TDA8262HN Fully Integrated Satellite Tuner

The direct conversion QPSK Demodulator is the front-end receiver dedicated to digital TV broadcasting, satisfying both DVB-S and DBS TV standards. The wide range Oscillator (from 950 MHz to 2175 MHz) covers the American, European and Asian satellite bands, as well as the SMA-TV US standard.The Zero-IF (ZIF) concept discards traditional IF filtering and intermediate conversion techniques.Gain-controlled Amplifiers in the RF guarantee optimum signal level. The variable gain is controlled by the signal returned from the Satellite Demodulator and Decoder (SDD) and applied to pin AGC.The integrated LNA allows the IC to be directly connected to the LNB output. The LNA CAN be by-passed by an I2C-bus selectable attenuation, providing a 20 dB extra attenuation in order to handle higher input signal levels of up to 0 dBm per channel.An integrated loop-through realizes a copy of the input RF signal for another downconverter. This feature offers a BOM reduction and simplifies the application for dual channel demodulation like watch and record.Connected at the RF input, an RMS level detector provides through I2C-bus read mode the full band input signal level.The LO quadrature outputs are derived from a high performance integrated LC Oscillator Its frequency is: (f LO)/N = (f xtal)/R . Thanks to the low phase noise performance of the integrated LC Oscillator which controls the LO frequency, the synthesizer offers a good performance for phase noise in the satellite band. The step size of the LO output frequency is equal to the comparison frequency.Control data is entered via the I2C-bus. The bus CAN be either 5.0 V or 3.3 V, allowing compatibility with most of existing Microcontrollers An 8-byte frame is required to address the device and to program the main divider ratio, the reference divider ratio, the charge-pump current and the operating mode.A flag is set when the loop is in-lock, readable during read operations, as well as the Power-on reset flag and RF input level.The device has four selectable I2C-bus addresses. Applying a specific voltage to pin AS selects an address. This feature gives the possibility to use up to four TDA8262HN ICs in the same system.
By NXP Semiconductors
TDA8262HN 's PackagesTDA8262HN 's pdf datasheet
TDA8262HN-C1 HVQFN




TDA8262HN Pinout, Pinouts
TDA8262HN pinout,Pin out
This is one package pinout of TDA8262HN,If you need more pinouts please download TDA8262HN's pdf datasheet.

TDA8262HN Application circuits
TDA8262HN circuits
This is one application circuit of TDA8262HN,If you need more circuits,please download TDA8262HN's pdf datasheet.


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