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| Order this document by MC12061/D Crystal Oscillator The MC12061 is for use with an external crystal to form a crystal controlled oscillator. In addition to the fundamental series mode crystal, two bypass capacitors are required (plus usual power supply pin bypass capacitors). Translators are provided internally for MECL and TTL outputs. * Frequency Range = 2.0 to 20 MHz MC12061 CRYSTAL OSCILLATOR * * * Temperature Range = 0 to + 70C Single Supply Operation: +5.0 Vdc or -5.2 Vdc Three Outputs Available: 1. Complementary Sine Wave (600 mVpp typ) 2. Complementary MECL 3. Single Ended TTL SEMICONDUCTOR TECHNICAL DATA Figure 1. Block Diagram Bias Bypass 0.1 F 7 VCC AGC Filter 0.1 F 1 VCC 4 Sine Wave Output - 3 2 + 14 - 15 + 16 VCC 13 12 11 VCC MECL Output 16 1 Voltage Reg. Crystal Osc. AGC Ampl./ AGC Sine to MECL MECL to TTL Translator 10 TTL Output P SUFFIX PLASTIC PACKAGE CASE 648 6 5 Crystal 8 VEE 9 VEE Note: 0.1 F power supply pin bypass capacitors not shown. ORDERING INFORMATION Device MC12061P Operating Temperature Range TA = 0 to +70C Package Plastic TYPICAL CIRCUIT CONFIGURATIONS Note: 0.1 F power supply pin bypass capacitors not shown. +5.0 V +5.0 V +5.0 V 7 + 14 - 15 1 16 In 11 4 3 Sine Out 2 - 2 7 + 1 16 Out 11 4 2 10 3 TTL Out 7 + 1 Out - - 16 4 13 + 2 7 + 1 Out - 16 4 13 + - 3 + 14 + 15 6 5 8 9 - In MECL Out In 12 5 8 - 3 - 14 + 15 6 In 5 8 MECL Out 12 - 12 13 6 MECL Out 5 8 9 10 14 + 15 6 -5.2 V Figure 2. Sine Wave Output CRYSTAL REQUIREMENTS Note: Start-up stabilization time is a function of crystal series resistance. The lower the resistance, the faster the circuit stabilizes. Figure 3. MTTL Output Figure 4. MECL Output (+5.0 V Supply) Figure 5. MECL Output (-5.2 V Supply) Characteristic Mode of Operation Frequency Range Series Resistance, R1 Maximum Effective Resistance RE(max) MC12061 Fundamental Series Resonance 2.0 MHz -- 20 MHz Minimum at Fundamental 155 ohms (c) Motorola, Inc. 1997 Rev 5 MC12061 ELECTRICAL CHARACTERISTICS Test Limits Pin Pi Under Test 1 1 11 16 Input Current IinH IinL Differential Offset Voltage Output Voltage Level Logic `1' Output Voltage V Vout VOH1 (Note 1) VOH2 Logic `0' Output Voltage VOL1 (Note 1) VOL2 Logic `1' Threshold Voltage Logic `0' Threshold Voltage Output Short Circuit Current NOTE: 0C Min - - - - - - - - - - - - 4.0 4.0 2.4 2.98 2.98 - - 3.98 3.98 - - 20 Max - - - - - - - - - - - - 4.16 4.16 - 3.43 3.43 0.5 0.5 - - 3.45 3.45 60 Min 13 18 - 13 - - - - 40 -200 - - 4.04 4.04 2.4 3.0 3.0 - - 4.02 4.02 - - 20 +25C Typ 16 23 3.0 16 - - - - - 0 3.5 3.5 - - - - - - - - - - - - Max 19 28 4.0 19 250 250 1.0 1.0 325 +200 - - 4.19 4.19 - 3.44 3.44 0.5 0.5 - - 3.46 3.46 60 Min - - - - - - - - - - - - 4.1 4.1 2.4 3.02 3.02 - - 4.08 4.08 - - 20 +75C Max - - - - - - - - - - - - 4.28 4.28 - 3.47 3.47 0.5 0.5 - - 3.49 3.49 60 Vdc Vdc mAdc Vdc Adc Adc mAdc Vdc Vdc Unit mAdc Characteristic Power Supply Drain Current pp y Symbol ICC 14 15 14 15 4 to 7 2 to 3 2 3 12 13 10 12 13 10 10 12 13 12 13 10 VOHA VOLA IOS 1. Devices will meet standard MECL logic levels using VEE = -5.2 Vdc and VCC = 0. 2 MOTOROLA RF/IF DEVICE DATA MC12061 ELECTRICAL CHARACTERISTICS (continued) TEST VOLTAGE/CURRENT VALUES Volts @ Test Temperature 0C +25C +75C Pin Under Test 1 1 11 16 Input Current IinH IinL Differential Offset Voltage Output Voltage Level Logic `1' Output Voltage V Vout VOH1 (Note 1) VOH2 Logic `0' Output Voltage VOL1 (Note 1) VOL2 Logic `1' Threshold Voltage Logic `0' Threshold Voltage Output Short Circuit Current NOTE: VIHmax 4.16 4.19 4.28 VILmin 3.19 3.21 3.23 VIHAmin 3.86 3.90 3.96 VILAmax 3.51 3.52 3.55 VIHT 4.0 4.0 4.0 VCCL 4.75 4.75 4.75 TEST VOLTAGE APPLIED TO PINS LISTED BELOW VIHmax - - 14 - 14 15 15 14 - - - - 14 15 15 15 14 14 14 - - - - 15 VILmin - - 15 - 15 14 - - - - - - 15 14 14 14 15 15 15 - - - - 14 VIHAmin - - - - - - - - - - - - - - - - - - - 14 15 15 14 - VILAmax - - - - - - - - - - - - - - - - - - - 15 14 14 15 - VIHT - - - - - - - - 5,6 4 4 4 - - - - - - - - - - - - VCCL - - - - - - - - - - - - - - 11,16 - - 11,16 - - - - - 11,16 Gnd Gd 8 8 8,9 8 8 8 8,14 8,15 8 - 8 8 8 8 8,9 8 8 8,9 8,9 8 8 8 8 8,9,10 Characteristic Power Supply Drain Current Symbol ICC 14 15 14 15 4 to 7 2 to 3 2 3 12 13 10 12 13 10 10 12 13 12 13 10 VOHA VOLA IOS 1. Devices will meet standard MECL logic levels using VEE = -5.2Vdc and VCC = 0. MOTOROLA RF/IF DEVICE DATA 3 MC12061 ELECTRICAL CHARACTERISTICS (continued) TEST VOLTAGE/CURRENT VALUES Volts @ Test Temperature 0C +25C +75C Pin Under Test 1 1 11 16 Input Current IinH IinL Differential Offset Voltage Output Voltage Level Logic `1' Output Voltage V Vout VOH1 (Note 1) VOH2 Logic `0' Output Voltage VOL1 (Note 1) VOL2 Logic `1' Threshold Voltage Logic `0' Threshold Voltage Output Short Circuit Current NOTE: mA VCCH 5.25 5.25 5.25 IOL 16 16 16 IOH -0.4 -0.4 -0.4 IIL -2.5 -2.5 -2.5 VCC 5.0 5.0 5.0 TEST VOLTAGE APPLIED TO PINS LISTED BELOW VCC 1 1 11,16 16 16 16 16 16 1 - 1 1 16 16 - 16 16 - - 16 16 16 16 - VCCH - - - - - - - - - - - - - - - - - - 11,16 - - - - - IOL - - - - - - - - - - - - - - - - - 10 10 - - - - - IOH - - - - - - - - - - - - - - 10 - - - - - - - - - IIL - - - - - - - - - - - - 12 13 - 12 13 - - 12 13 12 13 - Gnd Gd 8 8 8,9 8 8 8 8,14 8,15 8 - 8 8 8 8 8,9 8 8 8,9 8,9 8 8 8 8 8,9,10 Characteristic Power Supply Drain Current Symbol ICC 14 15 14 15 4 to 7 2 to 3 2 3 12 13 10 12 13 10 10 12 13 12 13 10 VOHA VOLA IOS 1. Devices will meet standard MECL logic levels using VEE = -5.2Vdc and VCC = 0. 4 MOTOROLA RF/IF DEVICE DATA MC12061 Figure 6. AC Characteristics - MECL and TTL Outputs t+ 20% 80% 50% t+ + 50% TTL Output (Pin 10) MECL Output (Pin 13) MECL Output (Pin 12) t++ 50% 20% t+- 80% t+ t- + 50% 20% t- All input and output cables to the scope are equal lengths of 50 coaxial cable. Unused outputs are connected to a 50 1% resistor to ground. t+ 0.1 F 80% t- 8 9 CT 400 MMD6150 or Equiv MMD7000 or Equiv VEE = - 3.0 Vdc - 3.0 Vdc + 2.0 Vdc t- - Pulse Generator (EH 137 or Equiv) PRF = 2.0 MHz t + = t - = 2.0 0.2 ns t- +200 mV -200 mV t- - 15 0.1 F 16 VCC = + 2.0 Vdc Input (Pin 15) 11 13 450 12 10 450 1.2 k 14 C T = 15 pF = total parasitic capacitance which includes probe, wiring, and load capacitance. Test Limits TEST VOLTAGES/WAVEFORMS APPLIED TO PINS LISTED BELOW: Characteristic Ch ii Propagation Delay Symbol S bl t15 + 10 + t15 - 10 - t15 + 12 - t15 - 12 + t15 + 13 + t15 - 13 - t12 + t13 + t12 - t13 - Pin Pi 0C + 25C + 75C Under Test Min Max Min Typ Max Min Max U i P l In P l Out + 2 0 Vd - 3.0 Vdc G d Unit Pulse I Pulse O 2.0 Vdc 3 0 Vd Gnd 10 10 12 12 13 13 12 13 12 13 -- -- -- -- -- -- -- -- -- -- 22 19 5.2 5.0 4.8 5.0 4.0 4.0 4.0 4.0 -- -- -- -- -- -- -- -- -- -- 17 12 4.3 3.7 4.0 4.0 3.0 3.0 3.0 3.0 25 18 5.5 5.2 5.0 5.0 4.0 4.0 4.0 4.0 -- -- -- -- -- -- -- -- -- -- 27 18 5.8 5.2 5.2 5.1 4.4 4.4 4.0 4.0 ns 15 10 10 12 12 13 13 12 13 12 13 11,16 8,9 14 Rise Time Fall Time ns ns ns ns 15 15 15 15 11,16 11,16 11,16 11,16 8,9 8,9 8,9 8,9 14 14 14 14 Characteristic Ch ii Sine Wave Amplitude Pin Under Test 2 3 + 25C Min 650 650 Typ 750 750 Unit Ui mVp-p TEST VOLTAGE APPLIED TO PINS LISTED BELOW + 2.0 Vdc 1 - 3.0 Vdc 8,9 Figure 7. AC Test Circuit - Sine Wave Output All output cables to the scope are equal lengths of 50 coaxial cable. All unused cables must be terminated with a 50 1% resistor to ground. 450 resistor and the scope termination impedance constitute a 10:1 attenuator probe. Crystal -- Reeves Hoffman Series Mode, Series Resistance Minimum at Fundamental f = 10 MHz RE = 5 *RS = 15 k is inserted only for test purposes. When used with the above specified crystal, it guarantees oscillation with any crystal which has an equivalent series resistance 155 Rp: will improve start up problems value: 200-500 VCC = + 2.0 Vdc 0.1 F 1 0.1 F 0.1 F 4 3 2 450 450 6 p 5 *RS Rp 8 9 VEE = - 3.0 Vdc 0.1 F Crystal MOTOROLA RF/IF DEVICE DATA 5 MC12061 OPERATING CHARACTERISTICS The MC12061 consists of three basic sections: an oscillator with AGC and two translators (NO TAG). Buffered complementary sine wave outputs are available from the oscillator section. The translators convert these sine wave outputs to levels compatible with MECL and/or TTL. Series mode crystals should be used with the oscillator. If it is necessary or desirable to adjust the crystal frequency, a reactive element can be inserted in series with the crystal -- an inductor to lower the frequency or a capacitor to raise it. When such an adjustment is necessary, it is recommended that the crystal be specified slightly lower in frequency and a series trimmer capacitor be added to bring the oscillator back on frequency. As the oscillator frequency is changed from the natural resonance of the crystal, more and more dependence is placed on the external reactance, and temperature drift of the trimming components then affects overall oscillator performance. The MC12061 is designed to operate from a single supply -- either +5.0 Vdc or -5.2 Vdc. Although each translator has separate VCC and VEE supply pins, the circuit is NOT designed to operate from both voltage levels at the same time. The separate VEE pin from the TTL translator helps minimize transient disturbance. If neither translator is being used, all unused pins (9 thru 16) should be connected to VEE (pin 8). With the translators not powered, supply current drain is typically reduced from 42 mA to 23 mA for the MC12061. Frequency Stability Output frequency of different oscillator circuits (of a given device type number) will vary somewhat when used with a given test setup. However, the variation should be within approximately 0.001% from unit to unit. Frequency variations with temperature (independent of the crystal, which is held at 25C) are small -- about - 0.08 ppm/C for MC12061 operating at 8.0 MHz (see NO TAG). Signal Characteristics The sine wave outputs at either pin 2 or pin 3 will typically range from 800 mV p-p (no load) to 500 mV p-p (120 ohm ac load). Approximately 500 mV p-p can be provided across 50 ohms by slightly increasing the dc current in the output buffer by the addition of an external resistor (680 ohms) from pin 2 or 3 to ground, as shown in Figure 9. Frequency drift is typically less than 0.0003% when going from a high-impedance load (1 megohm, 15 pF) to the 50 ohm load of Figure 9. The dc voltage level at pin 2 or 3 is nominally 3.5 Vdc with V CC = +5.0 Vdc. Harmonic distortion content in the sine wave outputs is crystal as well as circuit dependent. The largest harmonic (third) will usually be at least 15 dB down from the fundamental. The harmonic content is approximately load independent except that the higher harmonic levels (greater than the fifth) are increased when the MECL translator is being driven. Typically, the MECL outputs (pins 12 and 13) will drive up to five gates, as defined in NO TAG, and the TTL output (pin 10) will drive up to ten gates, as defined in NO TAG. Noise Characteristics Noise level evaluation of the sine wave outputs using the circuit of NO TAG, with operation at or 9.0 MHz, indicates the following characteristics: 1. Noise floor (200 kHz from oscillator center frequency) is approximately -122 dB when referenced to a 1.0 Hz bandwidth. Noise floor is not sensitive to load conditions and/or translator operation. 2. Close-in noise (100 Hz from oscillator center frequency) is approximately -88 dB when referenced to a 1.0 Hz bandwidth. Figure 8. Frequency Variation Due to Temperature +10 VCC = +5.0 Vdc Tcrystal = 25C 0 MC12061 uf, FREQUENCY SHIFT (ppm) -10 -20 MC12061 -30 -55 -25 0 25 50 75 TA, AMBIENT TEMPERATURE () 100 125 Figure 9. Driving Low Impedance Loads +5.0 V 0.1 F 0.1 F 0.1 F 7 1 4 2 or 3 0.1 F 6 5 8 680 50 * See text under signal characteristics. 6 MOTOROLA RF/IF DEVICE DATA MC12061 Figure 10. MECL Translator Load Capability VCC = +5.0 V VCC = +5.0 V 0.1 F 11 Sine to MECL 13 12 15 pF 8 8.2 k 9 MECL to TTL Translator 0.1 F 270 +5.0 V Figure 11. TTL Translator Load Capability 16 10 15 pF 1.5 k All diodes MBD101 or Equiv Figure 12. Noise Measurement Test Circuit +5.0 V 0.1 F 0.1 F ANALYZER SETTING Measurement Sweep 50 kHz/div 20 kHz/div Bandwidth 10 kHz 10 Hz Video Filter 10 Hz 10 Hz 0.1 F 7 1 4 2 or 3 0.1 F To HP8552B/53B Spectrum Analyzer or Equiv Noise Floor Close-In Noise 6 5 8 750 MOTOROLA RF/IF DEVICE DATA 7 8 RESISTOR R3 (2 Places) MC12061 400 2 k 200 R2 (2 Places) R1 (2 Places) Oscillator Sine to MECL Translator Amplifier / AGC MECL to TTL Translator 16 VCC 2.98k 15+ 241 241 14- 12 MECL Output 13 1.2k 11 VCC Bias 7 410 VCC 1 AGC Filter 4 Sine Wave Output 23 + - R1 R1 410 100 Voltage Regulator 1k 260 MC12061 Figure 13. Circuit Schematic 10 680 540 TTL Output 500 750 410 Crystal 6 5 9.32k R2 R3 R3 R2 9.32k VEE 8 205 1.5k 1.5k 582 1.4k 130 20 20 VEE 9 MOTOROLA RF/IF DEVICE DATA MC12061 OUTLINE DIMENSIONS P SUFFIX PLASTIC PACKAGE CASE 648-08 ISSUE R -A- 16 9 B 1 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 4. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 5. ROUNDED CORNERS OPTIONAL. DIM A B C D F G H J K L M S INCHES MIN MAX 0.740 0.770 0.250 0.270 0.145 0.175 0.015 0.021 0.040 0.70 0.100 BSC 0.050 BSC 0.008 0.015 0.110 0.130 0.295 0.305 0_ 10 _ 0.020 0.040 MILLIMETERS MIN MAX 18.80 19.55 6.35 6.85 3.69 4.44 0.39 0.53 1.02 1.77 2.54 BSC 1.27 BSC 0.21 0.38 2.80 3.30 7.50 7.74 0_ 10 _ 0.51 1.01 F S C L -T- H G D 16 PL SEATING PLANE K J TA M M 0.25 (0.010) M Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. "Typical" parameters which may be provided in Motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including "Typicals" must be validated for each customer application by customer's technical experts. Motorola does not convey any license under its patent rights nor the rights of others. Motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Motorola product could create a situation where personal injury or death may occur. Should Buyer purchase or use Motorola products for any such unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part. Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer. Mfax is a trademark of Motorola, Inc. How to reach us: USA / EUROPE / Locations Not Listed: Motorola Literature Distribution; P.O. Box 5405, Denver, Colorado 80217. 1-303-675-2140 or 1-800-441-2447 Customer Focus Center: 1-800-521-6274 MfaxTM: RMFAX0@email.sps.mot.com - TOUCHTONE 1-602-244-6609 ASIA/PACIFIC: Motorola Semiconductors H.K. Ltd.; 8B Tai Ping Industrial Park, Motorola Fax Back System - US & Canada ONLY 1-800-774-1848 51 Ting Kok Road, Tai Po, N.T., Hong Kong. 852-26629298 - http://sps.motorola.com/mfax/ HOME PAGE: http://motorola.com/sps/ JAPAN: Nippon Motorola Ltd.: SPD, Strategic Planning Office, 141, 4-32-1 Nishi-Gotanda, Shagawa-ku, Tokyo, Japan. 03-5487-8488 MOTOROLA RF/IF DEVICE DATA MC12061/D 9 |
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