IDT82V3255TFG8 IDT, Integrated Device Technology Inc, IDT82V3255TFG8 Datasheet - Page 79

• Manufacturer Part Number: IDT82V3255TFG8
• Description: IC PLL WAN SMC STRATUM 3 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Clock Generatorr

Specifications of IDT82V3255TFG8

• Input: CMOS, LVDS, PECL
• Output: CMOS, LVDS, PECL
• Frequency - Max: 622.08MHz
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Frequency-max: 622.08MHz
• Function: Wan PLL
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: TQFP
• Pin Count: 64
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 82V3255TFG8

DECAY_RATE_3_CNFG - Decay Rate for Leaky Bucket Configuration 3
IN_FREQ_READ_CH_CNFG - Input Clock Frequency Read Channel Selection
Programming Information
IDT82V3255
Address: 40H
Type: Read / Write
Default Value: XXXXXX01
Address: 41H
Type: Read / Write
Default Value: XXXX0000
7 - 2
1 - 0
Bit
7 - 4
3 - 0
Bit
7
-
7
-
DECAY_RATE_3_DATA[1:0]
IN_FREQ_READ_CH[3:0]
Name
Name
6
-
-
-
6
-
Reserved.
These bits select an input clock, the frequency of which with respect to the reference clock can be read.
0000: Reserved. (default)
0001, 0010: Reserved.
0011: IN1_CMOS.
0100: IN2_CMOS.
0101: IN1_DIFF.
0110: IN2_DIFF.
0111, 1000: Reserved.
1001: IN3_CMOS.
1010 ~ 1111: Reserved.
Reserved.
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
5
-
5
-
4
-
4
-
IN_FREQ_READ
79
_CH3
3
3
-
Description
Description
IN_FREQ_READ
_CH2
2
2
-
IN_FREQ_READ
DECAY_RATE_
_CH1
3_DATA1
1
1
December 3, 2008
IN_FREQ_READ
DECAY_RATE_
3_DATA0
_CH0
0
0
WAN PLL