HC4046 System Logic Semiconductor, HC4046 Datasheet
HC4046
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HC4046 Summary of contents
Page 1
... High-Performance Silicon-Gate CMOS The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs. The SL74HC4046 phase-locked loop contains three phase comparators, a voltage-controlled oscillator (VCO) and unity gain op- amp DEM . The comparators have two common signal inputs, ...
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... Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or V Unused outputs must be left open. System Logic SLS Semiconductor Parameter and GND Pins SOIC Package+ Parameter and V IN SL74HC4046 Value Unit -0.5 to +7 750 ...
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... SL74HC4046 [Phase Comparator Section] DC ELECTRICAL CHARACTERISTICS Symbol Parameter V Minimum High-Level IH Input Voltage DC Coupled SIG , COMP Maximum Low -Level IL Input Voltage DC Coupled SIG , COMP Minimum High-Level OH Output Voltage PCP , PCn OUT OUT V Maximum Low-Level OL Output Voltage PCP , PCn ...
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... OUT 3.0 0 4.5 0.1 OUT 6.0 0 4.0 mA 4.5 0.26 OUT I 5.2 mA 6.0 0.26 OUT SL74HC4046 =6.0 ns) f Guaranteed Limit 125 C Unit -55 C 175 220 265 340 425 510 68 85 102 270 340 405 ...
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... SL74HC4046 (continued) System Logic SLS Semiconductor ...
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... INH= V 3.0 0.1 IL 4.5 0.1 6.0 0.1 3.0 3.0 4.5 3.0 6.0 3.0 3.0 3.0 4.5 3.0 6.0 3.0 3.0 40 4 =50pF,Input -55 C Min Max 3.0 4.5 6.0 3.0 3 4.5 11 6.0 13 3.0 4.5 6.0 3.0 4.5 6.0 SL74HC4046 Guaranteed Limit 85 C 125 C 1.0 1.0 Max Min Max Min Max 1.0 0.1 1.0 0.1 1.0 2.5 0.1 2.5 0.1 2.5 4.0 0.1 4.0 0.1 4.0 300 3.0 300 3.0 300 300 3.0 300 3.0 300 300 3.0 300 3.0 300 300 3.0 300 3.0 300 300 3.0 300 3.0 300 300 3.0 300 3 ...
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... SL74HC4046 [Demodulator Section] DC ELECTRICAL CHARACTERISTICS Symbol Parameter RS Resistor Range V Offset Voltage VCO OFF IN to VDEM OUT RD Dynamic Output Resistance at DEM OUT Figure 1. Switching Waveforms Figure 3. Switching Waveforms V CC Test Conditions -55 C Min At RS > 300 k 3.0 50 the Leakage 4.5 50 Current can 6 ...
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... The output of the VCO is a standard high speed CMOS output with an equivalent LS-TTL fan out of 10. of the ref The VCO output is approximately a square wave. This output can either directly feed the COMP phase comparators or feed external prescalers (counters) to enable frequency synthesis. Figure 5. Logic Diagram for VCO SL74HC4046 of the IN ...
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... SL74HC4046 Phase Comparators All three phase comparators have two inputs, SIG and COMP . The SIG and COMP special DC bias network that enables AC coupling of input signals. If the signals are not AC coupled, standard SL74HC input levels are required. Both input structures are shown in Figure 6. The outputs of these Figure 6 ...
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Phase Comparator 2 This detector is a digital memory network. It consists of four flip-flops and some gating logic, a three state output and a phase pulse output as shown in Figure 6. This comparator acts only on the positive ...
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... SL74HC4046 Figure 10. Offset Voltage at Demodulator Output as a Function of VCO and R IN Figure 11B. Frequency Stability versus Ambient Temperature 4 Figure 12A. VCO Frequency ( Function of VCO the VCO Input Voltage (V Figure 11A. Frequency Stability versus Ambient Temperature Figure 11C. Frequency Stability versus Ambient Temperature: V Figure 12B ...
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... Figure 12C. VCO Frequency ( Function of VCO the VCO Input Voltage (V Figure 13A. Frequency Linearity versus R1,C1 and V CC Figure 12D. VCO Frequency (f ) the VCO Input Voltage (V VCOIN Figure 13B. Definition of VCO Frequency Linearity) IN74HC4046A ) as a Function of VCO ) VCOIN 491 ...