Datasheet AD8341 (Analog Devices) - 6

AD8341 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0 1.0 PHASE SETPOINT = 0
°
GAIN SETPOINT = 1.0 0.5 –5 GAIN SETPOINT = 0.5 PHASE SETPOINT = 270
°
0 –10 –0.5 –15 –1.0 PHASE SETPOINT = 180
°
–1.5 –20 PHASE SETPOINT = 90
°
–2.0 GAIN (dB) GAIN SETPOINT = 0.25 –25 –2.5 –3.0 –30 GAIN CONFORMANCE ERROR (dB) –3.5 –35 GAIN SETPOINT = 0.1 –4.0
04700-003
–40
04700-006
–4.5 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 Figure 6. Gain Conformance Error vs. Phase Setpoint at Phase Setpoints, RF Frequency = 1900 MHz Different Gain Setpoints, RF Frequency = 1900 MHz
6 360 PHASE SETPOINT = 315
°
5 315 4 PHASE SETPOINT = 270
°
GAIN SETPOINT = 0.25 3 PHASE SETPOINT = 0
°
270 2 GAIN SETPOINT = 0.5 PHASE SETPOINT = 45
°
1 225 0 GAIN SETPOINT = 0.1 GAIN SETPOINT = 1.0 –1 180 PHASE SETPOINT = 225
°
–2 135 –3 PHASE (Degrees) PHASE SETPOINT = 90
°
–4 PHASE SETPOINT = 180
°
90 –5 GAIN CONFORMANCE ERROR (dB) –6 45 –7 PHASE SETPOINT = 135
° 04700-004
–8
04700-007
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 4. Gain Conformance Error vs. Gain Setpoint at Figure 7. Phase vs. Phase Setpoint at Different Phase Setpoints, RF Frequency = 1900 MHz Different Gain Setpoints, RF Frequency = 1900 MHz
–2 25 GAIN SETPOINT = 1.0 GAIN SETPOINT = 0.1 –4 –6 20 –8 GAIN SETPOINT = 0.5 15 –10 GAIN SETPOINT = 0.25 –12 10 –14 GAIN SETPOINT = 0.25 5 –16 GAIN (dB) –18 0 GAIN SETPOINT = 0.5 –20 GAIN SETPOINT = 1.0 PHASE ERROR (Degrees) –22 –5 –24 GAIN SETPOINT = 0.1 –10 –26
04700-005
–28
04700-008
–15 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 Figure 8. Phase Error vs. Phase Setpoint at Different Gain Setpoints, Gain Setpoints, RF Frequency = 1900 MHz RF Frequency = 1900 MHz Rev. B | 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 AD8341 RF INPUT AND MATCHING RF OUTPUT AND MATCHING DRIVING THE I-Q BASEBAND CONTROLS INTERFACING TO HIGH SPEED DACs CDMA2000 APPLICATION WCDMA APPLICATION EVALUATION BOARD OUTLINE DIMENSIONS ORDERING GUIDE