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| Preliminary ABMX0122 27MHz Multiple output XO with Audio Clock FEATURES * * 2 XO outputs at 27MHz (27MHz crystal input). Selectable Audio Clocks supporting: 32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz sampling rates 256, 384 and 512 oversampling ratios 8.192, 11.2896, 12.288, 16.9344, 16.384, 18.432, 22.5792, 24.576MHz audio frequencies On-the-fly switching of the audio frequency Power down tri-state selector. 3.3V Operating Voltage. Available in 16-Pin SSOP PACKAGE PIN CONFIGURATION XIN XOUT VDD VDD NC GND GND PDOWN^ 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 S1^ 27MHz VDD S0^ 27MHz GND ACLK S2^ ABMX0122 * * * * XIN = 27 MHz 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 DESCRIPTION The ABMX0122 is a low cost integrated XO IC with power down feature, designed to work with a fundamental 27MHz crystal to provide the most common audio clocks (8.192, 11.2896, 12.288, 16.9344, 16.384, 18.432, 22.5792, and 24.576MHz) required by sampling rates of 32kHz, 44.1kHz, 48kHz, 64kHz and 96kHz (256, 384 and 512 oversampling ratios). The wide range of audio frequencies makes it ideal for STB and MPEG Video applications. S2 0 0 0 0 1 1 1 1 S1 0 0 1 1 0 0 1 1 S0 0 1 0 1 0 1 0 1 ACLK (MHz) 8.192 11.2896 12.288 16.9344 18.432 16.384 22.5792 24.576 BLOCK DIAGRAM [S2-S0] Audio PLL ACLK PDOWN 27MHz Xin XO Xout 27MHz 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 1 Preliminary ABMX0122 27MHz Multiple output XO with Audio Clock PIN DESCRIPTIONS Name XIN XOUT VDD VDD NC GND GND PDOWN S2 ACLK GND 27MHz S0 VDD 27MHz S1 Pin # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Type I I P P I P P I I O P O I P O I Description Crystal input to be connected to fundamental parallel mode crystal. (CL=14.5pF). Crystal output connector. 3.3V power supply. 3.3V power supply. Not Connected. Ground. Ground. Digital control input. This input powers down the entire chip and tri-states all outputs when low. 60k internal pull-up. Digital control input to select audio frequency. 60k internal pull-up. Audio clock output (see selection table on page 1). Ground. 27MHz XO output. Digital control input to select audio frequency. 60k internal pull-up. 3.3V power supply. 27MHz XO output. Digital control input to select audio frequency. 60k internal pull-up. Notes: I - input pin; P - power supply/ground pin; O - output pin. 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 VDD VI VO TS TA TJ MIN. -0.5 -0.5 -65 -40 MAX. 4.6 VDD+0.5 VDD+0.5 150 85 125 260 2 UNITS 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. 30332 Esperanza., Rancho Santa Margarita, Ca 92688 Ph: 949-546-8000 Fax: 949-546-8001 www.Abracon.com 03/21/05 Page 2 Preliminary ABMX0122 27MHz Multiple output XO with Audio Clock 2. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Recommended ESR SYMBOL FXIN CL (xtal) RE CONDITIONS Parallel Fundamental Mode AT cut MIN. TYP. 27 14.5 MAX. UNITS MHz pF 30 3. General Electrical Specifications PARAMETERS Supply Current, Dynamic (with Loaded Outputs) Operating Voltage SYMBOL IDD VDD 15pF Load CONDITIONS MIN. TYP. 20 MAX. 30 3.63 UNITS mA V 2.97 3.30 4. AC Electrical Specifications PARAMETERS Input Crystal Frequency Output Clock Rise Time Output Clock Fall Time Output Clock Duty Cycle Short Circuit Current 0.8V ~ 2.0V 0.3V ~ 3.0V 2.0V ~ 0.8V 3.0V ~ 0.3V 50% VDD with with with with 10 pF load 15 pF load 10 pF load 15pF load 45 SYMBOL CONDITIONS MIN. TYP. 27 2.5 2 50 50 MAX. 1.5 4 1.5 3 55 UNITS MHz ns % mA 5. Jitter specifications PARAMETERS Cycle to Cycle Jitter Cycle to Cycle Jitter CONDITIONS Tcyc-cyc Tcyc-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 ABMX0122 27MHz Multiple output XO with Audio Clock PACKAGE INFORMATION 16 PIN SSO P ( inch ) Sym bol A A1 B C D E H L e M in. .053 .004 .008 .007 .189 .150 .228 .016 Nom . .064 .006 M ax. .069 .010 .012 .010 .197 .157 .244 .050 e B A1 C E H .193 .154 .236 .025 .025 BAS IC D A L 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 ABMX0122 PART NUMBER X X XX NONE= TUBE T=TAPE AND REEL NONE=NORMAL PACKAGE L=GREEN PACKAGE TEMPERATURE C=COMMERCIAL, I=INDUSTRIAL PACKAGE TYPE X=SSOP Order Number ABMX0122XC ABMX0122XC-T ABMX0122XCL ABMX0122XCL-T Marking ABMX0122XC ABMX0122XC ABMX0122XCL ABMX0122XCL Package Option 16-pin 16-pin 16-pin 16-pin SSOP SSOP SSOP SSOP 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 |
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