Datasheet AD8340 (Analog Devices) - 7

Data Sheet AD8340 –142 0 –143 –144 –0.5 ) z –145 ) /H B m RF PIN = +5dBm dB –146 –1.0 ( ESS (d –147 N RF P T IN = –5dBm A FLOOR –148 FL –1.5 E RF PIN = 0dBm IN OIS –149 GA N –150 –2.0 NO RF INPUT –151
009 012
–152
04699- 04699-
–2.5 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 700 750 800 850 900 950 1000 GAIN SETPOINT FREQUENCY (MHz)
Figure 9. Output Noise Floor vs. Gain, Noise in dBm/Hz, No Carrier, Figure 12. Gain Flatness vs. Frequency, Maximum Gain, Phase Setpoint = 0° With Carrier (20 MHz Offset) PIN = −5 dBm, 0 dBm, and +5 dBm
0 0 –2 GAIN SETPOINT = 1.0 –10 –4 Bm) d –20 –6 R ( E W –30 FUNDAMENTAL POWER, 879MHz, 881MHz –8 O GAIN SETPOINT = 0.5 B) –10 –40 d SECOND BASEBAND HARMONIC PRODUC T, N ( –12 BAND P –50 AI 878MHz, 882MHz IDE G –14 S –60 –16 AM –70 –18 UT P THIRD BASEBAND HARMONIC PRODUC T, GAIN SETPOINT = 0.1 –80 –20 UT 877MHz, 883MHz O
010
–22 –90
013
RF
04699-
–24
04699-
–100 700 750 800 850 900 950 1000 100 200 300 400 500 600 700 800 900 1000 FREQUENCY (MHz) DIFFERENTIAL BASEBAND INPUT LEVEL (mV p-p) (I OR Q CHANNEL DRIVEN AT 1MHz)
Figure 10. Gain vs. Frequency at Different Gain Setpoints Figure 13. Baseband Harmonic Distortion (700 MHz to 1000 MHz), Phase Setpoint = 0° (I and Q Channel, RF Input = 0 dBm, Balun and Cable Losses of Approximately 2 dB Not Accounted for in Plot)
–145 14 TEMP = +25°C TEMP = –40°C –146 12 –147 10 ) Hz TEMP = +85°C –148 Bm) 8 Bm/ d d ( B ( E –149 1d IS P 6 O NO –150 4 –151
1
2
1 0 014 04699-
–152
04699-
0 700 750 800 850 900 950 1000 700 750 800 850 900 950 1000 RF FREQUENCY (MHz) FREQUENCY (MHz)
Figure 11. Output Noise Floor vs. Frequency, Maximum Gain, Figure 14. Output 1 dB Compression Point vs. Frequency and Temperature, No RF Carrier, Phase Setpoint = 0° Maximum Gain, Phase Setpoint = 0° Rev. C | Page 7 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