MC74HC4046ADG

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MC74HC4046ADG

IC PHASE LOCKED LOOP 16-SOIC

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Especificaciones

Supplier onsemi
Package Tube
Series 74HC
ProductStatus Obsolete
Type Phase Lock Loop (PLL)
PLL Yes
Input CMOS
Output CMOS
NumberofCircuits 1
Ratio-Input:Output 1:4
Frequency-Max 13MHz
Divider/Multiplier No/No
Voltage-Supply 3V ~ 6V
OperatingTemperature -55°C ~ 125°C
MountingType Surface Mount
Package/Case 16-SOIC (0.154, 3.90mm Width)

Descripción general

Description

The MC74HC4046ADG is a CMOS analog phase-locked loop (PLL) with a voltage-controlled oscillator (VCO) built in. It is used to synchronize a locally generated VCO to an input signal, enabling applications such as simple frequency synthesis, FM/FSK demodulation, clock recovery, and servo control.
How it works:
- An external RC network sets the VCO’s free-running frequency.
- A phase detector output, filtered by a loop filter (also external), provides a control voltage to the VCO to lock to the input signal.
- Once locked, the VCO tracks the input frequency with a stable output.
Key points:
- Typical 2–6 V CMOS operation; low power suitable for CMOS systems.
- Requires external components (RC networks) for VCO tuning and loop filtering.
- Package options include 14-pin DIP/SOIC; ADG suffix denotes a specific TI RoHS-compliant package/grade.
Common uses:
- FM/FSK demodulation, simple frequency synthesis, clock/data recovery, and other analog PLL-based applications in mixed-signal designs.

Features

Key features of MC74HC4046ADG (CMOS PLL with VCO):
- CMOS phase-locked loop (PLL) with an on-chip voltage-controlled oscillator (VCO).
- External RC network sets the VCO center frequency; wide tunable range.
- Integrated phase detector with a control-voltage output; requires an external low-pass filter to convert to a smooth control voltage for the VCO.
- Supply voltage: 2 V to 6 V (HC family); low-power CMOS operation.
- Package options: 14-pin DIP and surface-mmount variants (e.g., SOIC/TSSOP).
- Operating temperature options including commercial and industrial/extended ranges (variants may cover -40°C to 85°C or -40°C to 125°C depending on grade).
- Applications: FM demodulation, clock/data recovery, frequency synthesis, tone decoding, servo control, and other analog/digital PLL tasks.
- CMOS/TTL input compatibility with typical ESD protection.
Note: Exact specs (current, precise voltage ranges, and temperature) depend on the exact package/grade (HC family vs. industrial/automotive variants).

Package

MC74HC4046ADG is a 14‑pin device, available in PDIP‑14 and in a 14‑pin SOIC (DG) RoHS‑compliant package; the DG suffix denotes the RoHS/lead‑free version.

Pinout

- Pin count: 14 pins (DIP/SOIC variants).
- Function: CMOS phase-locked loop (PLL) with an on-chip voltage-controlled oscillator (VCO); used for frequency synthesis/clock recovery with external feedback/divider and RC timing components.

Manufacturer

- Manufacturer: Motorola (Motorola, Inc.), with the MC74HC4046ADG now under NXP Semiconductors after corporate mergers.
- Company type: A multinational technology company specializing in electronics and semiconductors (telecommunications equipment & components).

Application

MC74HC4046ADG is a CMOS phase-locked loop IC with a VCO and phase detector. Typical applications: FM demodulation; frequency synthesis and programmable clock generation; clock/data recovery and timing in communications; tone detection and frequency discrimination; simple servo/instrumentation control loops.

Equivalent

Equivalent products for MC74HC4046ADG (phase-locked loop with VCO):
- TI SN74HC4046A
- CD4046BE/CD4046B (4000-series CMOS)
- 74HC4046 (other vendors’ HC family)
- 74HCT4046 (TTL-input compatible)
- 74LVC4046 (low-voltage CMOS)
Note: verify pinout, voltage range, and VCO input specs across vendors.

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