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LC89057W-VF4A-E 数据表(PDF) 11 Page - Sanyo Semicon Device |
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LC89057W-VF4A-E 数据表(HTML) 11 Page - Sanyo Semicon Device |
11 / 59 page LC89057W-VF4A-E No.7202-11/59 9.2 Chip Address Settings (EMPHA/UO/CO, ___________ AUDIO/VO) • The LC89057W-VF4A-E comes with a function to set a unique chip address to allow the use of several LC89057W- VF4A-E on the same microcontroller interface bus. • In chip address setting, connect a 10k Ω pull-down or pull-up resistor to EMPHA/UO/CO and ____________ AUDIO/VO. By this setting, 4 kinds of chip addresses can be set at a maximum. • Chip addresses in the microcontroller interface are set with CAL and CAU provided as the first two bits on the LSB side. CAL corresponds to the lower chip address and CAU to the higher chip address. • Command writing is enabled by making the chip address settings with EMPHA/UO/CO and ____________ AUDIO/VO identical to the chip addresses sent from the microcontroller. • The chip address setting is required even when only one LC89057W-VF4A-E is used in the system. If the chip address is not set, the chip address is undefined and the microcontroller cannot control the system. When the microcontroller is not used, a chip address-setting pin is input open while XMODE is "L". Be sure to connect either a pull-down resistor or a pull-up resistor to EMPHA/UO/CO and ____________ AUDIO/VO. Table 9.2 Chip Address Settings (Register Connection) _____ AUDIO/VO EMPHA/UO/CO CAU CAL Pull-down Pull-down 0 0 Pull-down Pull-up 0 1 Pull-up Pull-down 1 0 Pull-up Pull-up 1 1 Figure 9.2 Setting Example of Function Setting Input Pin LC89057W-VF4A-E EMPHA/UO/CO AUDIO/VO CKST/PB INT Connect to different circuits pull-down 10k Ω pull-up 10k Ω Chip address setting Demodulation function master or slave setting Modulation function or General-purpose I/O port switch CAlL=CAU=0 Master General-purpose I/O function Setting Contents of Above Figure |
类似零件编号 - LC89057W-VF4A-E |
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类似说明 - LC89057W-VF4A-E |
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