参数资料
型号: IDT82V3358EDG
厂商: IDT, Integrated Device Technology Inc
文件页数: 102/139页
文件大小: 0K
描述: IC PLL WAN SYNC ETHERNET 64TQFP
标准包装: 160
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: 2:4
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-TQFP 裸露焊盘
供应商设备封装: 64-TQFP-EP(10x10)
包装: 托盘
IDT82V3358
SYNCHRONOUS ETHERNET WAN PLL
Programming Information
65
May 19, 2009
6.2.3
INPUT CLOCK FREQUENCY & PRIORITY CONFIGURATION REGISTERS
IN1_CMOS_CNFG - CMOS Input Clock 1 Configuration
Address: 16H
Type: Read / Write
Default Value: 00000000
Bit
Name
Description
7
DIRECT_DIV
Refer to the description of the LOCK_8K bit (b6, 16H).
6LOCK_8K
This bit, together with the DIRECT_DIV bit (b7, 16H), determines whether the DivN Divider or the Lock 8k Divider is used for
IN1_CMOS:
5 - 4
BUCKET_SEL[1:0]
These bits select one of the four groups of leaky bucket configuration registers for IN1_CMOS:
00: Group 0; the addresses of the configuration registers are 31H ~ 34H. (default)
01: Group 1; the addresses of the configuration registers are 35H ~ 38H.
10: Group 2; the addresses of the configuration registers are 39H ~ 3CH.
11: Group 3; the addresses of the configuration registers are 3DH ~ 40H.
3 - 0
IN_FREQ[3:0]
These bits set the DPLL required frequency for IN1_CMOS:
0000: 8 kHz. (default)
0001: 1.544 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘1’) / 2.048 MHz (when the IN_SONET_SDH bit (b2, 09H) is ‘0’).
0010: 6.48 MHz.
0011: 19.44 MHz.
0100: 25.92 MHz.
0101: 38.88 MHz.
0110 ~ 1000: Reserved.
1001: 2 kHz.
1010: 4 kHz.
1011 ~ 1111: Reserved.
For IN1_CMOS, the required frequency should not be set higher than that of the input clock.
76
543
210
DIRECT_DIV
LOCK_8K
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
DIRECT_DIV bit
LOCK_8K bit
Used Divider
0
Both bypassed (default)
0
1
Lock 8k Divider
10
DivN Divider
11
Reserved
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