Overview
The MC14046B, produced by onsemi, is a phase locked loop (PLL) integrated circuit that integrates two phase comparators, a voltage-controlled oscillator (VCO), a source follower, and a zener diode. This device is designed to handle various phase locking and frequency control tasks. It is compatible with low-power TTL logic and offers a wide supply voltage range, making it versatile for different applications. The MC14046B is also pin-for-pin compatible with the CD4046B, making it a suitable replacement in existing designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| DC Supply Voltage Range (VDD) | -0.5 to +18.0 | V |
| Input Voltage Range (Vin) | -0.5 to VDD + 0.5 | V |
| DC Input Current, per Pin (Iin) | ±10 | mA |
| Power Dissipation, per Package (PD) | 500 | mW |
| Operating Temperature Range (TA) | -55 to +125 | °C |
| Storage Temperature Range (Tstg) | -65 to +150 | °C |
| Output Voltage “0” Level (VOL) | 0.05 Vdc (max) | Vdc |
| Output Voltage “1” Level (VOH) | 4.95 to 14.95 Vdc (typical) | Vdc |
| Input Voltage “0” Level (VIL) | 1.5 to 4.0 Vdc (typical) | Vdc |
| Input Voltage “1” Level (VIH) | 3.5 to 11 Vdc (typical) | Vdc |
| Zener Voltage (VZ) | 6.7 to 7.3 V | V |
Key Features
- Buffered Outputs Compatible with Low-Power TTL
- Diode Protection on All Inputs
- Supply Voltage Range = 3.0 to 18 V
- Pin-for-Pin Replacement for CD4046B
- Phase Comparator 1 is an Exclusive OR Gate and is Duty Cycle Limited
- Phase Comparator 2 Switches on Rising Edges and is not Duty Cycle Limited
- NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC-Q100 Qualified and PPAP Capable
- These Devices are Pb-Free and are RoHS Compliant
Applications
- FM and FSK modulation and demodulation
- Frequency synthesis and multiplication
- Frequency discrimination
- Tone decoding
- Data synchronization and conditioning
- Voltage-to-frequency conversion
- Motor speed control
Q & A
- What is the MC14046B?
The MC14046B is a phase locked loop (PLL) integrated circuit that includes two phase comparators, a voltage-controlled oscillator (VCO), a source follower, and a zener diode.
- What is the supply voltage range of the MC14046B?
The supply voltage range is from 3.0 to 18 V.
- What types of phase comparators does the MC14046B have?
The MC14046B has two phase comparators: Phase Comparator 1, which is an exclusive OR gate and duty cycle limited, and Phase Comparator 2, which switches on rising edges and is not duty cycle limited.
- What is the purpose of the zener diode in the MC14046B?
The zener diode can be used to assist in power supply regulation.
- Is the MC14046B compatible with low-power TTL logic?
- What are some common applications of the MC14046B?
Applications include FM and FSK modulation and demodulation, frequency synthesis and multiplication, frequency discrimination, tone decoding, data synchronization and conditioning, voltage-to-frequency conversion, and motor speed control.
- Is the MC14046B Pb-free and RoHS compliant?
- What is the operating temperature range of the MC14046B?
The operating temperature range is from -55 to +125°C.
- How does the inhibit input affect the VCO and source follower?
The inhibit input, when high, disables the VCO and source follower to minimize standby power consumption.
- Is the MC14046B qualified for automotive applications?
