Preliminary ABMX0127 27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video) PACKAGE PIN CONFIGURATION FEATURES • • • • DESCRIPTION The ABMX0127 is a low cost integrated XO IC designed to work with a fundamental 27MHz crystal or a clock input. In addition to a 27MHz clock reference, it provides the most common audio clocks (8.192, 11.2896, 12.288, and 24.576MHz) required by sampling rates of 32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz, making the chip ideal for STB and MPEG Video applications. XIN/FIN 1 VDD 2 GND 3 27MHz 4 ABMX0127 • 27MHz reference output (from 27MHz crystal input or clock input). Selectable Audio Clocks supporting: F s of 32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz 8.192MHz, 11.2896MHz, 12.288MHz, and 24.576MHz audio frequencies On-the-fly switching of the audio frequency. 3.3V Operating Voltage. Available in 8-Pin SOIC. 8 XOUT 7 S0^ 6 S1^ 5 ACLK Note: ^: Internal pull-up resistor. The internal pull-up resistor results in a default high value when no pull-down resistor is connected to this pin. AUDIO CLOCK SELECTION S1 S0 ACLK (MHz) 0 0 1 1 0 1 0 1 8.192 11.2896 12.288 24.576 BLOCK DIAGRAM Audio PLL [S1-S0] ACLK Xin XO 27MHz Xout 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 Preliminary ABMX0127 27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video) PIN DESCRIPTIONS Name Pin # Type XIN 1 I VDD GND 27MHz ACLK 2 3 4 5 P P O O S1 6 I S0 7 I XOUT 8 I Description Crystal input to be connected to fundamental parallel mode crystal. (C L =15 pF) or clock input. Power supply. Ground. 27MHz reference output. Audio clock output (see selection table on page 1). Digital control input to select audio frequency. 60kΩ internal pull-up. Digital control input to select audio frequency. 60kΩ internal pull-up. Crystal output. Notes: I – input pin; P – power supply/ground pin. 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. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Recommended ESR SYMBOL CONDITIONS F XIN C L (xtal) RE Parallel Fundamental Mode AT cut MIN. TYP. MAX. 27 15 UNITS MHz pF 30 Ω 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2 Preliminary ABMX0127 27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video) 3. General Electrical Specifications PARAMETERS SYMBOL Supply Current, Dynamic (with Loaded Outputs) Operating Voltage I DD CONDITIONS MIN. 15pF Load 2.97 V DD TYP. MAX. UNITS 20 30 mA 3.30 3.63 V 4. AC Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN. Input Crystal Frequency TYP. MAX. 27 0.8V ~ 2.0V with 10 pF load 0.3V ~ 3.0V with 15 pF load 2.0V ~ 0.8V with 10 pF load 3.0V ~ 0.3V with 15pF load Measured @ 1.4V Output Clock Rise Time Output Clock Fall Time Output Clock Duty Cycle Short Circuit Current 2.4 45 2.4 50 UNITS MHz 1.5 5 1.5 5 55 ±50 ns % mA 5. Jitter Specifications PARAMETERS CONDITIONS Cycle to Cycle Jitter Cycle to Cycle Jitter T cyc-cyc T cyc-cyc FREQUENCY 27MHz Audio Clock MIN. TYP. 100 150 MAX. UNITS ps ps 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 3 Preliminary ABMX0127 27MHz XO IC with Audio Clock (for Set Top Boxes & MPEG Video) PACKAGE INFORMATION 8 PIN SOIC (in mm) Symbol A A1 B C D E H L e Min. Max. 1.47 1.73 0.10 0.25 0.33 0.51 0.19 0.25 4.80 4.95 3.80 4.00 5.80 6.20 0.38 1.27 1.27 BSC E H D A A1 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 ABMX0127 X X XX NONE= TUBE T=TAPE AND REEL PART NUMBER NONE=NORMAL PACKAGE L=GREEN PACKAGE TEMPERATURE C=COMMERCIAL, I=INDUSTRIAL PACKAGE TYPE S=SOIC Order Number Marking Package Option ABMX0127SC ABMX0127SC-T ABMX0127SCL ABMX0127SCL-T ABMX0127SC ABMX0127SC ABMX0127SCL ABMX0127SCL SOIC SOIC SOIC SOIC - Tube Tape and Reel Tube 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