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参数资料
型号： IDT82V3280PF
厂商： INTEGRATED DEVICE TECHNOLOGY INC
元件分类： 通信及网络
英文描述： WAN PLL
中文描述： SPECIALTY TELECOM CIRCUIT, PQFP100
封装： TQFP-100
文件页数： 129/167页
文件大小： 1039K
代理商： IDT82V3280PF
IDT82V3280
WAN PLL
Programming Information
129
June 19, 2006
T0_HOLDOVER_MODE_CNFG - T0 DPLL Holdover Mode Configuration
T0_HOLDOVER_FREQ[7:0]_CNFG - T0 DPLL Holdover Frequency Configuration 1
Address: 5CH
Type: Read / Write
Default Value: 010001XX
Bit
Name
Description
7
6
MAN_HOLDOVER
AUTO_AVG
Refer to the description of the FAST_AVG bit (b5, 5CH).
Refer to the description of the FAST_AVG bit (b5, 5CH).
This bit, together with the AUTO_AVG bit (b6, 5CH) and the MAN_HOLDOVER bit (b7, 5CH), determines a fre-
quency offset acquiring method in T0 DPLL Holdover Mode.
5
FAST_AVG
4
READ_AVG
This bit controls the holdover frequency offset reading, which is read from the T0_HOLDOVER_FREQ[23:0] bits
(5FH ~ 5DH).
0: The value read from the T0_HOLDOVER_FREQ[23:0] bits (5FH ~ 5DH) is equal to the one written to them.
(default)
1: The value read from the T0_HOLDOVER_FREQ[23:0] bits (5FH ~ 5DH) is not equal to the one written to them.
The value is acquired by Automatic Slow Averaged method if the FAST_AVG bit (b5, 5CH) is ‘0’; or is acquired by
Automatic Fast Averaged method if the FAST_AVG bit (b5, 5CH) is ‘1’.
These bits determine the frequency offset acquiring method in T0 DPLL Temp-Holdover Mode.
00: The method is the same as that used in T0 DPLL Holdover mode.
01: Automatic Instantaneous. (default)
10: Automatic Fast Averaged.
11: Automatic Slow Averaged.
Reserved.
3 - 2
TEMP_HOLDOVER_MODE[1:0]
1 - 0
-
Address: 5DH
Type: Read / Write
Default Value: 00000000
Bit
Name
Description
7 - 0
T0_HOLDOVER_FREQ[7:0] Refer to the description of the T0_HOLDOVER_FREQ[23:16] bits (b7~0, 5FH).
7
6
5
4
3
2
1
0
MAN_HOLDOV
ER
AUTO_AVG
FAST_AVG
READ_AVG
TEMP_HOLDO
VER_MODE1
TEMP_HOLDO
VER_MODE0
-
-
MAN_HOLDOVER
AUTO_AVG
FAST_AVG
Frequency Offset Acquiring Method
0
0
don’t-care
0
1
Automatic Instantaneous
Automatic Slow Averaged (default)
Automatic Fast Averaged
Manual
1
1
don’t-care
7
6
5
4
3
2
1
0
T0_HOLDOVER
_FREQ7
T0_HOLDOVER
_FREQ6
T0_HOLDOVER
_FREQ5
T0_HOLDOVE
R_FREQ4
T0_HOLDOVE
R_FREQ3
T0_HOLDOVE
R_FREQ2
T0_HOLDOVE
R_FREQ1
T0_HOLDOVE
R_FREQ0
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相关代理商/技术参数
参数描述
IDT82V3280PFBLANK 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:WAN PLL
IDT82V3280PFG 功能描述:IC PLL WAN SE STRATUM 2 100-TQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT
IDT82V3280PFG8 功能描述:IC PLL WAN SE STRATUM 2 100-TQFP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 专用 系列:- 标准包装:1,500 系列:- 类型:时钟缓冲器/驱动器 PLL:是 主要目的:- 输入:- 输出:- 电路数:- 比率 - 输入:输出:- 差分 - 输入:输出:- 频率 - 最大:- 电源电压:3.3V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SSOP（0.209"，5.30mm 宽） 供应商设备封装:28-SSOP 包装:带卷 (TR) 其它名称:93786AFT
IDT82V3280PFGBLANK 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:WAN PLL
IDT82V3285 制造商:IDT 制造商全称:Integrated Device Technology 功能描述:WAN PLL
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