Preliminary PLL501-22 27MHz Multiple Output VCXO with Audio Clock FEATURES • • 2 VCXO 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 +/- 120ppm pull range Power down tri-state selector. 3.3V Operating Voltage. No external load capacitor or varicap required. Available in 16-Pin SSOP. DESCRIPTION The PLL501-22 is a low cost integrated VCXO IC with power down feature, designed to work with a fundamental 27MHz crystal in order to provide 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 audio clock follows the pulled 27MHz signal of the VCXO. The wide pull-range makes it ideal for STB and MPEG Video applications. XIN 1 16 S1^ XOUT 2 15 27MHz VDD 3 14 VDD VDD 4 13 S0^ VIN 5 12 27MHz GND 6 11 GND GND 7 10 ACLK 8 9 PDOWN^ PLL 501-22 • • • • • PACKAGE PIN CONFIGURATION S2^ 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 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] ACLK Audio PLL Vin PDOWN Xin Xout VCXO 27MHz 27MHz 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 02/26/04 Page 1 Preliminary PLL501-22 27MHz Multiple Output VCXO with Audio Clock PIN DESCRIPTIONS Name Pin # Type Description XIN 1 I Crystal input to be connected to fundamental parallel mode crystal. (C L =9.5pF). XOUT 2 I Crystal output connector. VDD 3 P 3.3V power supply. VDD 4 P 3.3V power supply. VIN 5 I Frequency control input (0V to 3.3V). GND 6 P Ground. GND 7 P PDOWN 8 I S2 9 I ACLK 10 O Ground. Digital control input. This input powers down the entire chip and tri-states all outputs when low. 60kΩ internal pull-up. Digital control input to select audio frequency. 60kΩ internal pull-up. Audio clock output (see selection table on page 1). GND 11 P Ground. 27MHz 12 O S0 13 I VDD 14 P 27MHz VCXO output. Digital control input to select audio frequency. 60kΩ internal pull-up. 3.3V power supply. 27MHz 15 O S1 16 I 27MHz VCXO output. Digital control input to select audio frequency. 60kΩ internal pull-up. Notes: I – input pin; P – power supply/ground pin; O – output pin. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS Supply Voltage SYMBOL MIN. V DD MAX. UNITS 7 V Input Voltage, dc VI V SS - 0.5 V DD + 0.5 V Output Voltage, dc VO V SS - 0.5 V DD + 0.5 V Storage Temperature TS -65 150 °C Junction Temperature TJ 125 °C 260 °C 2 kV Lead Temperature (soldering, 10s) Input Static Discharge Voltage Protection 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. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 03/02/04 Page 2 PLL501-22 Preliminary 27MHz Multiple Output VCXO with Audio Clock 2. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating SYMBOL CONDITIONS F XIN Parallel Fundamental Mode 27 MHz At VCON = 1.65V 9.5 pF C L (xtal) Crystal Pullability Recommended ESR MIN. TYP. MAX. UNITS C 0 /C 1 (xtal) AT cut 250 - RE AT cut 30 Ω Note: Crystal Loading rating: 9.5pF is the loading the crystal sees from the VCXO chip at VCON = 1.65V. It is assumed that the crystal will be at nominal frequency at this load. If the crystal requires more load to be at nominal frequency, the additional load must be added externally. This however may reduce the pull range. 3. Voltage Control Crystal Oscillator PARAMETERS SYMBOL VCXO Stabilization Time * T VCXOSTB CONDITIONS MIN. From power valid TYP. MAX. 10 UNITS ms VCXO Tuning Range XTAL C 0 /C 1 < 250 240 ppm CLK output pullability 0V ≤ VCON ≤ 3.3V ±120 ppm Linearity 5 VCXO Tuning Characteristic 80 VCON input impedance % ppm/V 2000 kΩ 25 kHz 0V ≤ VCON ≤ 3.3V, -3dB VCON modulation BW 10 Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 4. General Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN. Supply Current, Dynamic (with Loaded Outputs) I DD Operating Voltage V DD 2.97 Ambient Operating Temperature TA 0 TYP. 15pF Load 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 3.30 MAX. UNITS TBD mA 3.63 V 70 °C Rev 03/02/04 Page 3 Preliminary PLL501-22 27MHz Multiple Output VCXO with Audio Clock 5. AC Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN. Input Crystal Frequency TYP. MAX. 27 0.8V ~ 2.0V with 10 pF load Output Clock Rise Time 3.7 2.0V ~ 0.8V with 10 pF load Measured @ 1.4V 5 1.5 3.0V ~ 0.3V with 15pF load Output Clock Duty Cycle MHz 1.5 0.3V ~ 3.0V with 15 pF load Output Clock Fall Time UNITS 45 3.7 5 50 55 ±50 Short Circuit Current ns % mA 6. Jitter specifications PARAMETERS CONDITIONS Cycle to Cycle Jitter T cyc-cyc Cycle to Cycle Jitter T cyc-cyc FREQUENCY MAX. UNITS 27MHz 100 ps Audio Clock 100 ps 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 MIN. TYP. Rev 03/02/04 Page 4 Preliminary PLL501-22 27MHz Multiple Output VCXO with Audio Clock PACKAGE INFORMATION 16 PIN SSO P ( inch ) Sym bol M in. Nom . M ax. A .053 .064 .069 A1 .004 .006 .010 B .008 - .012 C .007 - .010 D .189 .193 .197 E .150 H .228 L .016 e .154 E H D .157 .236 .244 .025 .050 A A1 C e .025 BAS IC L B ORDERING INFORMATION PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range PLL501-22 X C PART NUMBER TEMPERATURE C=COMMERCIAL PACKAGE TYPE X=SSOP Order Number PLL501-22 XC PLL501-22 XC-R Marking PLL501-22 XC PLL501-22 XC Package Option SSOP - Tube SSOP - Tape and Reel PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink 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: PhaseLink’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 PhaseLink Corporation. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 Rev 03/02/04 Page 5