ia3222 integration, ia3222 Datasheet - Page 16

• Manufacturer Part Number: ia3222
• Description: Ia3222/ia3223 Ez Daa? Chipset With Analog Interface
• Manufacturer: integration

1.3
1.2
1.1
0.9
0.8
0.7
0.6
0.5
13
12
11
10
44
40
36
32
28
24
20
16
9
8
7
6
1
200
20
24
Figure 11: DC voltage versus current, no regulation
Return loss (dB) with resistive loads versus frequency (Hz)
LP[5:4]=00
Figure 9: Snoop gain versus line DC voltage
600
Figure 13: Return loss for resistive modes
DC voltage drop (V) versus loop current (mA)
30
40
1000
Snoop gain versus DC voltage (V)
600 Ω, LP[5:4]=00
900 Ω, LP[5:4]=01
36
LP[5:4]=01
1400
Low gain
60
1800
42
LP[5:4]=10
80
2200
900 Ω, LP[5:4]=00
600 Ω, LP[5:4]=11
High gain
48
2600
100
54
LP[5:4]=11
3000
3400
120
60
-46
-47
-48
-49
-50
-51
-52
-53
-54
34
32
30
28
26
24
22
20
18
16
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
200
9
8
7
6
5
4
24
10
Figure 12: DC voltage versus current, TBR21 regulation
Return loss (dB) w ith complex loads versus frequency (Hz)
Figure 10: Snoop noise versus line DC voltage
600
TBR21 regulation mode, normal headroom
Figure 14: Return loss for complex modes
30
Aus tralia, LP[5:4]=01
TBR21, LP[5:4]=01
Snoop noise (dBV) versus DC voltage (V)
20
Voltage vs. current, TBR21 current limit
1000
Voltage vs. current, TBR21 current limit
36
1400
Low gain
30
Loop current (mA)
1800
42
40
2200
New Zealand, LP[5:4]=01
High gain
IA3222/IA3223
48
TBR21 requirement
2600
50
54
3000
3400
60
16
60