EP3C16F484A7N Altera, EP3C16F484A7N Datasheet - Page 93

• Manufacturer Part Number: EP3C16F484A7N
• Description: Cyclone III
• Manufacturer: Altera

Specifications of EP3C16F484A7N

• Family Name: Cyclone III
• Number Of Logic Blocks/elements: 15408
• # I/os (max): 346
• Frequency (max): 437.5MHz
• Process Technology: 65nm
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 15408
• Ram Bits: 516096
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 484
• Package Type: FBGA
• Lead Free Status / Rohs Status: Compliant

Chapter 5: Clock Networks and PLLs in the Cyclone III Device Family
PLL Reconfiguration
© December 2009
Altera Corporation
Charge Pump and Loop Filter
You can reconfigure the charge pump and loop filter settings to update the PLL
bandwidth in real time.
charge pump (ICP), loop filter resistor (R), and capacitor (C) values for Cyclone III
device family PLLs.
Table 5–5. Charge Pump Bit Control
Table 5–6. Loop Filter Resistor Value Control
Table 5–7. Loop Filter Control of High Frequency Capacitor
Bypassing PLL Counter
Bypassing a PLL counter results in a multiply (M counter) or a divide (N, C0 to C4
counters) factor of one.
LFR[4]
0
0
0
0
1
1
1
1
1
1
1
CP[2]
0
1
1
1
LFC[1]
0
0
1
LFR[3]
0
0
0
1
0
0
0
1
1
1
1
Table 5–5
CP[1]
0
0
1
1
LFR[2]
through
0
0
1
0
0
0
1
0
0
1
1
LFC[0]
0
1
1
Table 5–7
LFR[1]
0
1
0
0
0
1
0
0
1
0
1
CP[0]
list the possible settings for
0
0
0
1
Cyclone III Device Handbook, Volume 1
LFR[0]
0
1
0
0
0
1
0
0
1
0
0
Setting (Decimal)
Setting (Decimal)
0
1
3
(Decimal)
0
1
3
7
Setting
16
19
20
24
27
28
30
0
3
4
8
5–29