hiFace Evo USB to SPDIF Interface

USB-to-S/PDIF interface

About the Word Clock InputThe Evo clock input is for a master clock that needs to be either 22.5792MHz or 24.576MHz. In addition, the source must be able to produce 3.3V on a 75 Ohm load. It's all indicated in the user manual that every user should download. Unfortunately, the word clock output on the Esoteric can't be used with the Evo. However, M2Tech makes a compatible Evo Word Clock at a reasonable price.

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Based on the same technology as the hiFace, but with many improvements. The Evo is housed in a nice brushed aluminum chassis (105 x 100 x 46mm), with a B-type female USB connector.

Power Supply Options

The Evo comes to Stock with a 9 volt linear wall-wart type power supply to US customers. Upgrading the power supply will yield significant improvements in the performance of the Evo. We highly recommend the Evo Battery supply

Evo features:

• input for external supply (7 to 11VDC)
• input for external Master Clock (BNC with transformer)
• 2 x S/PDIF outputs (RCA and 75 Ohms BNC)
• AES/EBU output with XLR connector and settable format (consumer and professional) by an internal jumper
• Toslink output
• ST output
• direct I2S output with 3.3V interface. All outputs (except I2S) are transformer-decoupled to avoid ground noise and EMI interference. Three leds indicate power, data stream in input and external clock presence.

Evo Specs:

Size:

• 105x46x104mm (w x h x d, case)
• 105x50x142mm (w x h x d, total)
• 120x60x165mm (w x h x d, box) (to be confirmed)

Weight: 1.0 pounds

Sampling frequencies (kHz): 44.1, 48, 88.2, 96, 176.4, 192

Resolution (bits): 16 to 32

Inputs: USB 2.0, supply, master clock

Outputs: S/PDIF x2 (RCA & BNC), AES/EBU (XLR), optical Toslink, optical ST, I2S (RJ-45).

Supply voltage: 7-11VDC

Supply current: 60mA (I2S not driven) (to be confirmed)

Master clock input voltage: 3.3V

I2S output voltage: LVCMOS (3.3V) with 25mA current capability on each line