Philips CDD260 User Manual page 16

Audio specification for headphone:
Output Voltage
(max volume)
Unbalance
Output Impedance
Amplitude Linearity
S/N-ratio
Total Harmonic
Distortion + Noise
Outband attenuation
Channel separation
Muting level during
random access
Note 1:
The somewhat reduced audio quality when playing back audio
tracks on CD-R discs has NO RELATION to the DIGITAL
QUALITY of the audio tracks as they have been recorded onto
the CD-R disc.
Note 2:
This phenomena is caused by the playback decoding electronics
inside the CD-R drive, when playing audio tracks on CD-R discs
(caused by different trackfollowing algorithm on the ATIP
Absolute Time in Pregroove as exists only on a CD-R disc): the
system will fall back to the lesser quality decoding known as
1-time oversampling. On pressed discs, the electronics uses the
standard 4-times oversampling algorithm.
Note 3:
The analog output volume as specified above applies if the elec-
tronic attenuation in the playback circuitry inside the drive is non
operational,
i.e. the electronic volumesetting is at
100%. However as is being recommended by the generic SCSI
standard, the electronic attenuation is set to a default value of
25% at startup, meaning that only 25% of the maximum analog
volume is supplied to the outputs. This attenuation can be
changed by the appropriate software application.
ADDITIONAL INFORMATION
On pressed CD
3.1 V rms
max 0.25 dB
120 Ohm
1.5 dB (20 Hz - 20 kHz)
86 dB (88 dB A-wtg)
60 dB
min. 50 dB above 25 kHz
min. 67 dB (20 kHz)
min. 90 dB (BW = 20 kHz)
On recordable CD
1 V rms
max 0.25 dB
120 Ohm
1.5 dB (20 Hz - 16 kHz)
80 dB (85 dB A-wtg)
45 dB
min. 50 dB above 25 kHz
min. 65 dB (16 kHz)
min. 90 dB (BW = 20 kHz)