VBrick Systems VB6000, VB4000, VB5000 manual Vpp Balanced

Figure 11. Balanced Audio Cable

Table 18. Analog Input for MPEG-2, MPEG-4 and WM Encoders

Configuration	Two channel Stereo
Input Connectors	2X	TRS Stereo mini-jacks (L + R)
Input Configuration	Balanced or Unbalanced
	Normal Mode		Alternate Mode (High Headroom)
Input Load Impedance	100k Ohms		100k Ohms
Nominal Input level	1.0	Vpp - Unbalanced	1.0 Vpp - Unbalanced
	0.5	Vpp - Balanced	0.5 Vpp - Balanced
Maximum Input level	4.0	Vpp - Unbalanced	8.0 Vpp - Unbalanced
	2.0 Vpp - Balanced		4.0 Vpp - Balanced
Dynamic Range	94dB		88dB
Encoder Gain Range	+7 to -53dB		+12 to -48dB Note: Depending on the
			input level for certain gain adjustments,
			the signal could be distorted at the input
			to the analog-to-digital converter.
Channel Separation	83dB		83dB
Head Room	12dB		18dB
Noise Floor (Input	-92dB		-92dB
Grounded)

The Audio Out ports are also designed for use with a 1/8" mini plug. Cables are available for both balanced and unbalanced applications from electronics specialty stores (e.g. Radio Shack) and from VBrick. Table 19 and Table 20 outline the specifications of the output audio levels.

Table 19. Analog Audio Output for MPEG-2 Decoders (ENDEC configuration)

Configuration	Two channel Stereo
Output Connectors	2X TRS Stereo mini-jacks (L + R)
Output Configuration	Balanced or Unbalanced
	Normal Mode	Alternate Mode (High Headroom)

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