NPCA110BA0YX

  Nuvoton Confidential NPCA110B Audio Enhancing Engine and CODEC General Description Outstanding Features The Nuvoton NPCA110B device is a member of Nuvoton’s Sound Enhancing family optimized for low cost TV, portable devices such as docking stations for MP3-players and mobile phones, Multi-Media speakers, PC monitor speakers and Boom boxes. ■ The NPCA110B integrates Waves MaxxAudio-3 Lite sound enhancement algorithms. These are proprietary, patented, psychoacoustic algorithms that compensate for the acoustic limitations of small CE devices. MaxxAudio-3 Lite 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 distortion. ■ ■ ■ ■ ■ ■ ■ The MaxxAudio-3 Lite software suite provides an additional algorithm to design a resonance-free audio system: MaxxEQ provides a flexible equalizer with 10 bands. The NPCA110B enables digital control over the volume and bass, replacing traditional analog potentiometers. ■ The Maxx family of devices includes: ■ ■ ■ High-performance, 24-bit audio enhancing engine preprogrammed with Waves MaxxAudio-3 Lite algorithms ■ Optional Audio ADC ■ Optional Audio DAC ■ Digital I/O and other features for high-performance audio systems ■ Improves audio quality for low-performance speakers System-level BOM savings Stereo operation I2C controlled 24-bit accuracy Audio algorithms — MAXXBASS — MAXXEQ — MAXXVOLUME ® ® Audio input — One I2S or Synchronous Serial Interface (SSI) input — Up to two stereo analog inputs: typical SNR of 90 dB; typical THD of 75 dB Audio output — One I2S or SSI output — Two 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 0.15W Power-down target of less than 0.5 mW 3.3V operation The MaxxAudio Graphical User Interface (GUI) enables sound engineers to easily tune the device and customize presettings for different audio products. System Block Diagram Speakers I2S MP3 Player FM Radio Controller Analog Audio Analog Power Amplifiers R L Analog Audio I2C (Optional) NPCA110B Analog Audio Headphones SPDIF Rx or TV Chipset I2S © 2012 Nuvoton Technology Corporation AMP GPIOs www.nuvoton.com NPCA110B Audio Enhancing Engine and CODEC February 2012 Revision 1.1 NPCA110B 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 Straps, Clocks, Supply and Package Information ■ Audio Enhancing Engine ■ Processing Unit — 24-bit accuracy — 90 MIPs 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 ❏ Audio Algorithms ■ Sample frequency of 44.1 KHz or 48 KHz supported ■ 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. ■ 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. 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: 64 x sample frequency — Optional crystal oscillator or input clock ■ Power Supply — 3.3V supply operation ■ Power-Save Modes — Clock switch to a lower frequency — WAIT state (clock stopped) — PLL power-down ■ Package — 5 x 5 mm, 32-pin Quad Flat No-Lead (QFN) package Algorithm Processing Chain Maxx Bass www.nuvoton.com Maxx EQ 2 Maxx Volume Revision 1.1 Revision 1.1 L/RIN2 L/RIN1 2x Analog inputs -18dB .. 34dB AG ADC -96dB .. 30dB GAIN I2S SDI0 3 + + Bypass Audio Engine Processing Path Stereo Out Figure 1. Device Block Diagram Note: All paths in the diagram are stereo M8 M5 M4 M1 Mx = -inf .. 18 dB M16 M17 M12 M9 Mx = -inf .. 0 dB + + -126dB .. 0dB GAIN DAC2 SDO0 L/ROUT2 I2S One I2S output Features (Continued) NPCA110B One I2S input Nuvoton Confidential www.nuvoton.com NPCA110T 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