ABX0027TSC - Abracon Corporation - Datasheet.Directory

Preliminary ABX0027T/37T

Low Power 3 Outputs XO 10MHz to 52MHz

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1

FEATURES

• 3 CMOS outputs with OE tri-st ate control

• Low current consumption:

ABX0027T: <4.5mA @ 27MHz with standard

CMOS buffer (3. 3V)

ABX0037T: <3.0mA @ 27MHz with CMOS

compatible Clipped buffer, offering

the lowe st current consum ption

(3.3V)

• 10 to 52MHz fundamental crystal input.

• Low phase noise (-130 dBc @ 10kHz offset).

• Low jitter (RMS): 2.5ps period jitter.

• 12mA drive capability at TTL output.

• 1.62V to 3.63V DC operation.

• Available in 8 pin SOIC.

DESCRIPTION

The ABX0027T/-37T form a low cost family of XO

IC’s, designed to replace multiple XO solutions sav-

ing the cost and board space of clock distribution

buffers. In addition, they provide among the lowest

current on the market for the 10MHz to 52MHz

range. They accept input crystals from 10 to 52MHz

(fundamental resonant mode) and provide low phase

noise (<-130dBc at 10kHz offset at 30MHz), and very

low jitter (2.5 ps RMS period jitter) outputs.

PIN ASSIGNMENT

BLOCK DIAGRAM

XTAL

OSC

XIN/FIN

XOUT CLK0

CLK1

CLK2

ABX00x7T

XIN/FIN

OE^

CLK1

GND

XOUT

VDD

CLK2

CLK0

^: Denotes internal Pull-up

Preliminary ABX0027T/37T

Low Power 3 Outputs XO 10MHz to 52MHz

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2

PIN DESCRIPTION

Name Pin # Type Description

XIN/FIN 1 I Crystal input ( 10MH z to 52MHz ) or Ref Clock input.

OE 2 I

Output Enable input . This pin has internal pull-up resistor . All outputs will be

tri-stated when low .

CLK1 3 O Output clock.

GND 4 P Ground.

CLK2 5 O Output clock.

VDD 6 P Power supply.

CLK0 7 O Output clock.

XOUT 8 I Crystal output.

ELECTRICAL SPECIFICATIONS

1. Absolute Maximum Ratings

PARAMETERS SYMBOL MIN. MAX. UNITS

Supply Voltage VDD 4.6 V

Input Voltage, dc VI -0.5 VDD+0.5 V

Output Voltage, dc VO -0.5 VDD+0.5 V

Storage Temperature TS -65 150

°C

Ambient Operating T emperature* TA -40 85 °C

Junction Temperature TJ 125

°C

Lead Temperature ( soldering, 10s) 260 °C

ESD Protection, Human Body Model 2 kV

Exposure of the d evice under conditions beyond the limits specified by Maximum Ratings for extended periods may cause pe rmanent damage to the

device and affect product reliability. These conditions represent a stress rating on ly, and functional operations of the device at these or any other

conditions above the operational limits noted in this spec ification is not im plied.

* Note: Operating Temperature is guaranteed by design for all parts (COMMERCIAL and INDUSTRIAL ), but tested for COMMERCIAL grade only.

2. AC Electrical Specifications

PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS

Input Crystal F requency 10 52 MHz

Settling time At power-up

(VDD reaches 1.62V) 10 ms

0.8V ~ 2.0V with 1 0 pF load 1.15

Output Clock Rise/Fall Time 0.3V ~ 3.0V with 1 5 pF load 2.4 ns

VDD sensitivity Frequency vs. VDD +/- 10 % 0.8 0.8 ppm

Output Clock Duty Cycle Measured @ 50% VDD 45 50 55 %

Short Circuit Current ±50 mA

Preliminary ABX0027T/37T

Low Power 3 Outputs XO 10MHz to 52MHz

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3

3. Jitter and Phase Noise Specifications

PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS

RMS Period Jitter

(1 sigma – 1000 samp les) With capacitive deco upling

between VDD and GND. 2.1 2.5 ps

Phase Noise rela tive to carrier 30M Hz @100Hz offset -80 dBc/Hz

Phase Noise rela tive to carrier 30M Hz @1kHz offset -110 dBc/Hz

Phase Noise rela tive to carrier 30M Hz @10kHz offset -130 dBc/Hz

Phase Noise rela tive to carrier 30M Hz @100kHz offset -138 dBc/Hz

Phase Noise rela tive to carrier 30M Hz @1MHz offset -145 dBc/Hz

4. DC Specifications

PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS

At 10MHz, Clo ad=15pF 2.0 / 1.5 2.5 / 2 .0

At 13.5MHz, Cload=1 5pF 2.4 / 1.6 3.0 / 2.0

At 17.7MHz, Cload=1 5pF 3.0 / 2.0 3.5 / 2.5

At 27MHz, Clo ad=15pF 4.0 / 2.5 4.5 / 3 .0

Supply Current, D ynamic,

with Loaded O utputs

(at VDD = 3.3V)

Respectively for PLL60 0

-27T/-37T

IDD

At 48MHz, Clo ad=15pF 7.0 / 4.0 7.5 / 4 .5

Supply Current in tri-stat e IDD Output disabled 520 µA

Operating Volt age VDD 1.62 3.63 V

-27T IOH = -12mA(1) (3.3V) 2.4 V

Output High Voltage VOH -37T(1), IOH = -12mA(1) (3.3V) 2.4 2.9 V

-27T IOL = 12mA(1) (3.3V) 0.4 V

Output Low Voltage VOL -37T(1), IOL = 12mA(1) (3.3V) 0.32 0.4 V

Output High Voltage at

CMOS level (ABX0027T) VOHC IOH = -4mA VDD – 0.4 V

Output drive current

(ABX0027T) At TTL level (3.3V) 12 17 mA

(1): ABX0037T has non-standard CMOS VOH and VOL levels for lower c urrent consumption, but meets CMOS input stage needs. ABX0037 T

should be used to drive pure capacitiv e loads only.

5. Crystal Specifications

PARAMETERS SYMBOL MIN. TYP. MAX. UNITS

Crystal Resonator Freque ncy FXIN 10 52 MHz

Crystal Loading Rat ing CL (xtal) 8.5 pF

Maximum Sustainable Dr ive Level 200 µW

Operating Drive Level 50 µW

C0 (for frequencies below 30MHz) 5 pF

C0 (for frequencies above 30MHz) 4 pF

ESR RS 30 Ω

Note: A de tailed crystal specification documen t is also available for th is part

Preliminary ABX0027T/37T

Low Power 3 Outputs XO 10MHz to 52MHz

30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4

PACKAGE INFORMATION

ORDERING INFORMATION

Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information fur-

nished by Abraco n is believed to be accu rate and reliable . However, Abraco n makes no guarantee or warranty concerning the accu racy of said info r-

mation and shall not be responsible for any loss o r damage of whatever na ture resulting from the use o f, or reliance upon this p roduct.

LIFE SUPPORT POLICY : Abracon’s products are n ot authorized for use as critic al components in life support devices or sy stems without the exp ress

written approval of the President of Abracon Corporation .

For part ordering, please contact our Sales Department:

30332 Esperanza., R ancho Santa Margarit a, Ca 92688

Ph: 949-546-8000 Fax: 949- 546-8001

PART NUMBER

The order number for this d evice is a combination of th e following:

Device number, Packag e type and Operating tempera ture range

ABX00X7T S C

Order Number Marking Package Option

ABX0027T SC ABX0027T SC 8 pin SOIC - Tubes

ABX0027T SC-T ABX0027T SC 8 pin SOIC - Tape and Reel

ABX0037T SC ABX0037T SC 8 pin SOIC - Tubes

ABX0037T SC-T ABX0037T SC 8 pin SOIC - Tape and Reel

PART NUMBER

TEMPERATURE

C=COMMERCIAL

I=INDUSTRIAL

PACKAGE TYPE

S=SOIC

8 PIN ( dim e nsions in mm )

Narrow SOIC

Symbol Min. Max.

A 1.47 1.73

A1 0.10 0.25

B 0.33 0.51

C 0.19 0.25

D 4.80 4.95

E 3.80 4.00

H 5.80 6.20

L 0.38 1.27

e1.27 BSC