0.0 0.5 1.0 1.5 2.0 2.5 3.0 ISDB-T Adaptive Digital Predistortion ISDB-T Echo Cancellation Performance Reference Conditions: ISDB-T On-Channel Repeater/Gap Filler - Based on Avateq’s Universal Adaptive Echo Cancellation Engine; - Supports the following ISDB-T signal bandwidths: 5.575 / 5.573 / 5.572 MHz (mode 1, 2, 3) Figure I (5/6, 30) 33 ≥ 30 ≥ 42 30 7.552 2.56 ... 18.944 16.384 Figure II (5/6, 0) 40.5 30 ≥ 42 37 7.552 2.56 ... 18.944 16.384 Figure III (1/6, -60) 42 30 ≥ 42 41 7.552 2.56 ... 18.944 16.384 Operation Conditions Input signal MER, dB Gain margin, dB Echo suppression, dB Output signal MER, dB Processing time, usec Echo cancelling window position, usec Echo cancelling window width, usec Performance Reference Chart: ISDB-T RF Layer Monitoring Receiver - Based on Avateq’s Monitoring Software Receiver-Analyzer; - ISDB-T transmitter/repeater performance monitor. 5.575 / 5.573 / 5.572 MHz (mode 1, 2, 3) 1 405 (mode 1), 2 809 (mode 2), 5 617 (mode 3) 1/32, 1/16, 1/8, 1/4 DQPSK, QPSK, 16-QAM, 64-QAM - Signal MER/SNR, dB; - Signal RMS, dB; - Signal PAR, dB; - Peak compression, dB; - Signal CCDF. - AM-AM, AM-PM curve - Output complex LUT array is available for DPD - Group Delay, Amplitude and Phase response - Output complex FIR coefficients available for DPD - Group Delay, Amplitude and Phase responses - Spectrum shoulder levels - Signal MER/SNR - Signal max Group Delay - Spectrum tilt/ripple ISDB-T Monitoring Receiver Characteristics Channel bandwidth Carrier number Guard interval Constellation Signal RF layer parameters RF signal distortions - non-linear - linear Output band-path filter Default set of alarm events ORDERING INFORMATION Description ActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (OEM module) ActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (PCIe card) ActiveCore® Transmitter Efficiency Enhancing Platform for ISDB-T (1U unit) ActiveCore® Monitoring Receiver for ISDB-T (OEM module) ActiveCore® Monitoring Receiver for ISDB-T (PCIe card) ActiveCore® Monitoring Receiver for ISDB-T (1U unit) ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (OEM module) ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (PCIe card) ActiveCore® On-channel Repeater/Gap-Filler for ISDB-T (1U unit) ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (OEM module) ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (PCIe card) ActiveCore® Adaptive Linear and Non-linear DPD for ISDB-T (1U unit) Product ID AVQ1010-OEM-ISDBT AVQ1010-PCI-ISDBT AVQ1010-SAU-ISDBT AVQ1020-OEM-ISDBT AVQ1020-PCI-ISDBT AVQ1020-SAU-ISDBT AVQ1030-OEM-ISDBT AVQ1030-PCI-ISDBT AVQ1030-SAU-ISDBT AVQ1040-OEM-ISDBT AVQ1040-PCI-ISDBT AVQ1040-SAU-ISDBT ISDB-T Adaptive Digital Predistorter - Based on Avateq’s Universal Adaptive Digital Predistortion Engine. ≤ 50 ≤ 20 ≤ 0 Best MER / Best “Shoulder” ≤ 18 ± 180 ≤ 2000 ≤ 0.1 ≤ 10 dB 240 ISDB-T Adaptive Digital Predistorter Characteristics Analyzed and pre-corrected signal bandwidth, MHz Signal PAR max, dB Signal PAR reduction level compliant with spectrum mask, dB Adaptation criteria Non-linear DPD: - gain compensation range, dB - phase correction range, degree - compensation of Amplitude and Phase distortion variations across signal bandwidth. Liner DPD: - group delay correction, nano sec - inband ripple, dB - tilt or BPF band correction - filter tap spacing, kHz Linear Digital Predistortion Signal Spectrum 50 60 70 80 90 - before DPD - after DPD Non-Linear Digital Predistortion Signal Spectrum 0 10 20 30 40 50 60 70 80 - before DPD - after DPD Non-Linear Digital Predistortion Constellation - before DPD - after DPD - before DPD - after DPD Linear Digital Predistortion Constellation Linear Digital Predistortion Group Delay - before DPD - after DPD -0.4 -0.3 -0.2 -0.1 0.0 0.1 Non-Linear Digital Predistortion AM-AM - before DPD - after DPD Figure I. 5 adjacent channels with 6MHz spacing Useful channel -30 dB from adjacent -10 0 10 20 30 40 50 60 70 80 Figure III. No adjacent channels with 6MHz spacing Useful channel 0 dB from adjacent -10 0 10 20 30 40 50 60 70 80 90 Non-Linear Digital Predistortion AM-PM - before DPD - after DPD -0.8 -0.6 -0.4 -0.2 0.0 0.2 0.4 0.6 0.8 3.0 MER Improvement - before DPD - after DPD 0 10 20 30 40 50 Figure II. 5 adjacent channels with 6MHz spacing Useful channel 0 dB from adjacent -10 0 10 20 30 40 50 60 70 80 Echo 30 dB above useful signal -80 -70 -60 -50 -40 -30 -20 -10 0 30 dB Echo removed -80 -70 -60 -50 -40 -30 -20 -10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 ISDB-T Standard Specific Datasheet Gap-Filler / Adaptive Predistorter/ Monitoring Receiver ® ActiveCore® is a registered trademark of Avateq Corp. 2012 © Avateq Corp. All rights reserved. DS-ISDBT-20120412 AVATEQ CORP. 3555 - 14th Ave., Unit 18 Markham, ON L3R 0H5 Canada Phone: Fax: Email: Web: 1.416.342.0761 1.416.342.0608 [email protected] www.avateq.com