LC89057W-VF4A-E SANYO [Sanyo Semicon Device], LC89057W-VF4A-E Datasheet - Page 10

• Manufacturer Part Number: LC89057W-VF4A-E
• Description: Digital Audio Interface Transceiver
• Manufacturer: SANYO [Sanyo Semicon Device]

9. Initial System Settings
9.1 System Reset (XMODE)
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of input. Consequently proper setting cannot be realized. For these pins, pull-up or pull-down resistor must be
connected.
When XMODE is set to "L" after power is turned on, the system is reset.
When setting chip address, demodulation function master or slave, and modulation function or general-purpose I/O
function, connect a 10kΩ pull-down or pull-up resistor to EMPHA/UO/CO,
The system operates correctly when XMODE is set to "H" after 3.0V or higher supply voltage is applied.
If EMPHA/UO/CO,
Set pin state
Chip address
Demodulation function master or slave
Modulation function or general-purpose I/O function
XMODE
DV DD
AUDIO/VO,
____________
3.0V
Figure 9.1 Setting Timing Chart of Function Setting Input Pins
Undefined
__________
CKST/PB, and
3.3V
Setting
Table 9.1: Pin Names and Settings
Normal system operation range
Setting input
LC89057W-VF4A-E
min. 200μs
state
INT are not pulled up or down, their pin state is unstable at the time
______
Setting completed
Output state
EMPHA/UO/CO,
Setting input
AUDIO/VO,
____________
state
_______
CKST/PB
Pins
____
INT
________
AUDIO/VO
Output state
__________
CKST/PB, and
INT pins.
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