THS6022 Datasheet, PDF (35/38 Pages) Texas Instruments – 250-mA DUAL DIFFERENTIAL LINE DRIVER

THS6022
250-mA DUAL DIFFERENTIAL LINE DRIVER
SLOS225C – SEPTEMBER 1998 – REVISED JANUARY 2000
APPLICATION INFORMATION
general configurations (continued)
RG
RF
–
THS6022
+
VO
R1
VI
RA
R2
C1
For Stable Operation:
R2
R1 || RA
≥
RF
RG
( ) ^{VO ≅ VI}
1+
RF
RG
sR1C1
Figure 64. Noninverting CFB Integrator
Another good use for the THS6022 amplifiers is as very good video distribution amplifiers. One characteristic
of distribution amplifiers is the fact that the differential phase (DP) and the differential gain (DG) are
compromised as the number of lines increases and the closed-loop gain increases. Be sure to use termination
resistors throughout the distribution system to minimize reflections and capacitive loading.
715 Ω
715 Ω
+5 V
THS6022
–
VI
+
75 Ω _{– 5 V}
75 Ω
75 Ω Transmission Line
N Lines
75 Ω
75 Ω
75 Ω
VO1
VON
Figure 65. Video Distribution Amplifier Application
evaluation board
An evaluation board is available for the THS6022 (literature number SLOP133). This board has been configured
for proper thermal management of the THS6022. The circuitry has been designed for a typical ADSL application
as shown previously in this document. For more detailed information, refer to the THS6022EVM User’s Manual
(literature number SLOV035) To order the evaluation board, contact your local TI sales office or distributor.
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35