PLL1705S1DBQR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The PLL1705S1DBQR is a multi-output audio PLL clock generator from Texas Instruments that synthesizes standard audio sample-rate clocks at 256xFs and 384xFs from a 27 MHz crystal reference. It supports 32 kHz, 44.1 kHz, and 48 kHz sample rates with low jitter output in a compact SOP package. Ideal for digital audio systems including DACs, ADCs, and audio codecs in consumer and professional equipment.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- PLL1705S1DBQR Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PLL1705S1DBQR?
- Generates 256xFs and 384xFs master clocks for 32, 44.1, and 48 kHz audio sample rates
- Low-jitter PLL output suitable for high-fidelity 24-bit audio DAC and ADC clocking
- 27 MHz crystal reference input with on-chip PLL loop filter
- Multiple simultaneous clock outputs for complex audio signal chains
- Small outline package minimizing PCB footprint in audio equipment
- 3.3V single-supply operation for compatibility with modern audio SoCs
What is PLL1705S1DBQR used for?
The PLL1705S1DBQR is designed for digital audio systems that require precise multi-rate master clocking, including CD players, DVD receivers, digital mixing consoles, and home theater audio processors. Its ability to generate both 256xFs and 384xFs clocks from a single 27 MHz reference simplifies board design by eliminating multiple crystal oscillators. Professional audio interface cards and consumer set-top boxes also use this device to synchronize DAC and ADC peripherals operating at 32 kHz, 44.1 kHz, or 48 kHz sample rates.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the PLL1705S1DBQR datasheet?
PLL1705S1DBQR Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PLL1705S1DBQR?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
Which audio sample rates does the PLL1705S1DBQR support and what clock multiples does it output?
The PLL1705S1DBQR supports 32 kHz, 44.1 kHz, and 48 kHz audio sample rates and provides master clock outputs at 256xFs and 384xFs. For 48 kHz operation this yields clocks of 12.288 MHz and 18.432 MHz, which are industry-standard frequencies required by most professional-grade audio DAC and ADC ICs.
What reference clock does the PLL1705S1DBQR require, and how does its PLL minimize output jitter?
The device uses a 27 MHz crystal as its reference input, a common frequency shared with video and multimedia SoCs. The internal PLL synthesizes target audio clock frequencies with jitter typically below 200 ps RMS, ensuring 24-bit DAC noise floors are not degraded by clock-induced distortion in high-fidelity audio playback.
How does selecting the PLL1705S1DBQR over discrete crystal oscillators reduce BOM complexity in an audio design?
A single PLL1705S1DBQR replaces 3 separate crystal oscillators for 32 kHz, 44.1 kHz, and 48 kHz Fs domains, cutting BOM line items and reducing PCB area by more than 50 mm squared. The device runs from a 3.3V rail and generates all required output frequencies simultaneously, simplifying layout in multi-rate audio systems.
In what end products is the PLL1705S1DBQR typically deployed?
The PLL1705S1DBQR is found in CD players, AV receivers, digital mixing consoles, professional audio interface cards, and set-top box audio subsystems operating at 48 kHz or 44.1 kHz sample rates. Any product combining 24-bit broadcast and consumer audio simultaneously benefits from its multi-rate 256xFs and 384xFs clock outputs from a single 27 MHz reference.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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