LMK6C datasheet(9/60 Pages) TI1

9 / 60 page

over Recommended Operating Conditions, Typical Temp = 25°C, Frequency output = 156.25 MHz, VDD = 3.3 V, LVCMOS

Output Capacitor load = 2.2 pF (unless otherwise specified)(7)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

Fout

Output Frequency

400

MHz

VOD

Output Voltage Swing (VOH - VOL)

AC coupled, VDD = 3.3V

525

645

765

AC coupled, VDD = 2.5V

450

555

660

AC coupled, VDD = 1.8 V

280

375

470

DC coupled, VDD = 2.5 V/ 3.3 V(1)

650

800

950

DC coupled, VDD = 1.8 V(1)

450

600

750

VOD,DIFF Differential Output peak-peak swing

2×|VOD|

Vpp

VOS

Output Common-Mode Voltage

VDD = 3.3 V(1)

1.5

1.6

1.7

VDD = 2.5 V(1)

0.825

0.9

0.975

VDD = 1.8 V(1)

0.45

0.5

0.55

tR/tF

Output Rise/Fall Time

20% to 80% of VOD,DIFF, VDD = 2.5 V/ 3.3

120

200

20% to 80% of VOD,DIFF, VDD = 1.8 V

120

200

ODC

Output Duty Cycle

VDD = 2.5 V/ 3.3V, measured between

50% points on the waveform

VDD = 1.8 V, measured between 50%

points on the waveform

LVDS Output Characteristics

Fout

Output Frequency

400

MHz

VOD

Output Voltage Swing (VOH - VOL)

Under LVDS Load condition

250

350

450

VOD,DIFF Differential Output peak-peak swing

2×|VOD|

Vpp

VOS

Output Common Mode Voltage

VDD = 2.5V/3.3 V

1.025

1.2

1.375

VDD = 1.8 V

0.80

0.9

1.0

tR/tF

Output Rise/Fall Time

20% to 80% of VOD,DIFF, VDD = 2.5V/3.3

150

250

20% to 80% of VOD,DIFF, VDD = 1.8V

150

250

ODC

Output Duty Cycle

VDD = 2.5 V/3.3 V, measured between

50% points on the waveform

VDD = 1.8V, measured between 50%

points on the waveform

HCSL Output characteristics

Fout

Output Frequency

400

MHz

VOH

Output High Voltage

DC coupled, 50 ohms to ground, VDD =

2.5 V/ 3.3 V

650

750

850

DC coupled, 50 ohms to ground, VDD =

1.8 V

460

560

660

VOL

Output Low Voltage

DC coupled, 50 ohms to ground, VDD =

2.5 V/ 3.3 V

–150

150

DC coupled, 50 ohms to ground, VDD =

1.8 V

–150

150

VOD,DIFF Differential Output peak-peak swing

2×|VO H -

VOL|

Vcross

Absolute Crossing Point Voltage

VDD = 3.3 V / 2.5 V, fout = 100 MHz

0.2

0.35

0.50

Vpp

VDD = 1.8 V, fout = 100 MHz

0.15

0.275

0.40

Vpp

Vcross-

delta

Absolute Crossing Point Voltage variation

VDD = 3.3 V / 2.5 V / 1.8 V, fout = 100

MHz

0.14

dV/dt

Output Slew Rate

50 ohms to ground; DC coupled load;

measured slew rate in +/-150mV from

Center.

V/ns

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LMK6C, LMK6D, LMK6H, LMK6P

SNAS826E – APRIL 2022 – REVISED APRIL 2024

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