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CD4046BCMX датащи(PDF) 1 Page - Fairchild Semiconductor |
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CD4046BCMX датащи(HTML) 1 Page - Fairchild Semiconductor |
1 / 14 page © 2002 Fairchild Semiconductor Corporation DS005968 www.fairchildsemi.com October 1987 Revised March 2002 CD4046BC Micropower Phase-Locked Loop General Description The CD4046BC micropower phase-locked loop (PLL) con- sists of a low power, linear, voltage-controlled oscillator (VCO), a source follower, a zener diode, and two phase comparators. The two phase comparators have a common signal input and a common comparator input. The signal input can be directly coupled for a large voltage signal, or capacitively coupled to the self-biasing amplifier at the sig- nal input for a small voltage signal. Phase comparator I, an exclusive OR gate, provides a digi- tal error signal (phase comp. I Out) and maintains 90 ° phase shifts at the VCO center frequency. Between signal input and comparator input (both at 50% duty cycle), it may lock onto the signal input frequencies that are close to har- monics of the VCO center frequency. Phase comparator II is an edge-controlled digital memory network. It provides a digital error signal (phase comp. II Out) and lock-in signal (phase pulses) to indicate a locked condition and maintains a 0 ° phase shift between signal input and comparator input. The linear voltage-controlled oscillator (VCO) produces an output signal (VCO Out) whose frequency is determined by the voltage at the VCOIN input, and the capacitor and resis- tors connected to pin C1A, C1B, R1 and R2. The source follower output of the VCOIN (demodulator Out) is used with an external resistor of 10 k Ω or more. The INHIBIT input, when high, disables the VCO and source follower to minimize standby power consumption. The zener diode is provided for power supply regulation, if necessary. Features s Wide supply voltage range: 3.0V to 18V s Low dynamic power consumption: 70 µW (typ.) at fo = 10 kHz, VDD = 5V s VCO frequency: 1.3 MHz (typ.) at VDD = 10V s Low frequency drift: 0.06%/ °C at V DD = 10V with temperature s High VCO linearity: 1% (typ.) Applications • FM demodulator and modulator • Frequency synthesis and multiplication • Frequency discrimination • Data synchronization and conditioning • Voltage-to-frequency conversion • Tone decoding • FSK modulation • Motor speed control Ordering Code: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Order Number Package Number Package Description CD4046BCM M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow CD4046BCN N16E 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide |
Аналогичный номер детали - CD4046BCMX |
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Аналогичное описание - CD4046BCMX |
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