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WM8728 数据表(PDF) 2 Page - Wolfson Microelectronics plc |
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WM8728 数据表(HTML) 2 Page - Wolfson Microelectronics plc |
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2 / 28 page  WM8728 Product Preview WOLFSON MICROELECTRONICS LTD PP Rev 1.2 April 2001 2 PIN CONFIGURATION ORDERING INFORMATION DEVICE TEMP. RANGE PACKAGE XWM8728EDS -25 to +85 oC 20-pin SSOP MUTEB CSBIWL VREFP MODE LATI2S DGND BCKIN LRCIN VOUTL VMID VREFN AGND WM8728 16 15 14 20 19 18 17 5 6 7 1 2 3 4 DVDD ZERO MCLK DIN 13 12 11 8 9 10 AVDD VOUTR SDIDEM SCKDSD PIN DESCRIPTION PIN NAME TYPE DESCRIPTION 1 LRCIN Digital Input DAC Sample Rate Clock Input: PCM Input Mode Right Channel DSD Bitstream Input: DSD Input Mode 2 DIN Digital Input Serial Audio Data Input: PCM Input Mode Left Channel DSD Bitstream Input: DSD Input Mode 3 BCKIN Digital Input Audio Data Bit Clock Input 4 MCLK Digital Input Master Clock Input 5 ZERO Digital Output (Open drain) Infinite ZERO Detect Flag 6 DGND Supply Digital Ground Supply 7 DVDD Supply Digital Positive Supply 8 VOUTR Analogue Output Right Channel DAC Output 9 AGND Supply Analogue Ground Supply 10 AVDD Supply Analogue Positive Supply 11 VOUTL Analogue Output Left Channel DAC Output 12 VMID Analogue Output Mid Rail Decoupling Point 13 VREFN Supply DAC Negative Reference – normally AGND, must not be below AGND 14 VREFP Supply DAC Positive Reference – normally AVDD, must not be above AVDD 15 CSBIWL Digital Input (pull-up) Software Mode: 3-Wire Serial Control Chip Select Hardware Mode: Input Word Length 16 MODE Digital Input (pull-down) Control Mode Selection (L = Hardware, H = Software) 17 MUTEB Digital Bi-directional Mute Control (L = Mute on, H = Mute off, Z = Automute Enabled) 18 SDIDEM Digital Bi-directional Software Mode: 3 or 2-Wire Serial Control Data Input: Hardware Mode: De-Emphasis Select 19 SCKDSD Digital Input (pull-down) Software Mode: 3 or 2-Wire Serial Control Clock Input Hardware Mode: DSD Bitstream Operation Select 20 LATI2S Digital Input (pull-up) Software Mode 3-Wire Serial Control Load Input Hardware Mode: Input Data Format Selection Note: Digital input pins have Schmitt trigger input buffers. |
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