AD9690 datasheet(9/79 Pages) AD

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AD9690

Data Sheet

Rev. B | Page 8 of 78

Parameter

Temperature

Min

Typ

Max

Unit

LOGIC OUTPUT (FD)

Logic Compliance

Full

CMOS

Logic 1 Voltage

Full

0.8

SPIVDD

Logic 0 Voltage

Full

Input Resistance

Full

kΩ

DIGITAL OUTPUTS (SERDOUTx±, x = 0 TO 3)

Logic Compliance

Full

CML

Differential Output Voltage

Full

360

770

mV p-p

Output Common-Mode Voltage (VCM)

AC Coupled

25°C

1.8

Short-Circuit Current (IDSHORT)

25°C

−100

+100

Differential Return Loss (RLDIFF)1

25°C

Common-Mode Return Loss (RLCM)1

25°C

Differential Termination Impedance

Full

100

120

Ω

Differential and common-mode return loss is measured from 100 MHz to 0.75 MHz × baud rate.

SWITCHING SPECIFICATIONS

AVDD1 = 1.25 V, AVDD2 = 2.5 V, AVDD3 = 3.3 V, AVDD1_SR = 1.25 V, DVDD = 1.25 V, DRVDD = 1.25 V, SPIVDD = 1.8 V, specified

maximum sampling rate for each speed grade, AIN = −1.0 dBFS, default SPI settings, TA = 25°C, unless otherwise noted.

Table 4.

AD9690-500

AD9690-1000

Parameter

Temperature

Min

Typ

Max

Min

Typ

Max

Unit

CLOCK

Clock Rate (at CLK+/CLK− Pins)

Full

0.3

GHz

Maximum Sample Rate1

Full

500

1000

MSPS

Minimum Sample Rate2

Full

300

MSPS

Clock Pulse Width High

Full

1000

500

Clock Pulse Width Low

Full

1000

500

OUTPUT PARAMETERS

Unit Interval (UI)3

Full

200

100

Rise Time (tR) (20% to 80% into 100 Ω Load)

25°C

Fall Time (tF) (20% to 80% into 100 Ω Load)

25°C

PLL Lock Time

25°C

Data Rate (NRZ)4

25°C

3.125

12.5

3.125

12.5

Gbps

LATENCY5

Pipeline Latency

Full

Clock cycles

Fast Detect Latency

Full

Clock cycles

Wake-Up Time6

Standby

25°C

Power-Down

25°C

APERTURE

Aperture Delay (tA)

Full

530

Aperture Uncertainty (Jitter, tj)

Full

fs rms

Out-of-range Recovery Time

Full

Clock Cycles

The maximum sample rate is the clock rate after the divider.

The minimum sample rate operates at 300 MSPS with L = 2 or L = 1.

Baud rate = 1/UI. A subset of this range can be supported.

Default L = 4. This number can be changed based on the sample rate and decimation ratio.

No DDCs used. L = 2, M = 1, F = 1.

Wake-up time is defined as the time required to return to normal operation from power-down mode.

AD9690 Datasheet(PDF) 9 Page - Analog Devices

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