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Off-hook Characteristics (MTK-40131 System)
Table 10: Off-hook Characteristics (MTK-40131 System)
Conditions: see paragraph "operating conditions"
Parameter
Conditions
Gtx
Relative gain, transmit direction
Gain programming step
Step accuracy
Gain tolerance (ref. programmed value)
Grx
Relative gain, receive direction
Gain programming step
Step accuracy
Gain tolerance (ref. programmed value)
dGlt
Long-term gain stability
Gttx
Gain tracking, TX path
+3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
Gtrx
Gain tracking, RX path
+3 to -40 dBm0
-40 to -50 dBm0
-50 to -55 dBm0
IMDtx
Intermodulation distortion, TX path
IMDrx
Intermodulation distortion, RX path
Sdtx
Signal to total distortion ratio, TX (gain= 0 dB)
-0 to -10 dBm0
-20 dBm0
-30 dBm0
-40 dBm0
-45 dBm0
Sdrx
Signal to total distortion ratio, RX (gain= - 7 dB)
-0 to -10 dBm0
-20 dBm0
-30 dBm0
-40 dBm0
-45 dBm0
SFNrx
Single frequency noise
300 to 3400 Hz, all out of band freqs.
700 to 1100 Hz in band 300 to 3400Hz
Longitudinal balance
Resistor matching
Notes:
1. User programmable.
2. Covers variations within the permit-
ted ranges of supply voltage and tem-
perature during any one year.
3. Referred to the gain at 1020 Hz
applied to the input at a level -10dBm0.
Min
-6
-0.5
-12
-0.5
-0.5
35
34.7
32.9
24.9
19.9
35
33.8
28.8
19.5
14.5
1%
40
0.1%
46
4. Intermodulation distortion measured
for all intermodulation products of any
non-harmonically related frequencies in
the range 300 to 3400 Hz for levels
between -4 and -21 dBm0.
20
MTK-40131
Max
Units
+1
dB
0.25
dB
0.1
dB
+0.5
dB
+1
dB
0.25
dB
0.05
dB
+0.5
dB
+0.5
dB
±0.3
dB
±0.6
dB
±1.6
dB
±0.3
dB
±0.6
dB
±1.6
dB
-45
dBm0
-50
dBm0
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
-40
dB
-49
dB
dB
dB
5. Intermodulation distortion measured
for all intermodulation products of a fre-
quency in the range 300 to 3400 Hz at
-9dBm0 and 50Hz at -23dBm0.
Note
1
1
2
3
3
3
3
3
3
4
4
5
5
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