TDA8559_3 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheets Rev. 03 — 15 May 2006 25 of 36
Philips Semiconductors TDA8559T
Low-voltage stereo headphone amplifier

(1) RL = 25 Ω.

(2) RL = 32 Ω.

f = 1 kHz.

(1) VP = 3 V, RL = 25 Ω.

(2) VP = 5 V, RL = 25 Ω.

Fig 26. Total worst case power dissipation as a

function of supply voltage (SE) (stereo

headphone)
Fig 27. THD as a function of Po (BTL mono)
04 VP (V)
P
(W)
812
1.5
0.5
0
1
mda099
(2) (1)
102
10
1
Po (W)
THD
(%)
10−1
10−2
mda130
10−310−210−11
(2) (1)

(1) VP = 3 V, RL = 25 Ω, THD = 70 mW.

(2) VP = 5 V, RL = 25 Ω, THD = 150 mW.

VP = 3 V, Rs = 0 Ω, Vr = 0.2 V (RMS).

Fig 28. THD as a function of frequency (BTL mono) Fig 29. SVRR as a function of frequency (BTL mono)

1
THD
(%)
f (Hz)
10−1
10−2
mda131
10 102103104105
(2)
(1)
−80
−60
−40
−20
0
mda132
10 f (Hz)
SVRR
(dB)
102103104105