APA600-CQ208B Actel, APA600-CQ208B Datasheet - Page 20

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APA600-CQ208B

Manufacturer Part Number
APA600-CQ208B
Description
FPGA ProASICPLUS Family 600K Gates 180MHz 0.22um (CMOS) Technology 2.5V 208-Pin CQFP
Manufacturer
Actel
Datasheet

Specifications of APA600-CQ208B

Package
208CQFP
Family Name
ProASICPLUS
Device System Gates
600000
Number Of Registers
21504
Maximum Internal Frequency
180 MHz
Typical Operating Supply Voltage
2.5 V
Maximum Number Of User I/os
158
Ram Bits
129024
Re-programmability Support
Yes
Timing Control and
Characteristics
ProASIC
ProASIC
clock conditioning capabilities. Each member of the
ProASIC
blocks which perform the following functions:
Each PLL has the following key features:
Note: Jitter (ps) = Jitter (%) × period
For Example:
Physical Implementation
Each side of the chip contains a clock conditioning circuit
based on a 180 MHz PLL block
2-11). Two global multiplexed lines extend along each
side of the chip to provide bidirectional access to the PLL
on that side (neither MUX can be connected to the
opposite side's PLL). Each global line has optional LVPECL
input pads (described below). The global lines may be
driven by either the LVPECL global input pad or the
outputs from the PLL block, or both. Each global line can
be driven by a different output from the PLL. Unused
global pins can be configured as regular I/Os or left
unconnected. They default to an input with pull-up. The
two signals available to drive the global networks are as
2 -1 0
Jitter in picoseconds at 100 MHz = 0.01 × (1/100E6) = 100 ps
ProASIC
• Clock Phase Adjustment via Programmable Delay
• Clock Skew Minimization
• Clock Frequency Synthesis
• Input Frequency Range (f
• Feedback Frequency Range (f
• Output Frequency Range (f
• Output Phase Shift = 0 ° and 180 °
• Output Duty Cycle = 50%
• Low Output Jitter (maximum at 25°C)
• Low Power Consumption – 6.9 mW (max. – analog
• Maximum Acquisition
1. This mode is available through the delay feature of the global MUX driver.
(250 ps steps from –7 ns to +8 ns)
– f
– 10 MHz < f
– f
supply) + 7.0 µW/MHz (max. – digital supply)
Time
PLUS
PLUS
PLUS
VCO
VCO
PLUS
devices provide designers with very flexible
family contains two phase-locked loop (PLL)
Flash Family FPGAs
<10 MHz. Jitter ±1% or better
> 60 MHz. Jitter ±1% or better
Clock Management System
VCO
< 60 MHz. Jitter ±2% or better
= 80 µs for f
= 30 µs for f
IN
) = 1.5 to 180 MHz
OUT
(Figure 2-11 on page
VCO
) = 8 to 180 MHz
) = 24 to 180 MHz
VCO
VCO
> 40 MHz
< 40 MHz
v5.9
follows
12, and
Global A (secondary clock)
Global B
Functional Description
Each PLL block contains four programmable dividers as
shown in
frequency scaling of the input clock signal as follows:
The implementations shown in
the user to define a wide range of frequency multiplier
and divisors.
• Output from Global MUX A
• Conditioned version of PLL output (f
• Divided version of either of the above
• Further delayed version of either of the above
• Output from Global MUX B
• Delayed or advanced version of f
• Divided version of either of the above
• Further delayed version of either of the above
• The n divider divides the input clock by integer
• The m divider in the feedback path allows
• The two dividers together can implement any
• The output frequency of the PLL core is given by
• The third and fourth dividers (u and v) permit the
f
OUT
or advanced
(0.25 ns, 0.50 ns, or 4.00 ns delay)
(0.25 ns, 0.50 ns, or 4.00 ns delay)
factors from 1 to 32.
multiplication of the input clock by integer factors
ranging from 1 to 64.
combination
resulting in a clock frequency between 24 and 180
MHz exiting the PLL core. This clock has a fixed
50% duty cycle.
the formula in
frequency):
signals applied to the global network to each be
further divided by integer factors ranging from 1
to 4.
Table 2-8 on page
(Figure 2-12 on page
= f
REF
Figure 2-11 on page
× m ÷ n
of
f
f
EQ 2-1
GLB
GLA
2-13):
multiplication
=
=
-----------------
(
---------------- -
(
n u
n v
(f
2-12,
m
m
×
REF
×
EQ 2-2
)
)
is the reference clock
Table 2-7 on page 2-
2-11. These allow
and
OUT
1
2
OUT
and
EQ 2-3
) – delayed
division
enable
EQ 2-1
EQ 2-2
EQ 2-3

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