參數(shù)資料
型號: DS3105LN+
廠商: Maxim Integrated Products
文件頁數(shù): 120/124頁
文件大?。?/td> 0K
描述: IC TIMING LINE CARD 64-LQFP
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 160
類型: 定時卡 IC,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum,電信
輸入: CMOS,LVDS,LVPECL,TTL
輸出: CMOS,LVDS,LVPECL,TTL
電路數(shù): 1
比率 - 輸入:輸出: 5:2
差分 - 輸入:輸出: 無/是
頻率 - 最大: 312.5MHz
電源電壓: 1.62 V ~ 1.98 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-LQFP(10x10)
包裝: 托盤
DS3105
95
Register Name:
OFFSET1
Register Description:
Phase Offset Register 1
Register Address:
70h
Bit #
7
6
5
4
3
2
1
0
Name
OFFSET[7:0]
Default
0
Note: The OFFSET1 and OFFSET2 registers must be read consecutively and written consecutively. See Section 8.3.
Bits 7 to 0: Phase Offset (OFFSET[7:0]). The full 16-bit OFFSET[15:0] field spans this register and the OFFSET2
register. OFFSET is a two’s-complement signed integer that specifies the desired phase offset between the output
clocks and the selected input reference. The phase offset in picoseconds is equal to OFFSET[15:0]
×
actual_internal_clock_period / 2
11. If the internal clock is at its nominal frequency of 77.76MHz, the phase offset
equation simplifies to OFFSET[15:0]
× 6.279ps. If, however, the DPLL is locked to a reference whose frequency is
+1ppm from ideal, for example, then the actual internal clock period is 1ppm shorter and the phase offset is 1ppm
smaller. When the OFFSET field is written, the phase of the output clocks is automatically ramped to the new offset
value to avoid loss of synchronization. To adjust the phase offset without changing the phase of the output clocks,
use the recalibration process enabled by FSCR3:RECAL. The OFFSET field is ignored when phase build-out is
enabled (PBOEN = 1 in the MCR10 register) and when the DPLL is not locked. See Section 7.7.8.
Register Name:
OFFSET2
Register Description:
Phase Offset Register 2
Register Address:
71h
Bit #
7
6
5
4
3
2
1
0
Name
OFFSET[15:8]
Default
0
Bits 7 to 0: Phase Offset (OFFSET[15:8]). See the OFFSET1 register description.
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