KNXトランシーバ・ツイスト・ペア・ネットワーク（KNX TP1-256）NCN5121はレシーバ-トランスミッタ集積回路（IC）として使用できます。NCN5121にはPHY層とMAC層のいずれも組み込まれており、バス上でデータの送受信を処理します。未調整バス電圧から安定化電圧を生成し、自己の電源ニーズを満たすのに加え、外部デバイスへも電源を供給します。NCN5121はバスとの間での結合/分離の安全性を保証します。さまざまなモニタ（バス電圧、電流、温度...）がアナログ・ピン経由で使用できます。
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KNX certified TP transceiver with embedded PHY and MAC layers (TP1-256) . 9600 Bauds communication speed.
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NCN5121 can be used in any TP1-256 application
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Two high efficient DC-DC converters + one linear regulator :
- DC-DC1 : fixed 3.3 V
- DC-DC2 : adjustable between 1.2 and 21 V
- 20V linear regulator
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Most KNX applications can directly be supplied from the NCN5121 removing the need for external costly power supply.
Best in Class overall system efficiency.
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Bus Current Consumption up to 24 mA
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Suitable for vast majority of the KNX applications
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Supervision of temperature, KNX bus voltage and current
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Control and monitoring of power regulators
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Buffering of sent data frames (extended frames upported)
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Selectable UART/SPI interface and baud rate to host controller.
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Comprehensive clocking system
- Operates with industry standard low cost 16 MHz quartz
- Can generate 8/16 MHz clock for the external MCU
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Extended ambient temperature range -40 C to +105 C
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