The DC8-224DAC provides eight channel of digital to analog conversion in one easy to use 1U 19" chassis. Ideal for multi channel play back for digital recorders and for use with 5.1 and 7.1 surround sound. Each of the four AES/EBU digital input channels provides speed and error indication. Dual phase locked loops are used to insure low jitter clock recovery for clean, low distortion operation. Eight analog outputs provide up to +24dBu output levels at 0dBFS digital inputs with adjustable output levels for operation between +10dBu and +24dBu. A proprietary analog output drive circuit allows balanced or unbalanced operation without signal level shift.

TROISI DC8-224DAC Converter Specifications (per channel)

Dynamic Range: 115dB rms Re: +24dBu unweighted

Frequency response: +/- 0.2dB 10Hz to 20KHz

THD + Noise: less than -100dB typical 20Hz to 20KHz

Inter-channel Phase deviation: <0.25 degrees, 10Hz to 20KHz

Inter-channel crosstalk: <-110dB 20Hz to 20KHz

Output Range @ 0dBFS: Differential balanced, +10dBu to +24dBu

AES Outputs:Professional AES/EBU transformer isolated, 110 Ohm XLR

Sampling Rates:Each channel will lock to AES input sample rates from 24kHz to 100kHz

Word Length: up to 24 bits

Dimensions: 1.75(h) x 19 (w) x 9 (d)

Power: 120VAC 60Hz

The TROISI Octal A/D will take you further into the 21st century with the purest specs around. Eight channels in a 1U package with features that will vastly improve the sound of your digital multitrack projects:

• Highest Quality Analog Circuitry.
  Very low offset analog circuitry eliminates blocking capacitors from the signal path with THD below .0005% (the limit of our test instruments) and an analog dynamic range well beyond 130dB. Each channel provide a gain setting trim pot for 14dB of gain range to support a wide variety of input levels with no sonic degradation, even in unbalanced input modes.
• Pure Digital Clocking and Sampling.
  Because the four stereo A/D converters are driven from one extremely low jitter internal clock (44.1kHz, 48.0kHz, 88.2kHz or 96kHz), the highest quality sampling is ensured. A unique low jitter phase locked loop ensures easy synchronization to external word clocks from 28kHz to 100kHz. Each channel includes a mid level LED indicator (-30dBFS to 0dBFS) and a peak L.E.D indicator to let you know if you have any overs.
• Digital Features.
  Four standard AES/EBU stereo digital outputs are provided for easy interface. Each digital output pair can be adjusted for 16, 20 and 24bit quantization. In addition each pair of digital outputs can be independantly selected for standard resolution (44.1/48kHz) or high resolution (88.2/96kHz) making these converters ideal for working on 5.1 mode suround projects. Custom packages with SPDIF (coaxial or optical) and DA-88 50 pin interfaces are also available.

Whether your application is digital multitracking, broadcast, video post-production, 5.1 or 7.1 surround sound, or configuring a custom system, treat your ears to the sound that you deserve and expect!

DC8-224ADC OCTAL 8-Channel A/D Converter Performance Specifications

Dimensions: 1.75(H) x 19 (w) x 9 (d)

FRONT PANEL CONTROLS
Input level trim: nominal +4dB or -10dB
Digital level Indicator: indicates -30dBFS to 0dBFS audio for each channel
Digital Peak Indicator: measures full scale (0) audio for each channel

Channel 1 & 2 quantization: 16, 20 or 24bit quantization selection
Channel 3 & 4 quantization: 16, 20 or 24bit quantization selection
Channel 1 - 4 Sample Rate divide: selects 44.1/48kHz or 88.2/96kHz

Channel 5 & 6 quantization: 16, 20 or 24bit quantization selection
Channel 7 & 8 quantization: 16, 20 or 24bit quantization selection
Channel 5 - 8 Sample Rate divide: selects 44.1/48kHz or 88.2/96kHz
Sampling Rate Select: Internal 88.2, 96.0 or External word clock

REAR PANEL
Power: 120VAC 60Hz

Digital Output: 4x AES/EBU INTERFACE (XLR)
110 Ohm Transformer isolated/5 Volt peak at data rates from 1.92MHz to 6.4MHz
External Work Clock Input: BNC connector, TTL compatible, 1000 Ohm termination.
Can lock between 28-100 kHz

DC8-224ADC Performance
Freq. response: +/- 0.2dB 10Hz to 24kHz
S/N ratio: >115dB unweighted
THD: <.0005% 20Hz - 20KHz
Max input level: +24dBu (XLR)
Min input level: (FS) +10dBu
Input impedance: (balanced) >5k Ohm
CMRR: >80dB 20-1KHz, >60dB 1K-20kHz
crosstalk: <110dB 20-20kHz

The Troisi DC224DAC Digital to Analog converters provide state of the art monitoring for AES/EBU, SPDIF or TOSLINK digital inputs. 24 bit digital digital inputs with up to 96KHz sampling rates. Four digital inputs with a dual Phase Locked Loop clock recovery circuit provide exceptional performance. Analog outputs are balanced, differential and capable of driving output levels to +24dBu. Input source, sampling rate and data transmission errors are displayed on the front panel. Output level is trimmer controlled over a 14dB range. An optional rack mount kit is available for mounting one or two DC224DACs or a combination of ADCs and DACs.

TROISI DC224DAC Converter Features

DC224DAC: Digital inputs: 2-AES, 1-S/PDIF, 1-Optical, Sample rates: 24kHz to 96kHz

TROISI DC224DAC Converter Specifications

Dynamic Range: 115dB rms Re: +24dBu unweighted

Frequency response: +/- 0.1dB 10Hz to 20KHz

THD + Noise: less than -100dB typical 20Hz to 20KHz

Inter-channel Phase deviation: <0.25 degrees, 20Hz to 20KHz

Inter-channel crosstalk: <-110dB 20Hz to 20KHz

Output Range @ 0dBFS: Differential balanced, +8dBu to +24dBu

AES Input (2):Professional AES/EBU transformer isolated, 110 Ohm XLR

SPDIF Input: Consumer SPDIF transformer isolated, 75 Ohm RCA co-axial

OPTICAL Input: TOSlink Optical consumer

Word Length: up to 24 bits

Dimensions: 1.60(h) x 7.25 (w) x 9 (d)

Power: External TROISI Power Pac 120VAC 60Hz

The DC224ADC converter provide all the functions you require in an outboard converter: Analog and Digital inputs, Shaped dither for 24, 20 and 16 bit quantization, Simultaineous AES and S/PDIF outputs and three clock sources - internal, external word clock and external AES. The DC224ADC provides both analog and digital inputs and is is also available with a 19" rack mounting kit.

TROISI DC224ADC 2-Channel A/D Converter Specifications

Dimensions: 1.60(H) x 7.25 (w) x 9 (d)

FRONT PANEL CONTROLS

Input level select: Variable for +10dBu to +24dBu
Digital Level Indicator: 24dB level indication for each channel
Quantization - S/PDIF out: 24bit, 20bit, 16bit

Quantization - AES out: 24bit, 20bit, 16bit

Sampling Rate Select: Internal 44.1, 48.0 or External

External Sync Select: Word Clock, AES/SPDIF, AES Digital In

REAR PANEL

Power: External TROISI Power Pac 120VAC 60Hz

Digital Output1: AES/EBU INTERFACE (XLR)
Transformer isolated / 110 Ohm / 5 Volt peak at data rates from 1.92MHz to 3.2MHz
Digital Output2: SPDIF (RCA) (AES/EBU on DC224-96ADC)
Transformer isolated/ 75 Ohm /.5 Volt pp at data rates from 1.92MHz to 3.2MHz
Digital Output3: SPDIF Optical (toslink)
External Work Clock Input: BNC connector, TTL compatible, 1000 Ohm termination.
Can lock between 28-50 kHz for Word clock input, 110 ohm termination for AES inputs

DC224ADC Converter Performance
freq. response: +/- 0.2dB 20Hz to 20KHz
dynamic range: >115dBFS unweighted
THD: < .0005% @ full scale 20Hz to 20KHz
crosstalk: <115dB 20-20kHz