Main
1. General description
2. Features
3. Applications
TDA8559T
Rev. 03 15 May 2006 Product data sheets
Low-voltage stereo headphone amplier
4. Quick reference data
5. Ordering information
Product data sheets Rev. 03 15 May 2006 3 of 36
6. Block diagram
Fig 1. Block diagram
7. Pinning information
7.1 Pinning
7.2 Pin description
Philips Semiconductors TDA8559T
8. Functional description
8.1 V/I converters
8.2 Output ampliers
8.3 Buffer
8.4 Dynamic quiescent controller
8.5 Stabilizer
8.6 Input logic
8.7 Reference
9. Internal circuitry
Page
Philips Semiconductors TDA8559T
10. Limiting values
11. Thermal characteristics 12. Characteristics
= 25
In accordance with the Absolute Maximum Rating System (IEC 60134).
V
13. Application information
= 25
13.1 General
V
= 3 V; T
13.2 Heatsink design
13.3 Test conditions
13.4 Input congurations
Fig 7. Soft mute
Fig 5. Input conguration Fig 6. Input conguration
Fig 3. Input conguration; with input capacitor Fig 4. Input conguration; without input capacitor
VP< 6 V. VP< 6 V.
Page
Product data sheets Rev. 03 15 May 2006 15 of 36
13.12 Application 7: Line driver application
Fig 8. Application 1; single-ended with loudspeaker capacitor
13.13 Application diagrams
IN1
IN2
Fig 9. Application 2; single-ended to buffer (without loudspeaker capacitor)
IN1
IN2
Fig 10. Application 3; improved single-ended to buffer (without loudspeaker capacitor)
Fig 11. Application 4; BTL mono amplier
VP = 1.9 V to 6 V.
Fig 12. Application 5; line driver application
Product data sheets Rev. 03 15 May 2006 20 of 36
VP = 6 V to 18 V.
Fig 13. Application 6; line driver application
VP = 6 V to 30 V.
Fig 14. Application 7; line driver application
13.14 Printed-circuit board layout
13.15 Response curves for low input mode
Top view component side.
Fig 15. Printed-circuit board layout
(1) High mode. (2) Low mode.
Fig 18. THD as a function of Po (stereo headphone) Fig 19. THD as a function of frequency (stereo
(1) VP = 12 V. (2) VP = 3 V and 6 V. (3) VP = 3 V, 6 V and 12 V.
(1) VP = 3 V. (2) VP = 12 V.
VP = 3 V, Vi = 20 mV. VP = 3 V, Vi = 20 mV.
(stereo headphone)
VP = 3 V, Rs = 0 , Vr = 0.2 V (RMS). (1) RL = 32 , THD = 10 %. (2) RL = 32 , THD = 0.5 %.
(1) RL = 25 . (2) RL = 32 .
f = 1 kHz. (1) VP = 3 V, RL = 25 . (2) VP = 5 V, RL = 25 .
Fig 26. Total worst case power dissipation as a function of supply voltage (SE) (stereo
Fig 27. THD as a function of Po (BTL mono)
Fig 28. THD as a function of frequency (BTL mono) Fig 29. SVRR as a function of frequency (BTL mono)
(1) VP = 3 V, RL = 25 , THD = 70 mW. (2) VP = 5 V, RL = 25 , THD = 150 mW.
VP = 3 V, Rs = 0 , Vr = 0.2 V (RMS).
13.16 Response curves for high input mode
(1) THD = 10 %, RL = 25 . (2) THD = 0.5 %, RL = 25 .
(1) RL = 25 . (2) RL = 32
(1) RL = 32 , THD = 10 %. (2) RL = 32 , THD = 0.5 %.
(1) RL = 25 . (2) RL = 32 .
Fig 34. THD as a function of Po (stereo headphone) Fig 35. THD as a function of frequency (stereo
VP = 10 V, Vi = 20 mV. VP = 10 V, Rs = 0 , Vr = 0.2 V (RMS).
SVRR (dB)
(1) VP = 12 V, RL = 1 k. (2) VP = 18 V, RL = 1 k.
VP = 12 V, Vo = 1 V.
driver)
14. Test information
14.1 Quality information
is applicable.
General Quality Specication for Integrated Circuits, SNW-FQ-611
The
15. Package outline
SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1
Fig 43. Package outline SOT109-1 (SO16)
16. Soldering
16.1 Introduction to soldering surface mount packages
16.2 Reow soldering
16.3 Wave soldering
16.4 Manual soldering
Page
17. Revision history
18. Legal information
18.1 Data sheet status
18.2 Denitions
18.3 Disclaimers
18.4 Trademarks
20. Contents
