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| 型号： | DS1085Z-50+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 17/21页 |
| 文件大小： | 0K |
| 描述： | IC ECONOSCILLATOR SYNTH 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 系列： | EconOscillator™ |
| 类型： | 频率合成器 |
| PLL： | 无 |
| 输入： | 时钟 |
| 输出： | 时钟 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 1:2 |
| 差分 - 输入:输出： | 无/无 |
| 频率 - 最大： | 133MHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
DS1085
5 of 21
REGISTER FUNCTIONS
The user-programmable registers can be used to determine the mode of operation (MUX), operating
frequency (DAC, OFFSET, DIV), and bus settings (ADDR). The functions of the registers are described
in this section, but details of how these registers are programmed can be found in a later section. The
register settings are nonvolatile, with the values being stored automatically or as required in EEPROM
when the registers are programmed through the SDA and SCL pins.
DAC WORD (Address 08h)
MSB
LSB
MSB
LSB
d9
d8
d7
d6
d5
d4
d3
d2
d1
d0
X
First Data Byte
Second Data Byte
X = Don’t care.
The DAC word (d0–d9) controls the frequency of the master oscillator. The resolution of this register
depends on the step size of the device. The absolute frequency of the device also depends on the value of
the OFFSET register (see Table 5 and 6).
Table 5. DEFAULT DAC SETTINGS
DS1085Z-10
DS1085Z-25
DS1085Z-50
Frequency
DAC
Offset
Frequency
DAC
Offset
Frequency
DAC
Offset
97.1MHz
500
OS
104.6MHz
600
OS
101.8MHz
500
OS
For any given value of OFFSET the master oscillator frequency can be derived as follows:
Frequency = Min Frequency + DAC x Step Size
where: Min frequency is the lowest frequency shown in Table 6 for the corresponding offset.
DAC is the value of the DAC register (0–1023).
Step size is the step size of the device (10kHz, 25kHz, or 50kHz).
OS is the decimal, integer value of the five MSBs of the RANGE register.
OFFSET BYTE
(Address 0Eh)
MSB
LSB
X
O4
O3
O2
O1
O0
X = Don’t care.
The OFFSET byte (O0–O4) determines the range of frequencies that can be obtained within the absolute
minimum and maximum range of the oscillator. Correct operation of the device is not guaranteed for
values of OFFSET not shown in Table 6.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS1085Z-50+ | 功能描述:可编程振荡器 EconOscillator f Synthesizer RoHS:否 制造商:IDT 封装 / 箱体:5 mm x 7 mm x 1.5 mm 频率:15.476 MHz to 866.67, 975 MHz to 1300 MHz 频率稳定性:+/- 50 PPM 电源电压:3.63 V 负载电容:10 pF 端接类型:SMD/SMT 输出格式:LVPECL 最小工作温度:- 40 C 最大工作温度:+ 85 C 尺寸:7 mm W x 5 mm L x 1.5 mm H 封装: |
| DS1086 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:DS1086 Spread-Spectrum EconOscillator |
| DS1086_1203 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Spread-Spectrum EconOscillator |
| DS1086HU-C01 | 制造商:Maxim Integrated Products 功能描述:TRW 5V OSC 360 KHZ 8% CTR 8192 8U - Rail/Tube |
| DS1086HU-C01/T | 制造商:Maxim Integrated Products 功能描述:TRW 5V OSC 360 K 8% CTR 8192 8U TRL - Tape and Reel |
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