參數(shù)資料
型號: VS1003
廠商: Electronic Theatre Controls, Inc.
元件分類: Codec
英文描述: MP3 / WMA AUDIO CODEC
中文描述: MP3播放/ WMA音頻編解碼器
文件頁數(shù): 23/57頁
文件大小: 456K
代理商: VS1003
VLSI
Solution
y
VS1003 PRELIMINARY
VS1003
8. FUNCTIONAL DESCRIPTION
8
Functional Description
8.1
Main Features
VS1003 is based on a proprietary digital signal processor, VS DSP. It contains all the code and data
memory needed for MP3, WMA and WAV PCM + ADPCM audio decoding, MIDI synthesizer, together
with serial interfaces, a multirate stereo audio DAC and analog output amplifiers and filters. Also AD-
PCM audio encoding is supported using a microphone amplifier and A/D converter. A UART is provided
for debugging purposes.
8.2
Supported Audio Codecs
Conventions
Description
Format is supported
Format exists but is not supported
Format doesn’t exist
Mark
+
-
8.2.1
Supported MP3 (MPEG layer III) Formats
MPEG 1.0
1
:
Samplerate / Hz
Bitrate / kbit/s
96
+
+
+
32
+
+
+
40
+
+
+
48
+
+
+
56
+
+
+
64
+
+
+
80
+
+
+
112
+
+
+
128
+
+
+
160
+
+
+
192
+
+
+
224
+
+
+
256
+
+
+
320
+
+
+
48000
44100
32000
MPEG 2.0
1
:
Samplerate / Hz
Bitrate / kbit/s
56
+
+
+
8
+
+
+
16
+
+
+
24
+
+
+
32
+
+
+
40
+
+
+
48
+
+
+
64
+
+
+
80
+
+
+
96
+
+
+
112
+
+
+
128
+
+
+
144
+
+
+
160
+
+
+
24000
22050
16000
MPEG 2.5
1 2
:
Samplerate / Hz
Bitrate / kbit/s
56
+
+
+
8
+
+
+
16
+
+
+
24
+
+
+
32
+
+
+
40
+
+
+
48
+
+
+
64
+
+
+
80
+
+
+
96
+
+
+
112
+
+
+
128
+
+
+
144
+
+
+
160
+
+
+
12000
11025
8000
1
Also all variable bitrate (VBR) formats are supported.
2
Incompatibilities may occur because MPEG 2.5 is not a standard format.
Version 0.92,
2005-06-07
23
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