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GS12070-IBE3

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Proprietary & Confidential
GS12070
Product Brief Rev.0
PDS-060480 June 2014
Gennum Products
GS12070
UHD-SDI Gearbox
www.semtech.com
Key Features
• Converts between 1.5G, 3G, 6G and 12G SDI
Quad Link 3G-SDI ↔ 12Gb/s
Dual Link 6Gb/s ↔ 12Gb/s
Dual Link (2 x 3Gb/s) ST 425-3 ↔ 6Gb/s
Quad Link (4 x 3Gb/s) ST 425-5/-6 ↔ Dual Link
6Gb/s
Quad Link HD-SDI (4 x 1.5Gb/s) ↔ 6Gb/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
Applications
• UHDTV1 and 4K D-Cinema end-equipment: Cameras,
Monitors, Switchers
Description
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
Interfaces
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
interconnect.
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.
4x3G ↔ 12G
4x3G ↔ 2x6G 2x6G ↔ 12G
ST 2081-11
Dual-link 6G
ST 2082-10
Single-link 12G
3840 x 2160
p60
4:2:2 10-bit
ST 425-5
Quad-link 3G
GS12070
Product Brief Rev.0
PDS-060480 June 2014
2 of 3
Proprietary & Confidential
www.semtech.com
GS12070 Block Diagram
Control,
GSPI
Ref clk/
Xtal
Tx
DD0_0
Tx
DD0_1
Tx
DD0_2
GSPI
V H PCLK
Tx
DD0_3
DDI_3
Rx
DDI_2
Rx
DDI_1
Rx
DDI_0
Rx
Descrambler, WA;
TRS, ST 352, LN,
CRC detection;
Raster calculation;
MUX/
DEMUX
ST 352 &
CRC
insertion
Crosspoint
A_VDD A_GND CORE_VDD CORE_GND IO_VDD IO_GND
Descrambler, WA;
TRS, ST 352, LN,
CRC detection;
Raster calculation;
Descrambler, WA;
TRS, ST 352, LN,
CRC detection;
Raster calculation;
Descrambler, WA;
TRS, ST 352, LN,
CRC detection;
Raster calculation;
DDI_0
DDI_1
DDI_2
DDI_3
DD0_0
DD0_1
DD0_2
DD0_3
© Semtech 2014
All rights reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The
information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable
and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication
thereof does not convey nor imply any license under patent or other industrial or intellectual property rights. Semtech assumes
no responsibility or liability whatsoever for any failure or unexpected operation resulting from misuse, neglect improper
installation, repair or improper handling or unusual physical or electrical stress including, but not limited to, exposure to
parameters beyond the specified maximum ratings or operation outside the specified range.
SEMTECH PRODUCTS ARE NOT DESIGNED, INTENDED, AUTHORIZED OR WARRANTED TO BE SUITABLE FOR USE IN
LIFE-SUPPORT APPLICATIONS, DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF SEMTECH PRODUCTS
IN SUCH APPLICATIONS IS UNDERSTOOD TO BE UNDERTAKEN SOLELY AT THE CUSTOMER’S OWN RISK. Should a customer
purchase or use Semtech products for any such unauthorized application, the customer shall indemnify and hold Semtech and
its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs damages and attorney fees
which could arise.
Notice: All referenced brands, product names, service names and trademarks are the property of their respective owners
.
DOCUMENT IDENTIFICATION
PRODUCT BRIEF
The product is in a development phase and specifications are subject to change
without notice. Semtech reserves the right to remove the product at any time.
Listing the product does not constitute an offer for sale.
GS12070
Product Brief Rev.0
PDS-060480 June 2014
3 of 3
3
Proprietary & Confidential
Contact Information
Semtech Corporation
200 Flynn Road, Camarillo, CA 93012
Phone: (805) 498-2111, Fax: (805) 498-3804
www.semtech.com
CAUTION
ELECTROSTATIC SENSITIVE DEVICES
DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A
STATIC-FREE WORKSTATION
P1-P3

GS12070-IBE3

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Manufacturer:
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Description:
Video ICs GS12070 UHD-SDI Gearbox
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