Cambridge Audio 840C User Manual

840C Upsampling compact disc player

Azur upsampling compact disc player  19

TECHNICAL SPECIFICATIONS

D/A converters

Dual Analog Devices
AD1955 24 bit DACs

Digital filter

Analog Devices Black Fin 
ADSP-BF532 32 bit DSP
Performing ATF

TM

upsampling to 24 bit 384kHz

Analog filter

2 Pole Fully Differential
Linear Phase Bessel filter 

Frequency response

20Hz to 20kHz (+/-0.1dB)

THD @ 1Khz 0dBFs

< 0.0005%

THD @ 1Khz -10dBFs

< 0.0004%

THD @ 20Khz 0dBFs

< 0.0007%

IMD (19/20kHz) 0dBFs

< 0.0002%

Linearity @ -90dBFs

+/- 0.5dB

Stopband rejection (>24kHz)

> 120dB

S/N ratio, A weighted

> 113dB

Total correlated jitter

< 130pS

Crosstalk @1kHz

< -130dB

Crosstalk @20kHz

< -114dB

Output impedance

< 50 ohms

Digital input word widths supported

16 - 24 bit

Digital output word widths supported

16, 20, 24 bit 

Digital input sampling frequencies supported

32kHz, 44.1kHz, 48kHz, 88.2kHz,
96kHz, 176.4kHz, 192kHz

Digital output sampling frequencies supported

32kHz - 192kHz pass through
(Including 44.1kHz for CD)

48kHz, 96kHz, 192kHz upsampled

Audio output upsampling

Fixed 24 bit, 384kHz

Dimensions - H x W x D

115 x 430 x 360mm
(4.5 x 16.9 x 14.7”) 

Weight

8.5kg (18.7lbs)