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参数资料
| 型号： | OP4004B |
| 厂商： | RFM |
| 文件页数： | 4/7页 |
| 文件大小： | 0K |
| 描述： | IC VCSC OPT CLOCK 625MHZ 8-SMC |
| 标准包装： | 200 |
| 类型： | VCSO（SAW） |
| 频率： | 625MHz |
| 功能： | 三态（输出启用） |
| 电源电压： | 3.13V ~ 5.25V |
| 频率稳定性： | ±100ppm |
| 工作温度： | -40°C ~ 85°C |
| 电流 - 电源（最大）： | 70mA |
| 安装类型： | 表面贴装 |
| 尺寸/尺寸： | 0.530" L x 0.360" W（13.46mm x 9.14mm） |
| 高度： | 0.076"（1.93mm） |
| 封装/外壳： | 8-SMD |
| 包装： | 带卷 (TR) |
Differential Output Symmetry - for balanced output loads, the differential output symmetry of the OP4004B is ±1%.
This differential output symmetry meets the requirements of the most demanding high-speed logic families.
Output DC Voltage Configurability - the OP4004B differential outputs can be DC-configured to support a wide range of high-speed logic families and ASIC
drive requirements by the selection of four resistors (see Configuring the OP4004B DC Output Voltage below) and a logic supply voltage. Each differential
output of the OP4004B is AC-coupled to provide this flexibility.
OP4004B Tuning Details
The frequency tuning of the OP4004B is characterized over a voltage range of 0 to 3.3 V. The tuning voltage applied to the OP4004B should be limited to
this range. Figure 4 shows the typical locked tuning range for operation over -40 or +85 °C. The frequency shift of a quartz SAW frequency control device
with temperature has the shape of an inverted parabola, with the highest frequency occurring around +25 °C. At both -40 and +85 °C, there will be a 170
ppm downward shift in the frequency of the SAW device compared to +25 °C. Tuning to compensate for this temperature shift is the same as tuning
170 ppm higher at +25 °C. This is well within the tuning range of the OP4004B, as shown in Figure 4. Note that the voltage tuning constant, K V , is bounded
between 140 and 300 ppm/V under locked conditions for any temperature within the OP4004B's specified operating range.
The OP4004B tuning port presents a input impedance greater than 100 kilohms from DC to 50 kHz, and at least 1 kilohm for any RF frequency up to the
operating frequency of the OP4004B. Most operational amplifiers used in active loop filters will be stable when driving the tuning port directly. Special care
are should be taken to avoid ground loops in the path from the output of the phase detector though the loop filter to the tuning input of the OP4004B. For
most applications, the bandwidth of the loop filter in a OP4004B PLL will be less than 50 Hz, as discussed in the example OP4004B PLL application section
below.
Configuring the OP4004B DC Output Voltage
Each differential output of the OP4004B is AC coupled, allowing the static DC level at each output to be set with a resistive divider to match the logic family
being driven by the clock. The parallel-equivalent resistance of the two resistors in each divider should be approximately 50 ohms. The supply voltage to
the dividers, V LOAD , should be two to three times the value of the static DC voltage, V DC .
Referring to the accompanying figure :
V DC = V LOAD *R1/(R1 + R2)
OP4004B DC Output Voltage Adjustment
and
V LOAD
50 = R1*R2/(R1 + R2)
3.3 Vdc
The values of the resistors R2 and R1 are
given directly as:
V TUNE
OP4004B
R2
R2
V DC
Load
R2 = 50*V LOAD /V DC
R1
R1
V DC
R1 = 1/(0.02 - (1/R2))
www.RFM.com E-mail: info@rfm.com
?2008 by RF Monolithics, Inc.
Page 4 of 7
OP4004B - 3/27/08
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PDF描述 |
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| OP4005B1 | IC VCSC OPT CLK 622.08MHZ 8-SMCA |
| OP4005B | IC VCSC OPT CLOCK 622.08MHZ 8SMC |
| OP4006B1 | IC VCSC OPT CLK 666.51MHZ 8-SMCA |
| OP4006B | IC VCSC OPT CLK 666.51MHZ 8-SMC |
| OP4007B | IC OPT TIME CLK 669.128MHZ 8-SMC |
相关代理商/技术参数 |
参数描述 |
|---|---|
| OP4005B | 功能描述:IC VCSC OPT CLOCK 622.08MHZ 8SMC RoHS:是 类别:晶体和振荡器 >> 振荡器 系列:- 标准包装:1 系列:VG-4512CA 类型:VCXO 频率:153.6MHz 功能:三态（输出启用） 输出:LVPECL 电源电压:3.3V 频率稳定性:- 工作温度:-40°C ~ 85°C 电流 - 电源（最大）:60mA 额定值:- 安装类型:表面贴装 尺寸/尺寸:0.276" L x 0.197" W（7.00mm x 5.00mm） 高度:0.071"（1.80mm） 封装/外壳:6-SMD，无引线（DFN，LCC） 包装:Digi-Reel® 电流 - 电源（禁用）（最大）:- 其它名称:SER3790DKR |
| OP4005B1 | 功能描述:IC VCSC OPT CLK 622.08MHZ 8-SMCA RoHS:是 类别:晶体和振荡器 >> 振荡器 系列:- 标准包装:1 系列:VG-4512CA 类型:VCXO 频率:153.6MHz 功能:三态（输出启用） 输出:LVPECL 电源电压:3.3V 频率稳定性:- 工作温度:-40°C ~ 85°C 电流 - 电源（最大）:60mA 额定值:- 安装类型:表面贴装 尺寸/尺寸:0.276" L x 0.197" W（7.00mm x 5.00mm） 高度:0.071"（1.80mm） 封装/外壳:6-SMD，无引线（DFN，LCC） 包装:Digi-Reel® 电流 - 电源（禁用）（最大）:- 其它名称:SER3790DKR |
| OP4006B | 功能描述:IC VCSC OPT CLK 666.51MHZ 8-SMC RoHS:是 类别:晶体和振荡器 >> 振荡器 系列:- 标准包装:1 系列:VG-4512CA 类型:VCXO 频率:153.6MHz 功能:三态（输出启用） 输出:LVPECL 电源电压:3.3V 频率稳定性:- 工作温度:-40°C ~ 85°C 电流 - 电源（最大）:60mA 额定值:- 安装类型:表面贴装 尺寸/尺寸:0.276" L x 0.197" W（7.00mm x 5.00mm） 高度:0.071"（1.80mm） 封装/外壳:6-SMD，无引线（DFN，LCC） 包装:Digi-Reel® 电流 - 电源（禁用）（最大）:- 其它名称:SER3790DKR |
| OP4006B1 | 功能描述:IC VCSC OPT CLK 666.51MHZ 8-SMCA RoHS:是 类别:晶体和振荡器 >> 振荡器 系列:- 标准包装:1 系列:VG-4512CA 类型:VCXO 频率:153.6MHz 功能:三态（输出启用） 输出:LVPECL 电源电压:3.3V 频率稳定性:- 工作温度:-40°C ~ 85°C 电流 - 电源（最大）:60mA 额定值:- 安装类型:表面贴装 尺寸/尺寸:0.276" L x 0.197" W（7.00mm x 5.00mm） 高度:0.071"（1.80mm） 封装/外壳:6-SMD，无引线（DFN，LCC） 包装:Digi-Reel® 电流 - 电源（禁用）（最大）:- 其它名称:SER3790DKR |
| OP4007B | 功能描述:IC OPT TIME CLK 669.128MHZ 8-SMC RoHS:是 类别:晶体和振荡器 >> 振荡器 系列:- 标准包装:1 系列:VG-4512CA 类型:VCXO 频率:153.6MHz 功能:三态（输出启用） 输出:LVPECL 电源电压:3.3V 频率稳定性:- 工作温度:-40°C ~ 85°C 电流 - 电源（最大）:60mA 额定值:- 安装类型:表面贴装 尺寸/尺寸:0.276" L x 0.197" W（7.00mm x 5.00mm） 高度:0.071"（1.80mm） 封装/外壳:6-SMD，无引线（DFN，LCC） 包装:Digi-Reel® 电流 - 电源（禁用）（最大）:- 其它名称:SER3790DKR |
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