ADCLK946_17 datasheet(7/12 Pages) AD

Part #	ADCLK946

Description	Six LVPECL Outputs, SiGe Clock Fanout Buffer

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Manufacturer	AD [Analog Devices]

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Data Sheet

ADCLK946

Rev. B | Page 7 of 12

TYPICAL PERFORMANCE CHARACTERISTICS

VCC = 3.3 V, VEE = 0.0 V, VICM = VREF, TA = 25°C, clock outputs terminated at 50 Ω to VCC − 2 V, unless otherwise noted.

C3

C4

C3

100mV/DIV

500ps/DIV

Figure 3. LVPECL Output Waveform @ 200 MHz

1.8

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

1.4

1.5

1.6

1.7

0

1000

2000

3000

4000

5000

FREQUENCY (MHz)

Figure 4. Differential Output Swing vs. Frequency

205

160

165

170

175

180

185

190

195

200

0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

DIFFERENTIAL INPUT VOLTAGE SWING (V)

Figure 5. Propagation Delay vs. Differential Input Voltage

C4

C3

C4

100mV/DIV

100ps/DIV

Figure 6. LVPECL Output Waveform @ 1000 MHz

189

188

187

186

185

184

183

182

–40

80

60

40

20

0

–20

TEMPERATURE (°C)

Figure 7. Propagation Delay vs. Temperature

205

165

175

185

195

0.9

3.1

2.9

2.7

2.5

2.3

2.1

1.9

1.7

1.5

1.3

1.1

DC COMMON-MODE VOLTAGE (V)

+85°C

+25°C

–40°C

Figure 8. Propagation Delay vs. Common-Mode Voltage vs. Temperature,

Input Slew Rate > 25 V/ns

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