DS2155LNB+

Series:	--
Packaging:	Tray
Part Status:	Last Time Buy
Function:	Single-Chip Transceiver
Interface:	E1, HDLC, J1, T1
Number of Circuits:	1
Voltage - Supply:	3.14 V ~ 3.47 V
Current - Supply:	75mA
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	100-LQFP
Supplier Device Package:	100-LQFP (14x14)
Includes:	BERT Generator and Detector, CMI Coder and Decoder, HDLC Controller
Base Part Number:	DS2155

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DS2155LNB+ is a cost-effective, single-chip LNB power management device that provides complete device initiation, authentication and power management functions, suitable for dual or single-output satellite receivers in Europe and worldwide. The DS2155LNB+ is optimized for use in emerging digital terrestrial applications and provides users with added flexibility and more options for selecting between LNBs.Its major application field is satellite receivers, digital television receivers, antenna motor control and digital terrestrial applications. The satellite receiver’s signal is converted by an LNB into a different signal, either single or dual output. This is then converted by the digital receiver in order to extract the signal sent by the transmitting satellite. The power management and control of the LNB is managed via the LNB controller and this is usually implemented in a printed circuit board (PCB).The working principle of the DS2155LNB+ device is based on the same concepts as the standard single output and dual output LNBs. The power control and management of the LNB is handled via the doorbell/data line, using the same practices found in the single output and dual output LNBs. The device initiates the LNB and authenticates it, in order to ensure that the device is correctly connected. Once connected and authenticated, power is then supplied to the LNB.The power to the LNB is managed using either current sensing or voltage sensing control methods. Once the receiving system is no longer in use, the LNB is shut down to save energy. To allow for easy integration of the LNB power management into the existing system design, the doorbell/data line has various functions. These include data inversion, power control, and authentication. Additionally, the doorbell/data line is split into two pins, one for initiating the LNB and the other for data communication.The overall performance of DS2155LNB+ is improved compared to the standard dual output LNBs, due to its enhanced controller and authentication. This allows for more control over the LNB, as well as improved power management, enabling it to be used in more demanding digital applications. Additionally, the DS2155LNB+ is also capable of providing cost savings in regards to power consumption, due to its improved power management capabilities.In summary, the DS2155LNB+ is a cost-effective single-chip LNB power management device that provides complete device initiation, authentication and power management functions suitable for both dual and single output satellite receivers. The device is optimized for use in emerging digital terrestrial applications and offers users more flexibility and options regarding LNB selection. It uses current sensing or voltage sensing to control and manage the power supplied to the LNB and features data inversion, power control, and authentication to easily integrate into system designs. Overall, the DS2155LNB+ offers improved performance and power savings compared to the standard dual output LNBs.

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