Specification
Absolute Maximum Ratings
Exceeding the maximum rating can result in module damage. Operation of the module outside the operating limits
is not implied.
Supply voltage
6.0V to 26.0V
Operating temperature range: CM1481
0°C to +70°C
Storage temperature range:
CM1481
-20°C to +85°C
Operating Limits
All module characteristics are measured under the following conditions unless otherwise specified:
VIN = 6.0V to 12.0V, TOP = 0°C to +70°C.
Characteristics
See Note
Min.
Typ.
Max.
Unit
Supply Voltage (VIN)
Operating Current (Tx/Rx)
Standby Current
LED Drive Current
Current Limits (PTT and Mute O/Ps)
Input Sensitivity
6.0
-
-
-
26.0
-
-
15.0
50.0
-
-
±0.1
-
V
mA
mA
mA
mA
mVrms
mVrms
%
9.5
2.5
-
-
-
308
-
250
7
1
2
-
31.0
Tone Out Level
-
-
-
Tone Out Accuracy
Alert-Tone Output Level
Tone Decode Bandwidths
CCIR
EEA
ZVEI
Signal -to-Noise Performance
Logic “1” In
Logic “0” In
mV p - p
-
-
-
-
3.5
0
±2.30
±2.30
±3.80
100
-
-
-
-
% fc (Hz)
% fc (Hz)
% fc (Hz)
3
6
6
%
V
V
13.8
1.0
LED Logic “1” Out
LED Logic “0” Out
Audio Switch Signal
Alert Output Impedance
4.2
-
-
-
-
V
V
-
-
-
-
-
-
-
-
0.4
5.0
-
-
-
-
V p - p
Ω
4
5
140
100
20.0
10.0
-
kΩ
MΩ
kΩ
kHz
MHz
Signal Input Impedance
Signal Output Impedance
Configuration Clock Rate
On-Board Xtal Frequency
1.0
-
4.0
Notes
1
Under pure-tone conditions.
2. The ‘Alert’ square-wave driving an 8Ω load with on-board LINK in position (see Figure 4).
3. At -4.0dBs S/N (using a 100ms CCIR signal at 248 mVrms).
4. With on-board LINK in position.
5. With on-board LINK removed.
6. PTT, CALL, QUIET/OPEN, BUSY, CONFIG. Inputs.
7. The standy condition is when the CM1481 is in the Quiet mode.
23
CMLMICRO [ CML MICROCIRCUITS ]
