- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄378470 > CXD1856R (Sony Corporation) MPEG1 Decoder PDF資料下載
參數(shù)資料
| 型號： | CXD1856R |
| 廠商： | Sony Corporation |
| 英文描述： | MPEG1 Decoder |
| 中文描述： | MPEG1解碼器 |
| 文件頁數(shù)： | 25/31頁 |
| 文件大?。?/td> | 395K |
| 代理商： | CXD1856R |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁當前第25頁第26頁第27頁第28頁第29頁第30頁第31頁
– 25 –
CXD1856Q/R
4-7. Audio Decoder Function
MPEG audio stream decoding is performed for MPEG1 standard (ISO/IEC 11172-3) layer 1 and layer 2.
Monaural, dual, stereo and joint stereo decoding modes are supported.
All MPEG1 standard sampling frequencies (32kHz, 44.1kHz, 48kHz) are supported.
All MPEG1 standard bit rates are supported.
Layer 1: 32Kbps (monaural/stereo) to 448Kbps (monaural/stereo)
Layer 2: 32Kbps (monaural) to 384Kbps (stereo)
The audio decoder's audio interface output port is equipped with a PCM audio output which outputs decoded
audio data in bit serial format and a digital audio interface output (digital out). The audio interface is set by
setting the internal registers.
1) LRCK and BCK generation
The LR clock and bit clock can be generated by frequency dividing the clock input from external pins XTLI
or FSXI. The generated clocks are output from the BCKO and LRCO pins, respectively. LRCO and BCKO
can be output in the desired polarity. Also, the number of slots per sample supports the three types of 32,
48 and 64 bit clocks/LRCK.
2) PCM audio output format
The PCM audio output format can be set to any of the following combinations to allow connection with a
wide range of 1-bit D/A converters.
16-bit word length, MSB first or LSB first, frontward truncation or rearward truncation
18-bit word length, MSB first or LSB first, frontward truncation or rearward truncation
20-bit word length, MSB first or LSB first, frontward truncation or rearward truncation
24-bit word length, MSB first or LSB first, frontward truncation or rearward truncation
3) Digital out format
The digital out output format supports the type2, form1 format for consumer use. The output word length
can be selected from 16, 18, 20 or 24 bits.
4) Decoded channel assignment
Channels 1 and 0 of the audio sample obtained by decoding the MPEG audio stream can be assigned to
the L and R channel outputs in any combination.
5) Audio mute
The audio output contains a zero-cross mute circuit. Zero-cross detection is performed for 44 sample
sections (approximately 0.1ms when fs = 44.1kHz), and if zero-cross is not detected, the output is forcibly
muted.
6) Attenuator
The audio output contains an attenuator circuit. Attenuation of –12dB can be obtained by setting the
internal register.
7) CD-DA output mode
When playing back a CD-DA disc, the data input from the CD-DSP can be output directly from the PCM
audio output (DATO) and the digital audio interface output port (DOUT). Output ports LRCO and BCKO can
also select and output the clock inputs LRCI and BCKI from the CD-DSP.
相關PDF資料 |
PDF描述 |
|---|---|
| CXD1922Q | 10268-6212 VC 68 POS. |
| CXD1930Q | MPEG Video Decoder |
| CXD1947Q | IEEE1394 LINK Layer / PCI Bridge LSI |
| CXD1969 | CableCARDTM INTERFACE CONTROLLER |
| CXD2043 | Digital Comb Filter (NTSC) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| CXD1910AQ | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Video Encoder |
| CXD1913AQ | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Video Encoder |
| CXD1913Q | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Encoder Circuit |
| CXD1914Q | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Video Encoder |
| CXD1915R | 制造商:SONY 制造商全稱:Sony Corporation 功能描述:Digital Video Encoder |
發(fā)布緊急采購，3分鐘左右您將得到回復。