dCS Scarlatti Upsampler D/D 數位轉換器

dCS頂級的Scarlatti數位訊源系統(包括SACD/CD轉盤、數位類比處理器與主時鐘訊號產生器等三件)又添加了一部Scarlatti Upsampler,使得整套Scarlatti數位系統擴充為四部器材。這部Scarlatti Upsampler的特殊功能已經為dCS又創下了數項第一的紀錄,這是一部「D/D 數位轉換器」(digital-to-digital converter),(專利申請號碼GB0817141.5),Scarlatti Upsampler的作用主要是能將數位音樂訊源的取樣頻率轉換到更高的標準,包括音樂CD、個人電腦硬碟與媒體伺服器上的音樂檔案。Scarlatti Upsampler的昇頻處理,將CD昇頻到24bit/88.2kHz,再昇頻至24bit/176.4kHz,轉換為DSD信號。這樣可以讓音樂的細節、音場深度與音像分離度更為精進。

Scarlatti Upsampler數位/數位轉換器主要特色:

  • USB端子提供後端dCS Ring DAC數位類比轉換器一個新的通道,讓用戶的個人電腦音樂檔案能得到Hi-End等級的重播聲音品質。
  • 採用尖端多模式相位鎖定迴路(phase locked loop,PLL),能有效降低時鐘之時基誤差。
  • 透過更快速、100%精確的DSP晶片提供更好的音樂細節。
  • 更高容量的可程式化FPGA(Field Programmable Gate Arrays),可容納更多的功能。
  • 更進化的電源供應,使操作溫度更低並增加對交流電源變化的容許度。
  • 未來能透過dCS提供的光碟片進行韌體升級,增加對新數位格式的對應或新功能。
  • 加入多層聲學阻尼處理航太等級鋁材機箱,能降低磁力與震動的影響。
  • 具備低功率液晶顯示幕,讓用戶很容易讀取相關資訊,並有低功率需求與最小化電磁干擾的特性。

 *. Hi-Fi News 專題報導 "The Ultimate DAC", 2009/02

 
Technical Specifications

Type
Digital-to-Digital Converter
Color
Silver or Black
Dimensions
(W) 460mm x (D) 405mm x (H) 73mm
(W) 18.1” x (D) 15.9” x (H) 2.9”
Allow extra depth for cable connectors
Weight
11.5kg/25.3lbs.
Digital Inputs
USB2.0 interface on a B-type connector. Operates in
asynchronous mode.
AES3 on a 3-pin female XLR connector.
4x SPDIF on 2x RCA Phono, 1x BNC connectors and
1x TosLink optical connector.
All digital inputs will accept PCM data at up to 24 bit
PCM at 32, 44.1, 48, 88.2 or 96kS/s.
Digital Outputs
IEEE 1394 interface on 2x 6-way connectors. In DSD
mode, the interface outputs dCS-encrypted DSD (1 bit
data at 2.822MS/s).
2x AES3 on 3-pin female XLR connectors. Each
outputs 24 bit PCM at 32, 44.1, 48, 88.2 or 96kS/s,
OR as a Dual AES pair at 88.2, 96, 176.4 or 192kS/s.
2x SPDIF on RCA Phono and BNC connectors. Each
outputs 24 bit PCM at 32, 44.1, 48, 88.2 or 96kS/s.
1x SDIF-2 interface on 2x BNC connectors, outputs
24 bit PCM at 32, 44.1, 48, 88.2 or 96kS/s.
Word Clock I/O
Word Clock Input on 1x BNC connector. Accepts
standard word clock at 32, 44.1, 48, 88.2 & 96kHz.
Sensitive to TTL levels.
Word Clock Output on 1x BNC connector. Outputs
standard word clock at a frequency equal to the
(single wire) output data rate, or 44.1kHz when set to
output DSD.
Upsampling Rates
Data from any input may be converted to 24 bit PCM
at 32, 44.1, 48, 88.2, 96, 176.4 or 192kS/s or DSD (1
bit data at 2.822MS/s). The output sample rate must
be equal to or greater than the input sample rate.
Spurious Responses
Better than –100dB0 @ 20Hz - 20kHz for Fs> 32kS/s,
20Hz – 14kHz for 32kS/s .
Filters
PCM mode - 4 filters give different trade-offs between
the Nyquist image rejection and the phase response
when converting 44.1 > 88.2, 44.1 > 176.4, 44.1 >
DSD, 48 > 96, 48 > 192 or 88.2 to DSD.
Software Updates
Loaded from CD.
Local Control
P hilips Pronto™  programmable remote control is supplied with Scarlatti Transport, or RS232.
Power Supply
Factory set for 100, 115, 220 or 230 V AC, 49 –
62Hz.
Power Consumption
12.7 Watts typical/ 15 Watts maximum.


回上一頁
傑富國際企業有限公司 Jeffu international Co., Ltd. 版權所有 Copyright © 2008
台北市松山區塔悠路331號 TEL:02-2748-6518   FAX:02-2748-6517   E-mail: jeff.audio@msa.hinet.net