CMX981 Consumer Microcircuits Limited, CMX981 Datasheet - Page 58

• Manufacturer Part Number: CMX981
• Description: Advanceddigital Radio Baseband Processor (tetra Etc.)
• Manufacturer: Consumer Microcircuits Limited

Advanced Digital Radio Baseband Processor
Voice Codec Parameters
Digital Input
Input sample rate
Input resolution
Tone Generator
Frequency range
Frequency resolution
Gain range
Gain resolution
Harmonic distortion
Analogue Output
Gain range
Gain resolution
Gain tolerance
Speaker output impedance
Speaker offset error
Speaker signal range
Earpiece output impedance
Earpiece offset error
Earpiece signal range
Analogue Input
Load resistance
Signal range
Offset error
Gain range
Gain resolution
Gain tolerance
Filter Characteristics
Passband
Passband gain
Passband ripple
Stopband attenuation
Crosstalk
Codec Tx to Codec Rx
Codec Rx to Codec Tx
Codec to Rx
Codec to Tx
Voice Codec Notes:
 2002 CML Microsystems Plc
1. At 1.02kHz.
2. Relative to gain at 1.02kHz.
Parameter
58
Notes
1
2
2
-30.0
-30.0
-0.25
Min.
40.0
100
300
20
20
20
0
0
MCLK/1152
0.488
Typ.
TBD
15.0
2.0
2.0
1.5
0.1
14
2.0
3999.5
+0.25
-40.0
-80.0
-80.0
-80.0
-80.0
Max.
3400
40.0
22.5
550
0.1
10.0
10.0
10.0
0.1
80
80
80
0
0
%V
%V
%V
Units
Bits
m
CMX981
D/981/1
mV
mV
mV
dB
dB
dB
dB
dB
dB
k
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Hz
Hz
Hz
Hz
DD
DD
DD