N900 Hardware Power management: Difference between revisions

Revision as of 13:18, 5 May 2010

The TWL4030 aka TPS65950 has USB PHY, power managment and audio codec.

The USB PHY isn't used and is handled by the nxp1707a [1] See more information on USB

It seems to be documented - not under this part number - at TIs website

A quick check indicates the I2C bus addresses match - see 13.3 in above datasheet.

If this is the correct part, the following description applies:

The TPS65950 contains;

Power management
- Several regulators - switched mode and LDO.
Audio codec
- Five DACs, two ADCs
- Several power amplifiers.
- Microphone amplifiers
USB tranciever
- Highspeed OTG compatible with integrated charge pump, and carkit support, designed for direct connection to the SoC.
an ac/USB charger
LED drivers
ADC
- ADC can measure both input voltages to device, or voltages connected externally.
RTC
GPIO
- This can support switches, keypads, ...

Revision as of 20:03, 3 May 2010 view source imported>speedevil No edit summary ← Older edit		Revision as of 13:18, 5 May 2010 view source imported>joerg_rw m aka TPS65950 Newer edit →
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	The TWL4030 has USB PHY, power managment and audio codec.		The TWL4030 aka TPS65950 has USB PHY, power managment and audio codec.

	The USB PHY isn't used and is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]		The USB PHY isn't used and is handled by the nxp1707a [http://www.spinics.net/lists/linux-usb/msg25167.html] See [[N900_Hardware_USB\|more information on USB]]