IGLOO PLUS Low Power Flash FPGAs
Revision 16
2-61
Clock Conditioning Circuits
CCC Electrical Specifications
Timing Characteristics
Table 2-90 IGLOO PLUS CCC/PLL Specification
For IGLOO PLUS V2 or V5 devices, 1.5 V DC Core Supply Voltage
Parameter
Min.
Typ.
Max.
Units
Clock Conditioning Circuitry Input Frequency fIN_CCC
1.5
250
MHz
Clock Conditioning Circuitry Output Frequency fOUT_CCC
0.75
250
MHz
Delay Increments in Programmable Delay Blocks 1, 2
3603
ps
Number of Programmable Values in Each Programmable Delay Block
32
Serial Clock (SCLK) for Dynamic PLL4,5
100
MHz
Input Cycle-to-Cycle Jitter (peak magnitude)
1
ns
Acquisition Time
LockControl = 0
300
s
LockControl = 1
6.0
ms
Tracking Jitter6
LockControl = 0
2.5
ns
LockControl = 1
1.5
ns
Output Duty Cycle
48.5
51.5
%
Delay Range in Block: Programmable Delay 1 1, 2
1.25
15.65
ns
Delay Range in Block: Programmable Delay 2 1, 2
0.469
15.65
ns
Delay Range in Block: Fixed Delay 1, 2
3.5
ns
VCO Output Peak-to-Peak Period Jitter FCCC_OUT7
Maximum Peak-to-Peak Period Jitter7,8,9
SSO
2 SSO 4
SSO
8
SSO
16
0.75 MHz to 50 MHz
0.50%
0.60%
0.80%
1.20%
50 MHz to 250 MHz
2.50%
4.00%
6.00%
12.00%
Notes:
2. TJ = 25°C, VCC = 1.5 V
3. When the CCC/PLL core is generated by Microsemi core generator software, not all delay values of the specified delay
increments are available. Refer to the Libero SoC Online Help associated with the core for more information.
4. Maximum value obtained for a STD speed grade device in Worst Case Commercial Conditions. For specific junction
5. The AGLP030 device does not support a PLL.
6. Tracking jitter is defined as the variation in clock edge position of PLL outputs with reference to the PLL input clock
edge. Tracking jitter does not measure the variation in PLL output period, which is covered by the period jitter
parameter.
7. VCO output jitter is calculated as a percentage of the VCO frequency. The jitter (in ps) can be calculated by multiplying
the VCO period by the per cent jitter. The VCO jitter (in ps) applies to CCC_OUT regardless of the output divider
settings. For example, if the jitter on VCO is 300 ps, the jitter on CCC_OUT is also 300 ps, regardless of the output
divider settings.
8. Measurements done with LVTTL 3.3 V 8 mA I/O drive strength and high slew rate, VCC/VCCPLL = 1.425 V,
VCCI = 3.3 V, VQ/PQ/TQ type of packages, 20 pF load.
9. SSO are outputs that are synchronous to a single clock domain and have clock-to-out times that are within ±200 ps of
each other. Switching I/Os are placed outside of the PLL bank. Refer to the "Simultaneously Switching Outputs (SSOs) and