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UHD-SDI Gearbox
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Converts between HD-SDI, 3G-SDI, 6G UHD-SDI, and 12G UHD-SDI using MUX (Multiplex) and DeMUX (Demultiplex) modes,The GS12070 is highly configurable UHD-SDI Gearbox which performs multiplexing and de-multiplexing necessary to facilitate conversions between SMPTE ST 425-3 and/or ST 425-5 (multi-link 3G-SDI) Interface and SMPTE ST 2081-1 (6G UHD-SDI) and/or ST 2082-1 (12G UHD-SDI) Interfaces. The Gearbox also supports conversion between 4 x HD-SDI and 6Gb/s SDI.
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Semtech
Proprietary & Confidential
GS12070
Draft Data Sheet Rev.2
PDS-061012 October 2015
GS12070
UHD-SDI Gearbox
www.semtech.com
Key Features
• Converts between HD-SDI, 3G-SDI, 6G UHD-SDI, and
12G UHD-SDI using MUX (Multiplex) and DeMUX
(Demultiplex) modes
Quad Link 3G-SDI ↔ Single Link 12G UHD-SDI
Dual Link 6G UHD-SDI ↔ Single Link 12G UHD-SDI
Dual Link 3G-SDI (ST 425-3) ↔ Single Link 6G
UHD-SDI
Quad Link 3G-SDI (ST 425-5/6) ↔ Dual Link 6G
UHD-SDI
Quad Link (1.5Gb/s x 4) HD-SDI ↔ Single Link 6Gb/s
Dual Link (1.5Gb/s x 2) HD-SDI ↔ Single Link 3Gb/s
• Bypass modes for all support rates
• Configurable Serial Output reassignment
• Four 100Ω Differential Inputs
Individually selectable input trace equalization for
up to 12dB boost
• Four 100Ω Differential Outputs
Individually selectable output swing and
de-emphasis
• Reference Clock/Crystal Input — 27MHz
Optional support 148.5MHz reference
• GSPI Serial Control and monitoring Interface
• Automatic SMPTE ST 352 packet creation
• Receiver H Sync Outputs per Lane
• 12mm x 12mm 196-Ball BGA (0.8mm pitch)
• Pb-free and RoHS-compliant package
Applications
Next Generation 3D/2D HFR HDTV and 2K D-Cinema,
UHDTV1 and 4K D-Cinema end-equipment: Cameras,
Monitors, Switchers, etc.
Next Generation 3G-SDI, 6G UHD-SDI, and 12G UHD-SDI
infrastructures designed in support of UHDTV1, UHDTV2,
4K D-Cinema and 3D HFR, HDR production image formats,
and 6G UHD-SDI/12G UHD-SDI multiplexing and
de-multiplexing for integration into legacy infrastructure.
Description
The GS12070 is highly configurable UHD-SDI Gearbox
which performs multiplexing and de-multiplexing
necessary to facilitate conversions between SMPTE ST
425-3 and/or ST 425-5 (multi-link 3G-SDI) Interface and
SMPTE ST 2081-1 (6G UHD-SDI) and/or ST 2082-1 (12G
UHD-SDI) Interfaces. The Gearbox also supports conversion
between 4 x HD-SDI and 6Gb/s SDI.
Example of Multiplexing ST 525-5 into ST 2081-1 (6Gb/s) and
ST 2082-1 (12Gb/s)
For the supported SMPTE conversions, the SMPTE ST 352
payload identification will be automatically detected and
replaced based on the user selected conversion mode. This
can be bypassed for proprietary multiplexing and
demultiplexing links.
The device incorporates the ability to reorder the output
serial stream and duplicate outputs to unused output
channels or route any input channel.
The GS12070 features four high-speed differential signal
inputs and four high-speed differential serial outputs of up
to 11.88Gb/s. The high-speed inputs and outputs include
programmable trace equalization and de-emphasis drivers
to compensate for high-frequency losses associated with
board-level interconnectivity.
The GS12070 has the ability to automatically compensate
for up to 400ns of skew mismatch on a QL 6Gb/s or DL
12Gb/s and 800ns of skew mismatch on a DL 6Gb/s and QL
3Gb/s. This aids in any lane-to-lane variance introduced by
cable mismatch or upstream routing and distribution
equipment.
In DeMUX mode to quad 3G the outputs can be manually
delayed for up to 6.8μs in 6.7ns increments.
3840 x 2160
p60
4:2:2 10-bit
ST 425-5
Quad-link 3G
ST 2081-11
Dual-link 6G
ST 2082-10
Single-link 12G
4 x 3G ↔ 12G
4 x 3G ↔ 2 x 6G
2 x 6G ↔ 12G
GS12070
Draft Data Sheet Rev.2
PDS-061012 October 2015
2 of 45
Semtech
Proprietary & Confidential
www.semtech.com
GS12070 Block Diagram
Control,
GSPI
XTAL_IN
XTAL_OUT
Tx
DDO0
Tx
DDO1
Tx
DDO2
CS
Tx
DDO3
DDI3
Rx
DDI2
Rx
DDI1
Rx
DDI0
Rx
MUX/
DEMUX
ST 352 &
CRC
insertion
Channel
Reassignment
DDI0
DDI1
DDI2
DDI3
DDO0
DDO1
DDO2
DDO3
Input Video
Detection and Status
Input Video
Detection and Status
Input Video
Detection and Status
Input Video
Detection and Status
TX_PCLK[1:0]
ISP[3:0]
REFCLK_SEL[1:0]
RESET
BYPASS
JTAG
Controller
SD_BYPASS[3:0]
SCLK
SDIN
SDOUT
TMS
TRST
TDO
TCK
MUX/DEMUX
MODE_SEL[2:0]
PID_MODE[1:0]
REXT_TX
REXT_RX
TIM_OUT[3:0]
STAT[15:0]
REF_IN/REF_OUT
RX_CLK_[3:0]
VCC_IO VCC_A_1V8 VCC_A_1V1 VCC_CORE VSS
LINK_ASGMT
RSVD1
Trendtek for Konvision
GS12070
Draft Data Sheet Rev.2
PDS-061012 October 2015
3 of 45
Semtech
Proprietary & Confidential
www.semtech.com
Revision History
Contents
1. Pin Out.................................................................................................................................................................5
1.1 Pin Assignment ...................................................................................................................................5
1.2 Pin Descriptions ..................................................................................................................................6
2. Electrical Characteristics................................................................................................................................9
2.1 Absolute Maximum Ratings ...........................................................................................................9
2.2 DC Electrical Characteristics ...........................................................................................................9
2.3 AC Electrical Characteristics ......................................................................................................... 11
3. Input/Output Circuits.................................................................................................................................. 13
4. Detailed Description.................................................................................................................................... 14
4.1 Power Supply Considerations ..................................................................................................... 14
4.1.1 Power Connections ............................................................................................................ 14
4.1.2 Power On Sequence........................................................................................................... 14
4.1.3 Device Initialization ............................................................................................................ 15
4.2 Serial Data Inputs ............................................................................................................................. 15
4.2.1 Input Signal Interface Levels ........................................................................................... 16
4.2.2 Input Trace Equalization................................................................................................... 16
4.2.3 Input Control......................................................................................................................... 17
4.3 Serial Data Outputs ......................................................................................................................... 17
4.3.1 Output Signal Interface Levels ....................................................................................... 17
4.3.2 Adjustable Output Swing................................................................................................. 17
4.3.3 Output Pre-emphasis/De-emphasis............................................................................. 18
4.3.4 Output Control..................................................................................................................... 18
4.4 Reference Clock ................................................................................................................................ 18
4.5 Digital I/O ........................................................................................................................................... 18
4.6 Modes of Operation ........................................................................................................................ 19
4.6.1 Mode Selection .................................................................................................................... 19
4.6.2 Input Serial Receiver and Input Processing Operation.......................................... 19
4.6.3 Output Serial Transmitter Operation ........................................................................... 20
4.6.4 Channel Assignment.......................................................................................................... 20
4.7 Multiplex Mode ................................................................................................................................ 21
4.7.1 Conversion Selection ......................................................................................................... 21
4.7.2 PID Handling ......................................................................................................................... 22
4.7.3 MUX Mode Supported SMPTE Mapping Standard Reference ............................ 23
Version ECO Date Changes and/or Modifications
2 028141 October 2015
Updated pin names in Figure 1-1,
Table 1-1, Table 4-4, and Table 4-5.
1 026325 June 2015 Minor correction on Page 1.
0 025710 June 2015 New document.
Trendtek for Konvision
GS12070
Draft Data Sheet Rev.2
PDS-061012 October 2015
4 of 45
Semtech
Proprietary & Confidential
www.semtech.com
4.7.4 Manual (Non-SMPTE) Mode............................................................................................. 23
4.8 Demultiplex Mode .......................................................................................................................... 24
4.8.1 Conversion Selection ......................................................................................................... 24
4.8.2 PID Handling ......................................................................................................................... 25
4.8.3 DeMUX Mode Supported SMPTE Standards............................................................. 26
4.8.4 Manual (Non-SMPTE) Mode............................................................................................. 26
4.9 Bypass Mode ..................................................................................................................................... 26
4.9.1 Input Stream Data Rate Detection................................................................................ 26
4.9.2 SD Bypass Mode................................................................................................................... 26
4.10 Lane Ordering ................................................................................................................................ 27
4.10.1 Physical Connection ........................................................................................................ 28
4.10.2 SMPTE ST 352 PID ............................................................................................................. 28
4.10.3 Manual Assignment ......................................................................................................... 28
4.11 GSPI Host Interface ....................................................................................................................... 29
4.11.1 CS
Pin..................................................................................................................................... 29
4.11.2 SDIN Pin................................................................................................................................ 29
4.11.3 SDOUT Pin ........................................................................................................................... 29
4.11.4 SCLK Pin................................................................................................................................ 31
4.11.5 Command Word Description........................................................................................ 31
4.11.6 GSPI Transaction Timing ................................................................................................ 34
4.11.7 Single Read/Write Access............................................................................................... 35
4.11.8 Auto-increment Read/Write Access........................................................................... 36
4.11.9 Setting a Device Unit Address...................................................................................... 38
4.11.10 Default GSPI Operation ................................................................................................ 38
5. Host Interface Register Map...................................................................................................................... 40
6. Application Information............................................................................................................................. 41
6.1 Typical Application Circuit ........................................................................................................... 41
6.2 Layout Considerations ................................................................................................................... 41
7. Package & Ordering Information ............................................................................................................ 42
7.1 Package Dimensions ...................................................................................................................... 42
7.2 Recommended PCB Footprint .................................................................................................... 43
7.3 Packaging Data ................................................................................................................................ 43
7.4 Solder Reflow Profile ...................................................................................................................... 44
7.5 Marking Diagram ............................................................................................................................. 44
7.6 Ordering Information ..................................................................................................................... 44
Trendtek for Konvision
GS12070
Draft Data Sheet Rev.2
PDS-061012 October 2015
5 of 45
Semtech
Proprietary & Confidential
www.semtech.com
1. Pin Out
1.1 Pin Assignment
Figure 1-1: Pin Out
VSS
DDO1
DDO0
STAT0
STAT1
STAT2 STAT3
DDO2
STAT4 STAT5
RX_CLK_0
VCC_IO
RSVD RSVD RSVD STAT6 STAT7
RX_CLK_1
DDO3 VCC_IO RSVD RSVD VCC_IO STAT8
STAT9
RX_CLK_2
VCC_A_1V8
VCC_A_1V1
VSS
VSS VSS VSS VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSSVSSVSSVSS
VSS
VSSVSSVSS
VSS
VSS
VSSVSS
VSS
VSS
VSS
VSS
VSS
VSS
RSVD
RSVD
NC
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
RSVD
NCNC
NCNC
VSS
VSS
DDI3
DDI2
DDI1 DDI0
VCC_IO
REXT_RX
TDI
TMS
TDO
TRST
VCC_A_1V8 VCC_A_1V1
VCC_A_1V8
VCC_A_1V8
VCC_A_1V1
VCC_A_1V1
VSS
VSS
REXT_TX
NC
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_CORE
VCC_IO
TCK
REFCLK_
SEL0
ISP0 ISP1 ISP2
SDIN
ISP3
SDOUT
RSVDRSVD
RSVD
VSS
SCLK
TIM_OUT3
TIM_OUT2
STAT14
STAT15
TIM_OUT1
STAT12
STAT13
TIM_OUT0
STAT10
STAT11
RX_CLK_3
RSVD1
LINK_
ASGMT
RSVD
RSVD
VCC_CORE
VCC_IO
VCC_IO
VCC_IO
RSVD RSVD
RSVD
REFCLK_
SEL1
TX_PCLK0 TX_PCLK1
RSVD
REF_IN
PID_
MODE1
PID_
MODE0
SD_
BYPASS0
SD_
BYPASS1
SD_
BYPASS2
SD_
BYPASS3
MODE_
SEL1
MODE_
SEL2
BYPASS
MODE_
SEL0
XTAL_
IN
XTAL_
OUT
A
B
C
D
E
F
G
H
J
K
L
M
N
RSVD
RSVD
DDO1
DDO0
MUX/
DEMUX
DDO2
DDO3
DDI3
DDI2
DDI1
Legend:
CS
P
VSS
VSS
VSSVSS
VSS VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
DDI0
RESET
1234 567891011121314
VSS
RESET
Low-speed digital control and
status (not static) — Output
High-speed dierential inputs
High-speed dierential outputs
Reference clock
Low-speed digital control and
status (static) — Input
VCC
1.8V supply
1.1V supply
I/O supply
GND
RSVD
RSVD
RSVD
REF_OUT
Low-speed digital control and
status (static) — Output
Trendtek for Konvision
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