TS488-TS489

Application information

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and its value is:

Note:

This maximum value depends only on power supply voltage and load values.

The efficiency is the ratio between the output power and the power supply:

4.2

Total power dissipation

The TS488/9 is stereo (dual channel) amplifier. It has two independent power amplifiers.

Each amplifier produces heat due to its power dissipation. Therefore the maximum die

temperature is the sum of each amplifier’s maximum power dissipation. It is calculated as

follows:

4.3

Lower cut-off frequency

P

diss

MAX

V

CC

2

π

2

R

L

------------- W

()

=

η

P

OUT

P

supply

-------------------

πV

peak

2V

CC

------------------

==

η

π

4

---

78.5%

==

TotalP

diss

2P

dissR

2P

dissL

==

TotalP

diss

π R

L

---------------------- P

OUT

2P

OUT

–

=

C

in

1

2

π F

CL

R

in

⋅⋅

----------------------------------------

=

C

out

1

2

π F

CL

R

L

⋅⋅

--------------------------------------

=