STV0903BAB

STV0903 Multi-standard advanced demodulator for satellite digital TV and data services set-top boxes Data Brief Features ■ Demodulation – DIRECTVTM and DVBS QPSK – DVBS2 QPSK and 8PSK – Digital Nyquist root filter with 0.20, 0.25, 0.35 excess bandwidth factors Decoding – Up to 95 mega channel bits per second (Mcbps) at input to DVBS2 FEC – Up to 130 Mcbps DVBS or DIRECTVTM at input to legacy FEC Interfaces – Dedicated 27 MHz clock generation for back-end decoder – I2C serial bus interface – JTAG interface - boundary scan – – – – ■ DiSEqCTM 2.x interface GPIOs and interrupt lines Monitoring through I2C serial interface FSK modem ■ Technology – 90 nm CMOS process – Power saving features Package – LQFP-128-EP 14x14, 0.4 mm pitch, RoHS. ■ Description STV0903 is a high performance satellite demodulator capable of handling DVB-S, DIRECTVTM legacy and DVBS2 (QPSK and 8PSK) constant coding and modulation signals for satellite broadcast. ■ AGCRF [IN, IP] [QN, QP] XTALI XTALO SCL, SDA SDAT, SCLT DISEQCIN DISEQCOUT FSKRX_IN FSKRX_OUT GPIO[13:1] TAP JTAG boundary scan Transport stream manager FIFO Line 1 Dual 8-bit ADC Clock generation Slave I2C manager Multi roll-off nyquist and interpolation filters DVBS2 pilots processor and framing Echo concealment equalizer Demapper IO and RF AGC ASIC controller and power management Multi-standard demodulator Carrier recovery loop Timing recovery loop CNR estimator DiSEqCTM 2.0 manager FSK manager GPIO switch matrix Lock indicator and monitoring DVBS2 FEC LDPC decoder BCH decoder DVBS2 de-framing CRC checker Legacy FEC Viterbi decoder Inner de-interleaver Reed-solomon decoder Energy descrambler D[7:0] CLKOUT STROUT DPN ERROR August 2008 Rev 1 1/5 www.st.com 5 For further information contact your local STMicroelectronics sales office. Application STV0903 1 Application Figure 1. Application diagram for DVB-S2 front-end system STV6110A SatTuner SDA, SCL AGC IN,IP RF_IN QN,QP STV0903 I2C SDAT, SCLT AGCRF IM,IP QM,QP I2C STx7100 or STx7109 MPEG-4 / H.264 Decoder IC XTAL_OUT 16 MHz XTAL_IN AUX_CLK Choke 27 MHz DISEQC-RX DISEQC_IN DISEQC_OUT 15 Ω LNBH23 2/5 STV0903 Ordering information 2 Ordering information Table 1. Ordering information Order code STV0903BAB Packaging LQFP128-14 × 14 mm 3/5 Revision history STV0903 3 Revision history Table 2. Date 21-Aug-2008 Document revision history Revision 1 Initial release. Changes 4/5 STV0903 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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