34.807IRELESS IMPORTANT NOTICE Dear customer, As from August 2nd 2008, the wireless operations of STMicroelectronics have moved to a new company, ST-NXP Wireless. As a result, the following changes are applicable to the attached document. ● Company name - STMicroelectronics NV is replaced with ST-NXP Wireless. ● Copyright - the copyright notice at the bottom of the last page “© STMicroelectronics 200x - All rights reserved”, shall now read: “© ST-NXP Wireless 200x - All rights reserved”. ● Web site - http://www.st.com is replaced with http://www.stnwireless.com ● Contact information - the list of sales offices is found at http://www.stnwireless.com under Contacts. If you have any questions related to the document, please contact our nearest sales office. Thank you for your cooperation and understanding. ST-NXP Wireless 34.807IRELESS www.stnwireless.com STw4820 Mixed-signal multimedia and power management IC Data Brief 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 ■ ■ ■ VFBGA 8 mm x 8 mm x 1.0 mm, 0.4mm pitch Applications – Nomadik™ STn88xx multimedia processor – Smartphones, portable media player 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. General-purpose analog digital converter – 4- and 5-wire touch screen interface – Main and back-up battery monitoring – Accessory detection With its highly efficient set of regulators, STw4820 optimizes overall power consumption of multimedia processor and its peripherals. Clock management – 32 kHz oscillator with RTC – System clock oscillator (38.4 MHz, 26 MHz, 19.2 MHz supported) The high fidelity and versatile embedded audio codec offers best-in-class audio quality and extensive uses cases. Miscellaneous – ON/OFF key driver – Temperature shutdown – Lead-free and halogen-free package February 2008 The high-speed USB transceiver makes PC synchronization faster than ever. Integrated OTG supply enables data transfer towards other peripherals. Rev 1 For further information contact your local STMicroelectronics sales office. 1/6 www.st.com 6 Overview STw4820 1 Overview 1.1 Power management for platform ● ● 1.2 1.3 2/6 3 very low load/line transient step-down converters – for core DSP, I/Os, peripherals, external memories, DDR, SRAM – programmable from 0.8 up to 1.8 V – 800 mA current capability – 12.5 mV step for digital voltage frequency scaling 6 LDOs – for PLLs, processor permanent core, high-speed interface and peripherals – 1.2 V to 3.3 V with current capability up to 200 mA. Audio ● Dual stereo codec ● DAC: dynamic range and SNR > 100 dB ● Multiple mixing capabilities and use case support ● Two TDM 4-channel interfaces (configurable in I2S and PCM) ● Switchable differential stereo inputs, line or microphone ● Two digital microphone inputs able to manage 4 digital microphones ● Differential microphone stereo inputs ● AB class headset capless stereo amplifier ● AB class earpiece differential amplifier ● D class loudspeaker stereo amplifier (2 x 1 W) ● D class vibrator differential amplifier USB 2.O OTG interface ● High-speed (480 Mb/s), full-speed (12 Mb/s) and low-speed (1.5 Mb/s) OTG transceiver ● UART mode ● ULPI interface ● VBUS charge pump can supply an external USB device (100 mA). STw4820 1.4 1.5 Overview TVout ● 27 MHz PLL ● YCbCr 4:2:2 8-bit input format ● CVBS output ● TV standards supported 1.7 PAL B, D, G, H, I, N, Nc, M – NTSC M, J, 4.43 ● Macrovision 7.1.L.1 ● TV/VCR plug insertion detection General-purpose analog digital converter ● 1.6 – Touch screen interface – supports 4 and 5-wire resistive touch screen – supports joystick (exclusive with touch screen) ● Main battery monitoring ● Backup battery monitoring ● Two auxiliary inputs ● Two accessory detection inputs Clock management ● 32 kHz oscillator with RTC ● System clock oscillator (38.4, 26, 19.2 MHz supported) ● System clock and 32 kHz clock distribution Miscellaneous ● ON/OFF key driver ● Temperature shutdown ● SPI interface for control ● Dedicated I2C bus for Vcore1 dynamic voltage control ● Backup battery control and charge 3/6 Block diagram 2 Block diagram Figure 1. STw4820 functional block diagram 4/6 STw4820 STw4820 3 Ordering information Ordering information Table 1. Order codes Order codes Package Packing STW4820U4/HF(1) VFBGA 8 mm x 8 mm x 1 mm, 0.4 mm pitch Tray STW4820U4T/HF VFBGA 8 mm x 8 mm x 1 mm, 0.4 mm pitch Tape and reel 1. ECOPACK® package. 4 Revision history Table 2. Document revision history Date Revision 07-Feb-2008 1 Changes Initial release. 5/6 STw4820 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. 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