Driver module PPG-2R-880

data processingtelemonitoringvital signs

Overview
The PPG-2R-880 / PPG-2R-940 Reflectance SpO2 Module is a dual-channel optical simulator designed for R&D, validation and production verification of wearable reflectance PPG products. It pairs with the AECG100 main console or the SECG 5.0 AIO Multi Vital Sign Simulator to provide analog R and IR outputs for SpO2 and heart rate testing. The module supports detailed waveform customization, respiration modulation, noise injection and automated test scripting to reproduce clinical and engineered signals for algorithm verification.

Key capabilities

• Outputs programmable PPG waveforms and standard waveforms (sine, triangle, square) with adjustable DC offset.
• Simulates analog green/red/infrared reflectance signals (supports green/red/IR voltage outputs).
• Custom R-curve simulation for SpO2 and perfusion index (PI) validation.
• Simultaneous ECG and PPG outputs when used with AECG100; adjustable Pulse Wave Transit Time (PWTT) parameters for timing tests.
• Noise generator with selectable frequencies and white-noise option to stress-test signal-processing algorithms.
• Raw data playback to reproduce recorded clinical traces or user-defined waveforms.
• SDK available for automated and scripted testing, enabling integration into production and validation workflows.

Highlights

• Respiration simulation with baseline, amplitude and frequency modulation to approximate real-world reflectance PPG signals.
• Rapid DUT R-curve establishment by calculating R/IR DC values and importing into SpO2 tables for fast verification of product quality and consistency.
• Includes example R-curves from major manufacturers for development reference and supports custom R-curve loading for rapid verification.
• SDK facilitates development of automated test programs and integration into manufacturing and validation processes.
• Optional customized fixtures and finger-socket services to align DUT LEDs and PDs for precise optical coupling (fixture options provided as product services).

Documentation & manuals (available)
Datasheet and user manual are provided, including pairing instructions for supported main consoles.

Technical specifications

• Heart rate (SpO2 test mode): 10—300 BPM; step 1 BPM; accuracy ±1 BPM.
• LED DC reference output: 100—3000 mV; step 1 mV.
• LED AC reference output: 0.75—30 mV; step 0.01 mV.
• PI (AC/DC) range: 0.025%—30% (depends on AC/DC levels).
• LED wavelengths: Red 660 nm; Infrared 880 nm or 940 nm; wavelength accuracy ±10 nm.
• Red irradiance (100%): 3.55 mW/m²; accuracy ±15%.
• Infrared irradiance (100%): 6.65 mW/m²; accuracy ±15%.
• LED scan rate: 50—40 kHz (Normal/Standalone); 10 kHz (Raw data); scan timing accuracy ±5 μs.
• PD sample rate: 250 kHz (single channel); timing accuracy ±5 μs.
• PD rise/fall response time: ~1 μs (varies with DUT LED intensity).
• SpO2 setting range: 1%—100%; step 1%; accuracy ±1% plus DUT-specified accuracy (measured against reference instruments).
• PPG Test Mode — Waveform: Sine / Triangle / Square / PPG (default: PPG).
• PPG Test Mode — BPM: 10—300 BPM (default 60 BPM); step 1 BPM.
• PPG Test Mode — Respiration-related frequency: 0.17—5 Hz; default 1.00 Hz; step 0.01 Hz.
• PPG Test Mode — Lumen: 50—925 Lux (measured 5 mm from diffusion film); resolution ~1/3000 full range; accuracy ±6%.
• PPG Test Mode — Supported wavelengths: 525 / 660 / 880 / 940 nm (accuracy ±10 nm).
• PPG Test Mode — SP/DN/DP amplitudes (AC): 0.75—30.00 mV; step 0.01 mV; example defaults provided in tables.
• PPG Test Mode — SP/DN/DP time positions (Red/IR): 0—1000 ms (at 60 BPM); resolution 1 ms; example defaults SP 150 ms, DN 360 ms, DP 460 ms.
• Noise generator (time) — Frequencies: off / 0.5 / 1 / 2 / 3 / 5 / 10 / 25 / 50 / 60 / 100 / 120 / 1k / 5k Hz / White Noise; amplitude 0.05—2.00 mV; step 0.05 mV.
• Respiration — Rate: 1—150 BrPM; default 20 BrPM; step 1 BrPM. Inhale/exhale ratio: 1:1, 1:2, 1:3, 1:4, 1:5 (default 1:1).
• Respiration modulation — Baseline/amplitude/frequency modulation available. Respiration baseline variation: R: 1—16%, IR: 1—16%; step 1%.
• Apnea — Duration: 1—60 s (default 10 s); cycle: 1—10 min (default 1 min).
• PWTT Test Mode — Time difference (PTTp, PTTf): 0—5999 ms (range decreases at higher HR); step 1 ms; accuracy ±1 ms.
• Supported modes with AECG100: Normal, Standalone, Raw data. Raw data mode supported with SECG 5.0 AIO.