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4.12 Idle Noise FFT Spectrum (BTL)
-150
+0
-140
-130
-120
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
85 k
10 k
20 k
30 k
40 k
50 k
60 k
70 k
80 k
f - Frequency - Hz
dBr-
A
V
= 11.18 V,
FFT Size = 16k
REF
4.13 Channel Separation (1-2)
-100
+20
-90
-80
-70
-60
-50
-40
-30
-20
-10
+0
+10
20
20 k
50
100
200
500
1 k
2 k
5 k
10 k
f - Frequency - Hz
dBr-
A
Ch 1
Ch 2
TAS5132DDV6EVM Performance
Reference voltage is 11.18 V. FFT size is 16k.
Figure 15. Idle Noise FFT Spectrum (BTL)
Channel separation is tested for two channels in the same package, channel 1 and channel 2. Four-ohm
loads are used for both channels. Channel 1 input signal is 0 dBFS; channel 2 is muted. Reference
voltage is 5.49 Vrms. Shielded output inductors provide better channel separation.
Figure 16. Channel Separation (1-2)
SLLU096A – February 2007 – Revised March 2007
TAS5132DDV6EVM
15
