参数资料
型号: DS1884AT+T
厂商: Maxim Integrated Products
文件页数: 18/92页
文件大小: 0K
描述: IC SFP PON ONU CTRLR 24TQFN
标准包装: 2,500
系列: *
DS1884
SFP and PON ONU Controller
with Digital LDD Interface
25
Maxim Integrated
The delta-sigma output uses pulse-density modulation.
It provides much lower output ripple than a standard
digital PWM output given the same clock rate and filter
components. An RC filter is required on the DAC output
as suggested in Figure 8. The external RC filter compo-
nents are chosen based on ripple requirements, output
load, delta sigma frequency, and desired response time.
Before tINIT, the DAC output is high impedance.
The reference input, REFIN, is the supply voltage for the
DAC’s output buffer. The voltage source connected to
REFIN must be able to support the edge rate require-
ments of the delta sigma outputs. In a typical application,
a 0.1uF capacitor should be connected between REFIN
and ground.
The DS1884’s delta-sigma output is 9 bits. For illustrative
purposes, a 3-bit example is provided in Figure 9.
Figure 9. Delta-Sigma Output
O
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DS1884T+ 功能描述:ADC / DAC多通道 SFP+ Controller w/ Digi LDD Interface RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
DS1884T+T 功能描述:ADC / DAC多通道 SFP+ Controller w/ Digi LDD Interface RoHS:否 制造商:Texas Instruments 转换速率: 分辨率:8 bit 接口类型:SPI 电压参考: 电源电压-最大:3.6 V 电源电压-最小:2 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-40
DS1886 制造商:未知厂家 制造商全称:未知厂家 功能描述:带有数字LDD接口的SFP和PON ONU控制器
DS1886_V1 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:SFP and PON ONU Controller with Digital LDD Interface
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