FX651 Datasheet, PDF (11/16 Pages) CML Microcircuits – SPM and Security Subsystem

SPM and Security Subsystem
FX651
Operating Characteristics (continued)
AC Parameters
Tx Output
Tx O/P Impedance (Tx mode)
Tx O/P Impedance (Rx mode)
Output Frequency
Output Distortion
Signal Level
Signal Level
Response/De-response Times
Rise/Fall Times
Rx Input
Rx I/P Impedance
Rx I/P Amp Voltage Gain
12kHz (SPM) Channel Performance
With Interfering Speech & Security Tone
12kHz Input Signal Level
12kHz Decode Min Signal Level
12kHz No Decode Max Signal Level
Response Delay
De-response Delay
Detect Bandwidth
Not Detect Frequencies (below 12kHz)
Not Detect Frequencies (above 12kHz)
18kHz (Security Tone) Channel Performance
With Interfering Speech & SPM Tone
18kHz Input Signal Level
18kHz Decode Min Signal Level
18kHz No Decode Max Signal Level
Response/De-response Times
Detect Bandwidth
Not Detect Frequencies (below 18kHz)
Not Detect Frequencies (above 18kHz)
Notes
4
4
5
5, 6
5, 7
8
9
10
11
12
12
12
12
12, 13
12, 13
12
12
12
14
15
15
15
15
15, 16
15
15
15
Min. Typ. Max. Units
1.0
300 500
17.82
3.0
3.4
2.0
2.2
2.5
18.18
2
3.7
2.4
100
5
kΩ
kΩ
kHz
%
Vp-p
Vp-p
µs
ms
10.0
MΩ
500
V/V
25
40
40
11.82
12.48
800
mV
50
mV
mV
50
ms
50
ms
12.18 kHz
11.52 kHz
kHz
10
16.92
19.75
1.2
V
40
mV
mV
8
ms
19.08 kHz
16.25 kHz
kHz
© 1997 Consumer Microcircuits Limited
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D/651/4