参数资料
型号: 8N3Q001EG-102LCDI8
厂商: IDT, Integrated Device Technology Inc
文件页数: 4/21页
文件大小: 0K
描述: IC CLCK OSC QUAD FREQUENCY 5X7
特色产品: Fourth-generation FemtoClock for VCXO
标准包装: 1
系列: FemtoClock® NG
类型: 时钟振荡器
频率: 可调节/可选择
电源电压: 2.375 V ~ 3.465 V
电流 - 电源: 150mA
工作温度: -40°C ~ 85°C
封装/外壳: 10-CLCC
包装: 标准包装
供应商设备封装: 10-CLCC
安装类型: 表面贴装
其它名称: 800-2568-6
IDT8N3Q001 REV G Data Sheet
QUAD-FREQUENCY PROGRAMMABLE-XO
IDT8N3Q001GCD REVISION A MARCH 6, 2012
12
2012 Integrated Device Technology, Inc.
Termination for 2.5V LVPECL Outputs
Figure 2A and Figure 2B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminating 50
to VCC – 2V. For VCC = 2.5V, the VCC – 2V is very close to ground
level. The R3 in Figure 2B can be eliminated and the termination is
shown in Figure 2C.
Figure 2A. 2.5V LVPECL Driver Termination Example
Figure 2C. 2.5V LVPECL Driver Termination Example
Figure 2B. 2.5V LVPECL Driver Termination Example
2.5V LVPECL Driver
VCC = 2.5V
2.5V
50
Ω
50
Ω
R1
250
Ω
R3
250
Ω
R2
62.5
Ω
R4
62.5
Ω
+
2.5V LVPECL Driver
VCC = 2.5V
2.5V
50
Ω
50
Ω
R1
50
Ω
R2
50
Ω
+
2.5V LVPECL Driver
VCC = 2.5V
2.5V
50
Ω
50
Ω
R1
50
Ω
R2
50
Ω
R3
18
Ω
+
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