PCXpocket 440. Professional Digital Audio Card. User s manual. DU IS=A

Transcription

1 PCXpocket 440 Professional Digital Audio Card User s manual DU IS=A

2 CONTENTS Information for the user 1 Overview 2 Installation 3 Specifications 4-5 Schematic diagram 6-7 Copyright 1999 Digigram. All rights reserved. No portion of this manual may be reproduced without prior written consent from Digigram. The copyright protection claimed here includes photocopying, translation and/or reformatting of the information contained in this manual. Digigram is not responsible for errors and omissions and reserves the right to make improvements or changes without prior notice. Digigram and Xtrack are registered trademarks of Digigram. PCXpocket, PCXtools and PCX Designer Kit are trademarks of Digigram. Other trademarks are property of their respective holders.

3 PCXpocket 440 User s manual OVERVIEW Features Audio card for PC-Card bus (type II format) 4 balanced analog mono inputs (Microphone and Line Level) 1 digital SPDIF stereo input 1 LTC time code input (RCA) 4 balanced analog mono outputs. 1 digital SPDIF stereo output Hardware requirements One standard type II card slot, PC-Card compliant. One available IRQ line (level sensitive). 16 bytes of available I/O space. One Analog and Digital Cable (provided in the same package) Software requirements Digigram npruntime V5.30 or later including WAVE driver 2 11

4 INFORMATION FOR THE USER Important notice: please make sure that there is a good contact between the bracket and the PC frame. This device complies with part 15 of FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a CLASS B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions contained in this data sheet, may cause harmful interference to radio and television communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: * reorient or relocate the receiving antenna * increase the separation between the equipment and the receiver * connect the equipment into an outlet on a circuit different from that of the receiver * consult the dealer or an experienced audio television technician. NOTE: Connecting this device to peripheral devices that do not comply with CLASS B requirements or using an unshielded peripheral data cable could also result in harmful interference to radio or television reception. The user is cautioned that any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate this equipment. To ensure that the use of this product does not contribute to interference, it is necessary to use shielded I/O cables. EMC: This card has been tested and found to comply with the following standards: International: CISPR22 Class B. Europe: EMC 89/336/CEE (1992) specifications. United States: FCC Rules-Part 15-Class B (digital device). In order to guarantee compliance with the above standards in an installation, the following must be done: Connectors must have a conductive shell. Cables must be shielded and their shield must be tightly connected to the shell of the connectors. A good contact must exist between the bracket and the PC frame. 1

5 INSTALLATION Hardware installation Installing the card Check for a free PC-Card expansion slot and gently insert the card. Press to set it firmly into the slot. Interrupt request The Interrupt Request (IRQ) number is set up at start-up by the PnP BIOS. Be sure there is at least one IRQ resource available. I/O address Addresses are set up at start-up by the PnP BIOS. Software installation No driver floppy disk is delivered with the card. Please ask your supplier for an updated driver or download it from the Digigram Web site. Be sure that the driver has been approved by your supplier. Your supplier s application may request the use of a specific driver. Please refer to the driver installation documentation which is delivered with the driver. It details the installation procedure to follow under Windows 95/98 or Windows NT. 10 3

6 PCXpocket 440 User s manual SPECIFICATIONS Inputs Analog line inputs 4 balanced analog line inputs (can be used with unbalanced signals). software programmable microphone or line input level maximum input line level: +10dBu (-10dBV nominal with 18dB overhead). input micro line level : - 20dBu or - 38 dbu input impedance : >10 kohms 24 bits analog to digital converters (64 x oversampling delta-sigma) line input level adjustment: digital Gain/Attenuation microphone input level adjustment : digital Gain/Attenuation Digital input 1 S/PDIF. 24 bits available. LTC input maximum input level: +6 dbu. minimum input level (sensitivity): -20 dbu. speed: nominal +/- 20 %. Outputs Analog outputs 4 balanced analog outputs (can be used as unbalanced). maximum level : +10dBu (software adjustable) output impedance < 100Ohms. 24 bits digital to analog converters (64 x oversampling delta-sigma). output level adjustment : down to dBu by 0.5dB steps. maximum load: 600 Ohms. Digital output 1 S/PDIF. 24 bits available. synchronization with digital input complies with AES

7 PCXpocket 440 User s manual Sampling frequencies Adjustable from 8 khz to 50 khz in 0.5 % steps (complying with AES11) Analog characteristics Signal / Noise ratio (un-weighted): better than 94 db Total Harmonic Distortion + Noise (un-weighted): better than - 89 db (0.003%) with 1kHz signal at - 2 dbfs Frequency response (20Hz/20kHz): ± 0.15 db Difference in phase (20Hz/20kHz): 0.2 / 2 Interchannel isolation at 1 khz: better than - 95 db Characteristics measured at 48 khz sampling frequency, record + playback in linear. Processing Processing power is provided by a Motorola DSP associated with 768 kbytes of RAM. Miscellaneous Physical Card designed for PC-Card interface (Type II Format) Power consumption Supply voltage: + 5 V Power on: 340 ma (1.7 W) typical Power off: < 100 ma (0.5 W) typical Environmental Temperature: Storage : -5 C / +70 C Operating : 0 C / +50 C Humidity (non condensing): Storage : 0% / 95% (non condensing) Operating : 5% / 90% (non condensing) 8 5

8 PCXpocket 440 User s manual SCHEMATIC DIAGRAM INTERBOARD SYNC INTERBOARD SYNC IN / OUT DIGITAL IN RECEIVE CLOCK GENERATION TRANSMIT DIGITAL OUT ANALOG IN Level setting ADC ADC DSP INTERFACE DAC DAC Level adjust ANALOG OUT LTC in Level adaptor PCMCIA BUS 6 7