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NMI5625

NMI5625
所属分类
移动电视芯片
目标应用
移动电视

NMI5625 is a single-chip solution that implements the RF tuner, demodulators, protocol stack audio/video decoders, all required memory, and peripherals on a single die which achieves small package size and ultra low power consumption along with class-leading performance. It receives an input single-ended RF signal from the antenna through the VHF-Ⅰ/FM, VHF-Ⅲ, or UHF-band RF input and can operate in the three modes discussed in Section 1.
The tuner integrates the LNAs, mixer, VCO, PLL/loop filter, LO generation, crystal oscillator baseband filters and amplifiers, and analog-digital converters. The tuner also includes an innovative closed loop RF gain control.
The demodulator receives a baceband input from the tuner and provides an Automatic Gain Control (AGC) signal to control the tuner gain. The demodulator implements the full acquisition, synchronization, and demodulation for analog TV (PAL/NTSC/SECAM), 1-seg ISDB-T, and FM transmission. In ISDB-T mode, the decoder parses the MPEG-2 transport stream and decodes the H.264 video and AAC audio stream.
The NMI5625 communicates with the host via the I2C or SPI interface for control, the BT.601/656 video interface, and the I2S interface for audio. An analog audio output is also provided as an alternative to the I2S audio interface.

Built in CMOS RF Tuner
Supports VHF-Ⅰ, FM, VHF-Ⅲ, and UHF bands
Demodulates ISDB-T 1-seg digital transmission and decodes the audio and video streams
Worldwide FM support
Worldwide PAL, NTSC, and SECAM support
   [1] Supports all NTSC standards : NTSC-M, NTSC-J, NTSC-4.43
   [2] Supports all PAL standards : B, B1, D, D1, G, H, I, K, K1, M, N, Nc
   [3] Supports SECAM B, D, G, K, K1
Pin for pin compatible with NMI600 & NMI601
It can drive an LCD directly
Available in 48-pin 6X6 QFN qualified Green Package

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