AK4145

[AK4145] = Preliminary = AK4145 Digital BTSC Stereo Encoder GENERAL DESCRIPTION The AK4145 is a BTSC Encoder with D/A Converter, which is optimized for Digital AV application. The AK4145 achieves high audio performance using the digital BTSC encoding architecture requires no alignment of external parts. The AK4145 supports major audio data formats (MSB justified, I2S, TDM) to interface with usual DSP. Therefore, the AK4145 is suitable for the systems such as Digital STB/TV, digital recorder. FEATURES † Alignment Free Digital BTSC Stereo Encoding † Base band Composite Audio Output (Mono/Stereo) † Digital Volume for Composite Audio Output † Digital De-emphasis filter (32k/44.1k/48kHz) † Stereo Digital Volume Control for Audio Input Data † Soft Mute † Sampling Rate (fs): 32k/44.1k/48kHz † Master Clock: 256fs/384fs/512fs/768fs † I/F format: 24-Bit MSB justified, 24/20/16-Bit LSB justified or I2S † Control: Standalone/I2C-bus Selectable † Video Input for Pilot Synchronization † S/(N+D): 0.01% † S/N: 82dB † Channel Separation: 47dB † Power Supply: 1.7V ~ 1.9V, 2.7 ~ 3.6V † Ta: -20 ~ 85°C P/S PDN MCLK FILT TVDD DVDD www.DataSheet4U.com FS1/SDA DIF/SCL µP Interface PLL VSS VCOM AVDD LRCK BICK SDTI Audio Data Interface De-emphasis, DVOL, Stereo Matrix Digital BTSC Encoder DATT DAC CA Sync separator CV/27M Rev. 0.3-PB -1- 2007/12 [AK4145] ■ Ordering Guide AK4145ET AKD4145 -20 ∼ +85°C Evaluation Board 16pinTSSOP ■ Pin Layout FILT PSN CV27M PDN MCLK LRCK BICK SDTI ...