Preliminary ABX0027M Dual XO with 4 CMOS Outputs 10MHz to 52MHz FEATURES * Generates 4 CMOS outputs from 2 crystal inputs * XIN1- Accepts a 10 to 52MHz crystal input and generates 1 CMOS output at the same frequency. * XIN2- Accepts a 10 to 52MHz crystal input and generates 3 CMOS outputs at the same frequency. 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 14 pin 150mil SOIC. DESCRIPTION XIN1 1 14 XOUT1 GND 2 13 N/C GND 3 12 VDD CLK2A 4 11 CLK1 VDD 5 10 GND CLK2B 6 XOUT2 7 ABX0027M * * * * * PIN ASSIGNMENT 9 CLK2C 8 XIN2 The ABX0027M is part of Abracon 's low cost family of XO IC's, designed to replace multiple XO solutions saving the cost and board space of clock distribution buffers. In addition, this product family provides among the lowest current on the market for the 10MHz to 52MHz range. They accept input crystals from 10MHz 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. BLOCK DIAGRAM XIN1 XOUT1 XTAL OSC XIN2 XOUT2 XTAL OSC CLK1 CLK2A CLK2B CLK2C 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 Preliminary ABX0027M Dual XO with 4 CMOS Outputs 10MHz to 52MHz PIN DESCRIPTION Name Pin # Type Description XIN1 GND CLK2[A:C] VDD XOUT2 XIN2 CLK1 1 2,3,10 4,6,9 5,12 7 8 11 I P O P O I O Crystal input. Ground. Buffered output from XIN2 crystal input. Power supply. Crystal output for XIN2 crystal. Crystal input. Buffered output from XIN1 crystal input. N/C XOUT1 13 14 O No connection. Crystal output for XIN1 crystal. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model SYMBOL MIN. V DD VI VO TS TA TJ -0.5 -0.5 -65 -40 MAX. UNITS 4.6 V DD +0.5 V DD +0.5 150 85 125 260 2 V V V C C C C kV Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. * 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 Input Crystal Frequency ( XIN1 and XIN2 ) Settling time Output Clock Rise/Fall Time VDD sensitivity Output Clock Duty Cycle Short Circuit Current MIN. TYP. 10 At power-up (Vdd reaches 1.62V) 0.8V ~ 2.0V with 10 pF load 0.3V ~ 3.0V with 15 pF load Frequency vs. VDD +/- 10% Measured @ 1.4V MAX. UNITS 52 MHz 10 ms 1.15 2.4 0.8 45 50 50 ns 0.8 55 ppm % mA 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2 Preliminary ABX0027M Dual XO with 4 CMOS Outputs 10MHz to 52MHz 3. Jitter and Phase Noise Specifications PARAMETERS CONDITIONS RMS Period Jitter (1 sigma - 1000 samples) Phase Noise relative to carrier Phase Noise relative to carrier Phase Noise relative to carrier Phase Noise relative to carrier Phase Noise relative to carrier MIN. With capacitive decoupling between VDD and GND. 30MHz @100Hz offset 30MHz @1kHz offset 30MHz @10kHz offset 30MHz @100kHz offset 30MHz @1MHz offset TYP. MAX. UNITS 2.1 2.5 ps -80 -110 -130 -138 -145 dBc/Hz dBc/Hz dBc/Hz dBc/Hz dBc/Hz 4. DC Specifications PARAMETERS SYMBOL Supply Current, Dynamic, with Loaded Outputs @ 3.3V Supply Current in tri-state Operating Voltage Output High Voltage Output Low Voltage Output High Voltage at CMOS level Output drive current I DD CONDITIONS MIN. TYP. XIN1 and XIN2 at 27MHz, Cload=10pF MAX. 6.0 UNITS mA 520 3.63 A V V V I DD V DD V OH V OL Output disabled I OH = -12mA (3.3V) I OL = 12mA (3.3V) 2.4 V OHC I OH = -4mA (3.3V) V DD - 0.4 V 10 mA 1.62 0.4 At TTL level (3.3V) 5. Crystal Specification PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Maximum Sustainable Drive Level Operating Drive Level C0 (for frequencies below 30MHz) C0 (for frequencies above 30MHz) ESR SYMBOL F XIN1 F XIN2 C L (xtal) MIN. TYP. 10 MAX. UNITS 52 MHz 8.5 pF 200 50 RS 5 4 30 W W pF pF Note: A detailed crystal specification document is also available for this part 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3 Preliminary ABX0027M Dual XO with 4 CMOS Outputs 10MHz to 52MHz PACKAGE INFORMATION 14 PIN Narrow SOIC ( mm ) SOIC Symbol E Min. A 1.35 1.75 A1 0.10 0.25 B 0.33 0.51 C 0.19 0.25 D 9.80 10.00 E 3.80 4.00 H 5.80 6.20 L 0.40 e H Max. D 1.27 A A1 C 1.27 BSC L B e ORDERING INFORMATION For part ordering, please contact our Sales Department: 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range ABX0027M SC TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PART NUMBER PACKAGE TYPE S=SOIC Order Number Marking Package Option ABX0027M SC ABX0027M SC-T ABX0027M SC ABX0027M SC SOIC - Tube SOIC - Tape and Reel Abracon Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Abracon is believed to be accurate and reliable. However, Abracon makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. LIFE SUPPORT POLICY: Abracon's products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of Abracon Corporation. 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 4