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PLL1708DBQR

TIPLL1708DBQR

Texas Instruments
PLL Multi-Clock Generator IC 36.87MHz 1 20-SSOP (0.154", 3.90mm Width)
NRND45,291 in stock
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Overview

The PLL1708DBQR is a multi-clock generator IC designed to provide multiple system clocks for high-performance audio applications. It generates four different audio system clocks from a single crystal or CMOS input, supporting frequencies up to 36.87MHz. The device features integrated PLLs and can be controlled via I2C or SPI interfaces to manage clock distribution.

Why Choose This Part

The PLL1708DBQR offers a highly integrated solution that eliminates the need for multiple discrete oscillators in complex audio designs. It supports a wide supply voltage range from 2.7V to 3.6V and includes a power-down mode that reduces current consumption to 350uA for energy-sensitive applications.

Applications

Digital Audio Systems
Generating master clocks for CD players, DVD players, and high-fidelity home theater receivers.
Audio Mixing Consoles
Providing synchronized clock signals to multiple digital signal processors and high-resolution DACs.
Professional Audio Interfaces
Used in PC-based audio interfaces to maintain low-jitter timing across sampling rates of 32kHz, 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 integrate this device, provide a 27MHz crystal or an external CMOS clock to the input pins and configure the desired output frequencies via the I2C or SPI control bus. Engineers should pay close attention to the PCB layout of the clock output traces to minimize EMI and jitter, ensuring clean signal delivery to audio converters.

PLL1708 Family

Also available as: PLL1708DBQ

Also Consider

Si5351A Skyworks Solutions Inc. - Provides a wider range of output frequencies and more independent PLLs for general-purpose timing applications.

Categories

Clocks & Timing > Clock Generators & PLLs Clocks & Timing Audio & Video > Audio Codecs & DACs