MC1648 MOTOROLA | Alldatasheet
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Technical content
/C0077/C0079/C0084/C0079/C0082/C0079/C0076/C0065 SEMICONDUCTOR TECHNICAL DATA 1 REV 2 Motorola, Inc. 1997 /C0086/C0111/C0108/C0116/C0097/C0103/C0101 /C0067/C0111/C0110/C0116/C0114/C0111/C0108/C0108/C0101/C0100 /C0079/C0115/C0099/C0105/C0108/C0108/C0097/C0116/C0111/C0114 /C0067/C0111/C0110/C0115/C0105/C0100/C0101/C0114 /C0077/C0067/C0049/C0050/C0049/C0052/C0056 /C0102/C0111/C0114 /C0078/C0101/C0119 /C0068/C0101/C0115/C0105/C0103/C0110/C0115 The MC1648 requires an external parallel tank circuit consisting of the inductor (L) and capacitor (C). For Maximum Performance QL ≥ 100 at Frequency of Operation. A varactor diode may be incorporated into the tank circuit to provide a voltage variable input for the oscillator (VCO). The MC1648 was designed for use in the Motorola Phase–Locked Loop shown in Figure 9. This device may also be used in many other applications requiring a fixed or variable frequency clock source of high spectral purity. (See Figure 2) The MC1648 may be operated from a +5.0Vdc supply or a –5.2Vdc supply, depending upon system requirements. NOTE: The MC1648 is NOT useable as a crystal oscillator. Pinout: 14–Lead Package (Top View) 1314 12 11 10 9 8 21 34567 VCC NC TANK NC BIAS NC V EE VCC NC OUT NC AGC NC V EE Pin assignment is for Dual–in–Line Package. For PLCC pin assignment, see the MC1648 Non–Standard Pin Conversion Table below. MC1648 NON–STANDARD PIN CONVERSION DATA Package TANK VCC VCC OUT AGC VEE VEE BIAS
8 D 1 2 3 4 5 6 7 8
14 L,P 12 14 1 3 5 7 8 10
*NOTE – All unused pins are not connected. Supply Voltage GND Pins Supply Pins +5.0Vdc 7,8 1,14 –5.2Vdc 1,14 7,8 AGC LOGIC DIAGRAM TANK 12 BIAS POINT 10 OUTPUT
- Input Capacitance = 6.0pF (TYP)
- Maximum Series Resistance for L (External Inductance) = 50Ω (TYP)
- Power Dissipation = 150mW (TYP)/Pkg (+5.0Vdc Supply)
- Maximum Output Frequency = 225MHz (TYP) VCC1 = Pin 1 VCC2 = Pin 14 VEE = Pin 7 /C0077/C0067/C0049/C0054/C0052/C0056 VOLTAGE CONTROLLED OSCILLATOR FN SUFFIX 20–LEAD PLCC PACKAGE CASE 775–02 L SUFFIX 14–LEAD CERAMIC PACKAGE CASE 632–08 P SUFFIX 14–LEAD PLASTIC PACKAGE CASE 646–06 D SUFFIX 8–PIN PLASTIC SOIC PACKAGE CASE 751–05 Not Recommended for New Designs
Figure 1. Circuit Schematic
- This measurement guarantees the dc potential at the bias point for purposes of incorporating a varactor tuning diode at this point.
- Frequency variation over temperature is a direct function of the ΔC/Δ Temperature and ΔL/Δ Temperature.
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Figure 2. Spectral Purity of Signal Output for 200MHz Testing
3 SIGNAL
L: Micro Metal torroid #T20–22, 8 turns #30 Enameled Copper wire. attenuator probe. Coax shall be CT–075–50 or equivalent.
- This measurement guarantees the dc potential at the bias point for purposes of incorporating a varactor tuning diode at this point.
- Frequency variation over temperature is a direct function of the ΔC/Δ Temperature and ΔL/Δ Temperature.
BR1334 — Rev 4
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- The 1200 ohm resistor and the scope termination impedance consti- tute a 25:1 attenuator probe. Coax shall be CT–070–50 or equivalent. NOT used in normal operation. ** Input resistor and cap are for test only. They are NOT necessary for normal operation. * The 1200 ohm resistor and the scope termination impedance consti- tute a 25:1 attenuator probe. Coax shall be CT–070–50 or equivalent. NOT used in normal operation. ** Input resistor and cap are for test only. They are NOT necessary for normal operation. Figure 6 Figure 7 Figure 8 Vin, INPUT VOLTAGE (VOLTS) Vin, INPUT VOLTAGE (VOLTS) 190 Vin, INPUT VOLTAGE (VOLTS) 24 6 8 fout, OUTPUT FREQUENCY (MHz)fout, OUTPUT FREQUENCY (MHz)fout, OUTPUT FREQUENCY (MHz) 24 68 01 0 2468 170 150 130 110 0.1µF L 0.1µF VCC1 = VCC2 = +5.0Vdc VEE1 = VEE2 = GND fout Vin MV1401 1200* 5.0µF L = 0.13µH Q L ≥ 100 L: Micro Metal Toroidal Core #T44–10, 4 turns of No. 22 copper wire. 0.1µF L 0.1µF VCC1 = VCC2 = +5.0Vdc VEE1 = VEE2 = GND fout Vin MV1401 1200* 5.0µF Q L ≥ 100 C = 500pF L = 1.58 µH L: Micro Metal Toroidal Core #T44–10, 20 turns of No. 22 copper wire. C 1.0k 1.0k * The 1200 ohm resistor and the scope termination impedance consti- tute a 25:1 attenuator probe. Coax shall be CT–070–50 or equivalent. NOT used in normal operation. ** Input resistor and cap are for test only. They are NOT necessary for normal operation. 0.1µF L 0.1µF VCC1 = VCC2 = +5.0Vdc VEE1 = VEE2 = GND fout Vin 1200* Q L ≥ 100 L = 0.065µH L: Micro Metal Toroidal Core #T30–12, 6 turns of No. 22 copper wire. 51k MV1404 5.0µF
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Figure 9. Typical Frequency Synthesizer Application Figure 10. Method of Obtaining a Sine–Wave Output Figure 11. Method of Extending the Useful Range
BR1334 — Rev 4
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CASE 646–06 ISSUE L 18.16 6.10 3.69 0.38 1.02 1.32 0.20 2.92 0.39 19.56 6.60 4.69 0.53 1.78 2.41 0.38 3.43 1.01
2.54 BSC
7.62 BSC
0.715 0.240 0.145 0.015 0.040 0.052 0.008 0.115 0.015 SEATING PLANE
0.100 BSC
0.300 BSC
0.770 0.260 0.185 0.021 0.070 0.095 0.015 0.135 0.039 A B C D F G H J K L M N NOTES: 1. LEADS WITHIN 0.13 (0.005) RADIUS OF TRUE POSITION AT SEATING PLANE AT MAXIMUM MATERIAL CONDITION. 2. DIMENSION L TO CENTER OF LEADS WHEN FORMED PARALLEL. 3. DIMENSION B DOES NOT INCLUDE MOLD FLASH. 4. ROUNDED CORNERS OPTIONAL. 14 8 B A F HG D N K C L J M MIN MIN MAX MAX INCHES MILLIMETERS DIM A B C D F G J K L M N 0.785 0.280 0.200 0.020 0.065 0.015 0.170 0.040 0.750 0.245 0.155 0.015 0.055 0.008 0.125 0.020 19.94 7.11 5.08 0.50 1.65 0.38 4.31 1.01 19.05 6.23 3.94 0.39 1.40 0.21 3.18 0.51 NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL. 4. DIMESNION F MAY NARROW TO 0.76 (0.030) WHERE THE LEAD ENTERS THE CERAMIC BODY. 14 8 -A- -B- -T- SEATING PLANE FG N K C L M 0.25 (0.010) T AM S 0.25 (0.010) T BM S J 14 PLD 14 PL L SUFFIX CERAMIC PACKAGE CASE 632–08 ISSUE Y D SUFFIX PLASTIC SOIC PACKAGE CASE 751–05 ISSUE R SEATING PLANE A0.25 M CB SS
0.25 M B M
h /C0113 C X 45/C0095 L DIM MIN MAX MILLIMETERS A 1.35 1.75 A1 0.10 0.25 B 0.35 0.49 C 0.18 0.25 D 4.80 5.00 E
1.27 BSCe
3.80 4.00 H 5.80 6.20 h 0 7 L 0.40 1.25 /C0113 0.25 0.50 /C0095/C0095 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. D E H A B e BA1 C A 0.10
BR1334 — Rev 4 OUTLINE DIMENSIONS FN SUFFIX PLASTIC PLCC PACKAGE CASE 775–02 ISSUE C A B C E F G H J K R U V W X Y Z MIN MIN MAX MAX INCHES MILLIMETERS DIM 9.78 9.78 4.20 2.29 0.33 0.66 0.51 0.64 8.89 8.89 1.07 1.07 1.07 7.88 1.02 10.03 10.03 4.57 2.79 0.48 0.81 9.04 9.04 1.21 1.21 1.42 0.50 8.38 0.385 0.385 0.165 0.090 0.013 0.026 0.020 0.025 0.350 0.350 0.042 0.042 0.042 0.310 0.040 0.395 0.395 0.180 0.110 0.019 0.032 0.356 0.356 0.048 0.048 0.056 0.020 0.330 1.27 BSC0.050 BSC NOTES: 1. DATUMS -L-, -M-, AND -N- DETERMINED WHERE TOP OF LEAD SHOULDER EXITS PLASTIC BODY AT MOLD PARTING LINE. 2. DIM G1, TRUE POSITION TO BE MEASURED AT DATUM -T-, SEATING PLANE. 3. DIM R AND U DO NOT INCLUDE MOLD FLASH. ALLOWABLE MOLD FLASH IS 0.010 (0.250) PER SIDE. 4. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 5. CONTROLLING DIMENSION: INCH. 6. THE PACKAGE TOP MAY BE SMALLER THAN THE PACKAGE BOTTOM BY UP TO 0.012 (0.300). DIMENSIONS R AND U ARE DETERMINED AT THE OUTERMOST EXTREMES OF THE PLASTIC BODY EXCLUSIVE OF MOLD FLASH, TIE BAR BURRS, GATE BURRS AND INTERLEAD FLASH, BUT INCLUDING ANY MISMATCH BETWEEN THE TOP AND BOTTOM OF THE PLASTIC BODY. 7. DIMENSION H DOES NOT INCLUDE DAMBAR PROTRUSION OR INTRUSION. THE DAMBAR PROTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE GREATER THAN 0.037 (0.940). THE DAMBAR INTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE SMALLER THAN 0.025 (0.635). -N- Y BRK -M--L- W V D D 20 1 A R Z C G E J VIEW S B U Z G1X H F VIEW S K VIEW D-D 0.007 (0.180) T L –M S N SM 0.007 (0.180) T L –M S N SM SEATING PLANE-T- 0.010 (0.250) T L –M S N SS 0.007 (0.180) T L –M S N SM 0.007 (0.180) T L –M S N SM 0.010 (0.250) T L –M S N SS 0.007 (0.180) T L –M S N SM 0.007 (0.180) T L –M S N SM 0.004 (0.100)
BR1334 — Rev 4
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