THS6214 Datasheet, PDF (15/41 Pages) Texas Instruments – Dual-Port, Differential, VDSL2 Line Driver Amplifiers

THS6214
www.ti.com ....................................................................................................................................................................................................... SBOS431 – MAY 2009
TYPICAL CHARACTERISTICS: V_S = ±12V, Low 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
6
G_DIFF = 5V/V
3
R_F = 1.5kW
0
-3
-6
-9
-12
G_CM = 1V/V
-15 V_O = 2V_PP
-18 ^{RL = 100W}
10M
G_DIFF = 10V/V
R_F = 1.24kW
100M
Frequency (Hz)
Figure 32.
300M
PULSE RESPONSE
12
1.2
G_DIFF = 10V/V
8
G_CM = 1V/V
R_L = 100W
0.8
4
Small-Signal ±500mV_P
0.4
Right Scale
0
0
-4
-0.4
-8
Large-Signal Pulse Response
(±10V_P) Left Scale
-0.8
-12
-1.2
Time (10ns/div)
Figure 34.
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
Figure 36.
LARGE-SIGNAL FREQUENCY RESPONSE
3
0
-3
V_O = 20V_PP
-6
V_O = 8V_PP
-9
V_O = 4V_PP
-12
G_DIFF = 10V/V
-15 G_CM = 1V/V
R_L = 100W
-18
0 20 40 60
V_O = 2V_PP
80 100 120 140 160 180 200 220
Frequency (MHz)
Figure 33.
SUPPLY CURRENT FOR LOW BIAS SETTING vs R_ADJ
14
12
10
8
6
+I_Q
4
-I_Q
2
0
0
1
2
3
4
5
6
R_ADJ (kW)
Figure 35.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
26
R_S Optimized for 100% Bias
23
22pF
20
17
R_S
THS6214
14
11 V_IN
C_L
8
R_S
5
THS6214
100pF
470pF
1kW
V_OUT
Optional
39pF
47pF
2
10M
Frequency (Hz)
Figure 37.
100M
200M
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