TDA9881

The TDA9884 is designed as one kind of alignment-free multistandard (PAL and NTSC) vision and sound IF signal Phase-Locked Loop (PLL) demodulator device that can be used in TV, VTR, PC, and STB applications.

Features of the TDA9884 are:(1)5 V supply voltage; (2)Gain controlled wideband Vision Intermediate Frequency (VIF) amplifier; AC-coupled; (3)Multistandard true synchronous demodulation for negative modulated standards with active carrier regeneration: very linear demodulation, good intermodulation figures, reduced harmonics and excellent pulse response; (4)Fully integrated VIF Voltage Controlled Oscillator (VCO), alignment-free, frequencies switchable via logic pin VIF0 and pin QSSO with resistor; (5)Digital acquisition help circuit, VIF frequencies of 38.0 MHz, 38.9 MHz, 45.75 MHz and 58.75 MHz; (6)4 MHz reference frequency input signal from Phase-Locked Loop (PLL) tuning system or operating as crystal oscillator; (7)VIF Automatic Gain Control (AGC) detector for gain control; operating as peak sync detector; (8)VIF AGC monitor output at pin VAGC; (9)Precise fully digital Automatic Frequency Control (AFC) detector with 4-bit digital-to-analog converter.etc.

The absolute maximum ratings of the TDA9884 can be summarized as:(1)supply voltage: 4.5 to 5.5 V;(2)supply current: 52 to 70 mA;(3)time constant (R x C) for network at pin VP: 1.2 ms;(4)VIF input voltage sensitivity (RMS value): 60 to 100 uV;(5)control range VIF gain: 60 to 66 dB;(6)video output voltage (peak-to-peak value): 1.7 to 2.3 V;(7)differential phase: 2 to 4 deg;(8)-1 dB video bandwidth: 5 to 6 MHz;(9)attenuation at first sound carrier: 30 to 36 dB. If you want to know more information such as the electrical characteristics about the TDA9884, please download the datasheet in www.seekic.com or www.chinaicmart.com.