參數(shù)資料
型號(hào): IDT82V3280DQG8
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 149/171頁
文件大小: 0K
描述: IC PLL WAN SE STRATUM 2 100-TQFP
標(biāo)準(zhǔn)包裝: 750
類型: 時(shí)鐘/頻率發(fā)生器,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,PECL
輸出: CMOS,LVDS,PECL
電路數(shù): 1
比率 - 輸入:輸出: 14:9
差分 - 輸入:輸出: 是/是
頻率 - 最大: 622.08MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 100-TQFP-EP(14x14)
包裝: 帶卷 (TR)
其它名稱: 82V3280DQG8
IDT82V3280
WAN PLL
Programming Information
79
December 9, 2008
7.2.3
INPUT CLOCK FREQUENCY & PRIORITY CONFIGURATION REGISTERS
IN1_CNFG - Input Clock 1 Configuration
IN2_CNFG - Input Clock 2 Configuration
Address: 14H
Type: Read / Write
Default Value: X0000000
Bit
Name
Description
7-
Reserved.
6
400HZ_SEL
This bit should be set to match the clock input on IN1:
0: 64 kHz + 8 kHz. (default)
1: 64 kHz + 8 kHz + 0.4 kHz.
5 - 4
BUCKET_SEL[1:0]
These bits select one of the four groups of leaky bucket configuration registers for IN1:
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:
0000: 8 kHz. (default)
0001 ~ 1111: Reserved.
Address: 15H
Type: Read / Write
Default Value: X0000000
Bit
Name
Description
7-
Reserved.
6
400HZ_SEL
This bit should be set to match the clock input on IN2:
0: 64 kHz + 8 kHz. (default)
1: 64 kHz + 8 kHz + 0.4 kHz.
5 - 4
BUCKET_SEL[1:0]
These bits select one of the four groups of leaky bucket configuration registers for IN2:
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 IN2:
0000: 8 kHz. (default)
0001 ~ 1111: Reserved.
76543210
-
400HZ_SEL
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
76
543
210
-
400HZ_SEL
BUCKET_SEL1
BUCKET_SEL0
IN_FREQ3
IN_FREQ2
IN_FREQ1
IN_FREQ0
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