Tri p ath Techn o l o g y, I n c. - T echn i cal I n fo rmation

7

TP2050– KL/1.0/07.05

Component

Description

Supply decoupling for the power supply pins. For optimum performance, these

components should be located close to the TC2000/TP2050 and returned to their

respective ground as shown in the Application/Test Circuit.

frequencies. Use a high quality film capacitor capable of sustaining the ripple current

caused by the switching outputs.

under both no load conditions or with real world loads, including loudspeakers which

usually exhibit a rising impedance with increasing frequency. The recommended

power rating is 1 Watt.

waveform into an audio signal. Forms a second order filter with a cutoff frequency

of

)

C

L

2

(

1

f

O

O

C

π

=

and a quality factor of

O

O

O

L

C

L

C

R

Q

=

.

waveform into an audio signal. Forms a second order low-pass filter with a cutoff

frequency of

)

C

L

2

(

1

f

O

O

C

π

=

and a quality factor of

O

O

O

L

C

L

C

R

Q

=

.

Use

a high quality film capacitor capable of sustaining the ripple current caused by the

switching outputs. Electrolytic capacitors should not be used.

required for this component.

non-optimal layouts. Only required if switching output overshoot is above rated

voltage of TP2500. Use low-dissipation type (NPO).

optimal layouts. Only required if switching output overshoot is above rated voltage

of TP2500. Required ¼ Watt rating.

Differential mode capacitor.