IDT82V3280DQG8 IDT, Integrated Device Technology Inc, IDT82V3280DQG8 Datasheet - Page 130
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IDT82V3280DQG8
Manufacturer Part Number
IDT82V3280DQG8
Description
IC PLL WAN SE STRATUM 2 100-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
PLL Clock Generatorr
Datasheet
1.IDT82V3280DQG8.pdf
(171 pages)
Specifications of IDT82V3280DQG8
Input
CMOS, LVDS, PECL, TTL
Output
CMOS, LVDS, PECL, TTL
Frequency - Max
622.08MHz
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-TQFP, 100-VQFP
Frequency-max
622.08MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
82V3280DQG8
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T0_HOLDOVER_FREQ[15:8]_CNFG - T0 DPLL Holdover Frequency Configuration 2
T0_HOLDOVER_FREQ[23:16]_CNFG - T0 DPLL Holdover Frequency Configuration 3
Programming Information
Address: 5EH
Type: Read / Write
Default Value: 00000000
IDT82V3280
Address: 5FH
Type: Read / Write
Default Value: 00000000
T0_HOLDOVER
T0_HOLDOVER
_FREQ15
7 - 0
_FREQ23
7 - 0
Bit
Bit
7
7
T0_HOLDOVER_FREQ[23:16]
T0_HOLDOVER_FREQ[15:8] Refer to the description of the T0_HOLDOVER_FREQ[23:16] bits (b7~0, 5FH).
T0_HOLDOVER
T0_HOLDOVER
_FREQ14
_FREQ22
Name
Name
6
6
T0_HOLDOVER
T0_HOLDOVER
_FREQ13
_FREQ21
The T0_HOLDOVER_FREQ[23:0] bits represent a 2’s complement signed integer.
In T0 DPLL Holdover mode, the value written to these bits multiplied by 0.000011 is the frequency offset set manu-
ally; the value read from these bits multiplied by 0.000011 is the frequency offset automatically slow or fast aver-
aged or manually set, as determined by the READ_AVG bit (b4, 5CH) and the FAST_AVG bit (b5, 5CH).
5
5
T0_HOLDOVE
T0_HOLDOVE
R_FREQ12
R_FREQ20
4
4
130
T0_HOLDOVE
T0_HOLDOVE
R_FREQ11
R_FREQ19
3
3
Description
Description
T0_HOLDOVE
T0_HOLDOVE
R_FREQ10
R_FREQ18
2
2
T0_HOLDOVE
T0_HOLDOVE
R_FREQ17
R_FREQ9
1
1
December 9, 2008
T0_HOLDOVE
T0_HOLDOVE
R_FREQ16
R_FREQ8
0
0
WAN PLL
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