AD9773BSVRL Analog Devices Inc, AD9773BSVRL Datasheet - Page 40

• Manufacturer Part Number: AD9773BSVRL
• Description: IC,D/A CONVERTER,DUAL,12-BIT,CMOS,TQFP,80PIN
• Manufacturer: Analog Devices Inc
• Series: TxDAC®r

Specifications of AD9773BSVRL

• Rohs Status: RoHS non-compliant
• Settling Time: 11ns
• Number Of Bits: 12
• Data Interface: Serial, SPI™
• Number Of Converters: 2
• Voltage Supply Source: Analog and Digital
• Power Dissipation (max): 410mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 80-TQFP Exposed Pad, 80-eTQFP, 80-HTQFP, 80-VQFP
• For Use With: AD9773-EBZ - BOARD EVALUATION AD9773

AD9773
IMAGINARY
IMAGINARY CHANNEL (IN)
REAL CHANNEL (IN)
REAL
A
B
DC
DC
1
2
f
f
C
Q
= COMPLEX MODULATION FREQUENCY
= QUADRATURE MODULATION FREQUENCY
QUADRATURE
MODULATOR
Figure 79. Two-Stage Upconversion and Resulting Image Rejection
MODULATOR
COMPLEX
OUT
Rev. D | Page 40 of 60
–B/2J
–A/2J
–A/4 – B/4J
IMAGINARY CHANNEL (OUT)
A/4 + B/4J A/4 – B/4J
–
–
A/2
B/2
f
–
–
–
A/2 + B/2J
f
C
f
f
f
Q
REAL CHANNEL (OUT)
1
C
C
C
–
f
C
–
f
–
–
Q
f
f
Q
Q
2
A/4 – B/4J
–
f
Q
REJECTED IMAGES
+
f
C
B/2J
A/2J
A/2
B/2
f
f
–
f
C
C
C
f
C
A/4 + B/4J
A/4 + B/4J –A/4 + B/4J
f
Q
–
f
TO QUADRATURE
MODULATOR
C
f
f
f
Q
Q
Q
A/2 – B/2J
A/4 – B/4J
f
Q
+
f
C