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Data Sheet

AD9986

SPECIFICATIONS

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Rev. 0 | 9 of 37

NCO FREQUENCY SPECIFICATIONS

For the minimum and maximum values, TJ = −40°C to +120°C and ±5% of nominal supply, unless otherwise noted.

Table 9.

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

MAXIMUM NUMERICALLY CONTROLLED OSCILLATOR (NCO) CLOCK

RATE

Fine Digital Up Converter (FDUC) NCO

1.5

GHz

Course Digital Up Converter (CDUC) NCO

GHz

Fine Digital Down Converter (FDDC) NCO

1.5

GHz

Course Digital Down Converter (CDDC) NCO

GHz

MAXIMUM NCO SHIFT FREQUENCY RANGE

FDUC NCO

Channel interpolation rate must be > 1×

−750

+750

MHz

CDUC NCO

fDAC = 12 GHz, main interpolation rate must be > 1×

−6

GHz

FDDC NCO

Channel decimation rate must be > 1×

−750

+750

MHz

CDDC NCO

fADC = 6 GHz, main decimation rate must be > 1×

−3

GHz

MAXIMUM FREQUENCY SPACING BETWEEN CHANNELIZER

CHANNELS

Transmitter FDUC Channels

Maximum FDUC NCO clock rate × 0.81

1200

MHz

Receiver FDDC Channels

Maximum FDDC NCO clock rate × 0.8142

1221

MHz

1 The 0.8 factor is because the total complex pass band of the first interpolation filter is 80% of the filter input data rate.

2 The 0.814 factor is because the total complex pass band of the decimation filter is 81.4% of the filter output data rate.

JESD204B AND JESD204C INTERFACE ELECTRICAL AND SPEED SPECIFICATIONS

Nominal supplies. For the minimum and maximum values, TJ = −40°C to +120°C and ±5% of nominal supply, and for the typical values, TA =

25°C, which corresponds to TJ = 80°C, unless otherwise noted.

Table 10. Serial Interface Rate Specifications

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

JESD204B SERIAL INTERFACE RATE

Serial lane rate (bit repeat option disabled)

1.0

15.5

Gbps

Unit Interval

64.5

1000.0

JESD204C SERIAL INTERFACE RATE

Serial lane rate (bit repeat option disabled)

6.0

24.75

Gbps

Unit Interval

40.4

166.67

Table 11. JESD204 Receiver Electrical Specifications

Parameter

Test Conditions/Comments

Min

Typ

Max

Unit

JESD204B/C DATA INPUTS

SERDINx±, where x = 0 to 7

Standards Compliance

JESD204B and JESD204C

Differential Voltage, RVDIFF

800

mV p-p

Differential Impedance, ZRDIFF

At dc

Ω

Termination Voltage, VTT

AC-coupled

0.97

SYNCxOUTB± OUTPUTS1

Where x = 0 or 1

Output Differential Voltage, VOD

Driving 100 Ω differential load

400

Output Offset Voltage, VOS

DVDD1P8/2 + 0.2

SYNCxOUTB+ OUTPUT

CMOS output option

Refer to the CMOS Pin Specifications section

1 IEEE 1596.3 standard LVDS compatible.

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