Preliminary ABX0027T/37T Low Power 3 Outputs XO 10MHz to 52MHz PIN ASSIGNMENT FEATURES • • XIN/FIN 1 OE^ 2 CLK1 3 GND 4 ABX00x7T • • • • • • 3 CMOS outputs with OE tri-state 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 lowest current consumption (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. 8 XOUT 7 CLK0 6 VDD 5 CLK2 ^: Denotes internal Pull-up DESCRIPTION The ABX0027T/-37T form a 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, 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. BLOCK DIAGRAM XIN/FIN XOUT CLK0 XTAL OSC CLK1 CLK2 OE 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 Preliminary ABX0027T/37T Low Power 3 Outputs XO 10MHz to 52MHz PIN DESCRIPTION Name Pin # Type Description XIN/FIN 1 I OE 2 I CLK1 GND CLK2 VDD CLK0 XOUT 3 4 5 6 7 8 O P O P O I Crystal input ( 10MHz to 52MHz ) or Ref Clock input. Output Enable input. This pin has internal pull-up resistor. All outputs will be tri-stated when low. Output clock. Ground. Output clock. Power supply. Output clock. Crystal output. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS SYMBOL Supply Voltage Input Voltage, dc Output Voltage, dc Storage Temperature Ambient Operating Temperature* Junction Temperature Lead Temperature (soldering, 10s) ESD Protection, Human Body Model 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 Settling time Output Clock Rise/Fall Time VDD sensitivity Output Clock Duty Cycle Short Circuit Current MIN. TYP. 10 At power-up (V DD reaches 1.62V) 0.8V ~ 2.0V with 10 pF load 0.3V ~ 3.0V with 15 pF load Frequency vs. V DD +/- 10% Measured @ 50% V DD 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 ABX0027T/37T Low Power 3 Outputs XO 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 V DD 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 (at VDD = 3.3V) Respectively for PLL600 -27T/-37T I DD Supply Current in tri-state Operating Voltage I DD V DD Output High Voltage V OH Output Low Voltage V OL Output High Voltage at CMOS level (ABX0027T) Output drive current (ABX0027T) (1): V OHC CONDITIONS MIN. TYP. At 10MHz, Cload=15pF At 13.5MHz, Cload=15pF At 17.7MHz, Cload=15pF At 27MHz, Cload=15pF At 48MHz, Cload=15pF Output disabled 2.0 2.4 3.0 4.0 7.0 1.62 2.4 2.4 -12mA (1) -27T I OH = (3.3V) -37T (1) , I OH = -12mA (1) (3.3V) -27T I OL = 12mA (1) (3.3V) -37T (1) , I OL = 12mA (1) (3.3V) I OH = -4mA / / / / / 1.5 1.6 2.0 2.5 4.0 MAX. 2.5 / 2.0 3.0 / 2.0 3.5 / 2.5 4.5 / 3.0 7.5 / 4.5 520 3.63 2.9 0.32 0.4 0.4 V DD – 0.4 At TTL level (3.3V) UNITS mA µA V V V V V V 12 17 mA ABX0037T has non-standard CMOS VOH and VOL levels for lower current consumption, but meets CMOS input stage needs. ABX0037T should be used to drive pure capacitive loads only. 5. Crystal Specifications 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 MIN. F XIN C L (xtal) 10 TYP. MAX. UNITS 52 MHz pF 200 µW µW pF pF 8.5 50 RS 5 4 30 Ω 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 ABX0027T/37T Low Power 3 Outputs XO 10MHz to 52MHz PACKAGE INFORMATION 8 PIN ( dimensions 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 e E H D A 1.27 A 1 1.27 BSC C 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 ABX00X7T SC PART NUMBER TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PACKAGE TYPE S=SOIC Order Number ABX0027T SC ABX0027T SC-T ABX0037T SC ABX0037T SC-T Marking ABX0027T ABX0027T ABX0037T ABX0037T SC SC SC SC Package Option 8 pin SOIC - Tubes 8 pin SOIC - Tape and Reel 8 pin SOIC - Tubes 8 pin 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