Datasheet > W134

W134

更新时间： 2024-09-19 23:41:23

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Clocks and Buffers

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W134 数据手册

W134M/W134S

Table 13. Operating Conditions

Parameter

Description

Min.

3.135

Max.

3.465

Unit

Supply Voltage

Ambient Operating Temperature

Refclk Input Cycle Time

°C

CYCLE,IN

J,IN

[2]

Input Cycle-to-Cycle Jitter

250

Input Duty Cycle over 10,000 Cycles

CYCLE

Input Frequency of Modulation

kHz

[3]

Modulation Index for Triangular Modulation

Modulation Index for Non-Triangular Modulation

Phase Detector Input Cycle Time at PclkM & SynclkN

Initial Phase error at Phase Detector Inputs

Phase Detector Input Duty Cycle over 10,000 Cycles

0.6

[5]

0.5

–0.5

100

0.5

CYCLE,PD

ERR,INIT

CYCLE,PD

IN,PD

CYCLE,PD

Input Slew Rate (measured at 20%-80% of input voltage) for PclkM,

SynclkN, and Refclk

V/ns

I,SR

[4]

Input Capacitance at PclkM, SynclkN, and Refclk

IN,PD

[4]

∆C

Input Capacitance matching at PclkM and SynclkN

0.5

IN,PD

Input Capacitance at CMOS pins (excluding PclkM, SynclkN, and

IN,CMOS

[4]

Refclk)

Input (CMOS) Signal Low Voltage

Input (CMOS) Signal High Voltage

Refclk input Low Voltage

0.7

0.3

VDD

0.3

IL,R

DDIR

Refclk input High Voltage

0.7

IH,R

IL,PD

IH,PD

DDIR

DDIPD

Input Signal Low Voltage for PD Inputs and StopB

Input Signal High Voltage for PD Inputs and StopB

Input Supply Reference for Refclk

Input Supply Reference for PD Inputs

0.3

DDIPD

0.7

1.235

DDIPD

3.465

2.625

Notes:

2. Refclk jitter measured at V_DDIR(nom)/2.

3. If input modulation is used: input modulation is allowed but not required.

4. Capacitance measured at Freq=1 MHz, DC bias=0.9V and V_AC<100 mV.

5. The amount of allowed spreading for any non-triangular modulation is determined by the induced downstream tracking skew, which cannot exceed the skew

generated by the specified 0.6% triangular modulation. Typically, the amount of allowed non-triangular modulation is about 0.5%.

1...6 7 8910 11 12

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