Maxim MAX12527 manual Typical Operating Characteristics, Timing Characteristics Figure

Dual, 65Msps, 12-Bit, IF/Baseband ADC

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference), CL ≈ 10pF at digital outputs, VIN = -0.5dBFS (differen- tial), DIFFCLK/SECLK = OVDD, PD = GND, SHREF = GND, DIV2 = GND, DIV4 = GND, G/T = GND, fCLK = 65MHz, TA = -40°C to

+85°C, unless otherwise noted. Typical values are at TA = +25°C.) (Note 1)

PARAMETER	SYMBOL	CONDITIONS	MIN	TYP	MAX	UNITS
TIMING CHARACTERISTICS (Figure 5)
Clock Pulse-Width High	tCH			7.7		ns
Clock Pulse-Width Low	tCL			7.7		ns
Data-Valid Delay	tDAV			5.4		ns
Data Setup Time Before Rising	tSETUP	(Note 5)	7.0			ns
Edge of DAV
Data Hold Time After Rising Edge	tHOLD	(Note 5)	7.0			ns
of DAV
Wake-Up Time from Power-Down	tWAKE	VREFIN = 2.048V		10		ms

Note 1: Specifications ≥+25°C guaranteed by production test, <+25°C guaranteed by design and characterization.

Note 2: Specifications guaranteed by production test for ≥+25°C.

Note 3: Two-tone intermodulation distortion measured with respect to a single-carrier amplitude, and not the peak-to-average input power of both input tones.

Note 4: During power-down, D0A–D11A, D0B–D11B, DORA, DORB, and DAV are high impedance.

Note 5: Guaranteed by design and characterization.

Typical Operating Characteristics

(VDD = 3.3V, OVDD = 2.0V, GND = 0, REFIN = REFOUT (internal reference mode), CL ≈ 5pF at digital outputs, VIN = -0.5dBFS, DIFFCLK/SECLK = OVDD, PD = GND, G/T = GND, fCLK = 65MHz (50% duty cycle), TA = +25°C, unless otherwise noted.)

MAX12527

FFT PLOT (16,384-POINT DATA RECORD) FFT PLOT (32,768-POINT DATA RECORD)

	0				fCLK = 65MHz			toc01		0	fCLK = 65.00352MHz					toc02
										-10
	-20				AIN = -0.53dBFS			MAX12527			AIN = -0.506dBFS					MAX12527
										-20
					fIN = 3.00125MHz						fIN = 32.40059MHz
					SNR = 71dB					-30	SNR = 70.5dB
(dBFS)	-40				SINAD = 70.9dB				(dBFS)	-40	SINAD = 70.2dB
					THD = -94dBc						THD = -86.9dBc
										-50
AMPLITUDE					SFDR = 93.6dBc				AMPLITUDE		SFDR = 88.7dBc
	-60									-60					HD3
										-70
	-80	HD2		HD3						-80	HD2
										-90
	-100									-100
										-110
	-120									-120
	0	5	10	15	20	25	30	35		0	5	10	15	20	25	30
		ANALOG INPUT FREQUENCY (MHz)									ANALOG INPUT FREQUENCY (MHz)

FFT PLOT (32,768-POINT DATA RECORD)

	0				fCLK = 65.00352MHz			toc03
	-10
					fIN = 70.00852MHz			MAX12527
	-20
					AIN = -0.506dBFS
	-30				SNR = 70.1dB
(dBFS)	-40				SINAD = 69.8dB
					THD = -82.1dBc
	-50
					SFDR = 82.4dBc
AMPLITUDE
	-60
	-70		HD2		HD3
	-80
	-90
	-100
	-110
	-120
	0	5	10	15	20	25	30

ANALOG INPUT FREQUENCY (MHz)

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