Circuit Note

CN-0232

Rev. 0 | Page 3 of 6

R&S FSUP SIGNAL SOURCE ANALYZER

SETTINGS

RESIDUAL NOISE

(T1 WITHOUT SPURS)

SPUR LIST

SIGNAL FREQUENCY: 1.6000GHz

INT PHN (1.0k .. 30.0M): –49.1dBc

SIGNAL LEVEL: 5.44dBm

RESIDUAL PM: 0.285°

CROSS CORR MODE: HARMONIC 1

RESIDUAL FM: 3.24kHz

INTERNAL REF TUNED: INTERNAL PHASE DET

RMS JITTER: 0.4946ps

1.000MHz –83.82dBc

2.001MHz –99.68dBc

3.000MHz –89.92dBc

13.000MHz –94.70dBc

PHASE NOISE (dBc/Hz)

MARKER 1 (T1)

MARKER 2 (T1)

MARKER 3 (T1)

MARKER 4 (T1)

RF ATTEN: 5dB

1kHz

10.98633kHz

13.00011MHz

26.00002MHz

TOP –70dBc/Hz

–91.84dBc/Hz

–93.42dBc/Hz

–94.7dBc

–87.89dBc

10k

100k

1M

10M

1k

30M

–160

–170

–150

–140

–130

–120

–110

–100

–90

–80

–70

FREQUENCY OFFSET (Hz)

4

1

2

3

SPR OFF

TH 0dB

LOOP BW 300Hz

Figure 2. ADF4350 PFD Spurs at 1.6 GHz

R&S FSUP SIGNAL SOURCE ANALYZER

SETTINGS

RESIDUAL NOISE

(T1 WITHOUT SPURS)

SPUR LIST

SIGNAL FREQUENCY: 1.6000GHz

INT PHN (1.0k .. 30.0M): –53.3dBc

SIGNAL LEVEL: 1.71dBm

RESIDUAL PM: 0.174°

CROSS CORR MODE: HARMONIC 1

RESIDUAL FM: 1.846kHz

INTERNAL REF TUNED: INTERNAL PHASE DET

RMS JITTER: 0.3025ps

1000.0kHz –90.44dBc

2.000MHz –85.60dBc

3.000MHz –96.36dBc

4.000MHz –99.28dBc

PHASE NOISE (dBc/Hz)

MARKER 1 (T1)

MARKER 2 (T1)

MARKER 3 (T1)

MARKER 4 (T1)

RF ATTEN: 5dB

1kHz

1kHz

100kHz

1MHz

TOP –70dBc/Hz

–101.23dBc/Hz

–101.23dBc/Hz

–120.62dBc

–144.68dBc

10k

100k

1M

10M

1k

30M

–160

–170

–150

–140

–130

–120

–110

–100

–90

–80

–70

FREQUENCY OFFSET (Hz)

1

2

3

SPR OFF

TH 0dB

LOOP BW 300Hz

4

Figure 3. ADF4350 PFD Spurs at 1.6 GHz Using ADF4153 PLL