PGA2310UA/1K.pdf
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PGA2310UA/1K belongs to TI's PGA2310 family of stereo volume control ICs. It is typically used where designers want a "digital control + analog signal path" approach: the volume is set in precise steps while preserving the sound quality expected from premium analog stages.
Based on the provided specification snapshot, PGA2310 offers two independent audio channels, a broad +31.5 dB to −95.5 dB gain/attenuation range (0.5 dB per step), and strong measured audio performance such as 120 dB dynamic range and very low THD+N.
The device is supplied in a compact 16-SOIC package, convenient for mainstream audio PCB assembly and high-volume production.
0.5 dB step control across a wide range supports smooth user experience, accurate calibration, and predictable gain setting in professional audio and measurement-grade front ends.
With THD+N at 1 kHz: 0.0004% and dynamic range: 120 dB (as provided), PGA2310 is well suited for premium signal chains that are sensitive to noise and harmonic artifacts.
Strong interchannel crosstalk performance (provided spec: −126 dBFS at 1 kHz) helps keep stereo imaging clean in mixers, DAC preamps, active speakers, and studio equipment.
16-SOIC is widely supported by assembly houses and is a practical choice for stable manufacturing and hand-prototype debugging.
Gain & attenuation range of +31.5 dB to −95.5 dB with 0.5 dB steps enables repeatable, programmable audio level control.
Very low distortion (provided: 0.0004% THD+N @ 1 kHz) helps maintain transparency in the analog signal path.
Supports a broad operating environment (provided: −40°C to +85°C), suitable for demanding audio systems and embedded equipment.
| Parameter | Value / Condition |
|---|---|
| Number of Channels | 2 |
| Gain & Attenuation Range | +31.5 dB to −95.5 dB (0.5 dB steps) |
| THD + N at 1 kHz | 0.0004% |
| Dynamic Range | 120 dB |
| Interchannel Crosstalk at 1 kHz | −126 dBFS |
| Gain Error (Gain = 31.5 dB) | ±0.05 dB |
| Voltage Swing (Max Supply) | 27 VPP |
| Load Capacitance | 0.001 µF |
| Power Supply | ±15 V |
| Operating Temperature Range | −40°C to +85°C |
| Base Product Number | PGA2310 |
| Package | 16-SOIC |
Based on your "查替代" screenshot context, the following parts are commonly presented as functional alternatives in the same "audio special-purpose" category. Always verify interface, gain law/steps, supply rails, and pinout before substitution:
Practical selection tip: if you are replacing PGA2310 in an existing audio volume control design, prioritize same-family ordering variants first; cross-vendor "functional similar" devices may differ greatly in control method and system behavior.
Texas Instruments (TI) is a global analog and embedded semiconductor manufacturer with a long history in precision signal-chain, audio, power management, interface, and industrial control technologies. TI audio components are widely adopted in professional audio, consumer electronics, and embedded systems thanks to mature documentation, stable supply, and strong ecosystem support.
For production designs, it is recommended to validate key audio metrics (noise floor, THD+N, channel matching), as well as power-up behavior and grounding/layout best practices, using the latest TI documentation.
Programmable gain staging for studio mixers, mic/line preamps, and outboard gear where repeatable level control and low distortion are essential.
Stereo attenuation/trim in broadcast routers, distribution amplifiers, and audio matrix systems that require precise channel balance and strong crosstalk performance.
Volume control stage in DAC/preamplifier combos, integrated amplifiers, active speakers, and home-theater systems seeking clean analog performance.
Controlled output level for embedded HMIs, intercoms, industrial audio alerts, and test fixtures operating across a wide temperature range.
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Pricing and inventory for PGA2310UA/1K fluctuate and are updated periodically (typically within 24 hours). Quotations generally remain valid for 5 days unless otherwise stated.
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We perform Pre-Shipment Inspection (PSI) on randomly selected units before shipping. If there is an issue with PGA2310UA/1K, returns/replacements are accepted when:
Steps: (1) Inform us within 90 days; (2) Obtain Return Authorization (RMA) before sending items back.
Please contact us for technical documents and support related to Texas Instruments PGA2310UA/1K, including pin diagrams and datasheets. Our team will respond promptly.
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