AD9854/PCBZ Analog Devices Inc, AD9854/PCBZ Datasheet - Page 16

• Manufacturer Part Number: AD9854/PCBZ
• Description: 300 MHZ QUADRATURE DDS SYN. Eval Board
• Manufacturer: Analog Devices Inc
• Series: AgileRF™r

Specifications of AD9854/PCBZ

• Main Purpose: Timing, Direct Digital Synthesis (DDS)
• Utilized Ic / Part: AD9854
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD9854
TYPICAL APPLICATIONS
RF IN
Rx
VCA
INPUT
RF/IF
FUNDAMENTAL
Q BASEBAND
I BASEBAND
AD9854
Figure 28. Using an Aliased Image to Generate a High Frequency
ADC CLOCK FREQUENCY
Figure 27. Chip Rate Generator in Spread Spectrum Application
SPECTRUM
F
IMAGE
REFCLK
C
AD9854
LOCKED TO Tx CHIP/
REFCLK
Figure 26. Direct Conversion Quadrature Upconverter
LOW-PASS
– F
I/Q MIXER
SYMBOL/PN RATE
REFERENCE
FILTER
O
AND
CLOCK
F
Figure 25. Quadrature Downconversion
CLK
I
OUT
AD9854
AD9854
F
50Ω
IMAGE
C
+ F
Q
I
Rev. E | Page 16 of 52
O
BAND-PASS
GENERATOR
FILTER
8-/10-BIT
AD9854
CLOCK
DUAL
LPF
LPF
ADC
LPF
LPF
ADC ENCODE
FINAL OUTPUT
50 Ω
SPECTRUM
COS
SIN
COS
SIN
CHIP/SYMBOL/PN
8
8
48
RATE DATA
AMPLIFIER
CHANNEL
SELECT
FILTERS
LPF
LPF
DEMODULATOR
DIGITAL
F
IMAGE
C
+ F
I BASEBAND
Q BASEBAND
RF OUTPUT
O
BAND-PASS
FILTER
AGC
Rx BASEBAND
DIGITAL DATA
OUT