AD9277 datasheet(18/49 Pages) AD

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AD9277

Rev. 0 | Page 17 of 48

CW DOPPLER MODE

fRF = 2.5 MHz at −3 dBFS, f4LO = 10 MHz, RS = 50 Ω, LNA gain = 21.3 dB, LNA bias = high, all CW channels enabled, phase rotation 0°.

1.2

1.0

0.8

0.6

0.4

0.2

–0.2

–0.4

–0.6

–0.8

–1.0

–1.2

100

10k

BASEBAND FREQUENCY (Hz)

Figure 23. Quadrature Phase Error vs. Baseband Frequency

0.10

0.08

0.06

0.04

0.02

–0.02

–0.04

–0.06

–0.08

–0.10

100

10k

BASEBAND FREQUENCY (Hz)

Figure 24. Quadrature Amplitude Imbalance vs. Baseband Frequency

140

142

144

146

148

150

152

154

156

158

160

162

164

166

–20

–18

–16

–14

–12

–10

–8

–6

–4

–2

INPUT LEVEL (dBFS)

1kHz OFFSET

5kHz OFFSET

Figure 25. Output-Referred SNR vs. Input Level

175

170

165

160

155

150

145

1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000

BASEBAND FREQUENCY (Hz)

CH A + B + C + D + E + F + G + H

CH A + B + C + D

CH A + B

CH A

Figure 26. Small-Signal Dynamic Range

1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000

BASEBAND FREQUENCY (Hz)

Figure 27. Noise Figure vs. Baseband Frequency

130

135

140

145

150

155

160

165

1000 2000 3000 4000 5000 6000 7000 8000 9000 10,000

BASEBAND FREQUENCY (Hz)

Figure 28. Output-Referred SNR vs. Baseband Frequency

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