Datasheet

VS1053b Datasheet
13 LATEST DOCUMENT VERSION CHANGES
13 Latest Document Version Changes
This chapter describes the latest and most important changes to this document.
Version 1.22, 2014-12-19
• Added mention of RIFF 8-bit and 16-bit data signedness to Chapter 10.6, Feeding PCM
Data.
• Updated telephone number in Chapter 14, Contact Information.
Version 1.21, 2014-08-13
• Clarified how Ogg Vorbis set Replay Gain parameters in Chapter 10.11.5, Ogg Vorbis.
• Explained that Bass Enhancer handles the bass part of the audio signal in mono in Chap-
ter 9.6.3, SCI_BASS.
• Added GPIO_DDR[9:8] and GPIO_ODATA[8] explanation to Chapter 11.10, GPIO.
• Moved value from tV(min) to tV(max) in Chapter 7.4.4, SPI Timing Diagram.
• Chapter 10.8, PCM / ADPCM Recording, has been updated to better explain how to
record using the VS1053b Patches package.
• Clarified byte endianness when reading PCM or ADPCM audio data in Chapter 10.8.3,
Adding a PCM RIFF Header, and Chapter 10.8.4, Adding an IMA ADPCM RIFF Header.
Version 1.20, 2012-12-03
• Major update to Chapter 11, VS1053b Registers. Added Chapter 11.3, VS1053b Hard-
ware DAC Audio Paths, Chapter 11.4, VS1053b Hardware ADC Audio Paths, Chap-
ter 11.9, PLL Controller, Chapter 11.15, Analog-to-Digital Converter (ADC), Chapter 11.16,
Resampler SampleRate Converter (SRC), and Chapter 11.17, Sidestream Sigma-Delta
Modulator (SDM). Also revised several other sections.
• Fixed SCI_MODE default value in Chapter 9.6.1, SCI_MODE (RW).
• Added info on how to read DREQ through SCI to Chapter 7.2, Data Request Pin DREQ.
• Slight reorganization to make datasheet more similar to VS1063a Datasheet.
Version 1.13, 2011-05-27
• xRESET, XTALI and XTALO high-level are referenced from IOVDD in Chapter 4.5.
Version: 1.22, 2014-12-19 88