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TDA8559_3 © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Product data sheets Rev. 03 — 15 May 2006 26 of 36
Philips Semiconductors
TDA8559T
Low-voltage stereo headphone amplifier
13.16 Response curves for high input mode
(1) THD = 10 %, R
L
= 25 Ω.
(2) THD = 0.5 %, R
L
= 25 Ω.
(1) R
L
= 25 Ω.
(2) R
L
= 32 Ω
Fig 30. P
o
as a function of supply voltage (BTL mono) Fig 31. Total worst case power dissipation as a
function of supply voltage (BTL mono)
04 12
1
0.75
0.25
0
0.5
8
V
P
(V)
P
o
(W)
mda133
(2) (1)
04
V
P
(V)
P
(W)
812
1.6
1.2
0.4
0
0.8
mda134
(2) (1)
(1) R
L
= 32 Ω, THD = 10 %.
(2) R
L
= 32 Ω, THD = 0.5 %.
(1) R
L
= 25 Ω.
(2) R
L
= 32 Ω.
Fig 32. P
o
as a function of V
P
(SE) (BTL mono) Fig 33. Total worst case power dissipation as a
function of supply voltage (SE) (stereo
headphone)
048
V
P
(V)
P
o
(W)
16
0
0.8
12
0.6
0.4
0.2
mda119
(2) (1)
048
V
P
(V)
P
(W)
16
2
0
1.6
12
1.2
0.8
0.4
mda120
(2) (1)