PI6CX100-35 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 35 MHz 3.3V VCXO for xDSL Applications Product Features Product Description The PI6CX100-35 is a low-cost, high-performance 3.3V VCXO, designed to replace expensive VCXO modules. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3.3V input voltage to cause clocks to vary by ±120ppm. This device uses an inexpensive external pullable crystal at 35 MHz to produce the same output frequency. 3.3V operating voltage Uses an inexpensive external crystal On-chip VCXO with pull range of 240ppm VCXO tuning voltage from 0 to 3.3V 10mA output drive at CMOS levels Available in SOIC package The PI6CX100-35 is designed for xDSL applications. Product Pin Configuration Logic Block Diagram VIN X1 1 8 X2 NC 2 8-Pin 7 NC VIN 3 6 VDD GND 4 5 CLKOUT Voltage Controlled X1 Crystal Output Buffer CLKOUT Oscillator X2 W Pin Description Pin Name Pin Numbe r Type X1, X2 1, 8 I NC 2, 7 VIN 3 I GND 4 PWR CLKOUT 5 O VDD 6 PWR De s cription Crystal Connection No Connect Voltage Input to VCXO Ground Clock Output Power Supply(1) Note: 1. 0.1µF or 0.01µF bypass capacitor is required. 1 PS8577 10/04/01 PI6CX100-35 35 MHz 3.3V VCXO for xDSL Applications 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested.) Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Storage Temperature .........................................55°C to 125°C Ambient Temperature .........................................40°C to 85°C Supply Voltage VDD ................................................ 0.5V to 7V Inputs/Outputs Voltage .............................. 0.5V to VDD +0.5V Output Current .................................................................10mA Soldering Lead Temperature (10s) .................................... 260°C Junction Temperature ........................................ 50°C to 150°C DC Electrical Characteristics (Unless otherwise specified, VDD = 3.3V, fO = 35.328 MHz, VIN = 1.65V, Load = 15pF, TA = 25oC) Symbol D e s cription Te s t Condition VDD O perating Voltage VOH O utput High Voltage IOH = 12mA VOL O utput Low Voltage IOL = 12mA IOH O utput High Current VOH = VDD 0.5V IOL O utput Low Current VOL = 0.5V IDD Supply Current CL = 15pF IOZ O utput O ff- leakage RS Negative Resistance fO CL M in. Typ. M ax. 3.135 3.3 3.465 Units 2.8 V 0.5 11 4 4 mA 12 6 10 µA 80 Ω Input Frequency 35 MHz O utput Load Capacitance 15 VIN = 0V 30 pF AC Electrical Characteristics (Unless otherwise specified, fO = 35.328 MHz, Load = 15pF, TA = 25oC) Symbol Tr / Tf D e s cription Te s t Condition Rise / Fall Time 0.1VDD 0.9VDD Td Duty Cycle 0.5VDD Tj Cycle- to- Cycle Jitter CL = 15pF M in. Typ. M ax. Units 1.5 6 Ns 55 % 45 50 ps ∆f Pull Range VIN = 0 VDD ±120 ppm Lin Linearity VIN = 0.1VDD 0.9VDD ±10 % O scillator start time VDD = 0.9VDD trigger 1.5 2 10 ms PS8577 10/04/01 PI6CX100-35 35 MHz 3.3V VCXO for xDSL Applications 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Pullability Characteristics 160 140 120 100 80 60 f (ppm) 40 20 0 -20 -40 ATS -60 . . . . . . UM-5 -80 -100 -120 -140 -160 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Vc (V) Recommended Crystal Specifications D e s cription Crys tal Mode of O scillation Fundamental Frequency Range 35.328 MHz Frequency Tolerance ±20ppm Temperature plus Aging Stability ±50ppm O perating Temperature 20°C to +70°C C0 / C1 240 (max.) Load Capacitance (CL) 17pF Equivalent Series Resistance (ESR) 35 ohms (max.) Measurement Circuit VIN X1 X2 NC NC VIN VDD GND 3.3V CLKOUT 0.01µF CL = 15pF Note: 1. 0.1µF or 0.01µF bypass capacitor is required. 2. Crystal frequency is 35.328 MHz. 3 PS8577 10/04/01 PI6CX100-35 35 MHz 3.3V VCXO for xDSL Applications 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 12345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012123456789012 Plastic 8-pin SOIC Package 8 .149 .157 4.80 .189 5.00 .196 1 .053 .068 .016 REF .026 0.406 0.660 .0099 .0196 1.35 1.75 SEATING PLANE 0-8˚ .0075 .0098 0.19 0.25 .2284 .2440 5.80 6.20 .013 .020 0.330 0.508 X.XX X.XX 0.25 x 45˚ 0.50 0.40 .016 1.27 .050 .0040 0.10 .0098 0.25 .050 BSC 1.27 3.78 3.99 DENOTES DIMENSIONS IN MILLIMETERS Ordering Information Orde ring Code Package Name Package Type Ope rating Range PI6CX100- 35W W8 8- pin 150- mil SOIC Industrial Pericom Semiconductor Corporation 2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com 4 PS8577 10/04/01