TDA8559 Datasheet, PDF (9/32 Pages) NXP Semiconductors – Low-voltage stereo headphone amplifier

Philips Semiconductors
Low-voltage stereo headphone amplifier
Product specification
TDA8559
2.2 µF
pins 2 and 5
VIN
5 kΩ INPUT
pins 3 and 6
MGD123
handbook, halfpage
VIN
pins 2 and 5
INPUT
pins 3 and 6
MGD124
Fig.3 Input configuration; with input capacitor
(V_P < 6 V).
Fig.4 Input configuration; without input capacitor
(V_P < 6 V).
VIN
220 nF
220 nF
pins 2 and 5
INPUT
pins 3 and 6
MGD125
Fig.5 Input configuration (V_P > 6 V).
mute
VP
620 kΩ
47 kΩ
7
220 nF
MGL135
1997 Jun 27
Fig.7 Soft mute.
100 nF
VIN
220
nF
VIN
100 nF
pin 2
pin 3
pin 6
pin 5
MGD126
Fig.6 Input configuration (at V_P > 6 V, combined
negative inputs).
Standby/mute
• The standby mode (V₁ < 0.5 V) is intended for power
saving purpose. Then the total quiescent current is
<10 µA.
• To avoid ‘pop-noise’ during switch-on or switch-off the
IC can be muted (V₇ < 0.5 V). This can be achieved by
a ‘soft-mute’ circuit or by direct control from a
microcontroller.
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