XLH525133.330000I Datasheet XLH526024.000000I, XLH526025.000000I, XLH526125.000000I | P4-P6

FXO-HC52 Series

Page 4 of 15

If 30% to 70% times are used, Rise and Fall times change to 2 nS from 0.75 to 180MHz

If 20% to 80% times are used, Rise and Fall times change to 2.5 nS from 0.75 to 160MHz

Output Wave Characteristics

Parameters

Symbol

Condition

Maximum Value

(unless otherwise noted)

Output LOW Voltage V

OL

0.75 to 160 MHz

160+ to 180 MHz

10% V

DD

20% V

DD

Output HIGH Voltage V

OH

0.75 to 160 MHz

160+ to 180 MHz

90% V

DD

MIN

80% V

DD

MIN

Output Symmetry (See Drawing Below) @ 50% V

DD

Level 45% ~ 55%

Output Enable

(PIN # 1)

Voltage V

IH

≥ 70% V

DD

Output Disable

(PIN # 1)

Voltage V

IL

≤ 30% V

DD

Cycle Rise Time (See Drawing Below) T

R

0.75 to 160 MHz

160+ to 180 MHz

3.5 nS

(10%~90%)

2.5 nS

(20%~80%)

Cycle Fall Time

(See Drawing Below) T

F

0.75 to 160 MHz

160+ to 180 MHz

3.5 nS

(90%~10%)

2.5 nS

(80%~20%)

20% to 80%

10% to 90%

0V to V

Rise Time

10% - 90%

90% - 10%

Fall Time

Times

80 - 20

50% V

On Time

Off Time

1/2 Period

Period

Ideally, Symmetry should be 50/50 -- Other expressions are 45/55 or 55/45

1/2 Period

Rise Time / Fall Time Measurements

Oscillator Symmetry

70 - 30

Times

30% to 70%

DD

FXO-HC52 Series

Page 5 of 15

Jitter is frequency dependent. Below are typical values at select frequencies.

Phase Jitter is integrated from HP3048 Phase Noise Measurement System; measured directly into 50 ohm input; V

DD

= 2.5V.

TIE

was measured on LeCroy LC684 Digital Storage Scope, directly into 50 ohm input, with Amherst M1 software; V

DD

= 2.5V.

Per MJSQ spec (Methodologies for Jitter and Signal Quality specifications)

Rj and Dj, measured on LeCroy LC684 Digital Storage Scope, directly into 50 ohm input, with Amherst M1 software.Per MJSQ spec

(Methodologies for Jitter and Signal Quality specifications)

Phase Jitter & Time Interval Error (TIE)

Frequency

Phase Jitter

(12kHz to 20MHz)

T I E

(Sigma of Jitter Distribution)

Units

62.5 MHz 2.1 3.1 pS RMS

106.25 MHz 1.2 3.5 pS RMS

125 MHz 1.1 2.7 pS RMS

156.25 MHz

0.8

3.7

pS RMS

Random & Deterministic Jitter Composition

Frequency

Random (Rj)

(pS RMS)

Deterministic (Dj)

(pS P-P)

Total Jitter (Tj)

(14 x Rj) + Dj

62.5 MHz 1.3 8.4 27.6 pS

106.25 MHz 1.4 8.3 27.7 pS

125 MHz 1.3 6.7 25.6 pS

156.25 MHz

1.4

9.7

29.5 pS

Phase Noise

10

-160dBc

-140dBc

-150dBc

-130dBc

-120dBc

-110dBc

-90dBc

-80dBc

-100dBc

-50dBc

-70dBc

-60dBc

-20dBc

-30dBc

-40dBc

0 dBc

-10dBc

Data Collected using HP 3048A

1M100k10k100 1k

Offset Frequency (10Hz to 40MHz)

40M10M

62.5 MHz

156.25MHz

(dBc / Hz) vs. offset frequency

2.5V Phase Noise Graphs

Four Frequencies from Jitter Tables

106.25 MHz

125MHz

62.5 MHz

156.25MHz

125MHz

62.5 MHz only to 2 MHz offset Equipment Limitation

FXO-HC52 Series

Page 6 of 15

NOTE: XPRESSO HCMOS XOs are designed to

fit on Industry Standard, 4 pad layouts

Pin Description and Recommended Circuit

Pin #

Name

Type

Function

1

E / D

1

Logic Enable / Disable Control of Output (0 = Disabled)

2 GND Ground Electrical Ground for V

DD

3 Output Output HCMOS Oscillator Output

4

V

DD

2

Power Power Supply Source Voltage

Test

Points

N. C.

Hi Z

No Connection (Factory Use ONLY)

NOTES:

1

Includes pull-up resistor to V

DD

to provide output when the pin (1) is No Connect.

2

Installation should include a 0.01µF bypass capacitor placed between V

DD

(Pin 4) and GND (Pin 2) to minimize power supply line noise.

E / D V

DD

N. C.

GND Output

Terminations as viewed from the Top

Enable / Disable Control

Pin # 1 (state) Output (Pin # 3)

OPEN

(No Connection)

ACTIVE Output

“1” Level V

IH

≥70% V

DD

ACTIVE Output

“0” Level V

IL

≤ 30% V

DD

High Impedance

2

TP

1

3

4

TP

Soldering Reflow Profile (2 times Maximum at 260°C for 10 seconds MAX)

25°C

160°C

180°C

225°C

260°C

10 Seconds Max

within 5°C of 260°C peak

Ramp Down

Not to exceed 6°C/s

Ramp-Up

3°C/s Max

p

t

120 ± 20 Seconds

In Pre-heating Area

Above 225°C Reflow Area

50±10 Seconds

400 Seconds MAX from +25°C to 260°C peak

GND

E/D

HCMOS LOAD

(15 pF)

N C

# 4

# 3# 2

# 1

OUT

0.01 F

DD

V

N C

XLH525133.330000I

XLH525133.330000I

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