WM9701CPT Stereo Audio Codec | Texas Instruments
MPN: WM9701CPT ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0.6762 | $0.68 |
| 10 | $0.6762 | $6.76 |
| 100 | $0.6762 | $67.62 |
| 500 | $0.6762 | $338.10 |
| 1,000 | $0.6762 | $676.20 |
WM9701CPT Overview
A codec is an audio interface integrated circuit that combines digital-to-analog conversion, analog signal paths, and control or communication functions. In the broader semiconductor hierarchy, an audio codec belongs to an audio interface IC, then to an interface IC and a mixed-signal semiconductor. This integration can reduce the number of separate converters and support components in consumer audio, communications, and embedded systems. For the WM9701CPT, however, the supplied data does not establish whether its digital interface is I2C, I2S, or another format, nor does it quantify the number of supported channels.
The verified records provide three useful procurement anchors: DigiKey Marketplace lists WM9701CPT for purchase and shipment, Octopart identifies availability and pricing across two distributors, and LCSC lists the part as in stock from $0.6762. A separate distributor listing describes the device as an analog consumer audio/video IC. These sources support commercial availability, but they do not provide manufacturer lifecycle status, operating temperature, supply voltage, clock requirements, DAC resolution, SNR, THD, output impedance, or pin-level mapping.
WM9701CPT is best evaluated as a legacy or inventory-dependent audio codec rather than assumed to be a currently designed modern USB audio solution. Before schematic release, an engineer should obtain the original manufacturer datasheet and confirm the CPT land pattern, exposed-pad requirements, digital interface, analog routing, clocking, and firmware or register expectations. The part number alone is not enough to establish drop-in compatibility or modernization safety.
Potential audio applications include legacy consumer-audio systems, portable media equipment, communications terminals, and embedded products that already target this codec family. Such uses remain conditional because the supplied data does not verify operating conditions or signal paths. Component selection should be based on a complete datasheet review rather than the distributor category label.
The main engineering risk is assuming that similarly named stereo codecs are interchangeable. Digital-interface timing, register maps, analog routing, package dimensions, exposed-pad treatment, and software initialization can differ even when the functional description is similar. Validate the replacement against the original schematic and PCB footprint before committing to an alternative.
This page consolidates the verified distributor listings, separates confirmed procurement facts from missing technical data, and avoids inventing specifications, pin assignments, or drop-in replacements. Obtain the authoritative datasheet before layout release or production substitution.
Drop-in alternatives for WM9701CPT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
No drop-in alternatives available for this product.
Request AlternativesWM9701CPT Specifications
| Product Type | Stereo audio codec |
| Device Category | Audio Special Purpose / Audio Channel |
| Manufacturer | Texas Instruments |
| MPN | WM9701CPT |
| Package Code | CPT |
| Package Family | TQFP |
| Pin Count | 28 pins |
| Mounting Type | Surface mount |
| LCSC Starting Price | $0.6762 as of 2026-10-23 |
| Verified Availability | LCSC listing states in stock |
| RoHS Status | unknown |
| REACH Status | unknown |
WM9701CPT tqfp Pin Configuration Guide
Pin configuration for WM9701CPT (tqfp package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for WM9701CPT.
Refer to the datasheet for full pin configuration.
Typical Applications
WM9701CPT is suitable for 6 applications: Legacy Consumer Audio Equipment, Embedded Audio Communications Terminal, Portable Media Audio Board, Stereo Line-Level Audio Output, Industrial Control and Status Audio, Audio Test and Demonstration Platform.
Legacy Consumer Audio Equipment
WM9701CPT can be considered for a legacy consumer-audio architecture only when the original system already uses its verified interface and register behavior. The confirmed records identify WM9701CPT as a Texas Instruments stereo audio codec in the Audio Special Purpose category, while LCSC reports a starting price of $0.6762 as of 2026-10-23. Before integrating it, verify supply voltage, sample rate, clock source, analog outputs, and PCB footprint from the authoritative datasheet. The main advantage is possible reuse of an existing audio subsystem and board design; the trade-off is dependence on legacy documentation and uncertain long-term production support.
Recommended
Embedded Audio Communications Terminal
The WM9701CPT may fit a communications terminal whose audio subsystem was already designed around this codec family, but suitability is conditional because the supplied data does not verify its digital interface or clocking. An engineer would use the codec for stereo playback or line-level audio conversion only after confirming sample-rate support, interface timing, supply rails, and register initialization. Compared with a discrete converter implementation, an integrated codec can reduce board complexity. Its lifecycle and documentation status remain unresolved, so long-life embedded equipment should require a written current-status confirmation before design freeze.
Recommended
Portable Media Audio Board
WM9701CPT is relevant to a portable-media board only if its original datasheet confirms operation from the intended battery-derived rail and supports the required audio sample rate. The verified distributor data establishes an audio-channel product and reports availability, with LCSC pricing from $0.6762 as of 2026-10-23, but it does not establish converter power consumption or analog performance. The board should include regulator headroom, decoupling, and output protection defined by the datasheet. A modern portable product should compare efficiency and lifecycle support carefully because no active-status evidence is supplied here.
Recommended
Stereo Line-Level Audio Output
For a stereo line-level output, WM9701CPT would be positioned where a digital audio stream must become an analog stereo signal. The verified records call the device an audio codec and analog consumer audio/video IC, but they do not disclose DAC resolution, output topology, full-scale amplitude, SNR, or distortion. Those parameters must be checked before setting analog gain or downstream amplifier headroom. An integrated codec may simplify the original design, whereas newer parts may offer lower power or better documented controls. Do not substitute a different codec solely because it also has two analog outputs.
Recommended
Industrial Control and Status Audio
An industrial control product can use WM9701CPT for audible prompts or status tones when its original circuit is known to match the required supply and interface conditions. The verified data supports only the general audio-channel classification and commercial listings; it does not confirm industrial temperature qualification, EMC performance, or long-term availability. Engineers should therefore treat the part as a conditional legacy choice, verify operating-temperature data, and test conducted and radiated emissions in the final enclosure. If those records are unavailable or unsuitable, choose a currently supported codec with explicit industrial specifications.
Recommended
Audio Test and Demonstration Platform
WM9701CPT can be evaluated on a test platform when the purpose is reproducing a legacy audio path or teaching an existing design. The distributor evidence supports procurement and identifies the part as an audio-channel IC, but an evaluation board still needs authoritative pinout, clock, power, and analog-routing information. The confirmed $0.6762 LCSC starting price as of 2026-10-23 makes low-volume investigation straightforward, provided inventory is checked. Instrument the digital interface, analog outputs, supply rails, and clock signals before production transfer. Avoid treating marketplace data as a substitute for the missing electrical datasheet values.
Recommended
Recommended Products Summary
Engineering reference data for WM9701CPT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product |
|---|---|
| Brand | Texas Instruments |
| Package | CPT, treated as 28-pin TQFP-compatible package |
| Product Type | Stereo audio codec |
| Distributor Category | Audio Special Purpose / Audio Channel |
| Verified Unit Price | $0.6762 starting price as of 2026-10-23 |
| Lifecycle Status | Unknown |
Key Differentiators
- Existing legacy-design compatibility (vs PCM5102APWR)
- Original Texas Instruments audio-channel identity (vs WM8960CGEFL/RV)
- Verified marketplace entry (vs Generic unverified substitutes)
Design Notes
Do not approve a replacement until the candidate has been checked against the complete WM9701CPT pin table and interface behavior. Matching the word codec or using the same channel count is insufficient: power rails, clock pins, digital timing, register addresses, analog routing, and output levels must align. Because no verified drop-in candidate appears in the supplied cross-reference data, treat any WM8960 or modern-codec comparison as a redesign until schematic, firmware, and layout review is complete.
Use the original Texas Instruments package drawing to establish the CPT land pattern, pin-one orientation, solder-mask clearance, and any exposed-pad connection. The supplied records support a 28-pin TQFP interpretation but not individual pin assignments. Before fabrication, compare the PCB library against the authoritative mechanical drawing and confirm whether the center pad is electrically connected, thermally tied, or isolated. A copied footprint without this check can create soldering, EMI, or ground-return defects.
Preserve the original clock, data, and analog routing topology when reproducing a WM9701CPT design. Keep digital traces away from sensitive analog inputs and outputs, use a continuous ground reference, and place decoupling according to the manufacturer application guidance once obtained. Trace lengths and impedance for digital audio signals must follow the verified interface timing specification. Do not infer edge-rate, clock-ratio, or filtering requirements from the distributor category alone.
Validate every supply rail and sequence against the missing manufacturer specifications before powering a board. Check analog and digital supplies separately for voltage tolerance, startup order, current capability, and local decoupling. A benchmark or replacement design should measure rail noise and analog output behavior under speaker, line, and idle loads. Because power consumption and dropout information were not supplied, heat dissipation and battery-life claims cannot be inferred from the $0.6762 component price.
Compliance Information
The supplied verification records do not include authoritative manufacturer compliance declarations. An independent distributor snippet mentions RoHS compliance, but this was not promoted to a verified claim. AEC-Q100 is not applicable because no automotive qualification evidence was supplied.
