
STMicroelectronics
Description
STw4820 is a highly integrated mixed signal multimedia and power management IC that enables complete integration of all analog functions needed in high-end mobile phones or portable multimedia applications.
With its highly efficient set of regulators, STw4820 optimizes overall power consumption of multimedia processor and its peripherals.
FEATUREs
■ Power management for platform
– 3 programmable step-down converters
– 6 programmable LDOs
■ Audio
– Dual high-quality stereo codecs
– DAC: dynamic range and SNR > 100 dB
– Two TDM 4-channel interfaces
(configurable in I2S and PCM)
– AB class headset capless stereo amplifier
– D class loudspeaker stereo amplifier
(2 x 1 W)
■ USB 2.O OTG interface
– High-speed (480 Mb/s) OTG transceiver
– ULPI interface
– VBUS peripheral supply up to 100 mA
■ TVout
– CVBS output
– PAL, NTSC TV standards supported
■ General-purpose analog digital converter
– 4- and 5-wire touch screen interface
– Main and back-up battery monitoring
– Accessory detection
■ Clock management
– 32 kHz oscillator with RTC
– System clock oscillator
(38.4 MHz, 26 MHz, 19.2 MHz supported)
■ Miscellaneous
– ON/OFF key driver
– Temperature shutdown
– Lead-free and halogen-free package
APPLICATIONs
– Nomadik™ STn88xx multimedia processor
– Smartphones, portable media player