ep2sgx30c Altera Corporation, ep2sgx30c Datasheet - Page 181

• Manufacturer Part Number: ep2sgx30c
• Description: Stratix Ii Gx Device Data Sheet
• Manufacturer: Altera Corporation

Figure 4–2. Lock Time Parameters for Automatic Mode
Figure 4–3. Receiver Input Waveform
Altera Corporation
October 2007
CDR status
r x_freqlocked
r x_dataout
Single-Ended Waveform
Differential Waveform
Figures 4–3
output waveforms, respectively.
V
CM
V
LTR
Invalid
ID
and
data
V
4–4
ID
Data lock time from rx_freqlocked
show differential receiver input and transmitter
V ID (diff peak-peak) = 2 x V ID (single-ended)
Stratix II GX Device Handbook, Volume 1
V
ID
DC and Switching Characteristics
LTD
p − n = 0 V
Positive Channel (p)
Negative Channel (n)
Ground
Valid
data
4–11