TDA8559T NXP Semiconductors, TDA8559T Datasheet - Page 14

• Manufacturer Part Number: TDA8559T
• Description: Low-voltage Stereo Headphone Amplifier
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TDA8559_3
Product data sheets
13.10 Application 5: Line driver application
13.11 Application 6: Line driver application
13.5 Standby/mute
13.6 Application 1: SE with loudspeaker capacitor
13.7 Application 2: SE to buffer (without loudspeaker capacitor)
13.8 Application 3: Improved SE to buffer (without loudspeaker capacitor)
13.9 Application 4: Bridge tied load mono amplifier
The value of capacitor Cr influences the behavior of the Supply Voltage Ripple Rejection
(SVRR) at low frequencies; increasing the value of Cr increases the performance of the
SVRR; see
This is the basic headphone application. The advantage of this application with respect to
application 1, is that it needs only one external component (Cb) in the event of stability
problems; see
This application is an improved configuration of application 2. The distinction between the
two is connecting the loads in opposite phase. This lowers the average current through
the SE buffer. It should be noted that a headphone cannot be used because the load
requires floating terminals; see
This configuration delivers four times the output power of the SE application with the same
supply and load conditions. The capacitor Cr is not required; see
The TDA8559T delivers a virtual rail-to-rail output voltage and is also usable in a low
voltage environment, as a line driver. In this application the input needs a DC path to
ground, input configurations illustrated in
of capacitor Cr influences the behavior of the SVRR at low frequencies; increasing the
value of Cr increases the performance of the SVRR; see
The TDA8559T delivers a virtual rail-to-rail output voltage. Because the input mode has to
be high, the input configurations illustrated in
application can also be used for headphone application, however, due to the limited output
current and the limited output power at the headphone, series resistors have to be used
between the output pins and the load; see
The value of capacitor Cr influences the behavior of the SVRR at low frequencies;
increasing the value of Cr increases the performance of the SVRR.
1. The Standby mode (V
2. To avoid ‘pop-noise’ during switch-on or switch-off the IC can be muted (V
quiescent current is < 10 A.
This can be achieved by a ‘soft-mute’ circuit or by direct control from a microcontroller.
Figure
Figure
8.
9.
Rev. 03 — 15 May 2006
1
< 0.5 V) is intended for power saving purpose. Then the total
Figure
10.
Figure 3
Figure
Figure 5
Low-voltage stereo headphone amplifier
and
13.
Figure 4
and
Figure
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Figure 6
should be used. The value
12.
Figure
TDA8559T
should be used. This
11.
7
< 0.5 V).
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