参数资料
型号: DAC8408FP
厂商: PRECISION MONOLITHICS INC
元件分类: DAC
英文描述: Quad 8-Bit Multiplying CMOS D/A Converter with Memory
中文描述: 8-BIT DAC, PDIP28
文件页数: 14/16页
文件大小: 217K
代理商: DAC8408FP
DAC8408
–14–
REV. A
Figure 11. A Digitally Programmable, Low-Distortion Sinewave Oscillator
A LOW-DIST ORT ION, PROGRAMMABLE
SINE WAVE OSCILLAT OR
By varying the previous state-variable filter topology slightly,
one can obtain a very low distortion sinewave oscillator with
programmable frequency feature as shown in Figure 11. Again,
DAC B and DAC D in tandem control the oscillating frequency
based on the relationship f
C
= 1/2
π
RC. Positive feedback is
accomplished via the 82.5 k
and the 20 k
potentiometer.
T he Q of the oscillator is determined by the ratio of 10 k
and
475
in series with the FET transistor, which acts as an auto-
matic gain control variable resistor. T he AGC action maintains
a very stable sinewave amplitude at any frequency. Again, only
two ICs accomplish a very useful function.
At the highest frequency setting, the harmonic distortion level
measures 0.016%. As the frequencies drop, distortion also drops
to a low of 0.006%. At the lowest frequency setting, distortion
came back up to a worst case of 0.035%.
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相关代理商/技术参数
参数描述
DAC8408FPC 功能描述:IC DAC 8BIT QUAD W/MEMORY 28PLCC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
DAC8408FPC3 制造商:AD 制造商全称:Analog Devices 功能描述:Quad 8-Bit Multiplying CMOS D/A Converter with Memory
DAC8408FPCZ 功能描述:IC DAC 8BIT QUAD MULTIPLY 28PLCC RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k
DAC8408FPZ 功能描述:IC DAC 8BIT QUAD W/MEMORY 28DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 标准包装:1 系列:- 设置时间:4.5µs 位数:12 数据接口:串行,SPI? 转换器数目:1 电压电源:单电源 功率耗散(最大):- 工作温度:-40°C ~ 125°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-SOICN 包装:剪切带 (CT) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):* 其它名称:MCP4921T-E/SNCTMCP4921T-E/SNRCTMCP4921T-E/SNRCT-ND
DAC8408FS 功能描述:IC DAC 8BIT QUAD W/MEMORY 28SOIC RoHS:否 类别:集成电路 (IC) >> 数据采集 - 数模转换器 系列:- 产品培训模块:Data Converter Fundamentals DAC Architectures 标准包装:750 系列:- 设置时间:7µs 位数:16 数据接口:并联 转换器数目:1 电压电源:双 ± 功率耗散(最大):100mW 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-LCC(J 形引线) 供应商设备封装:28-PLCC(11.51x11.51) 包装:带卷 (TR) 输出数目和类型:1 电压,单极;1 电压,双极 采样率(每秒):143k