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PLL1705DBQ

TIPLL1705DBQ

Texas Instruments
PLL Multi-Clock Generator IC 36.87MHz 1 20-SSOP (0.154", 3.90mm Width)
NRND5,778 in stock
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Overview

The PLL1705DBQ is a high-performance phase-locked loop (PLL) multi-clock generator specifically designed for digital audio applications. It generates four different system clock frequencies from a single 27-MHz master clock input, achieving zero PPM error across multiple sampling frequencies. The device operates from a single 3.3V supply and provides low-jitter CMOS outputs suitable for audio DACs and ADCs.

Why Choose This Part

The PLL1705DBQ features an exceptionally low typical jitter of 50 ps, which is critical for maintaining high signal-to-noise ratios in audio signal paths. Its ability to generate zero PPM error clocks ensures that digital audio systems remain perfectly synchronized without drift over time.

Applications

Digital Audio Workstations
Generating precise master clocks for multi-channel audio interfaces requiring low jitter and synchronized sampling rates.
DVD and Blu-ray Players
Synchronizing audio and video clock signals with zero PPM error for high-fidelity playback.
AV Receivers
Providing multiple clock outputs for simultaneous use by DSPs and high-resolution DACs.
CD and MP3 Players
Supplying stable clock sources for standard sampling rates such as 44.1kHz and 48kHz.

Key Specifications

PLL Yes
Type PLL Multi-Clock Generator
Input CMOS, Crystal
Output CMOS
Mounting Type Surface Mount
Package / Case 20-SSOP (0.154", 3.90mm Width)
Frequency - Max 36.87MHz
Voltage - Supply 2.7V ~ 3.6V
Divider/Multiplier Yes/No
Number of Circuits 1
Ratio - Input:Output 1:6
Operating Temperature -25degC ~ 85degC
Supplier Device Package 20-SSOP
Differential - Input:Output No/No

Getting Started

To implement this IC, provide a stable 27-MHz crystal or CMOS clock source to the master clock input. Configure the output frequencies via the parallel control pins or the serial interface (I2C/SPI) to match your target sampling rate. Ensure the 3.3V supply is well-decoupled with 0.1uF ceramic capacitors located as close to the VDD pins as possible.

Also Consider

PLL1706DBQ TITexas Instruments - Offers similar functionality but supports different clock frequency sets often used in European broadcast standards.

Categories

Clocks & Timing > Clock Generators & PLLs Clocks & Timing