STEVAL-LNBH06

Оценочная плата источника питания, на базе LNB, LNBH26S, прием спутниковых ТВ сигналов.

The STEVAL-LNBH06 from STMicroelectronics is a power supply evaluation board for LNB based on the LNBH26S. The LNBH26S is an integrated solution for supplying / interfacing satellite LNB modules in accordance with international standards. This simple solution offers a complete solution for dual tuner satellite receivers and provides good performance at low cost using a low external component count. The evaluation board includes an I?C bus interface and internal 22KHz tone generator which is factory trimmed and can be controlled by the DSQIN pin (TTL compatible) which allows immediate DiSEqC data encoding. It functions with a single input voltage supply source ranging from 8V to 16V and used to power LNBs inside dish antennas to receive satellite TV signals.

• Complete interface between LNB and I?C bus
• Built-in DC-DC converter for single 12V supply operation and high efficiency (typ. 93% at 0.5A)
• Selectable output current limit by external resistor
• Compliant with output voltage specifications for principal satellite receivers
• Accurate built-in 22KHz tone generator suits widely accepted standards
• 22KHz tone waveform integrity guaranteed even at no load condition
• LDO post regulator, high efficiency step-up PWM with integrated power N-MOS allowing low power loss
• LPM function (low power mode) to reduce dissipation
• Overload and overtemperature internal protection with I?C diagnostic bits
• LNB short-circuit dynamic protection, ±4KV ESD tolerant on output power pins