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AD45048 Datasheet(PDF) 5 Page - Analog Devices

Part No. AD45048
Description  Rail-to-Rail Upstream ADSL Line Driver
Download  8 Pages
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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AD45048 Datasheet(HTML) 5 Page - Analog Devices

   
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AD45048
Rev. A | Page 5 of 8
TYPICAL PERFORMANCE CHARACTERISTICS
25
–25
–5
–10
–15
–20
0
5
10
15
20
10k
100k
1M
10M
1G
100M
FREQUENCY (Hz)
G = +10
G = +5
G = +2
G = +1
+
499
Ω
25
Ω
RG
Figure 3. Noninverting Small Signal Bandwidth
(VS = ±6 V, VO = 0.1 V p-p, RL = 25 Ω)
25
–25
–20
–15
–10
–5
0
5
10
15
20
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
G = –10
G = –5
G = –2
G = –1
+
5k
Ω
25
Ω
RG
Figure 4. Inverting Small Signal Bandwidth
(VS = ±6 V, VO = 0.1 V p-p, RL = 25 Ω)
–40
–80
–70
–60
–50
0
5
10
15
20
dBm (100
Ω)
Figure 5. MTPR vs. Line Power (See Schematic in Figure 8)
25
–25
–20
–15
–10
–5
0
5
10
15
20
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
G = +10
G = +5
G = +2
G = +1
+
499
Ω
25
Ω
RG
Figure 6. Noninverting Large Signal Bandwidth
(VS = ±6 V, VO = 1 V p-p, RL = 25 Ω)
25
–25
–20
–15
–10
–5
0
5
10
15
20
10k
100k
1M
10M
100M
1G
FREQUENCY (Hz)
G = –10
G = –5
G = –2
G = –1
+
5k
Ω
25
Ω
RG
Figure 7. Inverting Large Signal Bandwidth
(VS = ±6 V, VO = 1 V p-p, RL = 25 Ω)
1
OUT
+VIN
U1A
AD45048
8
V+
+12V
2
3
R1
499
Ω
R2
3k
Ω
R3
12.5
Ω
7
OUT
–VIN
U1B
AD45048
4
V–
5
6
R4
499
Ω
R5
3k
Ω
R6
12.5
Ω
TX1
1:2
R3
100
Ω
+6V
0.1
μF
4.7
μF
TANT
Figure 8. Differential Test Circuit for MTPR


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