Overview
The CD74HC4046APWR is a high-speed CMOS logic phase-locked-loop (PLL) integrated circuit manufactured by Texas Instruments. This device is part of the HC4046A series and is known for its high performance and versatility in various frequency management applications. It features a linear voltage-controlled oscillator (VCO) and three different phase comparators, making it suitable for a wide range of tasks including frequency synthesis, modulation, and demodulation.
Key Specifications
| Specification | Value |
|---|---|
| PLL Type | Frequency Synthesis |
| Frequency | Up to 18 MHz (Typ) at VCC = 5V |
| No. of Pins | 16 Pins |
| PLL Case Style | TSSOP |
| Supply Voltage Min | 2V |
| Supply Voltage Max | 6V |
| Operating Temperature Min | -55°C |
| Operating Temperature Max | 125°C |
| Fanout (Over Temperature Range) | Standard Outputs: 10 LSTTL Loads, Bus Driver Outputs: 15 LSTTL Loads |
| Power Supply Voltage Range (VCO Section) | 3V to 6V |
| Power Supply Voltage Range (Digital Section) | 2V to 6V |
Key Features
- Choice of three phase comparators: EXCLUSIVE-OR, Edge-Triggered JK Flip-Flop, and Edge-Triggered RS Flip-Flop
- Excellent VCO frequency linearity achieved by linear op-amp techniques
- VCO-Inhibit control for ON/OFF keying and low standby power consumption
- Minimal frequency drift
- Wide operating temperature range: -55°C to 125°C
- Balanced propagation delay and transition times
- Significant power reduction compared to LSTTL logic ICs
- High noise immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
Applications
- FM 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 CD74HC4046APWR used for? The CD74HC4046APWR is used in various applications including FM modulation and demodulation, frequency synthesis, tone decoding, and motor-speed control.
- What is the maximum operating frequency of the CD74HC4046APWR? The maximum operating frequency is up to 18 MHz (Typ) at VCC = 5V.
- What are the different phase comparators available in the CD74HC4046APWR? The device features three phase comparators: EXCLUSIVE-OR, Edge-Triggered JK Flip-Flop, and Edge-Triggered RS Flip-Flop.
- What is the operating temperature range of the CD74HC4046APWR? The operating temperature range is -55°C to 125°C.
- What is the power supply voltage range for the VCO section? The power supply voltage range for the VCO section is 3V to 6V.
- Is the CD74HC4046APWR RoHS compliant? The RoHS compliance status for this part is unknown, but it is noted as RoHS Phthalates Compliant.
- What package type does the CD74HC4046APWR come in? The CD74HC4046APWR comes in a TSSOP (Thin Shrink Small Outline Package) with 16 pins.
- How does the CD74HC4046APWR achieve excellent VCO frequency linearity? The excellent VCO frequency linearity is achieved by the use of linear op-amp techniques.
- What are the fanout capabilities of the CD74HC4046APWR? The device can drive up to 10 LSTTL loads for standard outputs and up to 15 LSTTL loads for bus driver outputs.
- What are some of the key advantages of the CD74HC4046APWR over LSTTL logic ICs? The CD74HC4046APWR offers significant power reduction and higher noise immunity compared to LSTTL logic ICs.
