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PLL1708DBQ

TIPLL1708DBQ

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

The PLL1708DBQ is a high-performance Phase-Locked Loop (PLL) multi-clock generator designed specifically for digital audio applications. It generates multiple system clock frequencies from a single 27MHz master clock input, achieving zero PPM error for standard audio sampling rates. This integration eliminates the need for multiple discrete crystal oscillators in complex multimedia systems.

Why Choose This Part

The device features zero PPM clock error for standard sampling frequencies, ensuring perfect synchronization between audio components. It includes a power-down mode that reduces current consumption to 350uA and operates from a single 3.3V supply (2.7V to 3.6V range), making it suitable for modern low-voltage digital systems.

Applications

DVD and HDD Recorders
Provides synchronized timing for video processing and high-fidelity audio capture in consumer recording equipment.
Multimedia PC Sound Cards
Generates low-jitter master clocks for high-end audio interfaces and add-on DSP cards.
Digital Audio Receivers
Supplies precise sampling clocks for multi-channel DACs and audio processing units.

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

Engineers should interface the PLL1708DBQ via its serial control port to configure the internal dividers and output frequency sets. Ensure the 27MHz master clock source is high-quality to maintain the device low-jitter performance. Layout should follow standard high-frequency guidelines, with decoupling capacitors placed as close as possible to the VDD pins.

PLL1708 Family

Also available as: PLL1708DBQR

Also Consider

Si5351A Skyworks Solutions Inc. - An I2C configurable clock generator that can generate up to 8 non-integer-related frequencies from 8kHz to 160MHz.

Categories

Clocks & Timing > Clock Generators & PLLs Clocks & Timing