參數(shù)資料
型號(hào): EVAL-AD5380EBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 30/40頁(yè)
文件大小: 0K
描述: BOARD EVAL FOR AD5380
產(chǎn)品培訓(xùn)模塊: DAC Architectures
標(biāo)準(zhǔn)包裝: 1
DAC 的數(shù)量: 40
位數(shù): 14
采樣率(每秒): 125k
數(shù)據(jù)接口: DSP,I²C,MICROWIRE?,并行,QSPI?,SPI?
設(shè)置時(shí)間: 8µs
DAC 型: 電壓
工作溫度: -40°C ~ 85°C
已供物品: 板,CD
已用 IC / 零件: AD5380
AD5380
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 AD5380 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, transim-
pedance amplifier and ADC in a closed-loop control system.
The AD5380 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
AD5380,
40-CHANNEL,
14-BIT DAC
N:1 MULTIPLEXER
16-BIT ADC
CONTROLLER
TIA/LOG AMP
(AD8304/AD8305)
ADG731
(40:1 MUX)
AD7671
(0V TO 5V, 1MSPS)
PHOTODIODES
ADD
PORTS
DROP
PORTS
03731-044
Figure 44. OADM Using the AD5380 as Part of an Optical Attenuator
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