參數(shù)資料
型號(hào): LC89057W-VF4-E
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝: 7 X 7 MM, SQFP-48
文件頁(yè)數(shù): 61/61頁(yè)
文件大?。?/td> 355K
代理商: LC89057W-VF4-E
LC89057W-VF4-E
No. 7202-9/61
7 Initial System Settings
7.1 System Reset (XMODE)
The system operates normally when XMODE is set to "H" after applying a supply voltage of 3.0V or higher.
Following power ON, the system is reset by setting XMODE to "L" again.
Connect a 10k
pull-down or pull-up resistor to EMPHA/UO, AUDIO/VO, CKST, and INT for the chip address,
demodulation function master or slave, and modulation function or general-purpose I/O function settings
If EMPHA/UO, AUDIO/VO, CKST, and INT are not pulled up or down, their state at setting input is undefined and
they cannot be set properly. Always connect a pull-up or pull-down resistor to these pins.
Table 7.1. Pin Names and Settings
Setting
Pins
Chip address
EMPHA/UO, AUDIO/VO
Demodulation function master or slave
CKST
Modulation function or general-purpose I/O function
INT
DVDD
XMODE
Set pin state
3.3 V
3.0 V
Setting input
state
Output state
Normal system operation range
Setting completed
Undefined
min. 200 us
Setting input
state
Figure 7.1. Setting Timing Chart of Function Setting Input Pins
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