Low-Voltage Stereo Headphone Amplifier Product Data Sheets

ManualsBrandsPhilips ManualsAmplifierTDA8559T

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

n Operating voltage from 1.9 V to 30 V

n Very low quiescent current

n Low distortion

n Few external components

n Differential inputs

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

n Single-ended mode without loudspeaker capacitor

n Mute and Standby mode

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

n No switch on or switch off clicks

n ESD protected on all pins

3. Applications

n Portable telephones

n MP3 players

n Portable audio

n Mains fed equipment

TDA8559T

Low-voltage stereo headphone ampliﬁer

Rev. 03 — 15 May 2006 Product data sheets

Summary of content (36 pages)

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TDA8559T Low-voltage stereo headphone amplifier Rev. 03 — 15 May 2006 Product data sheets 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.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 4. Quick reference data Table 1. Symbol Quick reference data Parameter Conditions Min Typ Max Unit 1.9 3 30 V Supplies VP operating supply voltage Iq(tot) total quiescent current open load - 2.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 6. Block diagram VP2 VP1 15 STANDBY 1 16 REFERENCE VP +IN1 2 + −IN1 3 − 50 kΩ MUTE MODE +IN2 −IN2 50 kΩ − V/I + 14 OA OUT1 50 kΩ 7 DQC 8 INPUT LOGIC 5 + 6 − 50 kΩ + − V/I 11 OA OUT2 50 kΩ 50 kΩ VP 100 kΩ SVRR 12 4 BUFFER 100 kΩ BUFFER TDA8559T 9,10 13 mgd115 n.c. GND Fig 1. Block diagram TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006. All rights reserved.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 7. Pinning information 7.1 Pinning STANDBY 1 16 VP1 +IN1 2 15 VP2 −IN1 3 14 OUT1 SVRR 4 13 GND TDA8559T +IN2 5 12 BUFFER −IN2 6 11 OUT2 MUTE 7 10 n.c. MODE 8 9 n.c. 001aae802 Top view Fig 2. Pin configuration 7.2 Pin description Table 3.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 8. Functional description The TDA8559T contains two amplifiers with differential inputs, a 0.5VP output buffer and a high supply voltage stabilizer. Each amplifier consists of a voltage-to-current converter (V/I), an output amplifier and a common dynamic quiescent current controller. The gain of each amplifier is internally fixed at 26 dB (= 20 ×). The 0.5VP output can be used as a replacement for the single-ended capacitors.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 8.4 Dynamic quiescent controller The Dynamic Quiescent Current controller (DQC) gives the advantage of low quiescent current and low distortion. When there are high frequencies in the output signal, the DQC will increase the quiescent current of the two output amplifiers and the buffer. This will reduce the crossover distortion that normally occurs at high frequencies and low quiescent current.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 9. Internal circuitry Table 4. Internal circuits Symbol Pin STANDBY 1 Equivalent circuit VP1 10 kΩ 12 kΩ mgd110 +IN1, −IN1, +IN2 and −IN2 2, 3, 5 and 6 VP1 mgd106 SVRR 4 VP1 50 kΩ 50 kΩ 50 kΩ 50 kΩ mgd107 TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier Table 4. Internal circuits …continued Symbol Pin MUTE 7 Equivalent circuit VP1 mgd112 MODE 8 VP1 1 kΩ 250 kΩ 5 kΩ mgd113 TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier Table 4. Internal circuits …continued Symbol Pin OUT2 and OUT1 11 and 14 Equivalent circuit VP1 100 Ω 50 Ω buffer output BUFFER mgd108 12 VP1 buffer output mgd109 VP2 and VP1 15 and 16 VP2 VP1 2 kΩ mgd111 TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 10. Limiting values Table 5. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). Symbol Parameter VP2(max) Conditions Min Max Unit maximum supply voltage (pin 15) - 30 V VP1(max) maximum supply voltage (pin 16) - 18 V Vi(max) maximum input voltage - 18 V IORM peak output current - 150 mA Ptot total power dissipation - 1.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier Table 7. Characteristics …continued VP = 3 V; Tamb = 25 °C; fi = 1 kHz; unless otherwise specified. Symbol Min Typ Max Unit noise output voltage [3] - 70 85 µV Vno(mute) noise output voltage in mute [3] - 20 30 µV Vo(mute) output voltage in mute [4] - - 30 µV Vmt mid-tap voltage 1.4 1.5 1.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier The capacitor Cb is recommended for stability improvement. The value may vary between 10 nF and 100 nF. This capacitor should be placed close to the IC between pin 12 and pin 13. 13.2 Heatsink design The standard application is stereo headphone single-ended with a 32 Ω load impedance to buffer (see Figure 9). The headphone amplifier can deliver a peak output current of 150 mA into the load.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 13.4 Input configurations The IC can be applied in two ways, ‘input mode low’ and ‘input mode high’. This can be selected by the input mode at pin 8: 1. Input mode low: pin 8 floating: The DC level of the input pins has to be between 0 V and (VP − 1.8 V). A DC path to ground is needed. The maximum output voltage is approximately 2.1 V (RMS). Input configurations illustrated in Figure 3 and Figure 4 should be used. 2.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 13.5 Standby/mute 1. The Standby mode (V1 < 0.5 V) is intended for power saving purpose. Then the total quiescent current is < 10 µA. 2. 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. 13.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 13.12 Application 7: Line driver application 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.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier VP2 VP1 15 STANDBY 1 16 +VP 100 nF 100 µF REFERENCE VP 2 IN1 + 3 − 50 kΩ MUTE MODE IN2 50 kΩ − V/I + 14 OUT1 + OA − 32 Ω 50 kΩ 7 DQC 8 INPUT LOGIC 5 + 6 − 50 kΩ + − V/I 11 OUT2 OA 32 Ω + − 50 kΩ 50 kΩ VP 100 kΩ SVRR 4 BUFFER 100 kΩ TDA8559T 12 BUFFER Cb 13 mgd117 GND Fig 9.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier VP1 VP2 15 STANDBY 1 16 +VP 100 nF 100 µF REFERENCE VP IN1 2 + 3 − 50 kΩ MUTE MODE − V/I + 32 Ω 14 OUT1 OA + − 50 kΩ 7 DQC INPUT LOGIC 8 5 IN2 50 kΩ + 6 − 50 kΩ 32 Ω + − V/I 11 OUT2 OA − + 50 kΩ 50 kΩ VP 100 kΩ SVRR 4 BUFFER 100 kΩ TDA8559T 12 BUFFER Cb 13 mgd118 GND Fig 10.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier VP2 VP1 15 STANDBY 1 16 +VP 100 nF 100 µF REFERENCE VP IN1 2 + 3 − 50 kΩ MUTE − V/I + OA DQC 8 INPUT LOGIC 5 + 6 − 50 kΩ 14 OUT1 50 kΩ 7 MODE IN2 50 kΩ + − V/I OA 25 Ω 11 OUT2 50 kΩ 50 kΩ VP 100 kΩ SVRR 4 BUFFER 100 kΩ 12 BUFFER TDA8559T Cb 13 GND mgd119 Fig 11. Application 4; BTL mono amplifier TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier VP2 VP1 15 STANDBY 1 16 +VP 100 nF 100 µF REFERENCE VP IN1 2 + 3 − 50 kΩ MUTE MODE IN2 50 kΩ − V/I + 1 kΩ 14 OUT1 OA 10 µF 50 kΩ 7 DQC 8 INPUT LOGIC 5 + 6 − 50 kΩ + − V/I 11 OUT2 OA 10 µF 50 kΩ 1 kΩ 50 kΩ VP 100 kΩ SVRR 4 22 µF Cr BUFFER 100 kΩ TDA8559T 12 BUFFER Cb 13 mgd120 GND VP = 1.9 V to 6 V. Fig 12.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier VP2 VP1 15 16 +VP 100 nF 100 µF STANDBY 1 REFERENCE VP 100 nF 2 + 3 − IN1 50 kΩ 50 kΩ − V/I + MUTE DQC 8 INPUT LOGIC 5 + 6 − MODE 100 nF 10 µF 50 kΩ 7 220 nF 1 kΩ 14 OUT1 OA IN2 50 kΩ + − V/I 11 OUT2 OA 10 µF 50 kΩ 1 kΩ 50 kΩ VP 100 kΩ SVRR 4 22 µF Cr BUFFER 100 kΩ TDA8559T 12 BUFFER Cb 13 mgd121 GND VP = 6 V to 18 V. Fig 13.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier +VP VP2 VP1 15 16 100 nF 100 µF STANDBY 1 REFERENCE VP 100 nF 2 + 3 − IN1 50 kΩ 50 kΩ − V/I + MUTE + 10 µF DQC 8 INPUT LOGIC 5 + MODE 100 nF 14 OUT1 IN2 6 − 50 kΩ − 50 kΩ 7 220 nF OA + − V/I OA POWER AMPLIFIER 11 OUT2 + 10 µF − 50 kΩ 50 kΩ VP 100 kΩ SVRR 4 BUFFER 100 kΩ TDA8559T 12 BUFFER Cb 13 mgd122 GND VP = 6 V to 30 V. Fig 14.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 13.14 Printed-circuit board layout MUTE Inp. mode 220 nF 220 µF INP2 5.1 kΩ 8 9 TDA8559T 22 µF 5.1 kΩ INP1 1 Buf. 220 µF 100 nF 220 nF Out2 Out1 Std. by TDA8559T 100 µF +Vp D&A AUDIO POWER QC - NIJMEGEN HR 001aae801 Top view component side. Fig 15. Printed-circuit board layout The Printed-Circuit Board (PCB) layout supports all applications as illustrated in Figure 8 to Figure 14.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda091 102 mda092 1 THD (%) THD (%) 10 (1) (2) (1) 10−1 1 (2) 10−1 10−2 10−3 10−2 10−1 Po (W) 1 10−2 10 102 103 (1) VP = 5 V, THD = 50 mW. (2) VP = 5 V, RL = 32 Ω. (2) VP = 3 V, THD = 20 mW. Fig 18. THD as a function of Po (stereo headphone) mda093 10−2 Iq 10−3 10−1 (1) (2) (3) (1) (2) 10−2 10−5 10−3 10−6 10−4 10−5 1 mda094 1 Vo (V) 0 105 Fig 19.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda095 0 αcs (dB) ∆Gr (dB) −20 0.5 −40 0 −60 −0.5 −80 10 102 103 104 f (Hz) mda096 1 105 VP = 3 V, Vi = 20 mV. −1 10 102 103 f (Hz) 105 VP = 3 V, Vi = 20 mV. Fig 22. Channel separation as a function of frequency (stereo headphone) mda097 0 Fig 23. Channel unbalance as a function of frequency (stereo headphone) mda098 0.4 Po (W) SVRR (dB) −20 0.3 −40 0.2 −60 0.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda099 1.5 mda130 102 THD (%) P (W) 10 1 (1) 1 (1) (2) (2) 0.5 10−1 0 0 4 8 VP (V) 12 (1) RL = 25 Ω. 10−2 10−3 10−2 10−1 Po (W) 1 f = 1 kHz. (2) RL = 32 Ω. (1) VP = 3 V, RL = 25 Ω. (2) VP = 5 V, RL = 25 Ω. Fig 26. Total worst case power dissipation as a function of supply voltage (SE) (stereo headphone) mda131 1 Fig 27.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda133 1 Po (W) P (W) 0.75 1.2 (1) mda134 1.6 (2) 0.8 0.5 (1) (2) 0.4 0.25 0 0 0 8 4 VP (V) 0 12 (1) THD = 10 %, RL = 25 Ω. (1) RL = 25 Ω. (2) THD = 0.5 %, RL = 25 Ω. (2) RL = 32 Ω Fig 30. Po as a function of supply voltage (BTL mono) 4 8 VP (V) 12 Fig 31. Total worst case power dissipation as a function of supply voltage (BTL mono) 13.16 Response curves for high input mode mda119 0.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda121 102 mda122 1 THD (%) THD (%) 10 (1) 10−1 1 (2) 10−1 10−2 10−3 10−2 10−1 Po (W) 1 VP = 10 V, RL = 32 Ω, f = 1 kHz. 10−2 10 102 103 104 f (Hz) 105 VP = 10 V, RL = 32 Ω. (1) Po = 100 mW. (2) Po = 50 mW. Fig 34. THD as a function of Po (stereo headphone) mda123 0 Fig 35.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda125 102 mda126 1 THD (%) THD (%) 10 (2) (1) 1 10−1 10−1 10−2 10−2 10−1 1 Vo (V) 10 (1) VP = 12 V, RL = 1 kΩ. 10−2 10 102 103 104 f (Hz) 105 VP = 12 V, Vo = 1 V. (2) VP = 18 V, RL = 1 kΩ. Fig 38. THD as a function of Vo (stereo line driver) mda127 0 Fig 39.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier mda129 10 Vo (V) 8 6 (1) 4 (2) 2 0 0 4 8 12 16 VP (V) 20 (1) THD = 10 %, RL = 1 kΩ. (2) THD = 0.5 %, RL = 1 kΩ. Fig 42. Vo as a function of VP (stereo line driver) 14. Test information 14.1 Quality information The General Quality Specification for Integrated Circuits, SNW-FQ-611 is applicable. TDA8559_3 Product data sheets © Koninklijke Philips Electronics N.V. 2006. All rights reserved. Rev.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 15. Package outline SO16: plastic small outline package; 16 leads; body width 3.9 mm SOT109-1 D E A X c y HE v M A Z 16 9 Q A2 A (A 3) A1 pin 1 index θ Lp 1 L 8 e 0 detail X w M bp 2.5 5 mm scale DIMENSIONS (inch dimensions are derived from the original mm dimensions) UNIT A max. A1 A2 A3 bp c D (1) E (1) e HE L Lp Q v w y Z (1) mm 1.75 0.25 0.10 1.45 1.25 0.25 0.49 0.36 0.25 0.19 10.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 16. Soldering 16.1 Introduction to soldering surface mount packages There is no soldering method that is ideal for all surface mount IC packages. Wave soldering can still be used for certain surface mount ICs, but it is not suitable for fine pitch SMDs. In these situations reflow soldering is recommended. 16.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier – larger than or equal to 1.27 mm, the footprint longitudinal axis is preferred to be parallel to the transport direction of the printed-circuit board; – smaller than 1.27 mm, the footprint longitudinal axis must be parallel to the transport direction of the printed-circuit board. The footprint must incorporate solder thieves at the downstream end.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier [3] These transparent plastic packages are extremely sensitive to reflow soldering conditions and must on no account be processed through more than one soldering cycle or subjected to infrared reflow soldering with peak temperature exceeding 217 °C ± 10 °C measured in the atmosphere of the reflow oven. The package body peak temperature must be kept as low as possible. [4] These packages are not suitable for wave soldering.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 17. Revision history Table 11. Revision history Document ID Release date Data sheet status Change notice Supersedes TDA8559_3 20060515 Product data sheet - TDA8559_2 Modifications: • The format of this data sheet has been redesigned to comply with the new presentation and information standard of Philips Semiconductors.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 18. Legal information 18.1 Data sheet status Document status[1][2] Product status[3] Definition Objective [short] data sheet Development This document contains data from the objective specification for product development. Preliminary [short] data sheet Qualification This document contains data from the preliminary specification. Product [short] data sheet Production This document contains the product specification.
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TDA8559T Philips Semiconductors Low-voltage stereo headphone amplifier 20. Contents 1 2 3 4 5 6 7 7.1 7.2 8 8.1 8.2 8.3 8.4 8.5 8.6 8.7 9 10 11 12 13 13.1 13.2 13.3 13.4 13.5 13.6 13.7 13.8 13.9 13.10 13.11 13.12 13.13 13.14 13.15 13.16 14 14.1 15 16 General description . . . . . . . . . . . . . . . . . . . . . . 1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Quick reference data . . . . . . . . . . . . .