EP2AGX65DF29I5N Altera, EP2AGX65DF29I5N Datasheet - Page 125

• Manufacturer Part Number: EP2AGX65DF29I5N
• Description: IC ARRIA II GX FPGA 65K 780FBGA
• Manufacturer: Altera
• Series: Arria II GXr

Specifications of EP2AGX65DF29I5N

• Number Of Logic Elements/cells: 60214
• Number Of Labs/clbs: 2530
• Total Ram Bits: 5246
• Number Of I /o: 364
• Voltage - Supply: 0.87 V ~ 0.93 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 780-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Chapter 5: Clock Networks and PLLs in Arria II Devices
PLLs in Arria II Devices
Figure 5–16. PLL Block Diagram for Arria II Devices
Notes to
(1) The number of post-scale counters is seven for left and right PLLs and ten for top and bottom PLLs.
(2) This is the VCO post-scale counter K.
(3) The FBOUT port is fed by the M counter in Arria II PLLs. The FBOUT port is only available in Arria II GZ devices.
December 2010 Altera Corporation
Cascade input
from adjacent PLL
GCLK/RCLK
Dedicated
clock inputs
pfdena
Figure
PLL Hardware Overview in Arria II Devices
5–16:
4
1
inclk0
inclk1
Figure 5–16
Arria II PLL.
You can drive the GCLK or RCLK clock input with an output from another PLL, a
pin-driven GCLK or RCLK, or through a clock control block, provided the clock
control block is fed by an output from another PLL, or a pin driven dedicated GCLK
or RCLK. An internally-generated global signal or general purpose I/O (GPIO) pin
cannot drive the PLL.
PLL Clock I/O Pins
For Arria II GX devices, each PLL supports one of the following clock I/O pin
configurations:
■
■
One single-ended I/O or one differential I/O pair.
Three single-ended I/O or three differential I/O pairs (this is only supported in
PLL_1 and PLL_3 of EP2AGX95, EP2AGX125, EP2AGX190, and EP2AGX260
devices). You can only access one differential I/O pair or one single-ended pin at a
time.
Switchover
Clock
Block
shows a simplified block diagram of the major components of the
÷n
clkswitch
clkbad0
clkbad1
activeclock
PFD
Circuit
Lock
CP
Arria II Device Handbook Volume 1: Device Interfaces and Integration
locked
LF
VCO
8
no compensation mode
ZDB, External feedback modes
LVDS Compensation mode
Source Synchronous, normal modes
÷2
(2)
To DPA block on
Left/Right PLLs
/2, /4
8
8
÷C0
÷C1
÷C2
÷C3
÷Cn
÷m
(1)
Casade output
to adjacent PLL
FBIN
DIFFIOCLK network
GCLK/RCLK network
GCLKs
RCLKs
DIFFIOCLK from
Left/Right PLLs
LOAD_EN from
Left/Right PLLs
FBOUT (3)
External
memory
interface DLL
External clock
outputs
5–21