NPCA110PA0YX

Nuvoton Confidential NPCA110P Audio Enhancing Engine and CODEC General Description Outstanding Features The Nuvoton NPCA110P device is a member of Nuvoton’s Sound Enhancing family optimized for portable devices such as docking stations for MP3-players and mobile phones, MultiMedia speakers, PC monitor speakers and Boom boxes. ■ The NPCA110P integrates Waves MaxxAudio 3 sound enhancement algorithms. These are proprietary, patented, psychoacoustic algorithms that compensate for the acoustic limitations of small CE devices. ■ ■ ■ ■ ■ — The MaxxAudio 3 algorithms enable reproduction of rich content, with a wide dynamic range and a full frequency range, on a limited audio system. For low-frequency reproduction, MaxxBass uses a patented psychoacoustic technique to create a perceived low bass, which can be extended up to 1.5 octaves lower than the original. This technique reproduces full and rich sounding bass tones. Power handling is done by MaxxVolume, which utilizes the power amplifiers and speakers to their full extent yet avoids clipping and distortions. The MaxxAudio 3 software suite provides additional algorithms that enhance the overall sound quality, such as Maxx3D, which widens the stereo image, and MaxxTreble, for reproducing crystal clear high frequencies. To design a resonance-free audio system, MaxxEQ provides a flexible equalizer with 10 bands. The NPCA110P enables digital control over the Volume and Bass, replacing traditional analog potentiometers. Additional digital controls for selecting a specific music style (Jazz, Vocal, Rap, Classical, etc.) can also be added. MAXXBASS ® — ■ ■ The Maxx family of devices includes: ■ High-performance, 24-bit audio enhancing engine preprogrammed with Waves MaxxAudio 3 algorithms ■ Optional Audio ADC ■ Optional Audio DAC ■ Digital I/O and other features for high-performance audio systems The MaxxAudio Graphical User Interface (GUI) enables sound engineers to easily tune the device and customize presettings for different audio products. Improves audio quality for low-performance speakers System-level BOM savings Stereo operation I2C controlled 24-bit accuracy Audio algorithms ■ ■ ■ ■ — MAXXTREBLE — MAXXEQ — MAXXVOLUME — MAXXLEVELER — MAXXDIALOG ® Audio input — Up to three I2S or Synchronous Serial Interface (SSI) inputs — Up to three stereo analog inputs: typical SNR of 90 dB; typical THD of 75 dB Audio output — Optional generation of bass channel for sub-woofer — Up to three I2S or SSI outputs — Up to four analog outputs: typical SNR of 96 dB; typical THD of 86 dB Several General-Purpose digital signals available to the application (GPIOs) Typical operational power target of less than 0.2W Power-down target of less than 1 mW 3.3V operation Speakers System Block Diagram I2S MP3 Player FM Radio Analog Audio Analog R Power Amplifiers L Optional Analog Audio Bass Controller I2C (Optional) SPDIF Rx I2S CD I2S NPCA110P Analog Audio Headphones AMP © 2013 Nuvoton Technology Corporation GPIOs www.nuvoton.com NPCA110P Audio Enhancing Engine and CODEC October 2013 Revision 1.15 NPCA110P Nuvoton Confidential Features Bus Interfaces ■ Synchronous Serial Interface (SSI) — Compatible with I2S — Master and slave timing support ■ I2C Interface — Compliant with I2C-BUS Specification Revision 1.0, 1992 — Master or slave interface — Supports 7-bit address mode ■ MaxxVolume — MaxxVolume is an all-in-one volume control, with High-Level Compression to increase RMS levels, Low-Level Compression to increase the clarity of soft sounds, Noise Gating to eliminate signal and system noise, and Leveling to smooth out volume levels. ■ MaxxLeveler — MaxxLeveler regulates the perceived volume of the audio, keeping all audio content at the same level. ■ MaxxDialog — MaxxDialog is a revolutionary new technology that enables users to adjust center channel dialog levels without affecting the rest of the audio mix. Based on the Waves Center pro audio plug-in, MaxxDialog delivers clear, crisp dialog that does not disappear behind loud music and sound effects. ■ Sub-Woofer — Enables separating low-frequency content and directing it into a third audio channel, for driving a subwoofer. ■ Filtering to eliminate noise induced by cellular phone transmission Audio Enhancing Engine ■ Processing Unit — 24-bit — 125 MIPs Audio Algorithms ■ Sample frequency of 44.1 KHz or 48 KHz ■ MaxxBass — Patented Waves MaxxBass psycho-acoustic bass extension delivers a more natural sound than traditional bass boost technologies, which use EQ and can overpower your system. MaxxBass analyzes low frequencies to create harmonics that are perceived as lower, deeper tones. ■ ■ ■ Straps, Clocks, Supply and Package Information ■ Maxx3D — Maxx3D extends the span of stereo-side content while maintaining the integrity of unprocessed center content. — Maxx3D for Speakers improves the stereo separation of speakers, widening the stereo field for optimal imaging. — Maxx3D for Headphones improves stereo perception, restoring the original listening balance to provide more natural sound. Strap Input Controlled Operating Modes — PLL reference clock select (REF strap) — Test mode select (nTEST strap) — I2C master or slave select (I2CMS strap) — Boot options ❏ ROM code operation ❏ MaxxTreble — MaxxTreble delivers crystal clear high-frequency enhancement for increased RMS without exceeding the system ceiling. Its proprietary algorithm restores luster to over-compressed formats to provide the perfect listening experience. MaxxEQ — MaxxEQ provides the ability to design EQ curves and shape sound with surgical precision, using up to 10 programmable filters with bell, shelf, low pass, and high pass, plus adjustable frequency, gain, and Q parameters. MaxxEQ’s intuitive Graphic User Interface makes click-and-drag filter design fast and easy. Loadable algorithms for new functions or ROM code patching ■ Input Clocks — SSI / I2S clock: 64x of sample frequency — Optional Crystal oscillator or input clock ■ Power Supply — 3.3V supply operation ■ Power-Save Modes — Clock switch to a lower frequency — WAIT instruction (clock stopped) — PLL power-down ■ Package — 6 x 6 mm, 40-pin Quad Flat No-Lead (QFN) package Algorithm Processing Chain Maxx Bass www.nuvoton.com Maxx 3D Maxx Dialog Maxx Treble 2 Maxx EQ Leveler Maxx Volume Revision 1.15 Revision 1.15 L/RIN3 L/RIN2 L/RIN1 3x Analog inputs -18dB .. 34dB AG ADC -96dB .. 30dB GAIN I2S SDI1 SDI0 3 + + Bypass Processing Path Audio Engine Processing Path Note: Sub Woofer Out Appears on both left and right Sub Woofer Out Stereo Out Figure 1. Device Block Diagram Note: All paths in the diagram are stereo M8 M6 M5 M4 M2 M1 M[1..8] = -inf .. 18 dB M15 M16 M17 M14 M11 M13 M10 M12 M9 M[9..17] = -inf .. 0 dB + + + + -126dB .. 0dB GAIN -126dB .. 0dB GAIN SDO0 DAC2 DAC1 SDO2 SDO1 I2S L/ROUT2 L/ROUT1 3x I2S outputs Features (Continued) NPCA110P 2x I2S inputs Nuvoton Confidential www.nuvoton.com NPCA110P Nuvoton Confidential Revision Record Date Status Comments February 2011 Revision 0.10 Datasheet first revision. June 2011 Revision 0.75 Changes: • Added algorithm processing Chain diagram • Added block diagram • Added Clocks section in Chapter 2 • Added current consumption in Electrical Specification • Various small changes August 2011 Revision 0.80 Changes: • Pins: Corrected that SDA and SCL are OD6 pins • Power and Reset: — Removed TBD from crystal circuit — Added Clocks section • Electrical Specifications: — Changed input type ST VIH level to minimum 2.0 V, VH to 280 mV — — — — — — — Section 4.2.5: Changed maximum leakage of all pins from