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VS1000のメーカーはVLSIです、この部品の機能は「Ogg Vorbis Player IC」です。 |
部品番号 | VS1000 |
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部品説明 | Ogg Vorbis Player IC | ||
メーカ | VLSI | ||
ロゴ | |||
このページの下部にプレビューとVS1000ダウンロード(pdfファイル)リンクがあります。 Total 27 pages
VS1000 Datasheet
VS1000 - Ogg Vorbis Player IC with
USB and NAND FLASH Interface
Hardware Features
• Low-power operation
• Single input voltage: Internal voltage reg-
ulation for analog, digital, and I/O power
• Operates with a single 12 MHz clock
• Internal PLL clock multiplier
• Power button pin,
software-controlled power-off
• USB Full Speed hardware
• NAND FLASH interface with ECC
• I/O for user interface
• High-quality on-chip stereo DAC with no
phase error between channels
• Stereo earphone driver capable of
driving a 30 Ω load
• Lead-free RoHS-compliant package
(Green)
Firmware Features
• Implements USB Mass Storage Device
and Audio Device
• NAND FLASH handling with error cor-
rection, block remapping, and wear lev-
elling
• Default player application in firmware
– Decodes Ogg Vorbis, sound level
normalization using Replay Gain
– Pause / Play
– Volume control
– Next / Previous Song
– Rewind and Fast Forward
– Random Play
– EarSpeaker Spatial Processing
• Bass and treble controls for customized
player
• NAND FLASH boot for customized player
• SPI FLASH boot for special applications
• UART for debugging and special appli-
cations
Description
VS1000 is a single-chip Ogg Vorbis (license-
free audio codec) player and a system-on-a-
chip (SoC) for various control and audio ap-
plications. VS1000 contains a high-perfor-
mance low-power DSP core VSDSP4, NAND
FLASH interface, Full Speed USB port, gen-
eral purpose I/O pins, SPI, UART, as well as a
high-quality variable-sample-rate stereo DAC,
and an earphone amplifier and a common
voltage buffer.
VS1000 firmware implements a default player
that reads and plays files from NAND FLASH.
The player can be customized or replaced by
boot from NAND FLASH or SPI memory.
When connected to USB, the firmware imple-
ments USB Mass Storage Device protocol or
acts as an Audio Device, providing a single-
chip USB headphone application.
EarSpeaker spatial processing provides more
natural sound in headphone listening condi-
tions. It widens the stereo image and posi-
tions the sound sources outside the listener’s
head.
SPI EEPROM can be used to load code in
applications that do not use NAND FLASH.
Version: 1.44, 2014-12-19
1
1 Page VS1000 Datasheet
LIST OF FIGURES
List of Figures
1 VS1000 pin configuration, LQFP-48. . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 VS1000 pins, LQFP-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3 VS1000 example schematic. Use 100 kΩ for R25, R26, R17, R18, R10, R30,
R24, R12. Use 10 kΩ for R27, R28, R29, R31, R32, R19, R13. Populate only
one of R12 and R13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4 VS1000 block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5 EarSpeaker externalized sound sources vs. normal inside-the-head sound. . . . 24
Version: 1.44, 2014-12-19
3
3Pages VS1000 Datasheet
3 CHARACTERISTICS & SPECIFICATIONS
3.3 Analog Characteristics of Audio Outputs
Unless otherwise noted: AVDD=2.8V, CVDD=2.4V, IOVDD=2.8V, TA=-40..+85◦C, XTALI=12 MHz,
Internal Clock Multiplier 3.0×. DAC tested with full-scale output sinewave, measurement bandwidth
20..20000 Hz, analog output load: LEFT to CBUF 30 Ω, RIGHT to CBUF 30 Ω.
Parameter
DAC Resolution
Dynamic range (DAC unmuted, A-weighted, min gain)
S/N ratio (full scale signal, no load)
S/N ratio (full scale signal, 30 ohm load)
Total harmonic distortion, max level, no load
Total harmonic distortion, max level, 30 ohm load
Crosstalk (L/R to R/L), 30 ohm load, without CBUF 1
Crosstalk (L/R to R/L), 30 ohm load, with CBUF
Gain mismatch (L/R to R/L)
Frequency response
Full scale output voltage
Deviation from linear phase
Analog output load resistance
Analog output load capacitance
DC level (CBUF, LEFT, RIGHT)
CBUF disconnect current (short-circuit protection)
Symbol
IDR
SNR
SNRL
THD
THDL
XTALK1
XTALK2
GERR
AERR
LEVEL
PH
AOLR
AOLC
Min
75
-0.5
-0.05
450
1.1
Typ
18
96
92
90
0.01
0.1
75
54
530
0
302
130
Max
0.3
0.5
0.05
600
5
1003
1.3
200
Unit
bits
dB
dB
dB
%
%
dB
dB
dB
dB
mVrms
◦
Ω
pF
V
mA
1 Loaded from Left/Right pin to analog ground via 100 µF capacitors.
2 AOLR may be lower than Typical, but distortion performance may be compromised. Also,
there is a maximum current that the internal regulators can provide.
3 CBUF must have external 10 Ω + 47 nF load, LEFT and RIGHT must have external 20 Ω +
10 nF load for optimum stability and ESD tolerance.
Version: 1.44, 2014-12-19
6
6 Page | |||
ページ | 合計 : 27 ページ | ||
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PDF ダウンロード | [ VS1000 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
VS1000 | Audio Module | VLSI |
VS1000 | Ogg Vorbis Player IC | VLSI |
VS1001 | MPEG AUDIO CODEC | ETC |
VS1001K | MPEG AUDIO CODEC | ETC |