IT9510: DVB-T, ISDB-T Modulator
IT9510 is a series of highly integrated transmitter for AirHD, DTVCam, and other personal, community, or professional digital TV head-end applications. The core of IT9510 is a DVB-T and ISDB-TCOFDM modulator. The high level of integration of IT9510 significantly decreases the power consumption, board size and cost of modulators in digital TV transmitter. With IT9510, a low cost, low power, compact, reliable, high bandwidth and wireless (or wired) full HD delivery solution is easily achieved.
IT9510 offers very low total bill of materials (BOM) and high-integration-level system solutions. It includes processing units for forward error correction coding and digital modulation, D/A IQ converter, low-pass filters, embedded mixer, and local oscillator. IT9510 series also supports flexible input interfaces, including embedded USB 2.0 interface, and serial/parallel TS interface input with built-in de-multiplexer.
IT9510 series is compliant with the non-hierarchical transmission specified in DVB-T (ETSI EN 300 744) and ISDB-T (ARIB STD-B31 V1.6). A (204, 188) Reed-Solomon encoder capable of correcting 8 error bytes is used to generate parity bytes for each input TS packet. The code rates of the punctured convolution encoder include 1/2, 2/3, 3/4, 5/6, and 7/8. Only native interleaving is used in IT9510. The output signal bandwidth is configurable from 1 MHz to 8 MHz for DVB-T and ISDB-T mode. The supported signal constellations include QPSK, 16-QAM, and 64-QAM. FFT modes of 2k, 4k, and 8k and guard intervals of 1/4, 1/8, 1/16, and 1/32 specified in EN 300 744 and STD-B31 V1.6 are supported. The transmission parameters are register-programmable, and are embedded in the Transmission Parameter Signaling (TPS) information as required by EN 300 744 and STD-B31 V1.6.
A complete set of application programming interface (API) is available, facilitating fast and easy integration into products on Windows Mobile, Windows CE, Windows 7, Windows XP, Vista, Linux, and many other operating systems. Furthermore, a complete set of USB drivers for Windows 7/XP/Vista, Windows Mobile/CE, and Linux are provided for IT9510.
