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CX20437 数据表(PDF) 39 Page - List of Unclassifed Manufacturers |
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CX20437 数据表(HTML) 39 Page - List of Unclassifed Manufacturers |
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39 / 62 page  SmartHSF Mobile Modem Data Sheet 100553B Conexant 3-21 3.3 CX20437 VC HARDWARE PINS AND SIGNALS (S MODELS) Microphone and analog speaker interface signals, as well as telephone handset/headset interface signals are provided to support functions such as speakerphone mode, telephone emulation, microphone voice record, speaker voice playback, and call progress monitor. 3.3.1 VC Signal Interfaces Speakerphone Interface The following signals are supported: • Speaker Out (M_SPKR_OUT); analog output - Should be used in speakerphone designs where sound quality is important • Microphone (M_MIC_IN); analog input Telephone Handset/Headset Interface The following interface signals are supported: • Telephone Input (M_LINE_IN), input (TELIN) –Optional connection to a telephone handset interface circuit • Telephone output (M_LINE_OUTP); output (TELOUT) - Optional connection to a telephone handset interface circuit • Center Voltage (VC); output reference voltage HSD Interface The following interface signals are supported: • Reset (POR); input • Sleep (SLEEP); input • Master Clock (M_CLKIN); input • Serial Clock (M_SCK); output • Control (M_CNTRLSIN); input • Serial Frame Sync (M_STROBE); output • Serial Transmit Data (M_TXSIN); input • Serial Receive Data (M_RXOUT); output 3.3.2 VC Interface Signals, Pin Assignments, and Signal Definitions VC 32-pin TQFP hardware interface signals are shown by major interface in Figure 3-5, are shown by pin number in Figure 3-6, and are listed by pin number in Table 3-7. VC hardware interface signals are defined in Table 3-8. VC pin signal DC electrical characteristics are defined in Table 3-9. VC pin signal analog electrical characteristics are defined in Table 3-10. |
类似零件编号 - CX20437 |
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类似说明 - CX20437 |
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