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Philips DAC, ADC, IS5021 sound enhancer

596 x gezien 16 x bewaard sinds 07 jul. '17, 15:39


Conditie : Gebruikt
Capaciteit : Zonder harde schijf


Aangeboden, een Philips IS5021 sound enhancer.

Met dit apparaat zijn veel mogelijkheden mogelijk, waaronder het de-scratchen van plaat/cassette opnames en het digitaal bewerken van opnames. 
Je kunt opnames geheel in het digitale domein bewerken.

Daarnaast is het apparaat te gebruiken als d/a en/of a/d converter. Goede kwaliteit dankzij de tda1547 d/a converter en 20-bit A/D converters (ADMOD79). 

De IS5021 wordt geleverd inclusief originele stroomadapter, digitale kabel, handleiding en 220V naar 110V omvormer. 


Uit de originele brochure: 
"This product offers recording studio engineers, home studios owners, post production facilities, corporate A/V centers, archivist, and broadcast professionals unmatched performance and value for an integrated set of advanced sound processing technologies developed by Philips.

This powerful audio processor connects easily into any stereo system. It is perfect for transferring records to digital disc or tape. It will supress large clicks and pops, reduce surface noise, even make a mono recording sound like stereo! You have control of bass, treble, soundstage width, and up/down fading. 
It's great all by itself, or use it to enhance the performance of your digital workstation. " 

The IS5021 include the following: 

- 20-bit A/D converters (ADMOD79) 
- High quality tda1547 D/A converter (based on the Philips DAC7) 
- Sample rate converter for interfacing between digital equipment operation at different sample rates. 
- Digital Sound Processing including: 
- Jitter Removal (for cleaning up DAT recordings 
- Compression/Expansion 
- Noise reduction (comprising a low-pass filter with adjustable cut-off) 
- QNI (Quantization Noise Imaging) 
- Slave Mode (for external synchronization) 
- Varispeed (pitch variation can be processed without effecting output sample rates) 
- Scratch Suppression (de-clicking) 
- Stereo Enhancement (stereo effect from mono) 
- Spatial Stereo (widen or narrow the sound stage) 
- Bass, Treble, Balance and Volume Control 
- Digital Level Indication & Control (for monitor of the overall input level) These features offer the professional studio engineers tremendous versatility in the creation of digital recordings, whether from analog or digital source material. Typical applications for the IS5021 include the following: 

Recording Studios/Music Production Facilities: 
The 20-bit A/D converter in combination with the sample rate converter will permit the user to choose a 44.1 or 48kHz sampling frequency for the transfer of older DAT recording. Actually, any input sampling frequency between 15kHz and 50kHz will be accepted. 

Broadcast Professionals/Archivists/Home Studios: 
The IS5021 offer a tremendous variety of easy to use tools to enhance the sound of older recordings (tape and vinyl) from the stereo enhancement capability that permits a monaural recording to be "converted" into stereo (through phase shift), to spatial stereo that widens or narrows the recording, to noise reduction and scratch suppression filters. 

These capabilities, along with the D/A converter and QNI will permit recording professionals to create enhanced digital recordings, as well as transfer back to analog cassette format for substantially enhanced quality for use in portable listening applications. 

Audio Post Production Facilities: 
Recordings made in-the-field with most commonly available portable DAT recorders can now be edited into recordings that offer improved resolution and richness along with substantially reduced jitter distortion. 

Technical specifications 
Digital: 15-50kHz sample rate 
s/pdif: RCA 
Unbalanced: RCA (L/R) 
Digital: 44/1/48kHz switchable 
s/pdif: RCA 
Unbalanced: RCA (L/R) 

Performance (complete Analog Path-analog IN to OUT) 
S/N Ratio: 94dB (A-weighted) 
Dynamic Range: 90dB (1kHz) 
THD + Noise: 86dB (1kHz) 
Channel Separation: 98dB (1kHz) 
S/N Ratio: 94dB (A-weighted) 
Dynamic Range: 92dB (1kHz) 
THD + Noise: 98dB (1kHz) 
Channel Separation: 100dB (1kHz) 

Performance (complete digital path digital IN to digital OUT provides 20 bit performance) 
Voltage: 120V 
Frequency: 60Hz 
Consumption: 20W 

HxWxD: 4.53x8.27x6.57(ins) 
Weight: 3.97lb. 

The op'amps are Motorola MC34072, 
caps are Nichicon MUSE, 
a/d conversion is done by a 20bit ADMOD79 Analog Devices, 
d/a is naturally Philips' DAC7 (TDA1547), 
8-times oversampling digital filter is a NPC SM5841 while the DIR is a Crystal CS8401.
The SRC is a Philips TDA1373 while DSP functions are handled by a PCF5020 and a Motorola 68HC11
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