参数资料
型号: IDT82V3355TFG8
厂商: IDT, Integrated Device Technology Inc
文件页数: 63/135页
文件大小: 0K
描述: IC PLL WAN SYNC ETH 64-TQFP
标准包装: 1,250
类型: 时钟/频率发生器,多路复用器
PLL:
主要目的: 以太网,SONET/SDH,Stratum
输入: CMOS,LVDS,PECL
输出: CMOS,LVDS,PECL
电路数: 1
比率 - 输入:输出: 3:2
差分 - 输入:输出: 是/是
频率 - 最大: 622.08MHz
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-TQFP(10x10)
包装: 带卷 (TR)
其它名称: 82V3355TFG8
IDT82V3355
SYNCHRONOUS ETHERNET WAN PLL
Functional Description
33
May 19, 2009
phase locked to any input clock. The T4 DPLL freezes at the operating
frequency when it enters Holdover mode. The accuracy is 4.4X10-8
ppm.
Table 22: Related Bit / Register in Chapter 3.10
Bit
Register
Address (Hex)
CURRENT_PH_DATA[15:0]
CURRENT_DPLL_PHASE[15:8]_STS, CURRENT_DPLL_PHASE[7:0]_STS
69 *, 68 *
CURRENT_DPLL_FREQ[23:0]
CURRENT_DPLL_FREQ[23:16]_STS, CURRENT_DPLL_FREQ[15:8]_STS,
CURRENT_DPLL_FREQ[7:0]_STS
64 *, 63 *, 62 *
T0_DPLL_START_BW[4:0]
T0_DPLL_START_BW_DAMPING_CNFG
56
T0_DPLL_START_DAMPING[2:0]
T0_DPLL_ACQ_BW[4:0]
T0_DPLL_ACQ_BW_DAMPING_CNFG
57
T0_DPLL_ACQ_DAMPING[2:0]
T0_DPLL_LOCKED_BW[4:0]
T0_DPLL_LOCKED_BW_DAMPING_CNFG
58
T0_DPLL_LOCKED_DAMPING[2:0]
AUTO_BW_SEL
T0_BW_OVERSHOOT_CNFG
59
FAST_LOS_SW
PHASE_LOSS_FINE_LIMIT_CNFG
5B *
TEMP_HOLDOVER_MODE[1:0]
T0_HOLDOVER_MODE_CNFG
5C
MAN_HOLDOVER
AUTO_AVG
FAST_AVG
READ_AVG
T0_HOLDOVER_FREQ[23:0]
T0_HOLDOVER_FREQ[23:16]_CNFG, T0_HOLDOVER_FREQ[15:8]_CNFG,
T0_HOLDOVER_FREQ[7:0]_CNFG
5F, 5E, 5D
T4_DPLL_LOCKED_BW[1:0]
T4_DPLL_LOCKED_BW_DAMPING_CNFG
61
T4_DPLL_LOCKED_DAMPING[2:0]
T4_T0_SEL
T4_T0_REG_SEL_CNFG
07
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.
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