TDA8745

INTEGRATED CIRCUITS DATA SHEET TDA8745 Satellite sound receiver with I2C-bus control Preliminary specification Supersedes data of 1995 Mar 08 File under Integrated Circuits, IC02 1996 Mar 11 Philips Semiconductors Preliminary specification Satellite sound receiver with I2C-bus control FEATURES On-chip frequency synthesizer and mixer: – tuning range 4 to 9.77 MHz – reference oscillator 4 MHz (using a crystal or 4 MHz frequency source) IF input switches allowing selection of various IF bandwidths (wide or narrow) Demodulation of two audio signals by wide band Phase-Locked Loops (PLLs) Audio level control after PLL (modulation depth setting) Noise Reduction (NR) bypass for use with main audio signals Left, right and mono output [1⁄2(l + r)] on SCART level External audio inputs (for decoder connection) Selectable de-emphasis (DEEM) 50 µs, 75 µs, J17 and flat response I2C-bus control of all functions Two selectable addresses Carrier presence detector with automatic mute option. ORDERING INFORMATION TYPE NUMBER TDA8745 TDA8745H PACKAGE NAME SDIP42 QFP44 DESCRIPTION plastic shrink dual in-line package; 42 leads (600 mil) plastic quad flat package; 44 leads (lead length 1.3 mm); body 10 × 10 × 1.75 mm APPLICATIONS Satellite receivers TV sets Video recorders. GENERAL DESCRIPTION TDA8745 The TDA8745 is the successor of the TDA8740 and TDA8741. The device contains the functionality of the TDA8740 and TDA8741 together with a synthesizer, mixer and I2C-bus ...