THS6226_15 Datasheet, PDF (7/21 Pages) Texas Instruments – Gated-Class H, Dual-Port VDSL2 Line Driver

THS6226
www.ti.com
SBOS499C – JANUARY 2011 – REVISED APRIL 2011
TYPICAL CHARACTERISTICS: V_S = +12V
At T_A = +25°C and Full Bias Mode, unless otherwise noted
SMALL-SIGNAL FREQUENCY RESPONSE
LARGE-SIGNAL FREQUENCY RESPONSE
3
3
0
0
−3
−3
−6
−6
−9
−9
−12
−15
−18 VO = 2VPP
R_L = 60Ω
−21
1
Bias 15
Bias 10
Bias 5
Bias 0
10
100
300
Frequency ( MHz)
Figure 2.
−12
−15
−18 VO = 10VPP
R_L = 60Ω
−21
1
Bias 15
Bias 10
Bias 5
Bias 0
10
100
300
Frequency ( MHz)
Figure 3.
OUTPUT VOLTAGE AND CURRENT LIMITATIONS
12
100W Load Line
10
50W Load Line
25W Load Line
8
1W Internal
6
Power
Dissipation
4
2
Bias 15
Class AB Mode
0
-350 -250 -150
-50 50
I_O (mA)
Figure 4.
1W Internal
Power
Dissipation
150 250 350
POWER CONSUMPTION
650
Prof. 30, Bias 10
600
Prof. 17, Bias 4
550
Prof. 8, Bias 2
500
ADSL, Bias 0
450
400
Output Power Into 100W Load
Load Power Included
350
300
250
200
150
100
-12.5 -9.5 -6.5 -3.5 -0.5 2.5 5.5 8.5 11.5 14.5 17.5 20.5
Output Power (dBm)
Figure 5.
CLASS AB OVERDRIVE RECOVERY
0.27
5
0.21
Output Voltage
4
Right Scale
0.16
3
0.11
2
Input Voltage
0.05
Left Scale
1
0
0
0.05
-1
0.11
-2
0.16
-3
0.21 ^{RL = 60W}
-4
AC-Coupled Input and Output
0.27
-5
0 20 40 60 80 100 120 140 160 180 200
Time (ns)
Figure 6.
OVERDRIVE RECOVERY
0.75
R_L = 60W
0.64 _AC-Coupled
0.53
Input and Output
Positive Excursion Only
0.43
Input Voltage
0.32
Left Scale
14
12
10
8
Output Voltage
Right Scale
6
0.21
4
0.11
2
0
0
-0.11
-2
-0.21
0.6 0.7 0.8 0.9
-4
1 1.1 1.2 1.3 1.4 1.5 1.6
Time (ns)
Figure 7.
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