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WM8803CDT/V 数据表(PDF) 1 Page - Wolfson Microelectronics plc |
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WM8803CDT/V 数据表(HTML) 1 Page - Wolfson Microelectronics plc |
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1 / 45 page  w WM8803 Digital Audio Interface Receiver WOLFSON MICROELECTRONICS plc w :: www.wolfsonmicro.com Product Preview, September 2003, Rev 1.1 Copyright 2003 Wolfson Microelectronics plc DESCRIPTION The WM8803 is a digital audio interface receiver conforming to IEC 60958/61937 and EIAJ CP-1201. It supports input audio data rates up to 192kHz and a maximum output data length of 24 bits. The WM8803 has a flexible digital output port that allows the user access to channel status pre-emphasis information, input signal sampling frequency, sub-code Q data with the associated CRC flags and other status data. The WM8803 can output an externally input clock signal that can be used as an ADC converter clock when the PLL is unlocked. It also maintains the continuity of the output clock when the clock is switched. The WM8803 includes a built-in oscillator and serial data input circuits and allows the system micro-controller to read the sub-code Q data and the channel status. It provides several low-power modes, thus supporting applications that require long battery life, such as portable audio devices and PDAs. The device is available in a 24-pin TSSOP package. FEATURES • PLL circuit for synchronization with transferred input bi- phase mark signal. • Input sampling frequency: 32kHz to 192kHz • Outputs clocks: fs, 64fs, and one of 128fs, 256fs, 384fs, and 512fs. • 4-Wire CCB MPU Serial Control or Hardware Default Interface • Master Clocking Mode • Programmable Audio Data Interface Modes − I 2S, Left, Right Justified − 16/20/24/32 bit Word Lengths • 3.3V Digital supply Operation • 5V tolerant digital input ports APPLICATIONS • DVD Receivers • DVD-R/W Players • Audio Video Receivers • Portable Music Players BLOCK DIAGRAM W WM8803 PLL MICROCONTROLLER INTERFACE DEMODULATION AND LOCK DETECTION DATA BUFFER CLOCK SELECTOR FS CALCULATOR AUDIO INTERFACE AMP C & U DI CL CE PD AUDIO DO E/INT UGPI RXIN LPF XIN XOUT SDIN ERROR CLKOUT BCLK LRCLK SDATO AVDD AGND DVDD DGND |
类似零件编号 - WM8803CDT/V |
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类似说明 - WM8803CDT/V |
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