GTY and GTYP Transceiver Reference Clock Oscillator Selection Phase Noise Mask

Versal Premium Series Data Sheet: DC and AC Switching Characteristics (DS959)

Document ID
DS959
Release Date
2022-05-02
Revision
1.0 English
Table 1. GTY and GTYP Transceiver Reference Clock Oscillator Selection Phase Noise Mask
Symbol Description 1, 2 Offset Frequency Min Typ Max Units
RINGPLLREFCLKMASK RINGPLL reference clock select phase noise mask at GTY_REFCLK frequency = 156.25 MHz 10 kHz –112 dBc/Hz
100 kHz –128
1 MHz –145
RINGPLL reference clock select phase noise mask at GTY_REFCLK frequency = 312.5 MHz 10 kHz –103 dBc/Hz
100 kHz –123
1 MHz –143
RINGPLL reference clock select phase noise mask at GTY_REFCLK frequency = 625 MHz 10 kHz –98 dBc/Hz
100 kHz –117
1 MHz –140
LCPLLREFCLKMASK LCPLL reference clock select phase noise mask at GTY_REFCLK frequency = 156.25 MHz 10 kHz –112 dBc/Hz
100 kHz –128
1 MHz –145
50 MHz –145
LCPLL reference clock select phase noise mask at GTY_REFCLK frequency = 312.5 MHz 10 kHz –103 dBc/Hz
100 kHz –123
1 MHz –143
50 MHz –145
LCPLL reference clock select phase noise mask at GTY_REFCLK frequency = 625 MHz 10 kHz –98 dBc/Hz
100 kHz –117
1 MHz –140
50 MHz –144
  1. For reference clock frequencies not in this table, use the phase-noise mask for the nearest reference clock frequency.
  2. This reference clock phase-noise mask is superseded by any reference clock phase-noise mask that is specified in a supported protocol, e.g., PCIe.