SN74LV4046A_15 Datasheet, PDF (1/26 Pages) Texas Instruments – High-Speed CMOS Logic Phase-Locked Loop

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SN74LV4046A
SCES656D – FEBRUARY 2006 – REVISED SEPTEMBER 2015
SN74LV4046A High-Speed CMOS Logic Phase-Locked Loop With VCO
1 Features
• Choice of Three Phase Comparators
– Exclusive OR
– Edge-Triggered J-K Flip-Flop
– Edge-Triggered RS Flip-Flop
• Excellent VCO Frequency Linearity
• VCO-Inhibit Control for ON/OFF Keying and for
Low Standby Power Consumption
• Optimized Power-Supply Voltage Range From 3 V
to 5.5 V
• Wide Operating Temperature Range . . . –40°C to
125°C
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
1
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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
SOP (16)
7.70mm x 10.20mm
SN74LV4046A
SOIC (16)
6.00mm x 9.90mm
TSSOP (16)
6.40mm x 5.00mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
SN74LV4046A Functional Block Diagram
2 Applications
• Telecommunications
• Signal Generators
• Digital Phase-Locked Loop
3 Description
The SN74LV4046A is a high-speed silicon-gate
CMOS device 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.
SIG_IN 14
COMP_IN 3
VCO_IN 9
INH 5
C1_A 6
C1_B 7
V_CC
16
Phase
Comparator
1
Phase
Comparator
2
Phase
Comparator
3
Voltage
Controlled
Oscillator
2 PC1_OUT
13 PC2_OUT
1 PCP_OUT
15 PC3_OUT
4 VCO_OUT
10 DEM_OUT
R₁ 11
R₂ 12
8
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.