turn-off time with signal input amplitudes greater than 300
mV
© 1997 MX•COM, INC.
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA
RMS
. This graph is for V
DD
www.mxcom.com Tele: 800 638 5577 910 744 5050 Fax: [phone]
3.8
3.6
3.4
3.2
3.0
2.8
2.6
2.4
2.2
Figure 4: K
= 5V; for lower V
0
where: V
80
DT
T
OFF
Factor for T
DD
160
T
TH
OFF
KDT increases.
is the detect filter sensitivity.
3 ln
Input Signal Level (mV
240
9
K
DT
OFF
V
V
IN
TH
320
MAX
vs. Signal Input Amplitude
R3 C3
All trademarks and service marks are held by their respective companies.
R3 C3
400
A
A
RMS
480
)
560
MX105A PRELIMINARY INFORMATION
640
720
Doc.# 20480133.003