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DA7202 Datasheet(PDF) 2 Page - Dialog Semiconductor |
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DA7202 Datasheet(HTML) 2 Page - Dialog Semiconductor |
2 / 25 page DA7202 10 W Mono Class-D Amplifier for 2S Battery Devices Company confidential Datasheet Revision 3a 20-Aug-2015 CFR0011-120-00 Rev 5 2 of 25 © 2015 Dialog Semiconductor Contents General description............................................................................................................................. 1 Key features ......................................................................................................................................... 1 Applications ......................................................................................................................................... 1 Contents ............................................................................................................................................... 2 Figures.................................................................................................................................................. 3 Tables ................................................................................................................................................... 3 1 Terms and definitions ................................................................................................................... 4 2 Block diagram................................................................................................................................ 5 3 Pinout ............................................................................................................................................. 6 4 Absolute maximum ratings .......................................................................................................... 7 5 Recommended operating conditions .......................................................................................... 8 6 Electrical characteristics .............................................................................................................. 9 7 Thermal protection........................................................................................................................ 9 8 Functional description................................................................................................................ 10 8.1 Pop and click suppression .................................................................................................. 10 8.2 Short circuit/over-current protection.................................................................................... 10 8.3 Thermal performance and thermal protection..................................................................... 10 8.3.1 Thermal shutdown ............................................................................................... 10 8.3.2 Maximum power dissipation ................................................................................ 10 8.4 Gain..................................................................................................................................... 11 8.5 Class D output stage........................................................................................................... 11 8.6 Power down (PDN_N)......................................................................................................... 11 9 Typical performance plots.......................................................................................................... 12 9.1 THD versus output power (8 Ω + 33 µH) ............................................................................ 12 9.2 THD versus output power (4 Ω + 33 µH) ............................................................................ 12 9.3 THD versus frequency (8 Ω + 33 µH) 4.5 V........................................................................ 13 9.4 THD versus frequency (4 Ω + 33 µH) 4.5 V........................................................................ 13 9.5 THD versus frequency (8 Ω + 33 µH) 8.2 V........................................................................ 14 9.6 THD versus frequency (4 Ω + 33 µH) 8.2 V........................................................................ 14 9.7 THD versus frequency (8 Ω + 33 µH) 9.0 V........................................................................ 15 9.8 THD versus frequency (4 Ω + 33 µH) 9.0 V........................................................................ 15 9.9 Max Pout versus supply voltage (8 Ω + 33 µH).................................................................... 16 9.10 Max Pout versus supply voltage (4 Ω + 33 µH).................................................................... 16 9.11 Efficiency versus output power (8 Ω + 33 µH) .................................................................... 17 9.12 Efficiency versus output power (4 Ω + 33 µH) .................................................................... 17 9.13 Start-up timing..................................................................................................................... 18 9.14 Shutdown timing.................................................................................................................. 18 9.15 Power dissipation versus output power (8 Ω + 33 µH) ....................................................... 19 9.16 Power dissipation versus output power (4 Ω + 33 µH) ....................................................... 19 9.17 Electromagnetic interference (EMI) performance ............................................................... 20 10 Application information .............................................................................................................. 21 10.1 PCB layout .......................................................................................................................... 21 10.2 Speaker selection................................................................................................................ 21 |
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