THS6214 Datasheet, PDF (13/41 Pages) Texas Instruments – Dual-Port, Differential, VDSL2 Line Driver Amplifiers

THS6214
www.ti.com ....................................................................................................................................................................................................... SBOS431 – MAY 2009
TYPICAL CHARACTERISTICS: V_S = ±12V, Mid Bias
At T_A = +25°C, G_DIFF = +10V/V, G_CM = 1V/V, R_ADJ = 0Ω, R_F = 1.24kΩ, and R_L = 100Ω, unless otherwise noted.
SMALL-SIGNAL FREQUENCY RESPONSE
3
G_DIFF = 5V/V
0
R_F = 1.5kW
-3
-6
G_DIFF = 10V/V
R_F = 1.24kW
-9
-12
G_CM = 1V/V
-15 _{VO = 2VPP}
-18 ^{RL = 100W}
10M
100M
Frequency (Hz)
Figure 20.
400M
PULSE RESPONSE
12
1.2
8
0.8
4
0.4
Small-Signal ±500mV_P
Right Scale
0
0
-4
-0.4
Large-Signal Pulse Response
-8
(±10V_P) Left Scale
-0.8
-12
-1.2
Time (10ns/div)
Figure 22.
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
Figure 24.
LARGE-SIGNAL FREQUENCY RESPONSE
3
0
-3
V_O = 20V_PP
-6
V_O = 4V_PP
-9
-12
G_CM = 1V/V
-15 _{GDIFF = 10V/V}
-18 ^{RL = 100W}
0 20 40 60
V_O = 8V_PP
V_O = 2V_PP
80 100 120 140 160 180 200 220 240 260
Frequency (MHz)
Figure 21.
QUIESCENT CURRENT FOR MID BIAS SETTING vs R_ADJ
18
16
14
12
10
8
+I_Q
6
4
-I_Q
2
0
0
1
2
3
4
5
6
R_ADJ (kW)
Figure 23.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
23
R_S Optimized for 100% Bias
22pF
20
470pF
17
100pF
39pF
14
R_S
THS6214
11
47pF
8
V_IN
C_L
1kW
V_OUT
Optional
5
R_S
THS6214
2
10M
100M
Frequency (Hz)
Figure 25.
300M
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