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) R
L
= 25
Ω
.
(2) R
L
= 32
Ω
.
f = 1 kHz.
(1) V
P
= 3 V, R
L
= 25
Ω
.
(2) V
P
= 5 V, R
L
= 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 P
o
(BTL mono)
0
4
V
P
(V)
P
(W)
8
12
1.5
0.5
0
1
mda099
(2)
(1)
10
2
10
1
P
o
(W)
THD
(%)
10
−
1
10
−
2
mda130
10
−
3
10
−
2
10
−
1
1
(2)
(1)
(1) V
P
= 3 V, R
L
= 25
Ω
, THD = 70 mW.
(2) V
P
= 5 V, R
L
= 25
Ω
, THD = 150 mW.
V
P
= 3 V, R
s
= 0
Ω
, V
r
= 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
10
2
10
3
10
4
10
5
(2)
(1)
−
80
−
60
−
40
−
20
0
mda132
10
f (Hz)
SVRR
(dB)
10
2
10
3
10
4
10
5
