CD4046B CMOS Micropower Phase-Locked Loop |


CMOS Micropower Phase-Locked Loop

CMOS Micropower Phase-Locked Loop - CD4046B


CD4046B CMOS Micropower Phase-Locked Loop (PLL) consists of a low-power, linear voltage-controlled oscillator (VCO) and two different phase comparators having a common signal-input amplifier and a common comparator input. A 5.2-V zener diode is provided for supply regulation if necessary.

The CD4046B types are supplied in 16-lead hermetic dual-in-line ceramic packages (F3A suffix), 16-lead dual-in-line plastic packages (E suffix), 16-lead small-outline packages (NSR suffix), and 16-lead thin shrink small-outline packages (PW and PWR suffixes).


  • Very low power consumption:
       70 µW (typ.) at VCO fo = 10 kHz, VDD = 5 V
  • Operating frequency range up to 1.4 MHz (typ.) at VDD = 10 V, RI = 5 k
  • Low frequency drift: 0.04%/°C (typ.) at VDD = 10 V
  • Choice of two phase comparators:
    • Exclusive-OR network (I)
    • Edge-controlled memory network with phase-pulse output for lock indication (II)
  • High VCO linearity: <1% (typ.) at VDD = 10 V
  • VCO inhibit control for ON-OFF keying and ultra-low standby power consumption
  • Source-follower output of VCO control input (Demod. output)
  • Zener diode to assist supply regulation
  • Standardized, symmetrical output characteristics
  • 100% tested for quiescent current at 20 V
  • 5-V, 10-V, and 15-V parametric ratings
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"
  • Applications
    • FM demodulator and modulator
    • Frequency synthesis and multiplication
    • Frequency discriminator
    • Data synchronization
    • Voltage-to-frequency conversion
    • Tone decoding
    • FSK - Modems
    • Signal conditioning
    • (See ICAN-6101) "RCA COS/MOS Phase-Locked Loop - A Versatile Building Block for Micropower Digital and Analog Applications"


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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Voltage (Nom) (V) Bits (#) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Operating temperature range (C) Package Group
CD4046B Order now CD4000     3     18     5
1     8     1     300     4     -4     -55 to 125     PDIP | 16
SO | 16
TSSOP | 16