参数资料
型号: EVAL-AD5382EBZ
厂商: Analog Devices Inc
文件页数: 30/40页
文件大小: 0K
描述: BOARD EVAL FOR AD5382
产品培训模块: DAC Architectures
标准包装: 1
DAC 的数量: 32
位数: 14
采样率(每秒): 125k
数据接口: DSP,I²C,MICROWIRE?,并行,QSPI?,SPI?
设置时间: 8µs
DAC 型: 电压
工作温度: -40°C ~ 85°C
已供物品: 板,CD
已用 IC / 零件: AD5382
其它名称: Q4391457
AD5382
Data Sheet
Rev. C | Page 36 of 40
OPTICAL ATTENUATORS
Based on its high channel count, high resolution, monotonic
behavior, and high level of integration, the AD5382 is ideally
targeted at optical attenuation applications used in dynamic
gain equalizers, variable optical attenuators (VOA), and optical
add-drop multiplexers (OADM). In these applications, each
wavelength is individually extracted using an arrayed wave
guide; its power is monitored using a photodiode, transimped-
ance amplifier and ADC in a closed-loop control system.
The AD5382 controls the optical attenuator for each wavelength,
ensuring that the power is equalized in all wavelengths before
being multiplexed onto the fiber. This prevents information loss
and saturation from occurring at amplification stages further
along the fiber.
ATTENUATOR
AWG
FIBRE
DWDM
OUT
OPTICAL
SWITCH
11
12
1n–1
1n
DWDM
IN
AD5382,
32-CHANNEL,
14-BIT DAC
N:1 MULTIPLEXER
16-BIT ADC
CONTROLLER
TIA/LOG AMP
(AD8304/AD8305)
ADG731
(32:1 MUX)
AD7671
(0V TO 5V, 1MSPS)
PHOTODIODES
ADD
PORTS
DROP
PORTS
03733-044
Figure 43. OADM Using the AD5382 as Part of an Optical Attenuator
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