GS2962 Datasheet, PDF (57/82 Pages) Gennum Corporation – Integrated Narrow-Bandwidth PLL

Table 4-7: IOPROC Register Bits
I/O Processing Feature
TRS insertion
Y and C line number insertion
Y and C line based CRC insertion
Ancillary data checksum correction
EDH CRC error calculation and insertion
Illegal word re-mapping
SMPTE 352M packet insertion
SMPTE 372M conversion
Ancillary data insertion
IOPROC Register Bit
TRS_INS (000h Bit 0)
LNUM_INS (000h Bit 1)
CRC_INS (000h Bit 2)
ANC_CSUM_INS (000h Bit 3)
EDH_ CRC_INS (000h Bit 4)
ILLEGAL_WORD_REMAP (000h Bit 5)
SMPTE_352M_INS (000h Bit 6)
CONV_372 (000h Bit 9)
ANC_INS (000h Bit 11)
4.9 Serial Digital Output
The GS2962 has a single, low-impedance current mode differential output driver,
capable of driving at least 800mV into a 75Ω single-ended load.
The output signal amplitude, or swing, will be user-configurable using an external
resistor on the RSET pin.
The serial digital output data rate supports SMPTE 424M, SMPTE 292 and SMPTE
259M-C operation. This is summarized in Table 4-7:
Table 4-7: Serial Digital Output - Serial Output Data Rate
Parameter
Serial Output Data Rate
Symbol
BRSDO
Conditions
SMPTE 424M signal
SMPTE 292 signal
SMPTE 259M-C signal
Min
−
−
−
Typ
2.97, 2.97/1.001
1.485, 1.485/1.001
270
Max
−
−
−
Units
Gb/s
Gb/s
Mb/s
The SDO and SDO pins of the device provide the serial digital output.
Compliance with all requirements defined in Section 4.9.1 through Section 4.9.4 is
guaranteed when measured across a 75Ω terminated load at the output of 1m of Belden
1694A cable, including the effects of the Gennum recommended ORL matching
network, BNC and coaxial cable connection, except where otherwise stated.
Figure 4-20 illustrates this requirement, which is in accordance with the measurement
methodology defined in SMPTE 424M, SMPTE 292 and SMPTE 259M.
GS2962 3G/HD/SD-SDI Serializer with Complete
SMPTE Video Support
Data Sheet
48005 - 7
October 2010
57 of 82