Phase-locked loop with VCO

The 74HC4046A; 74HCT4046A is a high-speed Si-gate CMOS device. It is specified in compliance with JEDEC standard no 7A.

Features and benefits

  • Low power consumption

  • VCO-Inhibit control for ON/OFF keying and for low standby power consumption

  • Center frequency up to 17 MHz (typical) at VCC = 4.5 V

  • Choice of three phase comparators:


    • PC2: Edge-triggered J-K flip-flop

    • PC3: Edge-triggered RS flip-flop

  • Excellent Voltage Controlled Oscillator (VCO) linearity

  • Low frequency drift with supply voltage and temperature variations

  • Operating power supply voltage range:

    • VCO section 3.0 V to 6.0 V

    • Digital section 2.0 V to 6.0 V

  • Zero voltage offset due to operational amplifier buffering

  • ESD protection:

    • HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V
    • CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V


  • FM modulation and demodulation

  • Frequency synthesis and multiplication

  • Frequency discrimination

  • Tone decoding

  • Data synchronization and conditioning

  • Voltage-to-frequency conversion

  • Motor-speed control


Type number Product status Package name
74HCT4046APW Production TSSOP16


Type number Orderable part number, (Ordering code (12NC)) Status Marking Package Package information Reflow-/Wave soldering Packing
74HCT4046APW 74HCT4046APWJ
Active HCT4046 SOT403-1

Environmental information

Type number Orderable part number Chemical content RoHS RHF-indicator
74HCT4046APW 74HCT4046APWJ 74HCT4046APW rohs rhf rhf
Quality and reliability disclaimer

Documentation (11)

File name Title Type Date
74HC_HCT4046A Phase-locked loop with VCO Data sheet 2024-02-19
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22
Nexperia_package_poster Nexperia package poster Leaflet 2020-05-15
TSSOP16_SOT403-1_mk plastic, thin shrink small outline package; 16 leads; 0.65 mm pitch; 5 mm x 4.4 mm x 1.1 mm body Marcom graphics 2017-01-28
SOT403-1_118 TSSOP16; Reel pack for SMD, 13"; Q1/T1 product orientation Packing information 2020-04-21
SOT403-1_128 TSSOP16; Reel pack; SMD, 13", Turned Q4/T2 180 deg product orientation Orderable part number ending ,128 or HP Ordering code (12NC) ending 128 Packing information 2020-04-27
SOT403-1_623 TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 623 or HL; Ordering code (12NC) ending 623 Packing information 2020-04-27
SOT403-1_653 TSSOP16; Reel pack; SMD, 13"; Q1 Standard product orientation; Orderable part number ending, 653 or HL; Ordering code (12NC) ending 653 Packing information 2020-04-27
SSOP-TSSOP-VSO-WAVE Footprint for wave soldering Wave soldering 2009-10-08


If you are in need of design/technical support, let us know and fill in the answer form we'll get back to you shortly.


File name Title Type Date
SOT403-1 3D model for products with SOT403-1 package Design support 2020-01-22

Ordering, pricing & availability

Type number Orderable part number Ordering code (12NC) Status Packing Packing Quantity Buy online
74HCT4046APW 74HCT4046APWJ 935691213118 Active SOT403-1_118 2,500 Order product


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Sample orders normally take 2-4 days for delivery.

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How does it work?

The interactive datasheets are based on the Nexperia MOSFET precision electrothermal models. With our interactive datasheets you can simply specify your own conditions interactively. Start by changing the values of the conditions. You can do this by using the sliders in the condition fields. By dragging the sliders you will see how the MOSFET will perform at the new conditions set.

Orderable parts

Type number Orderable part number Ordering code (12NC) Package Buy from distributors
74HCT4046APW 74HCT4046APWJ 935691213118 SOT403-1 Order product