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NXP Semiconductors SA58670A manual

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  • Page 1

    1. General description The SA58670A is a stereo , filter-free class-D audio amplifier which is av ailab le in an HVQFN20 package with the e xposed Die Attach P addle (D AP). The SA58670A f eatures independent shutdown controls f or each channel. The gain may be set at 6 dB, 12 dB, 18 dB or 24 dB with gain select pins G0 and G1. Improv ed immunity[...]

  • Page 2

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 2 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier n Educational to y 4. Or dering information 5. Bloc k diagram T able 1. Ordering inf ormation T ype number Pa ck ag e Name Description V ersion SA58670ABS HVQFN20 plast[...]

  • Page 3

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 3 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 6. Pinning inf ormation 6.1 Pinning 6.2 Pin description (1) Exposed Die Attach P addle (D AP). Fig 2. Pin configuration for HVQFN20 002aad664 SA58670ABS T ransparent t[...]

  • Page 4

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 4 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 7. Limiting v alues [1] V DD is the supply voltage on pins PVDD and pin A VDD . GND is the voltage g round on pins PGND and pin AGND . INLN 19 left channel negative inp[...]

  • Page 5

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 5 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 8. Static characteristics [1] V DD is the supply voltage on pins PVDD and pin A VDD . GND is the ground supply v oltage on pins PGND and pin AGND . T able 4. Static cha[...]

  • Page 6

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 6 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 9. Dynamic characteristics [1] V DD is the supply voltage on pins PVDD and pin A VDD . T able 5. Dynamic characteristics T amb =2 5 ° C; R L =8 Ω ; unless otherwise [...]

  • Page 7

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 7 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 10. T ypical perf ormance curves a. G v(cl) =2 4d B b. G v(cl) = 6 dB. f i = 1 kHz. (1) V DD = 2.5 V . (2) V DD = 3.6 V . (3) V DD = 5.0 V . Fig 3. T otal harmonic dist[...]

  • Page 8

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 8 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier a. G v(cl) =2 4d B . b. G v(cl) = 6 dB. f i = 1 kHz. (1) V DD = 2.5 V . (2) V DD = 3.6 V . (3) V DD = 5.0 V . Fig 4. T otal harmonic distortion-plus-noise as a function[...]

  • Page 9

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 9 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier (1) P o = 350 mW; V i = 590 mV (RMS). (2) P o = 240 mW; V i = 490 mV (RMS). (3) P o = 120 mW; V i = 346 mV (RMS). a. R L =4 Ω (1) P o = 260 mW; V i = 721.1 mV (RMS). [...]

  • Page 10

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 10 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier (1) P o = 825 mW; V i = 908.3 mV (RMS). (2) P o = 550 mW; V i = 741.6 mV (RMS). (3) P o = 275 mW; V i = 524.4 mV (RMS). a. R L =4 Ω (1) P o = 560 mW; V i = 1.058 V ([...]

  • Page 11

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 11 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier (1) P o = 1.65 W; V i = 1.285 V (RMS). (2) P o = 1.1 W; V i = 1.05 V (RMS). (3) P o = 550 mW; V i = 741.6 mV (RMS). a. R L =4 Ω (1) P o = 1.16 W; V i = 1.523 V (RMS)[...]

  • Page 12

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 12 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier (1) V DD = 3.6 V ; L channel to R channel. (2) V DD = 3.6 V ; R channel to L channel. (3) V DD = 5.0 V ; L channel to R channel. (4) V DD = 5.0 V ; R channel to L chan[...]

  • Page 13

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 13 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier a. R L =4 Ω b. R L =8 Ω (1) V DD = 2.5 V . (2) V DD = 3.6 V . (3) V DD = 5.0 V . Fig 10. Crosstalk (one-to-one) as a function of frequency f (kHz) 2 20 001aah505 ?[...]

  • Page 14

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 14 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier (1) left channel; R L =8 Ω . (2) right channel; R L =4 Ω . (3) right channel; R L =8 Ω . Fig 11. Supply v oltage as a function of shutdown v oltage Fig 12. Suppl[...]

  • Page 15

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 15 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier a. R L =4 Ω b. R L =8 Ω (1) V DD = 5.0 V . (2) V DD = 3.6 V . (3) V DD = 2.5 V . Fig 14. P ower dissipation as a function of output power 0 0.6 0.4 0.2 0.8 P (W) P[...]

  • Page 16

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 16 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 11. Application information 11.1 P ower supply decoupling considerations The SA58670A is a stereo class-D audio amplifier that requires proper supply voltage decoupli[...]

  • Page 17

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 17 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier Since the value of the input decoupling capacitor and the input resistance determined by the gain setting aff ects the low frequency perf or mance of the audio ampli?[...]

  • Page 18

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 18 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 11.5 Efficiency and thermal considerations The maximum ambient operating temper ature depends on the heat transf erring ability of the heat spreader on the PCB la you[...]

  • Page 19

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 19 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 13. P ac kage outline Fig 18. Pac kage outline SO T917-1 (HVQFN20) 0.5 1 A 1 E h b UNIT y e 0.2 c REFERENCES OUTLINE VERSION EUROPEAN PROJECTION ISSUE DATE IEC JEDEC J[...]

  • Page 20

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 20 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 14. Soldering of SMD packa ges This te xt provides a v er y brief insight into a complex technology . A more in-depth account of soldering ICs can be found in Applicat[...]

  • Page 21

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 21 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 14.4 Reflo w soldering K ey char acteristics in reflow soldering are: • Lead-free v ersus SnPb solder ing; note that a lead-free reflow process usually leads to h[...]

  • Page 22

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 22 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier F or fur ther information on temperature profiles, ref er to Application Note AN10365 “Surf ace mount reflow soldering description” . 15. Abbreviations 16. Revis[...]

  • Page 23

    SA58670A_2 © NXP B.V . 2008. All rights reserved. Product data sheet Rev . 02 — 23 October 2008 23 of 24 NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier 17. Legal information 17.1 Data sheet status [1] Please consult the most recently issued document before initiating or completing a design. [2] The term ‘shor t data[...]

  • Page 24

    NXP Semiconductors SA58670A 2.1 W/channel stereo c lass-D audio amplifier © NXP B.V . 2008. All rights reserved. For more information, please visit: http://www.nxp.com For sales office addresses, please send an email to: salesaddresses@nxp.com Date of release: 23 October 2008 Document identifier: SA58670A_2 Please be aware that important notices [...]