Samples Available
This product's prototype/experimental version is available for evaluation, but it has not yet been officially put into production
TVOET3309G Transmissive Encoder Chip
The TVOET3309G series is a phase array cursor encoder chip designed for absolute encoders. It employs multiple differential photodiodes (PD) arranged in a specific phase array to generate high-precision 3-channel (N channel, S channel, M channel) sinusoidal output signals, supporting high-resolution interpolation that can achieve precision up to 24 bits. The specialized PD design enables higher amplitude output even under low lighting conditions, thereby reducing the LED emission current and enhancing product longevity. Additionally, there are 2 extra digital tracks for sector detection to distinguish repeated cursor scales, with a standard code disk providing two cursor scales per rotation and corresponding two-bit Gray code.
Product Features
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MSL：3
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Outstanding EMI Immunity
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A high transimpedance gain low noise amplifier
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Powered by 4.1 to 5.5 V with low power consumption
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Supports interpolation, achieving up to 24 bits in a single turn
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Ideal for high resolution absolute position encoders
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Operating temperature range from -40°C to +125°C
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Compatible with a φ33mm code disk, capable of achieving 2*256 CPR
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Features a 3-channel phase array design for superior signal matching
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Integrates embedded sector detection using 2 digital tracks based on 2-bit Gray code
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