HC4GX15 Datasheet, PDF (647/668 Pages) Altera Corporation – HardCopy IV Device Handbook

Chapter 1: DC and Switching Characteristics of HardCopy IV Devices
Switching Characteristics
Figure 1–2. Lock Time Parameters for Manual Mode
r x_analogreset
CDR status
LTR
LTD
r x_pll_locked
r x_locktodata
r x_dataout
Invalid Data
Valid data
CDR LTR Time
LTD lock time
CDR Minimum T1b
1–17
Figure 1–3. Lock Time Parameters for Automatic Mode
CDR status
r x_freqlocked
r x_dataout
LTR
Invalid data
LTD
Valid data
Data lock time from rx_freqlocked
Table 1–21 through Table 1–23 show the typical VOD for various differential
termination settings for HardCopy IV GX devices.
© June 2009 Altera Corporation
HardCopy IV Device Handbook Volume 4