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Ho-Link Unbalanced analog audio optical transceiver is a single chip stereo analog data fiber optical converter that uses bit-stream converter (ADC) technology.  The low power consumption and low voltage requirements make the device ideal for use in low-voltage and low-power portable data and audio devices.
Product Details

RCA Audio Series

Audio Specification  

1.Full-size output sine wave, 997 Hz;  MCLK = 12.288 MHz.  Fs basic probability mode = 48 kHz, SCLK = 3.072 MHz,  

2.Measurement bandwidth 10hz to 20khz;  Fs is high rate mode = 96 kHz,  


Multi-format output interface

1.Compatible with I2S bus and MSB format  

2.Serial output up to 24 bits.    


Advanced Audio Configuration

1.Stereo single - end input configuration  

2.High linearity, dynamic range and low distortion.  


General Functions and Features  

1.Supports 1 to 32 channels of unbalanced analog audio forward/bidirectional transmission  

2.Using FPGA, digital coding/decoding and clock recovery technology, high integration and high stability  

3.Single and multi-mode compatible, multi-mode transmission distance 1KM, single-mode transmission distance 20KM, customized transmission distance of up to 100KM  

4.LED status indicator to monitor the running status of the device  

5.Plug and play, no setup required  

6.Devices are used in pair. Note that devices are distinguished between transmitter and receiver

Technical Indexes

Fiber index


1310nm&1470nm~1610nmselection is based on device function

Tx power


Rx sensitivity


Fiber connector

FCSC,ST,LC, optional

Audio index

Dynamic bandwidth


Total harmonic distortion (THD)


Signal-to-noise ratio


Signal-to-noise ratioS/N


Sampling frequency


Audio A/D sampling

24 Bit

Frequency response


Gain mismatch between channels


Gain error


Gain drift

100 ppm/°C

Amplitude-frequency characteristic

≤±0.5 dB

Audio input/output impedance

600 Ω balance

Audio maximum input/output voltage


Operating index

Operating temperature

-20 to 70°C

Storage temperature

-40 to 80°C

Relative humidity

5 to 95%non-condensing

Working life


Power supply mode




AC 110~240V 50/60Hz

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