參數(shù)資料
型號: AD9852/PCBZ
廠商: Analog Devices Inc
文件頁數(shù): 8/52頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD9852
設(shè)計資源: AD9852 Eval Brd BOM
AD9852 Schematic
標(biāo)準(zhǔn)包裝: 1
系列: AgileRF™
類型: 合成器
適用于相關(guān)產(chǎn)品: AD9852
相關(guān)產(chǎn)品: AD9852ASVZ-ND - IC DDS SYNTHESIZER CMOS 80-TQFP
AD9852ASTZ-ND - IC DDS SYNTHESIZER CMOS 80-LQFP
AD9852
Rev. E | Page 16 of 52
TYPICAL APPLICATIONS
RF/IF
INPUT
BASEBAND
REFCLK
COS
AD9852
LOW-PASS
FILTER
00634-025
Figure 25. Synthesized LO Application for the AD9852
I
Q
Rx
RF IN
DUAL
8-/10-BIT
ADC
DIGITAL
DEMODULATOR
Rx BASEBAND
DIGITAL
DATA OUT
8
I/Q MIXER
AND
LOW-PASS
FILTER
VCA
ADC ENCODE
ADC CLOCK FREQUENCY
LOCKED TO Tx CHIP/
SYMBOL/PN RATE
REFERENCE
CLOCK
48
CHIP/SYMBOL/PN
RATE DATA
AD9852
CLOCK
GENERATOR
AGC
00634-026
Figure 26. Chip Rate Generator in Spread Spectrum Application
50
Ω
BAND-PASS
FILTER
50
Ω
IOUT
AD9852
FUNDAMENTAL
FC – FO
IMAGE
FCLK
FC + FO
IMAGE
BAND-PASS
FILTER
FC + FO
IMAGE
AD9852
SPECTRUM
FINAL OUTPUT
SPECTRUM
AMPLIFIER
00634-027
Figure 27. Using an Aliased Image to Generate a High Frequency
LOOP
FILTER
PHASE
COMPARATOR
REFERENCE
CLOCK
FILTER
AD9852
DDS
TUNING
WORD
REFCLK IN
RF FREQUENCY
OUT
DAC OUT
PROGRAMMABLE
DIVIDE-BY-N FUNCTION
(WHERE N = 248/TUNING WORD)
VCO
00634-028
Figure 28. Programmable Fractional Divide-by-N Synthesizer
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