MITSUMI 2nd RF Units for Digital Satellite Broadcasting Receiver TSU27 Series DBS 2nd RF Units, CATV Converters OUTLINE The TSU27 series consists of RF units for receiving digital satellite broadcasts, and has built-in QPSK demodulation and FEC circuitry. FEATURES 1. Built-in QPSK demodulation and error correction circuit. 2. Supports DVB. 3. Error rate performance closely approaching logic value. 4. Low height (40mm) 5. Symbol Rate : 3~45MS/S (option) 6. Horizontal type (option) thinness 12.5mm for PC extension slot. SPECIFICATIONS Models Item Input Frequency Input Impedance Input Level IF Frequency IF BW Sybol Rate Range Modulation Type Output Data FEC Rates Controller Bus Interface TSU27-E03DT 950~2150MHz 75Ω -25~-65dBm 479.5MHz 36MHz 15~25M sym/s QPSK 8 bit parallel 1/2, 2/3, 3/4, 5/6, 7/8 I2C Remarks F-female 1~45M sym/s (for SCPC) MITSUMI 2nd RF Units for Digital Satellite Broadcasting Receiver BLOCK DIAGRAM 950~ 2150MHz AGC1 BPF AMP3 AGC2 AGC2 MIX SAW FILTER IQDEMOD A /D RF INPUT AMP1 QPSK -DEMOD FEC AMP2 RF OUTPUT PLL SAW-R OSC AGC <LNB Power supply> +B1 (to LNB, RF-IN) +B2 (to LNB, RF-OUT) +B3 (5V, AMP1) <Tuning Interface> +B4 (30V, Tuning) +B5 (5V, OSC) +B6 (5V, RF BLOCK) I2C BUS (Tur Block) <Control Interface : SERIAL> <DATA output Interface : PARALLEL> SCLK SDATA INT CLB (RESET) PORT [3:1] 22K (LNB CONTROL) FEL (Front-end Lock) +B7 (3.3V) +B8 (5V) D [0..7] BCLK OUT DVAL ID OUT ERROR OUT PSYNC DIMENSIONS Unit : mm General Tolerance : ±0.5mm Terminals 1. RF Input 2. RF Output 3. +B1 (LNB 15V) 4. +B2 (LNB OUT) 5. +B3 (5V) 6. +B4 (VT) 7. +B5 (5V) 8. +B6 (5V) 9. SCL1 10. SDA1 11. ——— 12. ——— 13. SCL2 14. SDA2 15. +B7 (3.3V) 16. GND 17. CLB 18. D7 19. D6 20. D5 21. D4 22. D3 23. D2 24. D1 25. D0 26. BCLK 27. DVALID 28. ERROR 29. PSYNC 30. INT 31. FEL 32. 22K 33. PORT3 34. +B8 (5V) 35. PORT2 36. PORT1