IDT82V3255TFG IDT, Integrated Device Technology Inc, IDT82V3255TFG Datasheet - Page 33

• Manufacturer Part Number: IDT82V3255TFG
• Description: IC PLL WAN SMC STRATUM 3 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Clock Generatorr

Specifications of IDT82V3255TFG

• 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: 82V3255TFG

Table 22: Related Bit / Register in Chapter 3.10
phase locked to any input clock. The T4 DPLL freezes at the operating
frequency when it enters Holdover mode. The accuracy is 4.4X10
ppm.
Functional Description
Note: * The setting in the 5B, 62 ~ 64, 68 and 69 registers is either for T0 path or for T4 path, as determined by the T4_T0_SEL bit.
IDT82V3255
T0_DPLL_LOCKED_DAMPING[2:0]
T4_DPLL_LOCKED_DAMPING[2:0]
T0_DPLL_START_DAMPING[2:0]
TEMP_HOLDOVER_MODE[1:0]
T0_DPLL_ACQ_DAMPING[2:0]
CURRENT_DPLL_FREQ[23:0]
T0_HOLDOVER_FREQ[23:0]
T0_DPLL_LOCKED_BW[4:0]
T4_DPLL_LOCKED_BW[1:0]
CURRENT_PH_DATA[15:0]
T0_DPLL_START_BW[4:0]
T0_DPLL_ACQ_BW[4:0]
MAN_HOLDOVER
AUTO_BW_SEL
FAST_LOS_SW
AUTO_AVG
READ_AVG
T4_T0_SEL
FAST_AVG
Bit
T0_HOLDOVER_FREQ[23:16]_CNFG, T0_HOLDOVER_FREQ[15:8]_CNFG,
CURRENT_DPLL_FREQ[23:16]_STS, CURRENT_DPLL_FREQ[15:8]_STS,
CURRENT_DPLL_PHASE[15:8]_STS, CURRENT_DPLL_PHASE[7:0]_STS
T0_DPLL_LOCKED_BW_DAMPING_CNFG
T4_DPLL_LOCKED_BW_DAMPING_CNFG
T0_DPLL_START_BW_DAMPING_CNFG
T0_DPLL_ACQ_BW_DAMPING_CNFG
PHASE_LOSS_FINE_LIMIT_CNFG
T0_HOLDOVER_FREQ[7:0]_CNFG
CURRENT_DPLL_FREQ[7:0]_STS
-8
T0_HOLDOVER_MODE_CNFG
T0_BW_OVERSHOOT_CNFG
33
T4_T0_REG_SEL_CNFG
Register
December 3, 2008
Address (Hex)
64 *, 63 *, 62 *
5F, 5E, 5D
69 *, 68 *
WAN PLL
5B *
5C
56
57
58
59
61
07