Juchip Semiconductor
JSM2691
Smart Microphone
Pickup, VAD and keyword spotting complete offline in one die - the host wakes only on a hit, at an estimated ~0.195 mA always-on.
0.195 mAVAD standby
30offline keywords
8 msrecognition
In supply - samples available
JUCHIP & MEMS Microphone & Sensor · Est. 2024
A soft word still deserves to be heardPrecision MEMS. Acoustic Intelligence.
Juchip Semiconductor designs, tests and supplies high-performance MEMS microphones and sensor chips: a full 56-66 dB(A) silicon-mic family as the foundation, with the JSM2691 smart microphone and JSZ2698 hearing-aid module taking devices from hearing to understanding - for TWS, wearables, smart home, automotive and assistive listening.
- Annual Volume
- >100Munits
- Top SNR
- 0dB(A)
- ISO Certification
- ISO9001
Edge Intelligence
Putting Intelligence into Sensors
Sensors are moving from capturing sound to understanding it. Edge intelligence is the direction of Juchip's product line.
JSZ2698
Hearing-Aid Audio Module
8-channel WDRC, adaptive NR and a direct-driven receiver close the loop in-ear - a single zinc-air cell lasts for months.
8 bandsWDRC
~0.9 mATotal supply
1.5-2 moCell life
Preliminary - now shipping, samples on request
Capability Stack
Edge IntelligenceUnderstanding speech, compensating hearing - thinking about sound on-device
JSM2691JSZ2698more coming
Sensing FoundationJSM2718 / JSM3526 silicon-mic family - 56-67 dB(A) SNR foundation
Wideband response — speech, whispers and music, cleanly separated and faithfully reproduced.
MEMS Microphones & Sensor Chips
Featured silicon microphones, sensors and acoustic modules - SNR from 56 to 67 dB(A) in a 2.75 x 1.85 mm class package. Hover or tap a card for full specs.
JSM2691
Smart Microphone with On-Chip VAD & KWS
- SNR65 dB(A)
- AOP127 dB SPL
- Current0.195mA
- Package3.5×2.65×1.0mm
- InterfaceI2C
- StatusIn Validation
JSZ2698
Smart Hearing-Aid Audio Module
- SNR—
- AOP—
- Current0.9mA
- Package4.0×3.0×1.0 mm · bottom port
- InterfaceAnalog BTL
- StatusPreliminary - Now Shipping
JSM2718AB38CEP3-M0
Analog MEMS Microphone
- SNR63 dB(A)
- AOP126 dB SPL
- Current125μA
- Package2.75×1.85×0.9mm
- InterfaceAnalog
- StatusMass Production
JSM3526DB26UJ0
Digital PDM MEMS Microphone (ECM Replacement)
- SNR65 dB(A)
- AOP121 dB SPL
- Current≤900 μA
- Package3.5×2.65×0.98mm
- InterfaceDigital PDM
- StatusMass Production
All parameters are datasheet typical values (25 °C, reference circuit); series production follows official datasheets and sample measurements.
From whispers at your ear to the live stage — one microphone, clean and trustworthy sound.
Application Solutions
Pick your end product to see acoustic design pain points, recommended part numbers and reference layouts. Every scene ships with application notes and an evaluation kit.
Voice shutter · first-person captureVoice shutter · first-person capture
Offline voice in the temple: a 3.5 mm package holds the whole wake chain
Smart glasses squeeze interaction into the temples: the JSM2691 smart microphone lives in a 3.5 × 2.65 mm footprint, listening always-on at ~0.195 mA on-chip and waking the host only after a wake word - voice shutter, menu call and first-person capture complete fully offline, with no audio uploaded.
Hearing aid & PSAP engine - one module, closed loopHearing aid & PSAP engine - one module, closed loop
The whole aid chain closes inside the ear, never loading the Bluetooth path
JSZ2698 is a self-contained assistive-listening engine: pickup, 8-channel WDRC and differential receiver drive close the loop inside the module. Add only a zinc-air cell, a receiver and buttons, and ship OTC hearing aids, classic BTE / RIE / CIC forms, independent PSAP channels in TWS earbuds, plus in-ear masking and hearing-protection devices.
Dual-mic ANC & call chain · 8 mm cavity compatibleDual-mic ANC & call chain · 8 mm cavity compatible
Call and noise cancellation, both inside an 8 mm acoustic cavity
TWS front cavities are tight while wind noise and fit leakage persist. The JSM2718AB38CEP series (-38 dBV sensitivity, 63 dB(A) SNR) handles calls and music; a dual-mic beamforming + ENC reference covers cavity sealing and wind-noise layout end to end.
5 m far-field · beamforming & AEC5 m far-field · beamforming & AEC
Far-field voice: every wake word heard clearly at 5 meters
Smart speakers and conference bars need high-SNR arrays against reverb and self-noise. Four JSM3526 PDM mics share one clock with L/R channel assignment; with the beamforming reference, 65 dB(A) SNR keeps ample headroom for 360° far-field voice.
AEC-Q100 · −40 °C to +105 °C · steering-wheel-mounted micAEC-Q100 · −40 °C to +105 °C · steering-wheel-mounted mic
Automotive reliability, traceable from die to production line
Cabin multi-zone voice demands tolerance to temperature swing, oil film and vibration. The JSM2718 CEP platform extends to -Q automotive variants (AEC-Q100 qualification in progress) for driver/passenger/rear zones and wheel-arch RNC pickup.
Machine acoustic fingerprinting · IP67 variantMachine acoustic fingerprinting · IP67 variant
Hear equipment failure early through acoustic fingerprints
Early motor, valve and bearing wear shows up in sound first. JSM3526 PDM mics at edge-spectrum nodes deliver acoustic-fingerprint monitoring without stopping lines; HJT1280A dies, 100% wafer-tested, let module makers build wide-temperature, high-humidity pickup units in-house.
From whispers at your ear to the live stage — one microphone, clean and trustworthy sound.
Turnkey Acoustic & Sensing Systems
More than chips: acoustic simulation, array reference designs, driver and algorithm porting, mass-production calibration - packaged delivery that shortens your time to market.
Low-Power Voice Interaction Solution
JSM2691 smart microphone: pickup, VAD and keyword spotting complete offline in one die at an estimated ~0.195 mA standby. Pair it with other silicon mics for capture - the host just sleeps.
0.195 mAVAD standby
30offline keywords
Digital Hearing-Aid Audio Solution
JSZ2698 closes the aid in one chip: on-chip pickup, 8-ch WDRC, adaptive noise reduction and feedback cancellation, direct-driven receiver — about 0.9 mA from a single zinc-air cell.
8 bandsWDRC channels
~0.9 mATotal supply
Acoustic Front-End & Mic-Array Solution
2/4-mic ring and linear array reference designs with beamforming, AEC and algorithm porting built in.
5 mFar-field pickup
360°Beam coverage
Customization Flow · 4 Steps
Define
Align acoustic specs, cavity constraints and volume targets; we deliver a selection proposal.
Select
Match SNR / AOP / power combinations from the product matrix; a custom die is launched when needed.
Validate
EVB + cavity simulation + algorithm co-tuning, with listening acceptance on real end products.
Sustain
Line calibration tooling, SPC yield dashboards and lot traceability — supporting hundred-million-unit annual delivery.
05 — Newsroom
News & Milestones
JSZ2698 Smart Hearing Audio Module Enters Shipping
The Preliminary batch began shipping in October 2026: one device closes the loop from pickup and pre-amp to digital processing and differential receiver drive, for OTC hearing aids, BTE / RIE / CIC aids and PSAP earbuds.
Request SamplesJSM2691 Smart Microphone Enters Mass Production
Pickup, VAD and keyword spotting complete offline inside one die, with an estimated ~0.195 mA VAD standby current - volume production began in August 2026.
Request SamplesJSM3526 & 66 dB(A) High-SNR Mics Enter Mass Production
Direct 1-bit PDM output with drop-in ECM replacement, multiple performance modes and dual-mic arrays; alongside it, a 66 dB(A) high-SNR model entered production, extending the silicon-mic family to 56-66 dB(A).
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