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©2020 Renesas Electronics Corporation

February 19, 2020

9SQL4952/9SQL4954/9SQL4958 Datasheet

1 Guaranteed by design and characterization, not 100% tested in production.

2 Control input must be monotonic from 20% to 80% of input swing.

3 Time from deassertion until outputs are > 200mV.

4 Contact the factory for other frequencies.

1 Measured from single-ended waveform.

2 Measured from differential waveform.

3 Measured from -150 mV to +150 mV on the differential waveform (derived from REFCLK+ minus REFCLK-). The signal must be monotonic through

the measurement region for rise and fall time. The 300mV measurement window is centered on the differential zero crossing.

4 Measured at crossing point where the instantaneous voltage value of the rising edge of REFCLK+ equals the falling edge of REFCLK-.

SS Modulation

Frequency

fMOD

Triangular modulation.

30

31.6

33

kHz

1

OE# Latency

tLATOE#

DIF start after OE# assertion.

DIF stop after OE# deassertion.

12

3

clocks

1,3

Tdrive_PD#

tDRVPD DIF output enable after PD# de-assertion.

300

μs1,3

Fall Time

tF

Fall time of single-ended control inputs.

5

ns

1,2

Rise Time

tR

Rise time of single-ended control inputs.

5

ns

1,2

Table 7. BCLK Low-Power HCSL Outputs

Parameter

Symbol

Conditions

Minimum Typical

Maximum Units

Notes

Slew Rate

Trf

Scope averaging on, fast setting.

2

2.7

4

V/ns

2,3

Scope averaging, slow setting.

1

1.9

3

V/ns

2,3

Crossing Voltage (abs)

Vcross_abs

Scope averaging off.

250

409

550

mV

1,4,5

Crossing Voltage (var)

Δ-Vcross

Scope averaging off.

14

140

mV

1,4,9

Avg. Clock Period Accuracy

TPERIOD_AVG

Devices have 0 ppm synthesis error.

The maximum occurs with -0.5%

SSC.

0

0

+2500

ppm

2,10,12,13

Absolute Period

TPERIOD_ABS

Includes jitter and spread spectrum

modulation.

9.95

10

10.0503

ns

2,6

Jitter, Cycle to Cycle

tjcyc-cyc

16

50

ps

2

Voltage High

VHIGH

Statistical measurement on

single-ended signal using

oscilloscope math function (scope

averaging on).

660

761

850

mV

1

Voltage Low

VLOW

-150

-7

150

mV

1

Absolute Maximum Voltage

VMIN

Measurement on single-ended signal

using absolute value (scope

averaging off).

819

1150

mV

1,7,15

Absolute Minimum Voltage

VMAX

-300

-46

1,8,15

Duty Cycle

tDC

45

49

55

%

2

Slew Rate Matching

ΔTrf

Single-ended measurement.

6

20

%

1,14

Skew, Output to Output

tsk3

Averaging on, VT = 50%.

12

50

ps

2

Table 6. Input/Supply/Common Parameters – Normal Operating Conditions (Cont.)

Parameter

Symbol

Conditions

Minimum

Typical

Maximum

Units

Notes