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Specifications – Grass Valley 8921DAC User Manual

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8921DAC Instruction Manual

41

Specifications

Specifications

Table 6. 8921DAC Specifications

Parameter

Value

Digital Inputs

Balanced inputs

Audio input signal type

AES3-1997

Number of inputs

2 balanced

Input impedance

110 Ω ± 10%

Connector type

3-pin terminal blocks J9 (AES 1 A/B In) and J10 (AES 2 C/D In)

Common mode range

± 10V

Differential voltage range

200 mV to 10 V p-p

Sampling rates supported

32 kHz to 96 kHz

Input return loss

> 20 dB (100 kHz to 10 MHz)

Unbalanced inputs

Audio input signal type

AES3id-1995

Number of inputs

2 unbalanced

Input impedance

75 Ω ± 10%

Connector type

2 BNCs J11 (AES 1 A/B In) and J12 (AES 2 C/D In)

Differential voltage range

200 mV to 1.2 V p-p

Sampling rates supported

32 kHz to 96 kHz

Input return loss

> 20 dB (100 kHz to 10 MHz)

Digital Audio Outputs

Digital audio output signal

AES3-1992

Number of outputs

4

Output impedance

110 Ω ± 20%

Connector type

3-pin terminal block (AES Out 1 – J5, AES Out 2 – J7, AES Out 3 – J6,
AES Out 4 – J8)

Output rise/fall time

5 ns to 30 ns with 110 Ω load

Differential voltage range

3.4 V p-p ± 0.2 V @ 110 Ω

Sampling rates supported

32 kHz to 96 kHz (AES input sample rate)

Output return loss

> 15 dB (100 kHz to 6 MHz)

Analog Audio Output Signal

Number of outputs

4 channels, 1 output each channel

Output impedance

≤ 5Ω single-ended and ≤ 10 Ω differential

Output level (0 dBFS input)

0 dBu to + 24 dBu maximum

Output impedance

≤ 10 Ω single-ended and ≤ 20 Ω differential

Connector type

3-pin terminal block (Audio Out 1 – J1, Audio Out 2 – J2, Audio Out 3 – J3,
Audio Out 4 – J4)

Maximum differential DC on output

< ± 50 mV

Output to output isolation

> 95 dB

Maximum drive capability THD+N < 0.012%

+ 24 dBu into 10 k Ω load
+ 18 dbU into 600 Ω load