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DA7202 Datasheet(PDF) 2 Page - Dialog Semiconductor

Part # DA7202
Description  10 W Mono Class-D Amplifier for 2S Battery Devices
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Manufacturer  DIALOG [Dialog Semiconductor]
Direct Link  http://www.dialog-semiconductor.com/
Logo DIALOG - Dialog Semiconductor

DA7202 Datasheet(HTML) 2 Page - Dialog Semiconductor

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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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