Gallery Court Hankey Place London SE1 4BB UK
Tel: +44 (0)20 7940 2200 Fax: +44 (0)20 7940 2233
640C V2
Issue Date: 30
th
November 2005
Revised Date 1
st
Issue: 20
th
November 2006
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SERVICE MANUAL
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SPECIFICATIONS:
D/A Converter Dual Wolfson WM8740
24-Bit/192kHz capable
Filter 4 Pole Dual Differential
Double Virtual Earth balanced
Frequency Response (+/-0.1dB) 20Hz – 20kHz
THD @ 1Khz 0dBFs <0.0010%
THD @ 1Khz -10dBFs <0.0005%
THD @ 20Khz 0dBFs <0.0070%
IMD (19/20 kHz) 0dBFs <0.0008%
Linearity @ -90dBFs +/- 0.5dB
Stop band rejection (>24 kHz) > 90dB
S to N ration, A weighted >104dB
Total correlated jitter <160pS
Crosstalk @1kHz <-100dB
Crosstalk @20kHz <-99dB
Output impedance <50 ohms
Dimensions (H x W x D) 70 x 430 x 310 mm
Weight 4.6kg (10.1lbs)
AP19501/2
1
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