Technical Specifications - E-Mu 1212M Owner's Manual

Digital audio systems
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Technical Specifications
Specifications: 1820M System
GENERAL
Sample Rates
Bit Depth
Hardware DSP
Converters & OpAmps
WDM Drivers
AudioDockM Power Use
ANALOG LINE INPUTS
Type
Level (software selectable)
Frequency Response
THD + N
SNR
Dynamic Range
Channel Crosstalk
Common-mode Rejection
Input Impedance
ANALOG LINE OUTPUTS
Type
Level (software selectable)
Frequency Response
THD + N
SNR
Dynamic Range
Stereo Crosstalk
Output Impedance
E-MU 1820M/1820/1212M PCI Digital Audio System
44.1 kHz. 48 kHz, 88.2 kHz, 96 kHz, 176.4 kHz, 192 kHz from
internal crystal. Externally supplied clock from S/PDIF , ADAT
(or word clock with optional Sync Card)
16 or 24-bits
100MIPs custom audio DSP . PCI Bus-Mastering DMA subsystem
reduces CPU usage. Zero-latency direct hardware monitoring
with effects. 1394 Firewire Core - Texas Instruments
ADC - AK5394 (AKM)
DAC - CS4398 (Cirrus Logic)
OpAmp - NJM2068M (JRC)
8 channels — operational at 44.1kHz, 48kHz, 88.2kHz, 96kHz,
176.4kHz & 192kHz
1.25A @ +12V
15W.
Servo-balanced, DC-coupled, low-noise input circuitry
Professional: +4 dBu nominal, 20 dBu maximum (balanced)
Consumer: -10 dBV nominal, 6 dBV maximum (unbalanced)
+/- .05dB, 20 Hz - 20 kHz
-110 dB (.0003%) 1kHz at -1 dBFS
120 dB (A-weighted)
120 dB (A-weighted)
< -115 dB, (1 kHz signal at -1 dBFS)
> 40 dB at 60Hz
10K ohm
Balanced, low-noise, 2-pole low-pass differential filter
Professional: +4dBu nominal, 20dBu (balanced)
Consumer: -10dBV nominal, 6dBV maximum (unbalanced)
+0.0/-0.35 dB, 20 Hz - 20 kHz
-105 dB (.0006%) 1kHz signal at -1dBFS
120 dB (A-weighted)
120 dB (A-weighted)
< -120 dB, 1kHz
560 ohms
7 - Appendix
Technical Specifications
127

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