SN74LV4046AD

TEXAS INSTRUMENTS  SN74LV4046AD  逻辑芯片, 锁相环, CMOS 带压控振荡器, 高速, 16SOIC

The is a high-speed silicon-gate CMOS PLL with VCO that is pin compatible with the CD4046B and the CD74HC4046. The device is specified in compliance with JEDEC Std 7. The SN74LV4046A is a phase-locked loop PLL circuit that contains a linear voltage-controlled oscillator VCO and three different phase comparators PC1, PC2 and PC3. A signal input and a comparator input are common to each comparator. 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 SN74LV4046A forms a second-order loop PLL. The excellent VCO linearity is achieved by the use of linear operational amplifier techniques. Various applications include telecommunications, digital phase-locked loop and signal generators.

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Excellent VCO frequency linearity

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