N900 Hardware Power management: Difference between revisions

Revision as of 20:03, 3 May 2010

The TWL4030 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, ...

@@ Line 1: / Line 1: @@
 The TWL4030 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]]
 It seems to be documented - not under this part number - at [http://focus.ti.com/docs/prod/folders/print/tps65950.html TIs website]