Total Output Power (W)

0

2.5

5

7.5

10

12.5

15

17.5

20

22.5

25

0

10

20

30

40

50

60

70

80

90

100

D015

PVcc = 6V

PVcc = 13V

PVcc = 14.4V

10

TPA3136D2

SLOS938B – MAY 2016 – REVISED JUNE 2016

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Copyright © 2016, Texas Instruments Incorporated

Typical Characteristics (continued)

made with AES17 filter using the TPA3136D2 EVM, which is available at ti.com.

AVCC=PVCC = 6 V, 13 V, 14.4 V, Load = 4

Ω + 33 µH

Figure 15. Efficiency vs Output Power (PBTL)

8 Parameter Measurement Information

All parameters are measured according to the conditions described in the Specifications .

Most audio analyzers will not give correct readings of Class-D amplifiers’ performance due to their sensitivity to

out of band noise present at the amplifier output. An AES-17 pre analyzer filter is recommended to use for Class-

D amplifier measurements. In absence of such filter, a 30-kHz low-pass filter (10

Ω + 47 nF) can be used to

reduce the out of band noise remaining on the amplifier outputs.