RDA5888E Просмотр технического описания (PDF) - Unspecified
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RDA5888E Datasheet PDF : 18 Pages
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RDA Microelectronics, Inc. RDA5888E-Fully Integrated SOC for ATV
Features
l Single-chip Tuner with NTSC/PAL/SECAM decoder
l Worldwide FM radio reception
l 100mA power consumption with digital output buffer
l Minimal external passive components
l Simple LNA matching components
l 50M- 870 MHz RF reception
l 100dB dynamic range
l <6 dB noise figure
l Fully integrated digital AGC loop
l Fully integrated channel selectivity
l Fully integrated PLL ( including loop filter)
l > 35 dBc first-adjacent rejection
l Internal blank-level clamping
l Dynamic ghosting/fading compensation
l Support 26/27 MHz crystal
l All-digital video timing generation
l ITU-601 compliant
l Analog and I2S digital audio output
l I2C control port
l On chip regulator voltage input 3V to 4.5V.
l 40-pin 6x6 QFN package
Applications
l Portable applications such as laptops, portable DVD players
l Handheld applications such as cellular phones and PDAs
General Description
The RDA5888E is a fully integrated direct conversion SOC for NTSC/PAL/SECAM analog TV standards. The
receiving frequency range is from 50MHz to 870MHz.The RDA5888E is a true single-chip design, requiring no
external SAW or ceramic filters, even high Q off-chip inductors to achieve full channel selectivity with an average
current consumption of 100mA.
The RDA5888E utilizes a direct-conversion, zero-IF architecture that allows for extremely good image and
adjacent channel signal rejection. The RDA5888E consists of a variable gain LNA, quadrature downconverter,
variable low-pass filters, reference oscillator, VCOs, synthesizer, high performance ADC, DSP for decoder. The
DSP provides final adjacent-channel rejection and audio/video carrier demodulation. The audio stream is
FM-demodulated and passed to the audio output port, whereas the CVBS video stream is separated into
component dideo and output onto the video data bus.
Based on RDA’s some innovative technique, the RDA5888E offers excellent phase noise and very low
implementation loss, required for NTSC/PAL/SECAM decoder. This tuner RF IC does not require a balun and its
fully integrated design saves valuable board space and simplifies RF layout.
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The information contained herein is the exclusive property of RDA and shall not be distributed, reproduced, or disclosed in whole
or in part without prior written permission of RDA.
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