Absolute Maximum Ratings
B+ Supply Voltage input
Min.
-0.30
-0.30
-0.30
-0.40
0.00
Max.
25.00
7.00
Units
volts DC
volts DC
volts DC
volts DC
ꢂC
Note
+5V Supply Voltage input
Voltage on logic inputs or outputs
Voltage on analog input or outputs
Storage Temperature
5.30
1
20.00
85.00
50.00
Operating Temperature
0.00
ꢂC
2.2 Operating Characteristics
For the following conditions unless otherwise specified:
T=25C, DC supply voltage B+ = +12VDC, GND = 0V
0dB ref. = 750mV )
(V
rms DD = 5VDC
Composite CTCSS test Signal: 300 mVrms 1KHz test tone, 75 mVrms band limited 6KHz
gaussian white noise, 30 mVrms CTCSS tone
Xtal Frequency = 4.0mhz, 100ppm max
For additional Operation Characteristics refer to MX-COM MX465 data sheet
Characteristic
Supply voltage
Minimum
Typical
Maximum
Units
Note
B+ DC Supply Voltage Input
+5V DC Supply Voltage Input
DC Supply Current
8
3
12
5
25
7
VDC
VDC
6
10
ma
MONITOR
Input Logic specifications for PTT, PTL, CS,
Input Low Voltage
Input High Voltage
1.50
VDC
VDC
1
1
3.50
Output Logic Specifications for DECODE
(open collector output)
10
Output Current (sink)
mA
Analog Outputs TXOUT, RXOUT, TONEOUT
Impedance
1000
ꢃ
TXOUT Level
RXOUT Level
TONEOUT Level
Analog Inputs TXIN, RXIN
Impedance
750
500
mVrms
mVrms
mVrms
500
1000
ꢃ
TXIN Level
RXIN Level
100
30
300
500
mVrms
mVrms
TX and RX Audio Filter
Total Harmonic Distortion
Output Noise Level (input AC gnd)
Passband
2
2
5
%THD
mVrms
Hz
2
300
-1
3000
1
Bandpass Ripple
dB
Passband Gain at 1KHz
CTCSS Decoder
0
dB
Input signal level
Response Time
Deresponse Time
Upper Decode Band Edge
30
436
250
250
mVrms
ms
ms
2
3,4,5
3,4,5
3,6
180.00
1.005 F
.995 F
Hz
i
i+1
Page 5
20480150.001 MX-COM ꢀ 1996
CMLMICRO [ CML MICROCIRCUITS ]
