AVL6261C

Overview

The Availink AVL6261C is a single-channel DVB-S2X/S2/S demodulator IC designed for satellite broadcast and data reception. It features an integrated dual 8-bit ADC, digital front-end, and FEC decoder. The device supports DVB-S2X and DVB-S2 standards with symbol rates ranging from 1 to 55 Msps for QPSK and up to 35 Msps for higher-order APSK modulations. It accommodates CCM and VCM modes with roll-off factors from 0.05 to 0.35. The component includes fast blind scan, carrier frequency acquisition, DiSEqC 2.x interface support, and flexible AGC/GPIO outputs for tuner control.

Feature Summary

• Supports DVB-S2X, DVB-S2, and legacy DVB-S transmission standards with normative and optional MODCODs.
• Integrates dual 8-bit ADCs and digital front-end processing for direct zero-IF satellite input.
• Provides parallel and serial MPEG transport stream output capabilities with GSE-High efficiency mode support.
• Includes comprehensive monitoring functions such as SQI, SSI, and BER/PER monitors.

Applications

• Satellite set-top boxes
• Satellite broadcast receivers
• Data reception systems

Procurement Notes

Verify the specific package type and pin configuration against the official datasheet before integration. Confirm that the design supports the required symbol rates and modulation schemes for the target application. Ensure compatibility with the I2C controller and DiSEqC interface requirements. Check for any specific ordering suffixes that may affect functionality or availability.

Selection Notes

Select this component for applications requiring a highly integrated solution for DVB-S2X and DVB-S2 demodulation. Consider its ultra-compact 48-pin QFN package for space-constrained designs. Evaluate the need for integrated ADCs versus external solutions based on system architecture. Verify support for required FEC frame types and modulation orders.

Part Context

The AVL6261C belongs to Availink's family of demodulator ICs, offering pin-to-pin compatibility with other DTMB and multi-standards demodulators in the series. This design facilitates easier upgrades or transitions between different broadcasting standards within the same product line while maintaining consistent board layout constraints.

Replacement Considerations

Check for pin-to-pin compatible alternatives within the Availink DTMB and multi-standards demodulator family. Verify functional equivalence regarding supported standards and interfaces before substitution.

FAQ

What modulation schemes are supported by the AVL6261C?

The device supports QPSK, 8PSK, 16APSK, 32APSK, and 64APSK for DVB-S2X/S2, as well as QPSK for legacy DVB-S.

Does the AVL6261C support variable coding and modulation (VCM)?

Yes, the component supports both Constant Coding and Modulation (CCM) and Variable Coding and Modulation (VCM).