THS6214 Datasheet, PDF (22/41 Pages) Texas Instruments – Dual-Port, Differential, VDSL2 Line Driver Amplifiers

THS6214
SBOS431 – MAY 2009 ....................................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS: V_S = ±6V, Low Bias
At T_A = +25°C, G_DIFF = +5V/V, G_CM = 1V/V, R_ADJ = 0Ω, R_F = 1.82kΩ, and R_L = 100Ω, unless otherwise noted.
SMALL-SIGNAL FREQUENCY RESPONSE
6
3
G_DIFF = 5V/V
R_F = 1.82kW
0
-3
G_DIFF = 10V/V
-6
R_F = 1.5kW
-9
-12 _{GCM = 1V/V}
-15 ^VO ^{= 2V}PP
R_L = 100W
-18
10M
100M
Frequency (Hz)
Figure 69.
300M
PULSE RESPONSE
7.5
2.0
6.0
Large-Signal Pulse Response G_DIFF = 5V/V
(±5V_P) Left Scale
G_CM = 1V/V
1.6
4.5
R_L = 100W 1.2
3.0
0.8
1.5
0.4
Small-Signal
0
Pulse Response
0
-1.5
(±500mV_P) Right Scale
-0.4
-3.0
-0.8
-4.5
-1.2
-6.0
-1.6
-7.5
-2.0
Time (10ns/div)
Figure 71.
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
Figure 73.
LARGE-SIGNAL FREQUENCY RESPONSE
6
3
0
-3
V_O = 16V_PP
-6
V_O = 4V_PP
-9
V_O = 20V_PP
-12
G_DIFF = 5V/V
V_O = 2V_PP
-15 G_CM = 1V/V
-18 ^{RL = 100W}
0 20 40 60 80 100 120 140 160 180 200 220 240 260
Frequency (MHz)
Figure 70.
QUIESCENT CURRENT FOR LOW BIAS SETTING vs R_ADJ
12
10
8
6
+I_Q
4
-I_Q
2
0
0
1
2
3
4
5
6
R_ADJ (kW)
Figure 72.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
20
R_S Optimized for 100% Bias
17
14
R_S
11
THS6214
100pF
470pF
22pF
39pF
8
V_IN
C_L
1kW
V_OUT
Optional
47pF
5
R_S
THS6214
2
10M
Frequency (Hz)
Figure 74.
100M
200M
22
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