TDA1387 8x Measurements

Some measurements on TDA1541(a)  replacement board TDA 1387 8x

Be aware the current output of  a TDA 1541(a) on 0 dBfs is 4 mA

The TDA1387 at 0 dBfs is 1 mA. when 8 are in parallel its is 8 mA

This can cause clipping

FFT TDA 1541a vs TDA1378 at 0 dBfs

for reference TDA 1541a THD 60 Hz & 7 KHz IMD

TDA1378  8x Board THD 60 Hz & 7 KHz IMD

THD + noise 20 Hz to 20000 Hz ,

Multitone TDA 1387 8x board

TDA 1541a

TDA 1387

Silence 16 bits ditherd

1 KHz -90 dBfs

60 Hz -60 dBFS

60 Hz 0 dBfs

20 Hz 0dBfs