cf0b3846f1037324c8e403ef1e62cb41beeb6905
Tech-dat/Network-dat/fiber-optic-dat/fiber-optic-cable-dat/POF-dat/HFBR-dat/HFBR-dat.md
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| 21 | 21 | Output ─────► MCU RX |
| 22 | 22 | GND ─────────┴────────────────── |
| 23 | 23 | |
| 24 | +## 🧩 2. Integrated Fiber Optic Transceivers |
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| 25 | + |
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| 26 | +These are dedicated fiber optic ICs that handle the light/electrical signal conversion for **analog or digital baseband signals** — suitable for video. |
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| 27 | + |
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| 28 | +### 🔹 Avago HFBR-0500 Series (Now Broadcom) |
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| 29 | +- **HFBR-1521** – Transmitter |
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| 30 | +- **HFBR-2521** – Receiver |
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| 31 | + |
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| 32 | +**✔ Features:** |
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| 33 | +- Accept **analog or digital signals** (bandwidth limited to ~50 MHz) |
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| 34 | +- Compatible with **1 mm Plastic Optical Fiber (POF)** |
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| 35 | +- Accepts **TTL or analog-like baseband** signals |
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| 36 | +- Can work with **buffered composite/S-video signals** |
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| 37 | + |
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| 38 | +> **Note:** For pure analog video, you’ll need **pre-emphasis or buffering** before the transmitter to match signal levels. |
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| 39 | + |
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| 40 | + |
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| 24 | 41 | |
| 25 | 42 | ## ref |
| 26 | 43 |