Sound Devices PIX 270i - Manual (Page 19)

PIX 270i User Guide and Technical Information
13
In
puts & Outputs
Inputs and Outputs
Video Inputs
The PIX 270i accepts video input signals over HDMI, HD-SDI, and single link 3G-SDI Level A and B.
The PIX 270i does not accept analog video signals. See the Specifications section for a complete list of
supported frame rates.
HDMI
The PIX 270i accepts HDMI version 1.4a video and audio. Supported video resolutions and rates
are listed in the Specifications section. The PIX 270i HDMI input accepts up to 10-bit, 4:4:4 video,
up to 8 channels of embedded audio. The PIX 270i also accepts Sony’s proprietary timecode over
HDMI. In Video Mode, the digital audio embedded in the HDMI stream (32 kHz – 192 kHz) is
always re-sampled to 48 kHz. In Audio Mode it is re-sampled to the sample rate determined by the
[Timecode/Sync - Sync Ref - Audio Only].
720p30/29.97, 720p25, and 720p24/23.976 are not supported on the HDMI input or the HDMI output.
HDCP copy protection prevents direct digital-to-digital copying of copyrighted material. Protected
DVDs, Blu-Rays, and streaming content with HDCP encryption is not valid content and will be ignored
by the PIX 270i.
SDI
The SDI input on the PIX 270i accepts video with embedded audio (up to 16 channels) and embed-
ded SMPTE timecode. This connection accepts digital video up to 12-bit, with up to 4:4:4 color sam-
pling. Unlike the HDMI interface, which auto-negotiates rates between devices, what comes out of a
camera’s SDI output is received by the PIX 270i with no auto-negotiation or sample rate conversion.
The PIX 270i supports 3G-SDI single link, but not dual-link HD-SDI.
Timecode over SDI is not available when recording in standard definition
Video Outputs
Both HDMI and SDI outputs are active simultaneously. This allows for conversion from SDI to
HDMI and HDMI to SDI.
The output video signal source is the signal present at the currently selected video input (Setup
Menu option [Video - Video Input]), except during video playback. The resolution and frame rate of
the output stream is determined by the Setup Menu option [Video - File Resolution/Rate] setting,
except during video playback. The SDI Output is capable of sending HD (4:2:2 10-bit) or 3G (4:4:4
12-bit), this is set in [Video - SDI Output Type].Video playback signal is sent to the HDMI and SDI
Outputs.