The 74HC/HCT4046A are high-speed Si-gate CMOS devices and are pin compatible with the '4046' of the '4000B' series. They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT4046A are phase-locked-loop circuits that comprise a linear voltage-controlled oscillator (VCO) and three different phase comparators (PC1, PC2 and PC3) with a common signal input amplifier and a common comparator input.
The signal input can be directly coupled to large voltage signals, or indirectly coupled (with a series capacitor) to small voltage signals. A self-bias input circuit keeps small voltage signals within the linear region of the input amplifiers. With a passive low-pass filter, the '4046A' forms a second-order loop PLL. The excellent VCO linearity is achieved by the use of linear op-amp techniques.
The VCO requires one external capacitor C1 (between C1A and C1B) and one external resistor R1 (between R1 and GND) or two external resistors R1 and R2 (between R1 and GND, and R2 and GND). Resistor R1 and capacitor C1 determine the frequency range of the VCO. Resistor R2 enables the VCO to have a frequency offset if required.
The high input impedance of the VCO simplifies the design of low-pass filters by giving the designer a wide choice of resistor/capacitor ranges. In order not to load the low-pass filter, a demodulator output of the VCO input voltage is provided at pin 10 (DEMOUT). In contrast to conventional techniques where the DEMOUT voltage is one threshold voltage lower than the VCO input voltage, here the DEMOUT voltage equals that of the VCO input. If DEMOUT is used, a load resistor (RS) should be connected from DEMOUT to GND; if unused, DEMOUT should be left open. The VCO output (VCOOUT) can be connected directly to the comparator input (COMPIN), or connected via a frequency-divider. The VCO output signal has a duty factor of 50% (maximum expected deviation 1%), if the VCO input is held at a constant DC level. A LOW level at the inhibit input (INH) enables the VCO and demodulator, while a HIGH level turns both off to minimize standby power consumption.
The only difference between the HC and HCT versions is the input level specification of the INH input. This input disables the VCO section. The sections of the comparator are identical, so that there is no difference in the SIGIN (pin 14) or COMPIN (pin 3) inputs between the HC and HCT versions.
| Type number | Orderable part number | Ordering code (12NC) | Product status | Package | Packing | Marking | ECCN |
|---|---|---|---|---|---|---|---|
| 74HC4046AD | 74HC4046AD,652 | 9338 095 50652 | Volume production | SOT109-1
(SO16) | Bulk Pack, CECC | Standard Marking | |
| 74HC4046AD | 74HC4046AD,653 | 9338 095 50653 | Volume production | SOT109-1
(SO16) | Reel Pack, SMD, 13", CECC | Standard Marking | |
| 74HC4046ADB | 74HC4046ADB,112 | 9351 874 50112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HC4046ADB | 74HC4046ADB,118 | 9351 874 50118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HC4046AN | 74HC4046AN,652 | 9338 095 40652 | Volume production | SOT38-4
(DIP16) | Bulk Pack, CECC | Standard Marking | |
| 74HC4046APW | 74HC4046APW,112 | 9351 874 60112 | Volume production | SOT403-1
(TSSOP16) | Tube | Standard Marking | |
| 74HC4046APW | 74HC4046APW,118 | 9351 874 60118 | Volume production | SOT403-1
(TSSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT4046AD | 74HCT4046AD,112 | 9338 095 70112 | Volume production | SOT109 | Bulk Pack | Standard Marking | |
| 74HCT4046AD | 74HCT4046AD,118 | 9338 095 70118 | Volume production | SOT109 | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT4046ADB | 74HCT4046ADB,112 | 9351 749 40112 | Volume production | SOT338-1
(SSOP16) | Tube | Standard Marking | |
| 74HCT4046ADB | 74HCT4046ADB,118 | 9351 749 40118 | Volume production | SOT338-1
(SSOP16) | Reel Pack, SMD, 13" | Standard Marking | |
| 74HCT4046AN | 74HCT4046AN,112 | 9338 095 60112 | Volume production | SOT38-4
(DIP16) | Bulk Pack | Standard Marking |
| Type number | Orderable part number | Chemical content | RoHS | Leadfree Conversion date | RHF | IRF (FIT) | MTBF (hours) | MSL |
|---|---|---|---|---|---|---|---|---|
| 74HC4046AD | 74HC4046AD,652 | 74HC4046AD |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC4046AD | 74HC4046AD,653 | 74HC4046AD |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HC4046ADB | 74HC4046ADB,112 | 74HC4046ADB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC4046ADB | 74HC4046ADB,118 | 74HC4046ADB |
| week 12, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC4046AN | 74HC4046AN,652 | 74HC4046AN |
| Always Pb-free | 6,62 | 1,51E+08 | NA | |
| 74HC4046APW | 74HC4046APW,112 | 74HC4046APW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HC4046APW | 74HC4046APW,118 | 74HC4046APW |
| week 10, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT4046AD | 74HCT4046AD,112 | 74HCT4046AD |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT4046AD | 74HCT4046AD,118 | 74HCT4046AD |
| week 6, 2004 | 6,62 | 1,51E+08 | 1 | |
| 74HCT4046ADB | 74HCT4046ADB,112 | 74HCT4046ADB |
| week 13, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT4046ADB | 74HCT4046ADB,118 | 74HCT4046ADB |
| week 13, 2005 | 6,62 | 1,51E+08 | 1 | |
| 74HCT4046AN | 74HCT4046AN,112 | 74HCT4046AN |
| Always Pb-free | 6,62 | 1,51E+08 | NA |
| Type number | Ordering code(12NC) | Orderable part number | Indicative price/unit($) | Region | Distributor | In stock | Order quantity | Inventory date | Buy online | Samples |
|---|---|---|---|---|---|---|---|---|---|---|
| 74HC4046AD | 9338 095 50652 | 74HC4046AD,652 | 0.5200 | NA | NEWARK | 61 | 11/20/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 1,762 | 11/19/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 1,390 | 11/20/2009 | Buy online | ||||||
| 74HC4046AD | 9338 095 50653 | 74HC4046AD,653 | 0.5200 | NA | NEWARK | 61 | 11/20/2009 | Buy online | Order samples | |
| NA | ARROW ELECTRONICS | 1,762 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,538 | 11/20/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 15,850 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,538 | 11/20/2009 | Buy online | ||||||
| ASIA | SAC - Taiwan | yes | 2500 | 11/20/2009 | Buy online | |||||
| 74HC4046ADB | 9351 874 50112 | 74HC4046ADB,112 | 0.5400 | not available | ||||||
| 74HC4046ADB | 9351 874 50118 | 74HC4046ADB,118 | 0.5400 | ASIA | SAC - Taiwan | yes | 2000 | 11/20/2009 | Buy online | not available |
| 74HC4046AN | 9338 095 40652 | 74HC4046AN,652 | 0.5200 | NA | NEWARK | 935 | 11/20/2009 | Buy online | Order samples | |
| NA | AVNET ELECTRONICS MARKETING | 644 | 11/19/2009 | Buy online | ||||||
| 74HC4046APW | 9351 874 60112 | 74HC4046APW,112 | 0.5200 | not available | ||||||
| 74HC4046APW | 9351 874 60118 | 74HC4046APW,118 | 0.5200 | Order samples | ||||||
| 74HCT4046AD | 9338 095 70112 | 74HCT4046AD,112 | 0.5200 | NA | NEWARK | 589 | 11/20/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 2,583 | 11/19/2009 | Buy online | ||||||
| NA | DIGI-KEY CORPORATION | 234 | 11/20/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 905 | 11/19/2009 | Buy online | ||||||
| 74HCT4046AD | 9338 095 70118 | 74HCT4046AD,118 | 0.5200 | NA | NEWARK | 589 | 11/20/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 2,583 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 2,041 | 11/20/2009 | Buy online | ||||||
| NA | FUTURE ELECTRONICS | 7,500 | 11/19/2009 | Buy online | ||||||
| NA | ARROW ELECTRONICS | 2,500 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 2,041 | 11/20/2009 | Buy online | ||||||
| ASIA | WPI | 2,500 | 2500 | 11/19/2009 | Buy online | |||||
| 74HCT4046ADB | 9351 749 40112 | 74HCT4046ADB,112 | 0.7800 | NA | DIGI-KEY CORPORATION | 2,342 | 11/20/2009 | Buy online | not available | |
| 74HCT4046ADB | 9351 749 40118 | 74HCT4046ADB,118 | 0.7800 | NA | MOUSER ELECTRONICS | 1,935 | 11/20/2009 | Buy online | not available | |
| NA | ARROW ELECTRONICS | 2,000 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 1,935 | 11/20/2009 | Buy online | ||||||
| 74HCT4046AN | 9338 095 60112 | 74HCT4046AN,112 | 0.5200 | NA | MOUSER ELECTRONICS | 912 | 11/20/2009 | Buy online | not available | |
| NA | AVNET ELECTRONICS MARKETING | 600 | 11/19/2009 | Buy online | ||||||
| NA | MOUSER ELECTRONICS | 912 | 11/20/2009 | Buy online |
| Type number | Package | Description | Fmax(MHz) | Propagation Delay(ns) | Voltage | No. of Pins | Power Dissipation Considerations | Logic Switching Levels | Output Drive Capability |
|---|---|---|---|---|---|---|---|---|---|
| 74HC4046AD | SOT109-1
(SO16) | Phase-Locked-Loop with VCO | 21 | 18@5V | 3.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC4046ADB | SOT338-1
(SSOP16) | Phase-Locked-Loop with VCO | 21 | 18@5V | 3.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC4046AN | SOT38-4
(DIP16) | Phase-Locked-Loop with VCO | 21 | 18@5V | 3.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HC4046APW | SOT403-1
(TSSOP16) | Phase-Locked-Loop with VCO | 21 | 18@5V | 3.0-6.0 V | 16 | Low Power or Battery Applications | CMOS | +/- 5.2 mA |
| 74HCT4046AD | SOT109
| Phase-Locked-Loop with VCO; TTL Enabled | 19 | 23 | 4.5-5.5 V | Low Power | TTL | +/- 4 mA | |
| 74HCT4046ADB | SOT338-1
(SSOP16) | Phase-Locked-Loop with VCO; TTL Enabled | 19 | 23 | 4.5-5.5 V | Low Power | TTL | +/- 4 mA | |
| 74HCT4046AN | SOT38-4
(DIP16) | Phase-Locked-Loop with VCO; TTL Enabled | 19 | 23 | 4.5-5.5 V | Low Power | TTL | +/- 4 mA |
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