PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

TYPICAL PERFORMANCE CHARACTERISTICS

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AD9634	Data Sheet

	32 AVDD	31 AVDD 30 VIN+	29 VIN– 28 AVDD 27 AVDD	26 VCM 25 DNC
CLK+ 1					24 CSB
CLK+ 1					24 CSB
CLK– 2					23 SCLK
AVDD 3		AD9634			22 SDIO
OR– 4		AD9634			21 DCO+
OR– 4		TOP VIEW			21 DCO+
OR+ 5		TOP VIEW			20 DCO–
D0–/D1– (LSB) 6		(Not to Scale)			19 D10+/D11+ (MSB)
D0+/D1+ (LSB) 7					18 D10–/D11– (MSB)
DRVDD 8					17 DRVDD

	9	10 11	12 13 14 15 16
NOTES	D2–/D3–	D2+/D3+ D4–/D5–	D4+/D5+ D6–/D7– D6+/D7+	D8–/D9– D8+/D9+
NOTES

1. DNC = DO NOT CONNECT. DO NOT CONNECT TO THIS PIN.

2. THE EXPOSED THERMAL PADDLE ON THE BOTTOM OF THE PACKAGE PROVIDES THE ANALOG GROUND FOR THE PART. THIS EXPOSED PADDLE MUST BE CONNECTED TO GROUND FOR PROPER OPERATION.

Figure 3. Pin Configuration

09996-003

Table 8. Pin Function Descriptions

Pin No.	Mnemonic	Type	Description

ADC Power Supplies
8, 17	DRVDD	Supply	Digital Output Driver Supply (1.8 V Nominal).
3, 27, 28, 31, 32	AVDD	Supply	Analog Power Supply (1.8 V Nominal).
0	AGND, Exposed	Ground	Analog Ground. The exposed thermal paddle on the bottom of the
	Paddle		package provides the analog ground for the part. This exposed paddle
			must be connected to ground for proper operation.
25	DNC		Do No Connect. Do not connect to this pin.

ADC Analog
30	VIN+	Input	Differential Analog Input Pin (+).
29	VIN−	Input	Differential Analog Input Pin (−).
26	VCM	Output	Common-Mode Level Bias Output for Analog Inputs. This pin should be
			decoupled to ground using a 0.1 μF capacitor.
1	CLK+	Input	ADC Clock Input—True.
2	CLK−	Input	ADC Clock Input—Complement.

Digital Outputs
5	OR+	Output	Overrange—True.
4	OR−	Output	Overrange—Complement.
7	D0+/D1+ (LSB)	Output	DDR LVDS Output Data 0/Data 1—True (LSB).
6	D0−/D1− (LSB)	Output	DDR LVDS Output Data 0/Data 1—Complement (LSB).
10	D2+/D3+	Output	DDR LVDS Output Data 2/Data 3—True.
9	D2−/D3−	Output	DDR LVDS Output Data 2/Data 3—Complement.
12	D4+/D5+	Output	DDR LVDS Output Data 4/Data 5—True.
11	D4−/D5−	Output	DDR LVDS Output Data 4/Data 5—Complement.
14	D6+/D7+	Output	DDR LVDS Output Data 6/Data 7—True.
13	D6−/D7−	Output	DDR LVDS Output Data 6/Data 7—Complement.
16	D8+/D9+	Output	DDR LVDS Output Data 8/Data 9—True.
15	D8−/D9−	Output	DDR LVDS Output Data 8/Data 9—Complement.
19	D10+/D11+ (MSB)	Output	DDR LVDS Output Data 10/Data 11—True (MSB).
18	D10−/ D11− (MSB)	Output	DDR LVDS Output Data 10/Data 11—Complement (MSB).
21	DCO+	Output	LVDS Data Clock Output—True.
20	DCO−	Output	LVDS Data Clock Output—Complement.

Rev. B | Page 10 of 30

Data Sheet			AD9634


Pin No.	Mnemonic	Type	Description
SPI Control
23	SCLK	Input	SPI Serial Clock.
22	SDIO	Input/Output	SPI Serial Data I/O.
24	CSB	Input	SPI Chip Select (Active Low).

Rev. B | Page 11 of 30

AD9634

Data Sheet

OUTPUT CODE

AVDD = 1.8 V, DRVDD = 1.8 V, sample rate = maximum sample rate per speed grade, DCS enabled, 1.75 V p-p differential input, VIN = −1.0 dBFS, 32k sample, TA = 25°C, unless otherwise noted.

	0	170MSPS
		90.1MHz @ –1.0dBFS
	–20	SNR = 69.1dB (70.1dBFS)
		SFDR = 93dBc
(dBFS)	–40
(dBFS)	–60	SECOND					THIRD
AMPLITUDE		SECOND					THIRD
		HARMONIC					HARMONIC
	–80
	–100
	–100
	–120
	–140									004-
	0	10	20	30	40	50	60	70	80	004-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
	Figure 4. AD9634-170 Single-Tone FFT with fIN = 90.1 MHz

	0					170MSPS
						170MSPS
						185.1MHz @ –1.0dBFS
	–20					SNR = 68.5dB (69.5dBFS)
						SFDR = 86dBc
(dBFS)	–40
(dBFS)	–60
AMPLITUDE				SECOND		THIRD
	–80			HARMONIC		HARMONIC
	–80
	–100
	–100
	–120
	–140									005-
	0	10	20	30	40	50	60	70	80	005-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
	Figure 5. AD9634-170 Single-Tone FFT with fIN = 185.1 MHz

	0	170MSPS
		220.1MHz @ –1.0dBFS
	–20	SNR = 68.2dB (69.2dBFS)
		SFDR = 84dBc
(dBFS)	–40
(dBFS)	–60
AMPLITUDE			THIRD					SECOND
	–80		HARMONIC					HARMONIC
	–80
	–100
	–100
	–120
	–140									006-
	0	10	20	30	40	50	60	70	80	006-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
	Figure 6. AD9634-170 Single-Tone FFT with fIN = 220.1 MHz

	0					170MSPS
						170MSPS
						305.1MHz @ –1.0dBFS
	–20					SNR = 67.2dB (68.2dBFS)
	–20					SFDR = 86dBc
						SFDR = 86dBc
(dBFS)	–40
(dBFS)	–60
AMPLITUDE						THIRD		SECOND
	–80					HARMONIC		HARMONIC
	–80
	–100
	–100
	–120
	–140									107-
	0	10	20	30	40	50	60	70	80	107-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
	Figure 7. AD9634-170 Single-Tone FFT with fIN = 305.1 MHz

	120
		SFDR (dBFS)
	100
dBFS)	80	SNR (dBFS)
and		SNR (dBFS)
and
(dBc	60
SNR/SFDR		SFDR (dBc)
		SFDR (dBc)
	40
		SNR (dBc)
	20

007-

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

09996

INPUT AMPLITUDE (dBFS)

Figure 8. AD9634-170 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with fIN = 90.1 MHz, fS = 170 MSPS

	100
	95				SFDR (dBc)
					SFDR (dBc)
dBFS)	90
dBFS)	85
and	85
and
(dBc	80
SNR/SFDR	70
	75
	65				SNR (dBFS)
	65
	60										008-
	60	90	120	150	180	210	240	270	300	330	008-
	60	90	120	150	180	210	240	270	300	330	09996
				INPUT FREQUENCY (MHz)							09996

Figure 9. AD9634-170 Single-Tone SNR/SFDR vs. Input Frequency (fIN), fS = 170 MSPS

Rev. B | Page 12 of 30

Data Sheet

	0
	–20
dBFS)	SFDR (dBc)
dBFS)	–40
and	IMD3 (dBc)
(dBc	–60
SFDR/IMD3	–60
SFDR/IMD3	SFDR (dBFS)
	–80
	–100
	IMD3 (dBFS)
	–120	-009
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0	-009
	INPUT AMPLITUDE (dBFS)	09996

Figure 10. AD9634-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 170 MSPS

		0
		–20
	dBFS)	SFDR (dBc)
	dBFS)	–40
	and	IMD3 (dBc)
	(dBc	–60
	SFDR/IMD3	–60
	SFDR/IMD3	SFDR (dBFS)
		–80
		–100

IMD3 (dBFS)

	–120								–7.0	-010
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3								–7.0	-010
				INPUT AMPLITUDE (dBFS)						09996
Figure 11. AD9634-170 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN)
	with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 170 MSPS
	0	170MSPS
		89.12MHz @ –7.0dBFS
	–20	92.12MHz @ –7.0dBFS
		SFDR = 89dBc (96dBFS)
(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
AMPLITUDE	–100
	–100
	–120
	–140									011-
	0	10	20	30	40	50	60	70	80	011-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
Figure 12. AD9634-170 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

									AD9634
	0					170MSPS
						170MSPS
						184.12MHz @ –7.0dBFS
	–20					187.12MHz @ –7.0dBFS
						SFDR = 85dBc (92dBFS)
(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
AMPLITUDE	–100
	–100
	–120
	–140									012-
	0	10	20	30	40	50	60	70	80	012-
	0	10	20	30	40	50	60	70	80	09996
				FREQUENCY (MHz)						09996
Figure 13. AD9634-170 Two Tone FFT with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

	100
							SFDR
dBc)and	95
dBc)and	90
	90
(dBFS	85
(dBFS	80
SNR/SFDR	80
SNR/SFDR	75
	75
	70						SNR
	70
	65														013-
	40	50	60	70	80	90	100	110	120	130	140	150	160	170	013-
	40	50	60	70	80	90	100	110	120	130	140	150	160	170	09996
					SAMPLE RATE (MSPS)										09996

Figure 14. AD9634-170 Single-Tone SNR/SFDR vs. Sample Rate (fS) with fIN = 90 MHz

14000 0.531 LSB rms

16,384 TOTAL HITS

12000

	HITS	10000
	HITS	8000
	OF	8000
	OF
	NUMBER	6000
		6000
		4000

2000

Figure 15. AD9634-170 Grounded Input Histogram, fS = 170 MSPS

Rev. B | Page 13 of 30

AD9634

	0	210MSPS
		90.1MHz @ –1.0dBFS
	–20	SNR = 69.1dB (70.1dBFS)
		SFDR = 92dBc
(dBFS)	–40
(dBFS)	–60
AMPLITUDE			SECOND		THIRD
AMPLITUDE	–80		HARMONIC		HARMONIC
			HARMONIC		HARMONIC

	–100
	–120
	–140	15	30	45	60	75	90	105	015-
	0								015-
	0								09996
				FREQUENCY (MHz)					09996
	Figure 16. AD9634-210 Single-Tone FFT with fIN = 90.1 MHz
	0				210MSPS
					210MSPS
					185.1MHz @ –1.0dBFS
	–20				SNR = 68.6dB (69.6dBFS)
					SFDR = 93dBc
(dBFS)	–40
(dBFS)	–60
AMPLITUDE				SECOND		THIRD
AMPLITUDE	–80			HARMONIC		HARMONIC
				HARMONIC		HARMONIC

	–100
	–120
	–140								016-
	0	15	30	45	60	75	90	105	016-
	0	15	30	45	60	75	90	105	09996
				FREQUENCY (MHz)					09996
	Figure 17. AD9634-210 Single-Tone FFT with fIN = 185.1 MHz
	0				210MSPS
					210MSPS
					220.1MHz @ –1.0dBFS
	–20				SNR = 68.3dB (69.3dBFS)
					SFDR = 84dBc
(dBFS)	–40		SECOND
	–60		SECOND
	–60		HARMONIC
			HARMONIC
AMPLITUDE				THIRD
AMPLITUDE	–80		HARMONIC
			HARMONIC

	–100
	–120
	–140								017-
	0	15	30	45	60	75	90	105	017-
	0	15	30	45	60	75	90	105	09996
				FREQUENCY (MHz)					09996

Figure 18. AD9634-210 Single-Tone FFT with fIN = 220.1 MHz

Data Sheet

0210MSPS

305.1MHz @ –1.0dBFS

–20

SNR = 67.6dB (68.6dBFS)

SFDR = 83dBc

(dBFS)

–40

–60

SECOND

THIRD

AMPLITUDE

–80

HARMONIC

–100

–120

–140

100-

105

09996

FREQUENCY (MHz)

Figure 19. AD9634-210 Single-Tone FFT with fIN = 305.1 MHz

120

SFDR (dBFS)

100

dBFS)

SNR (dBFS)

and

(dBc

SNR/SFDR

SFDR (dBc)

SNR (dBc)

018-

–100

–90

–80

–70

–60

–50

–40

–30

–20

–10

09996

INPUT AMPLITUDE (dBFS)

Figure 20. AD9634-210 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with fIN = 90.1 MHz, fS = 210 MSPS

	100				SFDR (dBc)
					SFDR (dBc)
	95
dBFS)	90
dBFS)	85
and	85
and
(dBc	80
SNR/SFDR	70				SNR (dBFS)
	75
	65
	60										019-
	60	90	120	150	180	210	240	270	300	330	019-
	60	90	120	150	180	210	240	270	300	330	09996
				INPUT FREQUENCY (MHz)							09996

Figure 21. AD9634-210 Single-Tone SNR/SFDR vs. Input Frequency (fIN), fS = 210 MSPS

Rev. B | Page 14 of 30

Data Sheet

	0
	–20
dBFS)	SFDR (dBc)
dBFS)	–40
and	IMD3 (dBc)
(dBc	–60
SFDR/IMD3	–60
SFDR/IMD3	SFDR (dBFS)
	–80
	–100
	IMD3 (dBFS)
	–120	-020
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0	-020
	INPUT AMPLITUDE (dBFS)	09996

Figure 22. AD9634-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 210 MSPS

	0
	–20
dBFS)	SFDR (dBc)
dBFS)	–40
and	IMD3 (dBc)
(dBc	–60
SFDR/IMD3	–60
SFDR/IMD3	SFDR (dBFS)
	–80
	–100
	IMD3 (dBFS)
	–120	-021
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0	-021
	INPUT AMPLITUDE (dBFS)	09996

Figure 23. AD9634-210 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 210 MSPS

0210MSPS

89.12MHz @ –7.0dBFS

–20 92.12MHz @ –7.0dBFS SFDR = 88dBc (95dBFS)

(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
	–80
	–100
	–120
	–140								022-
	0	15	30	45	60	75	90	105	022-
	0	15	30	45	60	75	90	105	09996
				FREQUENCY (MHz)					09996

Figure 24. AD9634-210 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

							AD9634
	0					210MSPS
						210MSPS
						184.12MHz @ –7.0dBFS
	–20					187.12MHz @ –7.0dBFS
						SFDR = 89dBc (96dBFS)
(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
	–80
	–100
	–120
	–140								023-
	0	15	30	45	60	75	90	105	023-
	0	15	30	45	60	75	90	105	09996
				FREQUENCY (MHz)					09996

Figure 25. AD9634-210 Two Tone FFT with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

	100						SFDR
							SFDR
dBc)and	95
dBc)and	90
	90
(dBFS	85
(dBFS	80
SNR/SFDR	80
SNR/SFDR	75
	75
	70						SNR
	70
	65	50	60	70	80	90	100 110 120 130 140 150 160 170	180	190 200	210	-024
	40										-024
	40										09996
							SAMPLE RATE (MSPS)				09996

Figure 26. AD9634-210 Single-Tone SNR/SFDR vs. Sample Rate (fS) with fIN = 90 MHz

	16000
	16000	0.391 LSB rms
	14000	16,384 TOTAL HITS
	14000
HITSOF	12000
	12000
	10000
	10000
NUMBER	8000
	8000
	6000
	6000
	4000
	4000
	2000
	2000
	0

			N – 1		N	N + 1	-025
			N – 1		N	N + 1	-025
				OUTPUT CODE			09996

Figure 27. AD9634-210 Grounded Input Histogram, fS = 210 MSPS

Rev. B | Page 15 of 30

AD9634

Data Sheet

250MSPS

90.1MHz @ –1.0dBFS

305.1MHz @ –1.0dBFS

–20

SNR = 69.0dB (70.0dBFS)

–20

SNR = 67.4dB (68.4dBFS)

SFDR = 89dBc

SFDR = 82dBc

(dBFS)

–40

(dBFS)

–40

–60

THIRD

SECOND

–60

THIRD

SECOND

AMPLITUDE

–80

HARMONIC

–80

HARMONIC

–100

–120

–140

026-

–140

-101

100

125

100

125

09996

FREQUENCY (MHz)

Figure 28. AD9634-250 Single-Tone FFT with fIN = 90.1 MHz

Figure 31. AD9634-250 Single-Tone FFT with fIN = 305.1 MHz

250MSPS

120

185.1MHz @ –1.0dBFS

SFDR (dBFS)

–20 SNR = 68.7dB (69.7dBFS)

100

SFDR = 87dBc

(dBFS)

anddBFS)

–60

–40

SNR (dBFS)

AMPLITUDE

THIRD

SECOND

(dBcSNR/SFDR

HARMONIC

–80

HARMONIC

SFDR (dBc)

–100

SNR (dBc)

–120

–140

100

125

09996-027

–90

–80

–70

–60

–50

–40

–30

–20

–10

09996-029

–100

FREQUENCY (MHz)

INPUT AMPLITUDE (dBFS)

Figure 29. AD9634-250 Single-Tone FFT with fIN = 185.1 MHz

Figure 32. AD9634-250 Single-Tone SNR/SFDR vs. Input Amplitude (AIN) with

fIN = 90.1 MHz, fS = 250 MSPS

250MSPS

100

220.1MHz @ –1.0dBFS

–20

SNR = 68.3dB (69.3dBFS)

SFDR (dBc)

SFDR = 91dBc

dBFS)and

(dBFS)

–60

–40

AMPLITUDE

–100

SECOND

THIRD

(dBcSNR/SFDR

HARMONIC

–80

–120

SNR (dBFS)

–140

09996-028

09996-030

100

125

120

150

180

210

240

270

300

330

FREQUENCY (MHz)

INPUT FREQUENCY (MHz)

Figure 30. AD9634-250 Single-Tone FFT with fIN = 220.1 MHz

Figure 33. AD9634-250 Single-Tone SNR/SFDR vs. Input Frequency (fIN),

fS = 250 MSPS

Rev. B | Page 16 of 30

Data Sheet

	0
	–20
dBFS)	SFDR (dBc)
dBFS)	–40
and	IMD3 (dBc)
(dBc	–60
SFDR/IMD3	–60
SFDR/IMD3	–80
	–80
	SFDR (dBFS)
	–100
	IMD3 (dBFS)
	–120	-031
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0	-031
	INPUT AMPLITUDE (dBFS)	09996

Figure 34. AD9634-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz, fS = 250 MSPS

	0
	–20
dBFS)	SFDR (dBc)
dBFS)	–40
and	IMD3 (dBc)
(dBc	–60
SFDR/IMD3	–60
SFDR/IMD3	SFDR (dBFS)
	–80
	–100
	IMD3 (dBFS)
	–120	-032
	–90.0 –81.7 –73.4 –65.1 –56.8 –48.5 –40.2 –31.9 –23.6 –15.3 –7.0	-032
	INPUT AMPLITUDE (dBFS)	09996

Figure 35. AD9634-250 Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz, fS = 250 MSPS

250MSPS

89.12MHz @ –7.0dBFS –20 92.12MHz @ –7.0dBFS

SFDR = 88dBc (95dBFS)

(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
	–80
	–100
	–120
	–140						033-
	0	25	50	75	100	125	033-
	0	25	50	75	100	125	09996
			FREQUENCY (MHz)				09996

Figure 36. AD9634-250 Two-Tone FFT with fIN1 = 89.12 MHz, fIN2 = 92.12 MHz

AD9634

	0	250MSPS
		250MSPS
		184.12MHz @ –7.0dBFS
	–20	187.12MHz @ –7.0dBFS
		SFDR = 88dBc (95dBFS)
(dBFS)	–40
(dBFS)	–60
AMPLITUDE	–80
	–80
	–100
	–120
	–140						034-
	0	25	50	75	100	125	034-
	0	25	50	75	100	125	09996
			FREQUENCY (MHz)				09996

Figure 37. AD9634-250 Two Tone FFT with fIN1 = 184.12 MHz, fIN2 = 187.12 MHz

	100
						SFDR
dBc)and	95
dBc)and	90
	90
(dBFS	85
(dBFS	80
SNR/SFDR	80
SNR/SFDR	75
	75
	70					SNR
	70
	65												035-
	40	60	80	100	120	140	160	180	200	220	240	260	035-
	40	60	80	100	120	140	160	180	200	220	240	260	09996
					SAMPLE RATE (MSPS)								09996

Figure 38. AD9634-250 Single-Tone SNR/SFDR vs. Sample Rate (fS) with fIN = 90 MHz

	16000
	16000	0.407 LSB rms
	14000	16,384 TOTAL HITS
	14000
HITSOF	12000
	12000
	10000
	10000
NUMBER	8000
	8000
	6000
	6000
	4000
	4000
	2000
	0

			N – 1		N	N + 1	-036
			N – 1		N	N + 1	-036
				OUTPUT CODE			09996

Figure 39. AD9634-250 Grounded Input Histogram, fS = 250 MSPS

Rev. B | Page 17 of 30

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