参数资料
型号: DS3105LN+
厂商: Maxim Integrated Products
文件页数: 104/124页
文件大小: 0K
描述: IC TIMING LINE CARD 64-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
类型: 定时卡 IC,多路复用器
PLL:
主要目的: 以太网,SONET/SDH,Stratum,电信
输入: CMOS,LVDS,LVPECL,TTL
输出: CMOS,LVDS,LVPECL,TTL
电路数: 1
比率 - 输入:输出: 5:2
差分 - 输入:输出: 无/是
频率 - 最大: 312.5MHz
电源电压: 1.62 V ~ 1.98 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-LQFP(10x10)
包装: 托盘
DS3105
80
Register Name:
DLIMIT3
Register Description:
DPLL Frequency Limit Register 3
Register Address:
4Dh
Bit #
7
6
5
4
3
2
1
0
Name
FLLOL
SOFTLIM[6:0]
Default
1
0
1
0
Bit 7: Frequency Limit Loss-of-Lock (FLLOL). When this bit is set to 1, the T0 DPLL and the T4 DPLL internally
declare loss-of-lock when their hard limits are reached. The T0 DPLL hard frequency limit is set in the
HARDLIM[9:0] field in the DLIMIT1 and DLIMIT2 registers. The T4 DPLL hard frequency limit is fixed at
±80ppm.
See Section 7.7.6.
0 = DPLL declares loss-of-lock normally.
1 = DPLL also declares loss-of-lock when the hard frequency limit is reached.
Bits 6 to 0: DPLL Soft Frequency Limit (SOFTLIM[6:0]). This field is an unsigned integer that specifies the soft
frequency limit for the T0 DPLL and the T4 DPLL. The soft limit is only used for monitoring; exceeding this limit
does not cause loss-of-lock. The limit in ppm is
±SOFTLIM[6:0] × 0.628. The default value is ±8.79ppm. When the
T0 DPLL frequency reaches the soft limit the T0SOFT status bit is set in the OPSTATE register. When the T4
DPLL frequency reaches the soft limit the T4SOFT status bit is set in OPSTATE. See Section 7.7.6.
Register Name:
IER4
Register Description:
Interrupt Enable Register 4
Register Address:
4Eh
Bit #
7
6
5
4
3
2
1
0
Name
HORDY
Default
0
Bit 6: Interrupt Enable for Holdover Frequency Ready (HORDY). This bit is an interrupt enable for the HORDY
bit in the MSR4 register.
0 = Mask the interrupt
1 = Enable the interrupt
Register Name:
OCR5
Register Description:
Output Configuration Register 1
Register Address:
4Fh
Bit #
7
6
5
4
3
2
1
0
Name
AOF6
AOF3
Default
0
Bit 5: Alternate Output Frequency Mode Select 6 (AOF6). This bit controls the decoding of the OCR3.OFREQ6
field for the OC6 pin.
0 = Standard decodes
1 = Alternate decodes
Bit 2: Alternate Output Frequency Mode Select 3 (AOF3). This bit controls the decoding of the OCR2.OFREQ3
field for the OC3 pin.
0 = Standard decodes
1 = Alternate decodes
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