AD9575ARUZPEC datasheet(5/16 Pages) AD

5 / 16 page

AD9575

Rev. 0 | Page 5 of 16

OUTPUT FREQUENCY SELECT

Typical (typ) value is given for VS = 3.3 V, TA = 25°C, unless otherwise noted

Table 4.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

Select Pins (SEL0/SEL1)

Logic 1 Voltage

0.83 × VS + 0.2

Logic 0 Voltage

0.33 × VS − 0.2

Logic 1 Current

190

μA

Logic 0 Current

150

μA

Pull-down to GND, pull-up to VDD, pull-up to VDD via 15 kΩ,

do not connect

CLOCK OUTPUTS

Typical (typ) value is given for VS = 3.3 V, TA = 25°C, unless otherwise noted.

Table 5.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

LVDS CLOCK OUTPUT

Termination = 100 Ω differential; default

Output Frequency

312.5

MHz

Differential Output Voltage (VOD)

250

340

450

Refer to Figure 2 for definition

Delta VOD

Output Offset Voltage (VOS)

1.125

1.25

1.375

Delta VOS

Short-Circuit Current (ISA, ISB)

Output shorted to GND

Duty Cycle

LVPECL CLOCK OUTPUT

Output Frequency

312.5

MHz

Output High Voltage (VOH)

VS – 1.5

VS –1.05

VS – 0.8

Output Low Voltage (VOL)

VS – 2.5

VS –1.75

VS – 1.7

Differential Output Voltage (VOD)

430

640

800

Refer to Figure 2 for definition

Duty Cycle

LVCMOS CLOCK OUTPUT

Output Frequency

62.5

MHz

Output High Voltage (VOH)

VS − 0.1

Output Low Voltage (VOL)

0.1

Duty Cycle

TIMING CHARACTERISTICS

Table 6.

Parameter

Min

Typ

Max

Unit

Test Conditions/Comments

LVDS

Termination = 100 Ω differential; CLOAD = 0 pF

Output Rise Time, tRL

150

200

300

20% to 80%, measured differentially

Output Fall Time, tFL

150

200

300

80% to 20%, measured differentially

LVPECL

Termination = 200 Ω differential; CLOAD = 0 pF

Output Rise Time, tRL

180

250

300

20% to 80%, measured differentially

Output Fall Time, tFL

180

250

300

80% to 20%, measured differentially

LVCMOS

Termination = 50 Ω to 0 V; CLOAD = 5 pF

Output Rise Time, tRC

0.50

0.70

1.10

20% to 80%; CLOAD = 5 pF

Output Fall Time, tFC

0.50

0.70

1.10

80% to 20%; CLOAD = 5 pF

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