SEMICONDUCTOR TECHNICAL DATA The MPC9108 is a multiple CMOS output clock synthesizer targeted for disk drive applications. The device interfaces to a 20MHz crystal as its frequency source. From this source the device provides a buffered copy of the 20MHz clock as well as synthesized 40MHz and 50MHz output clocks. • • • • MULTIPLE OUTPUT CLOCK SYNTHESIZER Fully Integrated PLL Fully Integrated Crystal Oscillator Low cost, low jitter design Low cost 8–lead SOIC packaging In addition to the output clock frequencies, the MPC9108 also offers a lock indicator output. When the internal PLL achieves phase and frequency lock the CLK_LOCK signal will go HIGH. The pin will remain HIGH unless the PLL loses lock due to input clock or power supply disturbances. The XTALIN pin (pin 1) can be over–driven with a standard 5V CMOS signal. When an externally generated reference is used the XTALOUT pin should be left open. The MPC9108 operates from a 5.0V supply across the commercial temperature range of 0°C to 70°C. The 8–lead SOIC package is used to optimize board space efficiency as well as minimizing cost. D SUFFIX PLASTIC SOIC CASE 751–03 Pinout: 8–Lead SOIC (Top View) XTALIN 1 8 XTALOUT VDD 2 7 CLK_LOCK GND 3 6 CLK2 CLK1 4 5 CLK3 Pin Descriptions Pin Name Pin Number I/O Function XTALIN 1 I 20MHz Crystal Connection, External Reference Point VDD 2 – +5V Power Supply GND 3 – Ground CLK1 4 O 20MHz Output, Buffer Xtal Output CLK2 5 O 50MHz Output, PLL Controlled CLK3 6 O 40MHz Output, PLL Controlled CLK_LOCK 7 O HIGH When PLL is Locked XTALOUT 8 O Crystal Oscillator Connection This document contains information on a new product. Specifications and information herein are subject to change without notice. 1/97 Motorola, Inc. 1997 1 REV 0 MPC9108 BLOCK DIAGRAM 1 Xtal Osc CLK1 8 PLL 200MHz ÷4 CLK3 ÷5 CLK2 CLK_LOCK MAXIMUM RATINGS* Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) –0.5 to +7.0 V VIN Input Voltage –0.5 to +7.0 V TA Operating Temperature Range (In Free-Air) 0 to +70 °C TA Ambient Temperature Range (Under Bias) –55 to +125 °C TSTG Storage Temperature Range –65 to +150 °C * Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. DC CHARACTERISTICS (0°C < TA < 70°C; VDD = 5V ±10%; Unless Otherwise Stated) Symbol Characteristic Min Typ Max Unit Condition 0.8 V VDD = 5V V VDD = 5V –5 µA VIN = 0.5V VIL Input Low Voltage VIH Input High Voltage IIL Input Low Current IIH Input High Current 5 µA VIN = VDD VOL Output Low Voltage CLKn 0.4 V IOL = 4mA VOL Output Low Voltage CLK_LOCK 0.4 V IOL = 10mA VOH Output High Voltage V IOH = –30mA IDD Supply Current FD Output Frequency Change Over Supply & Temp ISC Short Circuit Current CI Input Capacitance 2.0 0.8VDD 25 40 0.002 0.01 40 10 CL Xtal Load Capacitance 1. All clocks operating at highest frequencies. MOTOROLA 25 20 2 mA % No Load; Note 1. With Respect to Typ Freq mA Each Output Clock pF Except X1, X2 pF Pins X1, X2 TIMING SOLUTIONS BR1333 — REV 5 MPC9108 AC CHARACTERISTICS (0°C < TA < 70°C; VDD = 5V ±10%; Unless Otherwise Stated) Symbol Characteristic Min Typ Max Unit tICr Input Clock Rise Time 20 ns tICf Input Clock Fall Time 20 ns tr Output Rise Time tr Rise Time tf Output Fall Time tf Fall Time dt Duty Cycle fi Input Frequency tjab Jitter Absolute tlock Output Lock Time TIMING SOLUTIONS BR1333 — REV 5 Condition 0.8 to 2.0V 1.0 2.0 ns 30pf Load 20% to 80% VDD 2.0 4.0 ns 30pf Load 2.0 to 0.8V 1.0 2.0 ns 30pf Load 20% to 80% VDD 2.0 4.0 ns 30pf Load 48/52 55/45 % 30pf Load Pins 4, 6, 5 45/55 Pins 4, 6, 5 –500 20 0.02 3 3.0 MHz 500 ps 4.0 ms MOTOROLA MPC9108 OUTLINE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751–05 ISSUE R D A NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETERS. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE MOLD PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 8 5 0.25 H E M B M 1 4 h B X 45 _ e q A C SEATING PLANE L 0.10 A1 B 0.25 M C B S A S DIM A A1 B C D E e H h L q MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.18 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 0_ 7_ Motorola reserves the right to make changes without further notice to any products herein. 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