STM8SPLNB1 datasheet(6/44 Pages) STMICROELECTRONICS

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Device description

STM8SPLNB1

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DocID018831 Rev 5

Device description

1.1

Implementation

STM8SPLNB1 device is receiving DiSEqC signal on the coaxial cable, decoding and

processing the DiSEqC commands. As a result, legacy matrix or I2C lines are controlled.

The STM8SPLNB1 device can also send DiSEqC answer back to master through coaxial

cable.

STM8SPLNB1 is designed for usage with LNB devices with I2C bus control and/or direct

pins control (see Figure 2: STM8SPLNB1 typical configuration). SaTCR1 device is typically

used in LNB application (see www.st.com for more SaTCR1 information).

Behavior of STM8SPLNB1 devices can be modified through a set of configuration

parameters which are stored in device data EEPROM memory. Configuration is done also

through specific DiSEqC commands. After final configuring the device can be locked to

given configuration (vendor configuration).

Figure 2: STM8SPLNB1 typical configuration shows the recommended configuration for the

hardware connections for LNB control with STM8SPLNB1 devices.

Figure 2. STM8SPLNB1 typical configuration

1. Power supply must have level 5V +/- 10% for correct operation.

STM8SPLNB1 データシート(PDF) 6 Page - STMicroelectronics