Datasheet
www.ti.com
6.7 Channel Separation
20
20k
50 100 200 500 1k 2k
5k
10k
f-Frequency-Hz
-120
0
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
Amplitude-dB
0dB
RighttoLeft
Left Rightto
DRV601EVM Performance
Channel-1 output signal is 2 Vrms; channel-2 input is grounded. Reference voltage is 2 Vrms; the load is
600R.
Figure 16. Channel Separation
Left-to-right cross-coupling and right-to-left cross-coupling are not exactly the same; a difference of 15 dB
is seen at 1 kHz. The channel separation is more than 80 dB in both cases. The cause for the
cross-coupling is the high impedance of the feedback network. If a lower cross-coupling is wanted, the
feedback impedance can be lowered, this has an influence on the input coupling capacitor that needs to
be equally larger and thereby adds more cost.
DRV601EVM 14 SLOU215 – January 2008
Submit Documentation Feedback