Philips Semiconductors
13.12 Application 7: Line driver application
13.13 Application diagrams
TDA8559_3
Product data sheets
With the supply voltage connected to pin 15 it is possible to use the head amplifier above
the maximum of 18 V to pin 16. The internal supply voltage will be reduced to a maximum
of approximately 17 V.
This will be convenient in applications where the supply voltage is higher than 18 V,
however an output voltage swing that reaches the higher supply voltage is not required.
the input configurations illustrated in
application can also be used for headphone applications. However, due to the limited
output current, series resistors have to be used between the output pins and the load; see
Figure
14.
STANDBY
IN1
MUTE
MODE
IN2
SVRR
22 F
Cr
Fig 8. Application 1; single-ended with loudspeaker capacitor
Figure 5
1
REFERENCE
2
V/I
3
50 k
50 k
7
INPUT
8
LOGIC
5
V/I
6
50
50
k
k
V
P
100 k
4
100
TDA8559T
k
13
GND
Rev. 03 — 15 May 2006
TDA8559T
Low-voltage stereo headphone amplifier
and
Figure 6
should be used. This
V
V
P2
P1
15
16
V
P
50 k
OUT1
14
OA
DQC
OUT2
11
OA
50 k
BUFFER
12
BUFFER
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
V
P
100
100 F
nF
220 F
32
32
220 F
Cb
mgd116
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