Sound Devices PIX 250i - Manual (Page 18)

PIX 250i User Guide
v. 2.10 Features and specifications are subject to change. Visit www.sounddevices.com for the latest documentation.
12
In
puts & Outputs
Inputs and Outputs
Video Inputs
The PIX 250i accepts video input signals over HDMI, HD-SDI, and single link 3G-SDI Level A and B.
The PIX 250i does not accept analog video signals. See the Specifications section for a complete list of
supported frame rates.
HDMI
The PIX 250i accepts HDMI version 1.4a video and audio. Supported video resolutions and rates are
listed in the Specifications section. The PIX 250i HDMI input accepts up to 10-bit, 4:4:4 video, up to 8
channels of embedded audio. The PIX 250i also accepts Sony’s proprietary timecode over HDMI. The
digital audio embedded in the HDMI stream (32 kHz – 192 kHz) is always re-sampled to 48 kHz.
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 250i.
SDI
The SDI input on the PIX 250i 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 250i with no auto-negotiation or sample rate conversion.
The PIX 250i 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.
Standard Definition video is always output using HD Mode because 3G does not support Standard
Definition.