LM4853
From Openmoko
(Difference between revisions)
(New page: * Feature: Mono Amplifier * Product Homepage: [http://www.national.com/pf/LM/LM4853.html LM4853.html] * Data Sheet: [http://www.national.com/ds.cgi/LM/LM4853.pdf LM4853.pdf] == Neo FreeRu...) |
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* Connected to this chip: | * Connected to this chip: | ||
** [[Samsung S3C2442B B54]] GPIO: HP_IN, AMP_SHUT (shutdown); | ** [[Samsung S3C2442B B54]] GPIO: HP_IN, AMP_SHUT (shutdown); | ||
| + | *** GPJ1 == 0, headphone or speaker is enabled. GPJ1 ==1, amp is off. | ||
| + | *** GPJ2 == 0, select speaker; GPJ2 == 1, select headphones. | ||
** Wolfson [[WM8753]]: LOUTL (LEFTIN), LOUTR (RIGHTIN); | ** Wolfson [[WM8753]]: LOUTL (LEFTIN), LOUTR (RIGHTIN); | ||
** speaker4102: (LEFTOUT/BLTOUT-, BLTOUT+); | ** speaker4102: (LEFTOUT/BLTOUT-, BLTOUT+); | ||
** headset-jack: ring 2 (RIGHTOUT), ring 3 (LEFTOUT/BLTOUT-) via 1uF-33R each | ** headset-jack: ring 2 (RIGHTOUT), ring 3 (LEFTOUT/BLTOUT-) via 1uF-33R each | ||
| + | |||
| + | [[Category:Neo FreeRunner Hardware]] | ||
| + | [[Category:Used chip]] | ||
Latest revision as of 07:54, 29 August 2008
- Feature: Mono Amplifier
- Product Homepage: LM4853.html
- Data Sheet: LM4853.pdf
[edit] Neo FreeRunner
- Main article: Neo_FreeRunner_GTA02_Hardware
- Connected to this chip:
- Samsung S3C2442B B54 GPIO: HP_IN, AMP_SHUT (shutdown);
- GPJ1 == 0, headphone or speaker is enabled. GPJ1 ==1, amp is off.
- GPJ2 == 0, select speaker; GPJ2 == 1, select headphones.
- Wolfson WM8753: LOUTL (LEFTIN), LOUTR (RIGHTIN);
- speaker4102: (LEFTOUT/BLTOUT-, BLTOUT+);
- headset-jack: ring 2 (RIGHTOUT), ring 3 (LEFTOUT/BLTOUT-) via 1uF-33R each
- Samsung S3C2442B B54 GPIO: HP_IN, AMP_SHUT (shutdown);
