CPC5620 Datasheet, PDF (15/18 Pages) Clare, Inc. – LITELINK III Phone Line Interface IC (DAA)

INTEGRATED CIRCUITS DIVISION
CPC5620/CPC5621
6. LITELINK Performance
The following graphs show LITELINK performance using the North American application circuit shown in this data
sheet.
Figure 6. Receive Frequency Response at RX
2
0
-2
-4
Gain
-6
dBm
-8
-10
-12
-14
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 9. Transmit THD on Tip and Ring
0
-20
-40
-60
THD+N
dB
-80
-100
-120
-140
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 7. Transmit Frequency Response at TX
2
0
-2
-4
Gain
dBm
-6
-8
-10
-12
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 8. Receive THD on RX
0
-20
-40
-60
THD+N
dB
-80
-100
-120
-140
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 10.Transhybrid Loss
0
-5
-10
-15
THL
-20
dB
-25
-30
-35
-40
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency
Figure 11.Return Loss
60
55
50
Re tur n
Loss 45
(dB)
40
35
30
0
500
1000
1500
2000
2500
3000
3500
4000
Frequency (Hz)
R05
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