Datasheet AD8022 (Analog Devices) - 9

Data Sheet AD8022 0 –20 –40 –67.2dBc –60 2ND 10dB/DIV (dBc) –80 HARMONIC DISTORTION (dBc) 3RD –100 –120
01053-025 01053-022
0 0.5 1.0 1.5 2.0 2.5 3.0 102.4 103.4 104.4 105.4 106.4 107.4 108.4 109.4 110.4 111.4 112.4 OUTPUT VOLTAGE (V p-p) FREQUENCY (kHz)
Figure 22. Distortion vs. Output Voltage, VS = ±2.5 V, Figure 25. Multitone Power Ratio: VS = ±12 V, RL = 500 Ω, G = +1, f = 1 MHz, RL = 500 Ω, RF = 0 Ω Full Rate ADSL (DMT), Upstream
+V AD8022 1/2 –66.7dBc 715
Ω
250
Ω
500
Ω
10dB/DIV (dBc) 715
Ω
AD8022 1/2
01053-026
549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3
023
FREQUENCY (kHz) –V
01053- Figure 23. Multitone Power Ratio Test Circuit Figure 26. Multitone Power Ratio: VS = ±6 V, RL = 500 Ω, Full Rate ADSL (DMT), Downstream
–66.0dBc –69.0dBc 10dB/DIV (dBc) 10dB/DIV (dBc)
01053-024 01053-027
549.3 550.3 551.3 552.3 553.3 554.3 555.3 556.3 557.3 558.3 559.3 102.4 103.4 104.4 105.4 106.4 107.4 108.4 109.4 110.4 111.4 112.4 FREQUENCY (kHz) FREQUENCY (kHz)
Figure 24. Multitone Power Ratio: VS = ±12 V, RL = 500 Ω, Figure 27. Multitone Power Ratio: VS = ±6 V, RL = 500 Ω, Full Rate ADSL (DMT), Downstream Full Rate ADSL (DMT), Upstream Rev. C | Page 9 of 16 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTIONS REVISION HISTORY SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS MAXIMUM POWER DISSIPATION ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS DMT MODULATION AND MULTITONE POWER RATIO (MTPR) CHANNEL CAPACITY AND SNR POWER SUPPLY AND DECOUPLING LAYOUT CONSIDERATIONS OUTLINE DIMENSIONS ORDERING GUIDE