Data Sheet

ADCA3280

TYPICAL PERFORMANCE CHARACTERISTICS

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Rev. 0 | 9 of 18

DOCSIS 3.1 DOWNSTREAM PERFORMANCE

185× ITU-T J.83B, SCQAM 6 MHz channels from 108 MHz to 1218 MHz. In Figure 11 to Figure 20, the performance at lower output powers is

limited by the test equipment and is not indicative of the noise performance of the device. Data is presented with both 13 dB and 18 dB tilt from

lowest to highest channels. Results are not corrected for system contributions. Using the downstream schematic and bill of materials (BOM) per

the Recommended Applications Circuit and BOM section. VDD = 21 V, IDD = 540 mA, TPADDLE = 35°C, and ZS = ZL = 75 Ω, unless otherwise

noted.

Figure 11. NPR vs. Frequency over TCP, 18 dB Tilt

Figure 12. NPR vs. TCP over Frequency, 18 dB Tilt

Figure 13. NPR vs. Frequency over TCP, 13 dB Tilt

Figure 14. NPR vs. TCP over Frequency, 13 dB Tilt