ADRF6614-EVALZ datasheet(6/61 Pages) AD

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ADRF6614

Data Sheet

Rev. 0 | Page 6 of 61

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

10 MHz offset

−157

dBc/Hz

40 MHz offset

−157.5

dBc/Hz

Integrated Phase Noise

1 kHz to 40 MHz integration bandwidth

0.27

°rms

The FOM is computed as phase noise (dBc/Hz) –10log10(fPFD) – 20log10(fLO/fPFD). The FOM was measured across the full LO range, with fREF = 122.88 MHz and fREF power =

6.5 dBm with a 1.536 MHz fPFD. The FOM was computed at 50 kHz offset.

High performance mode, TA = 25°C, measured on LO output, fLO = 1700 MHz, ZO = 50 Ω, fREF = 122.88 MHz, fPFD = 30.72 MHz, fREF power =

4 dBm, CSCALE = 250 µA, bleed = 93.75 µA, ABLDLY = 0 ns, fractional mode loop filter, unless otherwise noted.

Table 4. Fractional Mode

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

SYNTHESIZER SPECIFICATIONS

Synthesizer specifications referenced to 1 × LO

FOM1

PREFIN = 6.5 dBm

219

dBc/Hz/Hz

REFERENCE CHARACTERISTICS

REFIN, MUXOUT pins

VCO_0

Phase Noise, Locked

fLO = 2.55 GHz

1 kHz offset

−92.5

dBc/Hz

50 kHz offset

−97.4

dBc/Hz

100 kHz offset

−109.7

dBc/Hz

1 MHz offset

−137.6

dBc/Hz

10 MHz offset

−153.6

dBc/Hz

40 MHz offset

−155.5

dBc/Hz

Integrated Phase Noise

1 kHz to 40 MHz integration bandwidth

0.36

°rms

VCO_1

Phase Noise, Locked

fLO = 2.22 GHz

1 kHz offset

−93.6

dBc/Hz

50 kHz offset

−101.8

dBc/Hz

100 kHz offset

−112.5

dBc/Hz

1 MHz offset

−140.5

dBc/Hz

10 MHz offset

−154.3

dBc/Hz

40 MHz offset

−155.3

dBc/Hz

Integrated Phase Noise

1 kHz to 40 MHz integration bandwidth

0.32

°rms

VCO_2

Phase Noise, Locked

fLO = 1.9 GHz

1 kHz offset

−94.2

dBc/Hz

50 kHz offset

−101.7

dBc/Hz

100 kHz offset

−112.4

dBc/Hz

1 MHz offset

−141.3

dBc/Hz

10 MHz offset

−155.8

dBc/Hz

40 MHz offset

−156.8

dBc/Hz

Integrated Phase Noise

1 kHz to 40 MHz integration bandwidth

0.32

°rms

VCO_3

Phase Noise, Locked

fLO = 1.6 GHz

1 kHz offset

−93.1

dBc/Hz

50 kHz offset

−99.8

dBc/Hz

100 kHz offset

−110.9

dBc/Hz

1 MHz offset

−140.2

dBc/Hz

10 MHz offset

−155.7

dBc/Hz

40 MHz offset

−157.2

dBc/Hz

Integrated Phase Noise

1 kHz to 40 MHz integration bandwidth

0.33

°rms

The FOM is computed as phase noise (dBc/Hz) − 10log10(fPFD) – 20log10(fLO/fPFD). The FOM was measured across the full LO range, with fREF = 122.88 MHz and fREF power =

6.5 dBm with a 30.72 MHz fPFD. The FOM was computed at 45 kHz offset.

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