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