The ADC6820N/ADC6820N4 are an audio A to D converter with audio delay. Both two modules can provide two/four balanced audio inputs, two unbalanced and two balanced AES audio outputs. They can also provide one balanced or unbalanced DARS input, one Genlock input. The user can select either DARS or Genlock as synchronized signal. The ADC6820/ADC6820N4 can generate fixed-rate Tone signal and provide flexibility in audio sampling and delay setting.
Balanced Analog Audio Input
Number of inputs ADC6820N: 1 ADC6820N4: 2
Connector Audio connector
Input coupling AC coupled
Impedance >50K
Maximum input level +16dB to +28dB in 2 dB steps
Digital Audio Output
Number of outputs 2 AES 75 ohm BNC and 2 AES 110 ohm balanced
Standard AES 3: 1992, AES3id: 1995 and SMPTE 276M
Impedance 75 ohm /110 ohm
Channel status Professional
110 Ohm Output
Impedance 110 ohm+/-20%
Level 2 V to 7 V peak-to-peak
Common mode >30 dB below output signal
Rise and fall time 5 to 30 ns
Jitter 0.02 UI
75 Ohm Output
Return loss >30 dB up to 6 MHz
Output level 1.0 V +/- 0.1 V peak-to-peak
DC offset <10 mV
Rise and fall time 30 to 44 ns
Jitter 0.02 UI
External Reference Input
Connector type BNC (unbalanced)
Audio connector (balanced)
Impedance 75 ohm (unbalanced)
110 ohm (balanced)
Return loss >30 dB up to 6 MHz (unbalanced)
AES reference sampling rate 32 kHz, 48 kHz, 96 kHz
Video reference 525,625 Black Burst
Performance
Quantization 16 bits, 20 bits, 24 bits
Sampling rate 32 kHz, 48 kHz, 96kHz
Frequency response <+/-0.05 dB @-10 dBFS, 20Hz to 20 kHz
Linearity <+/-0.3 dB up to -100 dBFS
Signal to noise @ O dBFS 100 dB (no filter)
103 dB (A-weight)
THD+N <0.003% @ (20 Hz to 20 kHz), -1 dBFS = +23 dBu
IMD >90 dB (CCIF two tone test @ 0 dBFS = +18 dBu,
+24 dBu, +28 dBu, High-Z load
Crosstalk >90 dB, 20 Hz to 20 kHz
Power Consumption
Power 2.3W
Positive rail 350 mA
Negative rail 6 mA
Balanced Analog Audio Input
Number of inputs ADC6820N: 1 ADC6820N4: 2
Connector Audio connector
Input coupling AC coupled
Impedance >50K
Maximum input level +16dB to +28dB in 2 dB steps
Digital Audio Output
Number of outputs 2 AES 75 ohm BNC and 2 AES 110 ohm balanced
Standard AES 3: 1992, AES3id: 1995 and SMPTE 276M
Impedance 75 ohm /110 ohm
Channel status Professional
110 Ohm Output
Impedance 110 ohm+/-20%
Level 2 V to 7 V peak-to-peak
Common mode >30 dB below output signal
Rise and fall time 5 to 30 ns
Jitter 0.02 UI
75 Ohm Output
Return loss >30 dB up to 6 MHz
Output level 1.0 V +/- 0.1 V peak-to-peak
DC offset <10 mV
Rise and fall time 30 to 44 ns
Jitter 0.02 UI
External Reference Input
Connector type BNC (unbalanced)
Audio connector (balanced)
Impedance 75 ohm (unbalanced)
110 ohm (balanced)
Return loss >30 dB up to 6 MHz (unbalanced)
AES reference sampling rate 32 kHz, 48 kHz, 96 kHz
Video reference 525,625 Black Burst
Performance
Quantization 16 bits, 20 bits, 24 bits
Sampling rate 32 kHz, 48 kHz, 96kHz
Frequency response <+/-0.05 dB @-10 dBFS, 20Hz to 20 kHz
Linearity <+/-0.3 dB up to -100 dBFS
Signal to noise @ O dBFS 100 dB (no filter)
103 dB (A-weight)
THD+N <0.003% @ (20 Hz to 20 kHz), -1 dBFS = +23 dBu
IMD >90 dB (CCIF two tone test @ 0 dBFS = +18 dBu,
+24 dBu, +28 dBu, High-Z load
Crosstalk >90 dB, 20 Hz to 20 kHz
Power Consumption
Power 2.3W
Positive rail 350 mA
Negative rail 6 mA