THS6214 Datasheet, PDF (17/41 Pages) Texas Instruments – Dual-Port, Differential, VDSL2 Line Driver Amplifiers

THS6214
www.ti.com ....................................................................................................................................................................................................... SBOS431 – MAY 2009
TYPICAL CHARACTERISTICS: V_S = ±6V, Full 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
3
G_DIFF = 5V/V
0
R_F = 1.82kW
-3
G_DIFF = 10V/V
-6
R_F = 1.5kW
-9
-12
G_CM = 1V/V
-15 _{VO = 2VPP}
-18 ^{RL = 100W}
10M
100M
Frequency (Hz)
Figure 44.
400M
LARGE-SIGNAL FREQUENCY RESPONSE
3
0
-3
-6
V_O = 16V_PP
-9
-12
G_DIFF = 5V/V
-15 G_CM = 1V/V
V_O = 20V_PP
R_L = 100W
-18
0
50 100 150 200
V_O = 4V_PP
V_O = 2V_PP
250 300 350
Frequency (MHz)
Figure 46.
RECOMMENDED R_S vs CAPACITIVE LOAD
100
10
1
1
10
100
1000
Capacitive Load (pF)
Figure 48.
SMALL-SIGNAL FREQUENCY RESPONSE vs BIAS
6
3
Full Bias
0
75% Bias
-3
-6
-9
-12 ^{GDIFF = 5V/V}
G_CM = 1V/V
-15 V_O = 2V_PP
-18 ^{RL = 100W}
10M
50% Bias
100M
Frequency (Hz)
Figure 45.
400M
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 47.
FREQUENCY RESPONSE vs CAPACITIVE LOAD
17
R_S Optimized for 100% Bias
14
11
R_S
THS6214
8
V_IN
C_L
5
R_S
THS6214
470pF
100pF
1kW
V_OUT
Optional
22pF
39pF
47pF
2
10M
100M
Frequency (Hz)
Figure 49.
300M
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