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AD9510

Data Sheet

Rev. C | Page 6 of 56

CLOCK OUTPUTS

Table 3.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

LVPECL CLOCK OUTPUTS

Termination = 50 Ω to VS − 2 V

OUT0, OUT1, OUT2, OUT3;

Differential

Output level Register 0x3C, Register 0x3D,

Output Frequency

1200

MHz

See Figure 21

Output High Voltage

VOH

VS − 1.22

VS − 0.98

VS − 0.93

Output Low Voltage

VOL

VS − 2.10

VS − 1.80

VS − 1.67

Output Differential Voltage

VOD

660

810

965

LVDS CLOCK OUTPUTS

Termination = 100 Ω differential; default

OUT4, OUT5, OUT6, OUT7;

Differential

Output level Register 0x40, Register 0x41,

3.5 mA termination current

Output Frequency

800

MHz

See Figure 22

Differential Output Voltage

VOD

250

360

450

Delta VOD

Output Offset Voltage

VOS

1.125

1.23

1.375

Delta VOS

Short-Circuit Current

ISA, ISB

Output shorted to GND

CMOS CLOCK OUTPUTS

OUT4, OUT5, OUT6, OUT7

Single-ended measurements, B outputs:

inverted, termination open

Output Frequency

250

MHz

With 5 pF load each output, see Figure 23

Output Voltage High

VOH

VS − 0.1

At 1 mA load

Output Voltage Low

VOL

0.1

At 1 mA load

TIMING CHARACTERISTICS

Table 4.

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions/Comments

LVPECL

Termination = 50 Ω to VS − 2 V; output level

Output Rise Time

tRP

130

180

20% to 80%, measured differentially

Output Fall Time

tFP

130

180

80% to 20%, measured differentially

PROPAGATION DELAY, CLK-TO-LVPECL OUT1

tPECL

Divide = Bypass

335

490

635

Divide = 2 − 32

375

545

695

Variation with Temperature

0.5

ps/°C

OUTPUT SKEW, LVPECL OUTPUTS

OUT1 to OUT0 on Same Part2

tSKP

−5

+30

+85

OUT2 to OUT3 on Same Part2

tSKP

All LVPECL OUTs on Same Part2

tSKP

130

180

All LVPECL OUTs Across Multiple Parts3

tSKP_AB

275

Same LVPECL OUT Across Multiple

Parts3

tSKP_AB

130

LVDS

Termination = 100 Ω differential; output level

current

Output Rise Time

tRL

200

350

20% to 80%, measured differentially

Output Fall Time

tFL

210

350

80% to 20%, measured differentially

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