Dual SPM Detector

Page 14 of 16

MX641 Preliminary Information

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ã2001 MX-COM, Inc.

www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054

Doc. # 20480115.004

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by their respective companies.

Notes

Min.

Typ.

Max.

Units

Channel Outputs

Output Logic ‘1’

(Enabled)

1

4.6

V

Output Logic ‘0’

1

0.4

V

Output Leakage Current

High-Z Output

2

-5.0

5.0

µA

Input Amplifier

D. C. Gain

60.0

dB

Bandwidth (-3dB)

100

Hz

Input Impedance

1.0

M

Ω

Overall Performance

12kHz Detect Bandwidth

3

11.82

12.18

kHz

12kHz Not-detect Frequencies

(Below 12kHz)

3

11.52

kHz

12kHz Not-detect Frequencies

(Above 12kHz)

3

12.48

kHz

16kHz Detect Bandwidth

3

15.76

16.24

16kHz Upper Decode Band Edge

(Below 16kHz)

3

15.36

kHz

16kHz Lower Decode Band Edge

(Above 16kHz)

3

16.64

kHz

Level Sensitivity

Controlled Sensitivity Mode

3,4,12,15

2.6

1.6

0.6

dB(ref.)

Preset Sensitivity Mode

3,4,5,16

-25.4

-26.4

-27.4

dB(ref.)

Signal Quality Requirements

Signal-to-Noise

(Amp Input)

4,8,9,10

22.0

20.0

dB

Signal-to-Voice

(Amp Input)

4,8,9,11

-36.0

-40.0

dB

Signal-to-Voice

(Amp Output)

4,8,10,11

-1.0

-27.0

dB

Channel Outputs

(Ch1 and Ch2) Figure

4

Mode Change Time

6

500

ns

Tone Follower Mode (Table 3)

Response and De-Response

Time

3, 4, 7

10.0

ms

Packet Mode (Table 3)

Response and De-Response

Time

3, 4, 7

40.0

48.0

ms

Note:

1.

Tone Follower or Packet mode enabled; see Table 3

2.

Tristate selected; see Table 3.

3.

With adherence to Signal-to-Voice and Signal-to Noise specifications.

4.

12kHz and/or 16kHz system.

5.

With Input Amp gain setting = 0dB.

6.

Time taken to change between any two of the operational modes: Tone Follower, Packet or Tristate,

and with a maximum capacitive load of 30pF on an output.

7.

The time delay, after a valid serial data load (or after device powerup), before the condition of the

outputs can be guaranteed correct.

8.

Immunity to false responses and/or de-responses.

9.

Common Mode SPM and balanced voice input signal.

10. With SPM and voice signal amplitudes balanced; to avoid false de-responses due to saturation, the

peak-to-peak voice + noise level at the output of the Input Amp should be no greater than the dynamic