GS1660A Datasheet, PDF (1/83 Pages) Gennum Corporation – Ancillary data extraction

GS1660A
HD/SD SDI Receiver Complete with SMPTE Video Processing
Key Features
• Operation at 1.485Gb/s, 1.485/1.001Gb/s and 270Mb/s
• Supports SMPTE 292, SMPTE 259M-C and DVB-ASI
• Integrated Reclocker with low phase noise integrated
VCO
• Serial digital reclocked, or non-reclocked output
• Ancillary data extraction
• Parallel data bus selectable as either 20-bit or 10-bit
• Comprehensive error detection and correction
features
• Output H, V, F or CEA 861 Timing Signals
• 1.2V digital core power supply, 1.2V and 3.3V analog
power supplies, and selectable 1.8V or 3.3V I/O power
supply
• GSPI Host Interface
• Wide temperature range of -40ºC to +85ºC
• Low power operation (typically 280mW)
• Small 11mm x 11mm 100-ball BGA package
• Pb-free and RoHS compliant
Applications
HD-SDI
Link A
EQ
(GS1574A
or GS2984)
HD-SDI
Link B
EQ
(GS1574A
or GS2984)
Application: Dual Link (HD-SDI)
to Single Link (3G-SDI) Converter
HD-SDI
Deserializer
GS1660A
10-bit
HV F/PCLK
FIFO
W
R
HD-SDI
Deserializer
GS1660A
10-bit
HV F/PCLK
FIFO
W
R
10-bit
HV F/PCLK
10-bit
GS2962
3G-SDI
GS4910
HVF
X TAL
Description
The GS1660A is a multi-rate SDI Receiver which includes
complete SMPTE processing, as per 292M and SMPTE
259M-C. The SMPTE processing features can be bypassed to
support signals with other coding schemes.
The device features an integrated Reclocker with an
internal VCO and a wide Input Jitter Tolerance (IJT) of
0.7UI.
A serial digital loop through output is provided, which can
be configured to output either reclocked or non-reclocked
serial digital data. The Serial Digital Output can be
connected to an external Cable Driver.
The device operates in one of four basic modes: SMPTE
mode, DVB-ASI mode, Data-Through mode or Standby
mode.
In SMPTE mode, the GS1660A performs SMPTE
de-scrambling and NRZI to NRZ decoding and word
alignment. Line-based CRC errors, line number errors, TRS
errors and ancillary data check sum errors can all be
detected. The GS1660A also provides ancillary data
extraction. The entire ancillary data packet is extracted,
and written to host-accessible registers. Other processing
functions include H:V:F timing extraction, Luma and
Chroma ancillary data indication, video standard
detection, and SMPTE 352M packet detection and
decoding. All of the processing features are optional and
may be enabled or disabled via the Host Interface.
In DVB-ASI mode, 8b/10b decoding is applied to the
received data stream.
In Data-Through mode, all forms of SMPTE and DVB-ASI
decoding are disabled, and the device can be used as a
simple serial to parallel converter.
The device can also be placed in a lower power Standby
mode. In this mode, no signal processing is carried out and
the parallel output is held static.
Parallel data outputs are provided in 20-bit or 10-bit
multiplexed format for HD and SD video rates. The
associated Parallel Clock input signal operates at 148.5 or
148.5/1.001MHz (HD 10-bit multiplexed modes), 74.25 or
74.25/1.001MHz (for HD 20-bit mode), 27MHz (for SD
10-bit mode) and 13.5MHz (for SD 20-bit mode).
GS1660A HD/SD SDI Receiver Complete with SMPTE
Video Processing
Data Sheet
54386 - 3
September 2012
www.semtech.com
1 of 83