Data Sheet
June 1999
ORCA Series 3C and 3T FPGAs
Timing Characteristics (continued)
Table 50. Programmable Clock Manager (PCM) Timing Characteristics (Preliminary Information)
DD
≤ A < 70 °C; Industrial: VDD = 5.0 V ± 10%, –40 °C < TA < +85 °C.
T
OR3Cxx Commercial: V
= 5.0 V ± 5%, 0 °C
DD = 3.0 V to 3.6 V, 0 °C < TA < 70 °C; Industrial: VDD = 3.0 V to 3.6 V, –40 °C < TA < +85 °C.
OR3Txxx Commercial: V
Speed
Parameter
Symbol
-4
-5
-6
-7
Unit
Min
Max
Min
Max
Min
Max
Min
Max
Input Clock Frequency:
OR3Cxx
FPCMI
5
133
—
5
5
133
133
—
5
—
—
5
—
MHz
OR3Txxx
—
133
133 MHz
Output Clock Frequency:
OR3Cxx
FPCMO
5
135
—
5
5
135
100
—
5
—
—
5
—
MHz
OR3Txxx
—
100
100 MHz
Input Clock Duty Cycle
Output Clock Duty Cycle
Input Frequency Tolerance*
PCMI_DUTY
PCMO_DUTY
FTOL
30.00 70.00 30.00 70.00 30.00 70.00 30.00 70.00
3.13 96.90 3.13 96.90 3.13 96.90 3.13 96.90
%
%
—
26400
100
—
26400
100
—
26400
100
—
26400 ppm
PCM Acquisition Time (CLK In to
LOCK)
PCM_ACQ†
36
36
36
36
100
µs
PCM Off Delay (config. Done-L, WE to
PCM power off)
PCMOFF_DEL
PCMDLL-DEL
PCMPLL_DEL
PCMBYE_DEL
PCMBYS_DEL
RTCKD_DEL
—
—
—
—
—
—
—
100.0
1.95
0.00
0.47
0.47
1.30
2.70
—
—
—
—
—
—
—
100.0
1.82
0.00
0.36
0.36
1.10
2.20
—
—
—
—
—
—
—
100.0
1.63
0.00
0.26
0.26
0.90
1.90
—
—
—
—
—
—
—
100.0 ns
PCM Delay in DLL Mode (propagation
delay)
1.50
0.00
0.24
0.24
TBD
ns
ns
ns
ns
ns
PCM Delay in PLL Mode (propagation
delay)
PCM Clock In to PCM Clock Out
(CLK In to ECLK)‡
PCM Clock In to PCM Clock Out
(CLK In to SCLK)‡
Routed Clock-in Delay (routing to PCM
phase detect, using DIV0)
System Clock-out Delay (PCM oscilla- PCMSCK_DEL
tor to SCLK output at PCM)
TBD ns
Parameter
Symbol
fOUT (MHz)
PLL Mode
DLL Mode
Unit
Output Jitter
OUTJIT
5—20
21—30
31—40
41—50
51—60
61—70
71—80
81—90
91—100
250
210
180
155
130
110
95
200
170
145
123
105
90
75
65
55
ps
ps
ps
ps
ps
ps
ps
ps
ps
80
70
* Input frequency tolerance is the allowed input clock frequency change in parts per million.
† See Table 29 and Table 30 for acquisition times for individual frequencies.
‡ PLL mode, divider reg = 1111111 (input freq. = output freq.).
Note: All timing values for the PCM are preliminary information.
Lucent Technologies Inc.
121
AGERE [ AGERE SYSTEMS ]
