Philips TDA8559T manual

1. General description

The TDA8559T is a stereo ampliﬁer that operates over a wide supply voltage range from

1.9 V to 30 V and consumes a very low quiescent current. This makes it suitable for

battery fed applications (2 ×1.5 V cells). Because of an internal voltage buffer, this device

can be used with or without a capacitor connected in series with the load. It can be

applied as a headphone ampliﬁer, but also as a mono ampliﬁer with a small speaker

(25 Ω), or as a line driver in mains applications.

2. Features

nOperating voltage from 1.9 V to 30 V

nVery low quiescent current

nLow distortion

nFew external components

nDifferential inputs

nUsable as a mono ampliﬁer in Bridge-Tied Load (BTL) or stereo Single-Ended (SE)

nSingle-ended mode without loudspeaker capacitor

nMute and Standby mode

nShort-circuit proof to ground, to supply voltage (< 10 V) and across load

nNo switch on or switch off clicks

nESD protected on all pins

3. Applications

nPortable telephones

nMP3 players

nPortable audio

nMains fed equipment

TDA8559T

Low-voltage stereo headphone ampliﬁer

Rev. 03 — 15 May 2006 Product data sheets

Contents

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