IDT8V41N004I Datasheet, PDF(8/26 Page) Integrated Device Technology – Selectable external crystal or differential input source

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

IDT8V41N004I Datasheet, PDF (8/26 Pages) Integrated Device Technology – Selectable external crystal or differential input source

◁

IDT8V41N004I Data Sheet

FEMTOCLOCKÂ®NG CRYSTAL-TO-HCSL CLOCK GENERATOR

Symbol

Parameter

Test Conditions

Minimum

Typical

Maximum Units

VCROSS

Absolute Crossing Voltage;

NOTE 5, 10, 11

fOUT = 100MHz

230

550

ïVCROSS

Total Variation of VCROSS Over

all Edges; NOTE 5, 10, 12

140

PSNR

Power Supply Noise Rejection

tSLEW+

Rising Edge Rate; NOTE 8, 13

0.6

tSLEW-

Falling Edge Rate; NOTE 8, 13

0.6

Output Duty

odc

Cycle;

Q[0:3], nQ[0:3]

25MHz Crystal Input

NOTE 8

4.0

V/ns

4.0

V/ns

NOTE: Electrical parameters are guaranteed over the specified ambient operating temperature range, which is established when the device is

mounted in a test socket with maintained transverse airflow greater than 500 lfpm. The device will meet specifications after thermal equilibrium

has been reached under these conditions.

NOTE 1: Refer to Phase Noise Plot section.

NOTE 2: REF_OUT, nREF_OUT is disabled.

NOTE 3: This parameter is defined in accordance with JEDEC Standard 65.

NOTE 4: Defined as skew between outputs at the same supply voltage and with equal load conditions. Measured at the output differential

cross points.

NOTE 5. Measurement taken from a single ended waveform.

NOTE 6. Defined as the maximum instantaneous voltage including overshoot. See Parameter Measurement Information Section.

NOTE 7: Defined as the minimum instantaneous voltage including undershoot. See Parameter Measurement Information Section.

NOTE 8: Measurement taken from a differential waveform.

NOTE 9: TSTABLE is the time the differential clock must maintain a minimum Â±150mV differential voltage after rising/falling edges before it is

allowed to drop back into the VRB Â±100 mV differential range.

NOTE 10: Measured at crossing point where the instantaneous voltage value of the rising edge of Qx+ equals the falling edge of Qx-.

NOTE 11: Refers to the total variation from the lowest crossing point to the highest, regardless of which edge is crossing. Refers to all crossing

points for this measurement.

NOTE 12:Defined as the total variation of all crossing voltages of rising Qx+ and falling Qx-, This is the maximum allowed variance in Vcross

for any particular system. See Parameter Measurement Information Section.

NOTE 13: Measured from -150mV to +150mV on the differential waveform (derived from Q minus nQ). 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.

IDT8V41N004NLGI REVISION A DECEMBER 18, 2012

▷