Sure Tk 2050 anti bumb

To ensure proper device operation, including minimization of turn on/off transients that can result in
undesirable audio artifacts, Tripath recommends that the TK2050 device be muted prior to power up
or power down of the 5V supply. The “sensing” of the V5 supply can be easily accomplished by using
a “microcontroller supervisor” or equivalent to drive the TC2000 mute pin high when the V5 voltage is
below 4.5V. This will ensure proper operation of the TK2050 input circuitry. A micro-controller
supervisor such as the MCP101-450 from Microchip Corporation has been used by Tripath to
implement clean power up/down operation.
If turn-on and/or turn-off noise is still present with a TK2050 amplifier, the cause may be other
circuitry external to the TK2050. While the TK2050 has circuitry to suppress turn-on and turn-off
transients, the combination of power supply and other audio circuitry with the TK2050 in a particular
application may exhibit audible transients. One solution that will completely eliminate turn-on and
turn-off pops and clicks is to use a relay to connect/disconnect that amplifier from the speakers with
the appropriate timing during power on/off.