Analog Devices AD9912 specifications Absolute Phase Noise Using Hstl Driver

AD9912

	10			CARRIER:		20.1MHz
	0
				SFDR:		–95dBc
	–10			FREQ. SPAN:		500kHz
				RESOLUTION BW:		300Hz
(dBm)	–20			VIDEO BW:		1kHz
	–30
	–40
POWER
	–50
	–60
SIGNAL
	–70
	–80
	–90
	–100
	–110						-009
	19.85	19.95	20.05	20.15	20.25	20.35
							06763
			FREQUENCY (MHz)

	–80
	–90
(dBc/Hz)	–100
	–110
NOISE
	–120
PHASE
	–130
	–140
	–150
	–160
	100

RMS JITTER (100Hz TO 40MHz): 99MHz: 413fs

399MHz: 222fs

399MHz

99MHz

1k 10k 100k 1M 10M 100M

FREQUENCY OFFSET (Hz)

06763-012

Figure 9. Narrow-Band SFDR at 20.1 MHz,

SYSCLK = 1 GHz (SYSCLK PLL Bypassed)

	10			CARRIER:	201.1MHz
	0
				SFDR:	–91dBc
	–10			FREQ. SPAN:	500kHz
				RESOLUTION BW: 300Hz
(dBm)	–20			VIDEO BW:	1kHz
	–30
POWER	–40
	–50
SIGNAL	–60
	–70
	–80
	–90
	–100
	–110						-010
	200.85	200.95	201.05	201.15	201.25	201.35
							06763
			FREQUENCY (MHz)

Figure 10. Narrow-Band SFDR at 201.1 MHz,

SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)

	10			CARRIER:	398.7MHz
	0
				SFDR:	–86dBc
	–10			FREQ. SPAN:	500kHz
				RESOLUTION BW: 300Hz
(dBm)	–20			VIDEO BW:	1kHz
	–30
	–40
POWER
	–50
	–60
SIGNAL
	–70
	–80
	–90
	–100
	–110						-011
	398.45	398.55	398.65	398.75	398.85	398.95
							06763
			FREQUENCY (MHz)

Figure 11. Narrow-Band SFDR at 398.7 MHz,

SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)

Figure 12. Absolute Phase Noise Using HSTL Driver,

SYSCLK = 1 GHz Wenzel Oscillator (SYSCLK PLL Bypassed)

	–80			RMS JITTER (12kHz TO 20MHz):
	–90			99MHz:		0.98ps
				399MHz: 0.99ps
(dBc/Hz)	–100
	–110
NOISE	–120
PHASE	–130						399MHz
	–140
	–150						99MHz
	–160								-013
	10	100	1k	10k	100k	1M	10M	100M
									06763
			FREQUENCY OFFSET (Hz)

Figure 13. Absolute Phase Noise Using HSTL Driver,

SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal

Generator at 83.33 MHz )

	–80			RMS JITTER (12kHz TO 20MHz):
	–90			99MHz:		1.41ps
				399MHz: 1.46ps
(dBc/Hz)	–100
	–110
NOISE	–120
PHASE	–130						399MHz
	–140
	–150						99MHz
	–160								-014
	10	100	1k	10k	100k	1M	10M	100M
									06763
			FREQUENCY OFFSET (Hz)

Figure 14. Absolute Phase Noise Using HSTL Driver,

SYSCLK = 1 GHz (SYSCLK PLL Driven by Rohde & Schwarz SMA100 Signal

Generator at 25 MHz )

Rev. D Page 11 of 40