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Programmable Sound Chip

Waytronic has a big programmable sound chip family. They are generally used in applications that need to repeatedly change voice content, such as, home appliances that require voice prompts from multiple languages, advertising machines that frequently replace sound, and various voice prompt devices that require online update remotely.

WT588F Series

Image Part Number Voice Capacity Audio Output Interface Key Features
WT588F02B-8S WT588F02B-8S 170s DAC / PWM Button / MCU Programmable voice functions
WT588f04A-8S WT588f04A-8S 340s DAC / PWM Button/MCU -
WT588F08A-8S WT588F08A-8S 680s DAC / PWM Button/MCU Large voice storage capacity
WT588F40B-16S WT588F40B-16S 3400s DAC / PWM MCU Easy MCU integration
wt588f80b-16s WT588F80B-16S 6800s DAC/PWM MCU -
WT588F02BP-14S WT588F02BP-14S 170s PWM:3W MCU Built-in amplifier
WT588F04AP-14S WT588F04AP-14S 340s PWM:3W MCU -
WTN6040F-8S WTN6040F-8S 40s DAC/PWM + Amplifier MCU Direct speaker drive
WTN6040FP-14S WTN6040FP-14S 40s PWM:3W MCU Direct speaker drive

Application

Electronic locks, small home appliances, home electronic medical devices, security systems, medical equipment, weighing instruments, consumer electronics, charging piles, automotive electronics, alarms, doorbells, etc.

WT2003H Series

Image Part Number Decode Format Storage Support Audio Output Package
WT2003H4-16S WT2003H4-16S MP3 / WAV Built-in: 180s
External: SPI-Flash (8M~256Mbit), TF Card, USB Drive
0.5W PWM
16-bit DAC
SOP16
WT2003H4-24SS WT2003H4-24SS MP3 / WAV Built-in: 180s
External: SPI-Flash (8M~256Mbit), TF Card, USB Drive
0.5W PWM
16-bit DAC
SSOP24
WT2003HP8-32N WT2003HP8-32N MP3 / WAV Built-in: 180s
External: SPI-Flash (8M~256Mbit), TF Card, USB Drive
0.5W PWM
16-bit DAC
QFN32
(4×4mm)

Application

Recordable greetingi cards, telephone exchanges, recording machine cores, security equipment, toys, etc.

Why Choose WTSOUNDIC Programmable Sound Chips

USB Reprogrammable

Update voice content via USB, UART, SPI, or OTA without replacing chips.

Low MOQ Support

Start from small batches with flexible MOQ options for prototypes, testing, and mass production.

Complete Product Family

Full range of programmable sound chips from entry-level models to advanced OTA solutions.

Built-in Amplifier Options

Drive 1-3W speakers directly without external amplifiers, reducing BOM cost and PCB space.

Direct Factory Support

Get FAE support for chip selection, firmware customization, and production troubleshooting.

Proven Reliability

Trusted in millions of devices worldwide with long data retention and reliable performance.

Frequently Asked Questions (FAQ)

PWM output directly drives speakers with minimal external components (just RC filtering)—ideal for cost-sensitive applications with simple voice prompts. DAC output requires an external amplifier but delivers superior audio quality, suitable for music playback and high-fidelity voice. Both our WT588F and WT2003H series support dual output modes.

Yes! Our programmable sound chips support multiple update methods:

• In-board update: Via MCU using SPI/UART interface
• PC update: Connect via USB for batch programming
• U-disk update: Plug in USB drive for automatic content refresh
• Bluetooth OTA: Wireless updates up to 10 meters (WT2605Cx/WT2801Ax models)
• MCU update: Host MCU writes new audio data via UART

This makes field updates, product upgrades, and multi-language deployment
extremely convenient.

Our MOQs are industry-leading low:

• WT2003H series: 100 units
• WT588F series: 500 units
• WTN6 series: 1,000-3,000 units (depending on model)

This is significantly lower than traditional OTP voice chips (typically
3,000-5,000 MOQ), making our programmable solutions ideal for startups,
prototypes, and niche markets.

Absolutely. Our chips support wide voltage ranges that perfectly match
lithium battery operation:

• WTN6/WT588F: 2.4V – 5.5V (covers 3.0V – 4.2V Li-ion range)
• WT2003H: 2.4V – 5.2V

Plus, with standby current below 5µA, battery-powered devices like wireless
doorbells can run for over a year on two AA batteries without replacement.

Yes, the WT2003H series (industrial-grade) supports both MP3 and WAV
formats with sampling rates up to 44.1kHz—equivalent to CD-quality audio. For
commercial-grade products, the WT588F series offers 16-bit PWM/DAC output,
delivering far better audio quality than typical 8-bit or 12-bit solutions.

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