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 ELPIDA
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14 page 
EBE21FD4AJFT Data Sheet E1089E30 (Ver. 3.0) 14 Differential Transmitter Output Specifications* 1 Parameter Symbol min. max. Unit Comments Differential peak-to-peak output voltage for large voltage swing VTX-DIFFp-p_L 900 1300 mV VTX-DIFFp-p = 2 × | VTX-D+ − VTX-D- | Measured as note 2 Differential peak-to-peak output voltage for regular voltage swing VTX-DIFFp-p_R 800 mV VTX-DIFFp-p = 2 × | VTX-D+ − VTX-D- | Measured as note 2 Differential peak-to-peak output voltage for small voltage swing VTX-DIFFp-p_S 520 mV VTX-DIFFp-p = 2 × | VTX-D+ − VTX-D- | Measured as note 2 DC common code output voltage for large voltage swing VTX-CM_L 375 mV Defined as: VTX-CM = DC (avg) of |VTX-D+ + VTX-D-|/2 Measured as note 2 DC common code output voltage for small voltage swing VTX-CM_S 135 280 mV Defined as: VTX-CM = DC (avg) of |VTX-D+ + VTX-D-|/2 Measured as note 2. See also note 3 De-emphasized differential output voltage ratio for -3.5dB de-emphasis VTX-DE-3.5-Ratio −3.0 −4.0 dB 2, 4, 5 De-emphasized differential output voltage ratio for -6dB de-emphasis VTX-DE-6.0-Ratio −5.0 −7.0 dB 2, 4, 5 AC peak-to-peak common mode output voltage for large swing VTX-CM-ACp-p L 90 mV VTX-CM-AC = Max |VTX-D+ + VTX-D-|/2 – Min |VTX-D+ + VTX-D-|/2 Measured as note 2. See also note 6 AC peak-to-peak common mode output voltage for regular swing VTX-CM-ACp-p R 80 mV VTX-CM-AC = Max |VTX-D+ + VTX-D-|/2 – Min |VTX-D+ + VTX-D-|/2 Measured as note 2. See also note 6 AC peak-to-peak common mode output voltage for small swing VTX-CM-ACp-p S 70 mV VTX-CM-AC = Max |VTX-D+ + VTX-D-|/2 – Min |VTX-D+ + VTX-D-|/2 Measured as note 2. See also note 6 Maximum single-ended voltage in EI condition, DC + AC VTX-IDLE-SE 50 mV 7, 8 Maximum single-ended voltage in EI condition, DC only VTX-IDLE-SE-DC 20 mV 7, 8, 9 Maximum peak-to-peak differential voltage in EI condition VTX-IDLE-DIFFp-p 40 mV 8 Single-ended voltage (w.r.t.VSS) on D+/D- VTX-SE −75 750 mV 2, 10 Minimum TX eye width TTX-Eye-MIN 0.7 UI 2, 11, 12 Maximum TX deterministic jitter TTX-DJ-DD 0.2 UI 2, 11, 12, 13 Instantaneous pulse width TTX-PULSE 0.85 UI 14 Differential TX output rise/fall time TTX-RISE, TTX-FALL 30 90 ps Given by 20%-80% voltage levels. Measured as note 2 Mismatch between rise and fall times TTX-RF-MISMATCH 20 ps Differential return loss RLTX-DIFF 8 dB Measured over 0.1GHz to 2.4GHz. See also note 15 Common mode return loss RLTX-CM 6 dB Measured over 0.1GHz to 2.4GHz. See also note 15 |
