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TA0105A View Datasheet(PDF) - Tripath Technology Inc.

Part Name
Description
Manufacturer
TA0105A Datasheet PDF : 29 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
Tripath Technology, Inc. - Technical Information
CZ
Zobel capacitor, which in conjunction with RZ, terminates the output filter at high
frequencies. Use a high quality film capacitor capable of sustaining the ripple current
caused by the switching outputs.
RZ
Zobel resistor, which in conjunction with CZ, terminates the output filter at high
frequencies. The combination of RZ and CZ minimizes peaking of the output filter
under both no load conditions or with real world loads, including loudspeakers which
usually exhibit a rising impedance with increasing frequency. Depending on the
program material, the power rating of RZ may need to be adjusted. Typically 10
watts. If the system requires full power operation at 20kHz then the power rating for
RZ will likely need to be increased.
LO
Output inductor, which in conjunction with CO, demodulates (filters) the switching
waveform into an audio signal. Forms a second order filter with a cutoff frequency
of fC = 1 (2 π L O C O ) and a quality factor of Q = R L C O L O C O .
CO
Output capacitor, which, in conjunction with LO, demodulates (filters) the switching
waveform into an audio signal. Forms a second order low-pass filter with a cutoff
frequency of fC = 1 (2 π L O C O ) and a quality factor of Q = R L C O L O C O . Use
a high quality film capacitor capable of sustaining the ripple current caused by the
switching outputs.
CVB
Supply decoupling for the power supply sensing pins. For optimum performance,
these components should be located close to the TA0105A and returned to analog
ground.
9
TA0105A – RW/ Rev. 2.2/05.05
 

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