Apogee AD-8000 Specifications download pdf (Page 32)

AD-8000 Operating Manual

Page 32

ANALOG AND A/D CONVERTER

Parameter Value Units

Resolution 24 bits

Sample Rate 32–54 kHz

Input Impedance

Pro 9K Ω

Consumer 15K Ω

Relative THD+N

–0.1 dBFS –108 dB

–110.5 dB (A-weighted)

–20 dBFS –88 dB

–91 dB (A-weighted)

–60 dBFS –52 dB

–54 dB (A-weighted)

Dynamic range

–60 dB 112 dB

–60 dB, A-weighted 114 dB

Peak Spurious Component –120 dB (Max)

Group Delay (in passband) 38.7/Fs seconds

Passband Ripple ±0.001 dB

Digital Filter Stopband 26.232 kHz

Stop-band Attenuation 110 dB

Channel Separation

Left/right 113 dB (Worst Case)

Between pairs 113 dB (Worst Case)

Frequency Response (20 Hz–20 kHz)

Gain ±0.025 dB

Phase <2 Degrees

Common-Mode Rejection Ratio

60 Hz > 100 dB

1 kHz > 80 dB

Input Level, Maximum (No Gain)

Professional, balanced 27 dBu

Professional, unbalanced 23 dBu

Consumer, balanced 16 dBu

Consumer, unbalanced 15 dBu

Input Level, Adjustment Range 20 dBu

Crystal Oscillator Accuracy ±25 ppm

Clock Jitter, 32kHz–54 kHz << 50 psec

Note: These specifications are

subject to change without notice.

HEADPHONE D/A AND AMPLIFIER

Resolution 18 bits

Sample Rate 32–54 kHz

Relative THD+N, S/(N+D)

–0.5 dBFS input –88 dB

Dynamic range

–60 dB –94.6 dB

–60 dB, A-weighted (EIAJ), typ –96 dB

Group Delay (in passband) 22.25/Fs sec

Passband Ripple ±0.17 dB

Stop-Band Attenuation 35 dB

Channel Separation

DAC 97 dB

Amplifier 65 dB

Frequency Response (20Hz–20 kHz)

Gain ±0.05 dB

Phase < 2.5 degrees

Output Level (max) 8 Vp-p

Output Power (max)

8 Ω load 1 W/channel

150 Ω load 50 mW/channel

600 Ω load 20 mW/channel

DIGITAL SIGNAL PROCESSOR

Processing Delay 16/Fs Seconds

DC High-Pass Filter Corner Freq. 1.0 Hz

UV22 Amplitude

Normal, 16 bits –84 dB

Low, 16 bits –90 dB

Normal, 20 bits –108 dB

Low, 20 bits –114 dB

Metering

Accuracy ± 0.05 dB

Over Detection 1–4 consecutive

0 dBFS readings

(User-definable)

SYSTEM

AC line voltage 100, 120, 220, 240 vac

(set internally)

Fusing 1 A slow-blow U.S.A.

Power 60 Watts

Size (w, h, d) 19 in, 3.5 in (2U), 14.25 in

Weight 20 lb (9.1 kg)

Appendix IV: AD-8000 Specifications

Public Revision History

Version 1.0, July 24, 1997 – Initial release version: for distribution.

Version 1.1, August 29, 1997 – Reference to DIP switch corrected on p11 (“Connections”). Minor revisions to

diagram on p31 (NTSC generator with DA-88). Release version for distribution.

Version 1.2b, October 7, 1997 – Corrections to reflect firmware revisions 0.55-1.02. Discussion of Autosync and

power-up version display added.

Version 1.3, December 1997 – Corrections and additions to reflect firmware revisions to 1.15. Changes from

previous firmware revisions is available on the Apogee Web Site.

Version 1.4, November 1998 – Corrections and additions to meet CE requirements. Some additional informa-

tion included.

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Apogee AD-8000 Specifications Page 32

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