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GS12070 Fiches technique(PDF) 1 Page - Semtech Corporation

No de pièce GS12070
Description  UHD-SDI Gearbox
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Fabricant  SEMTECH [Semtech Corporation]
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GS12070 Fiches technique(HTML) 1 Page - Semtech Corporation

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Proprietary & Confidential
Product Brief
June 2014
Gennum Products
UHD-SDI Gearbox
Key Features
Converts between 1.5G, 3G, 6G and 12G SDI
Quad Link 3G-SDI
Dual Link 6Gb/s
Dual Link (2 x 3Gb/s) ST 425-3
Quad Link (4 x 3Gb/s) ST 425-5/-6
Dual Link
Quad Link HD-SDI (4 x 1.5Gb/s)
Serial Bypass modes for all support rates
4 Serial Differential Inputs
100Ω differential inputs support DC-coupling to
1.2V CML Logic
Input trace equalization for up to 6" FR4 at 12Gb/s
4 Serial Differential Outputs
100Ω differential outputs support DC-coupling to
1.2V CML Logic
Output de-emphasis to compensate for up to 6"
FR4 at 12Gb/s
Reference Clock/Crystal Input —148.5MHz/27MHz
GSPI serial control and monitoring interface
Selectable 1.8V and 2.5V digital control I/O
Automatic SMPTE ST 352 packet creation
14mm x 14mm 256-Ball BGA (0.8mm pitch)
Pb-free and RoHS-compliant package
UHDTV1 and 4K D-Cinema end-equipment: Cameras,
Monitors, Switchers
The GS12070 is an UHD-SDI Gearbox which performs the
multiplexing and de-multiplexing necessary to facilitate
conversions between the ST 425-3 and ST 425-5 multi-link
3Gb/s UHD-SDI Interface and the SMPTE ST 2081 (6Gb/s)
and ST 2082 (12Gb/s) Interfaces. A conversion between
4 x 1.5Gb/s and 6Gb/s is also supported.
GS12070 Supported Conversions of SMPTE Standard
The GS12070 features four high-speed differential signal
inputs and four high-speed differential serial outputs
which can be interfaced to 1.2V CML I/O. The high-speed
inputs and outputs include programmable trace
equalization and de-emphasis drivers to compensate for
high-frequency losses associated with board-level
The high-speed serial inputs and outputs support 270Mb/s,
1.5G, 3G, 6G and 12G nominal data rates. The supported
conversions are performed by manually selecting the input
and output rates. Unused output ports at 6G and 12G may
be configured to output a copy of the primary converted
output. A serial bypass mode is also available as a manually
selectable option.
↔ 12G
↔ 2x6G
↔ 12G
ST 2081-11
Dual-link 6G
ST 2082-10
Single-link 12G
3840 x 2160
4:2:2 10-bit
ST 425-5
Quad-link 3G

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