Meridian America Meridian 518 manual Additional technical information, Specification

Additional technical information 40

the dynamic range of the signal itself. A typical application may be a full- range DSP volume control, where e.g. a 16 bit input is modified by a gain control function and passed out to a DAC of 18 or 20 bits. In these cases:

∙If the programme material permits, use pre-emphasis

∙Use Shape A or high-pass dither.

Additional technical information

Specification

Inputs	3 cable and one TOSLINK optical.
	Digital serial interface to AES/EBU or SPDIF
	2 channels up to 24 significant bits
Outputs	Digital serial interface to AES/EBU or SPDIF
	2 channels up to 24 significant bits.
Sampling Frequency	32kHz – 48kHz.
Twin PLL	Second phase-lock loop minimises jitter at
	44.1kHz to approx. 3pS rms.
Input word selection	16, 18, 20, 22, 24 bits
Output word selection	16, 18, 20, 22, 24 bits
Channel status	Output selectable professional or consumer
Dither options	Additive white spectrum TPDF
	Additive high-pass spectrum TPDF
Noise shapers	5 specific types offered, optimised for each
	sampling frequency, with and without pre-
	emphasis and for MAF and MAP hearing
	thresholds.
Processing	Gain control in 1dB steps from +12 to –99dB
	Digital-domain pre-emphasis
	Digital-domain de-emphasis
Accuracy	72 bit internal precision
Display	Gain, processing mode, dither, incoming
	emphasis, clipping.
Digital Subcode	Channel status only
Controls	Source, Display, DSP, Dither, In, Out, Gain
Dimensions	325 x 100 x 320mm, (12.9 x 3.9 x 12.6")
Weight	5 kg (10 lb.)

518 User Guide