IDT82V3280DQG IDT, Integrated Device Technology Inc, IDT82V3280DQG Datasheet - Page 119
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IDT82V3280DQG
Manufacturer Part Number
IDT82V3280DQG
Description
IC PLL WAN SE STRATUM 2 100-TQFP
Manufacturer
IDT, Integrated Device Technology Inc
Type
PLL Clock Generatorr
Specifications of IDT82V3280DQG
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
Function
Wan PLL
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Package Type
TQFP EP
Pin Count
100
Mounting
Surface Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
82V3280DQG
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T4_INPUT_SEL_CNFG - T4 Selected Input Clock Configuration
Programming Information
IDT82V3280
Address: 51H
Type: Read / Write
Default Value: X0000000
3 - 0
Bit
7
6
5
4
7
-
T4_INPUT_SEL[3:0]
T4_TEST_T0_PH
T4_LOCK_T0
T4_LOCK_T0
T0_FOR_T4
Name
6
-
Reserved.
This bit determines whether the T4 DPLL locks to a T0 DPLL output or locks independently from the T0 DPLL.
0: Independently from the T0 path. (default)
1: Locks to a 77.76 MHz or 8 kHz signal from the T0 DPLL 77.76 MHz path.
This bit is valid only when the T4_LOCK_T0 bit (b6, 51H) is ‘1’. It determines whether a 77.76 MHz or 8 kHz signal from the
T0 DPLL 77.76 MHz path is selected by the T4 DPLL.
0: 77.76 MHz. (default)
1: 8 kHz.
This bit determines whether T4 selected input clock is compared with the feedback signal of the T4 DPLL for T4 DPLL locking
or is compared with the T0 selected input clock to get the phase difference between T0 and T4 selected input clocks.
0: The T4 DPLL output. (default)
1: The T0 selected input clock.
These bits are valid only when the T4_LOCK_T0 bit (b6, 51H) is ‘0’. They determines the T4 DPLL input clock selection.
0000: Automatic selection. (default)
0001: Forced selection - IN1 is selected.
0010: Forced selection - IN2 is selected.
......
1101: Forced selection - IN13 is selected.
1110: Forced selection - IN14 is selected.
1111: Reserved.
T0_FOR_T4
5
T4_TEST_T0_PH
4
119
T4_INPUT_SEL3
3
Description
T4_INPUT_SEL2
2
T4_INPUT_SEL1
1
December 9, 2008
T4_INPUT_SEL0
0
WAN PLL
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