NXP Semiconductors 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 control. The pin numbers mentioned in this publication refer to the SDIP42 package; unless otherwise indicated.| Part No. | TDA8745 |
|---|---|
| Datasheet | TDA8745 Download |
| Manufacturer |  NXP Semiconductors |
| Description | Satellite sound receiver with I2C-bus control |
| Buy | Stock & Price |
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 mmAPPLICATIONS
● Satellite receivers● TV sets
● Video recorders.
