AD6654CBCZ datasheet(22/88 Pages) AD

22 / 88 page

AD6654

Rev. 0 | Page 22 of 88

TYPICAL PERFORMANCE CHARACTERISTICS

AIN FREQUENCY (MHz)

110

130

150

170

190

–25

°C

+25

°C

+85

°C

ENCODE = 92.16MSPS

AIN = –1dBFS

Figure 19. ADC Noise vs. Analog Frequency (46.08 MHz BW)

120

–90

ANALOG INPUT POWER LEVEL (dBFS)

110

100

–80

–70

–60

–50

–40

–30

–20

–10

dBFS

dBc

SFDR = 90dB

REFERENCE LINE

ENCODE = 92.16MSPS

AIN = 37.7MHz

TEMPERATURE = 25

°C

Figure 20. Single Tone SFDR at 37.7 MHz

–15

–30

–45

–60

–75

–90

–105

–120

–135

–150

FREQUENCY (Hz)

AIN = –1dBFS

SNR = 89dB (1.25MHz BW)

32k FFT

Figure 21. CDMA Single Tone AIN = 70 MHz; ENC = 92.16 MSPS

105

ANALOG INPUT FREQUENCY (MHz)

100

WORST OTHER SPUR

HARMONICS

(SECOND, THIRD)

100

120

140

160

180

200

ENCODE = 92.16MSPS

AIN = –1dBFS

TEMPERATURE = 25

°C

Figure 22. Harmonics vs. Analog Frequency (IF)

110

–90

ANALOG INPUT POWER LEVEL (dBFS)

100

–80

–70

–60

–50

–40

–30

–20

–10

dBFS

dBc

SFDR = 90dB

REFERENCE LINE

ENCODE = 92.16MSPS

AIN = 70MHz

TEMPERATURE = 25

°C

Figure 23. Single Tone SFDR at 70 MHz

–15

–30

–45

–60

–75

–90

–105

–120

–135

–150

FREQUENCY (Hz)

32k FFT

Figure 24. CDMA Carrier AIN = 70 MHz; ENC = 92.16 MSPS

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