Datasheet AD8340 (Analog Devices) - 6

AD8340 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0 0.4 PHASE SETPOINT = 0° 0.2 –5 GAIN SETPOINT = 1.0 B) 0.0 PHASE SETPOINT = 90° d –10 R ( –0.2 RRO –0.4 –15 E B) –0.6 d PHASE SETPOINT = 270° N ( –20 ANCE –0.8 GAIN SETPOINT = 0.5 AI G RM –1.0 –25 O NF –1.2 –30 N CO –1.4 AI G –1.6 GAIN SETPOINT = 0.1 –35
003
PHASE SETPOINT = 180°
006
–1.8
04699-
–40
04699-
–2.0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 45 90 135 180 225 270 315 360 GAIN SETPOINT PHASE SETPOINT (Degrees)
Figure 3. Gain Magnitude vs. Gain Setpoint at Different Phase Setpoints, Figure 6. Gain Conformance Error vs. Phase Setpoint at Different Gain RF Frequency = 880 MHz Setpoints
4 360 PHASE SETPOINT = 135° 3 330 PHASE SETPOINT = 45° B) 2 PHASE SETPOINT = 90° 300 d R ( 1 PHASE SETPOINT = 0° 270 GAIN SETPOINT = 1.0 RRO 240 0 E rees) 210 –1 ANCE PHASE SETPOINT = 315° Deg ( 180 –2 E RM O PHASE SETPOINT = 270° 150 GAIN SETPOINT = 0.1 –3 HAS NF GAIN SETPOINT = 0.5 P 120 –4 N CO PHASE SETPOINT = 180° 90 AI G –5 60 PHASE SETPOINT = 225°
004
–6
007
30
04699-
–7
04699-
0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0 30 60 90 120 150 180 210 240 270 300 330 360 GAIN SETPOINT PHASE SETPOINT (Degrees)
Figure 4. Gain Conformance Error vs. Gain Setpoint at Figure 7. Phase vs. Phase Setpoint at Different Gain Setpoints Different Phase Setpoints
0 6 –2 4 GAIN SETPOINT = 1.0 GAIN SETPOINT = 0.1 –4 2 –6 –8 rees) 0 GAIN SETPOINT = 0.5 Deg B) –10 d R ( –2 N ( –12 GAIN SETPOINT = 1.0 AI RRO –4 G –14 E E GAIN SETPOINT = 0.5 –16 –6 HAS –18 P –8 –20 GAIN SETPOINT = 0.1 –10
008 005
–22
04699- 04699-
–24 –12 0 45 90 135 180 225 270 315 360 0 45 90 135 180 225 270 315 360 PHASE SETPOINT (Degrees) PHASE SETPOINT (Degrees)
Figure 5. Gain Magnitude vs. Phase Setpoint at Different Gain Setpoints Figure 8. Phase Error vs. Phase Setpoint at Different Gain Setpoints Rev. C | Page 6 of 20 Document Outline Features Applications Functional Block Diagram General Description Table of Contents Revision History Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Theory of Operation RF Quadrature Generator I-Q Attenuators and Baseband Amplifiers Output Amplifier Noise and Distortion Gain and Phase Accuracy RF Frequency Range Applications Information Using the AD8340 RF Input and Matching RF Output and Matching Driving the I-Q Baseband Controls Interfacing to High Speed DACs CDMA2000 Application Evaluation Board Schematic and Artwork Outline Dimensions Ordering Guide