參數(shù)資料
型號： LC89058W-E
廠商： SANYO SEMICONDUCTOR CO LTD
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP48
封裝： 7 X 7 MM, SQFP-48
文件頁數(shù)： 20/46頁
文件大小： 284K
代理商： LC89058W-E
LC89058W-E
No.A1056-27/64
10.2 S/PDIF I/O
10.2.1 Reception range of S/PDIF input
The guaranteed reception range of input data is shown below.
Table 10.4: S/PDIF Reception Range (FSLIM [1:0]=00)
PLL Output Clock Setting
Input Data Reception Range
512fs
30kHz to 192kHz
Note:
(1) Reception range of RX1 is 32kHz to 96kHz.
(2) PLL output clock is frequency-divided with PLLACC, PLLDIV and PRSEL [1:0] and is output from RMCK.
The fs reception range for input data can be limited within the set range of PLL output clocks stated above. This
setting is carried out with FSLIM [1:0]. When this function is adopted, input data exceeding the set range is
considered as an error, the clock source is automatically switched to the XIN source, and RDATA output data is
subject to the RDTSEL setting.
10.2.2 S/PDIF I/O pins (RX0 to RX6, RXOUT1, RXOUT2)
S/PDIF input pins are 7 inputs at maximum.
(1) RX1 is a coaxial-compatible input pin. When using RX1, connect RX0 and RX2 to GND.
(2) RX0, RX2, RX3, RX4, RX5, and RX6 are TTL input level pins with 5V-tolerance voltage.
(3) Make sure that the selected pins are not input-open. For points to notice on RX1, see the following subsection.
(4) The unselected pins are pulled down with their internal resistors.
The demodulation input and S/PDIF through-output pins RXOUT1 and RXOUT2 data can be selected independently.
(1) The demodulation data is selected with RISEL[2:0].
(2) The RXOUT1 output data is selected with ROSEL[2:0].
(3) The RXOUT2 output data is selected with RXSEL[2:0].
It is possible to deselect all of RX0 to RX6 with RISEL[2:0] (RISEL[2:0]=111).
RXOUT1 and RXOUT2 can be muted with RXOSEL[2:0] and RXSEL[2:0], respectively. Muting is recommended to
reduce jitter when RXOUT1 and RXOUT2 are not used.
The data input state can be monitored with the RXMON setting. The status of each data input pin is stored in CCB
address 0xEA and output registers DO0 to DO7. Moreover, the latest information can be read with the
microcontroller by setting the interrupt processing command INDET. For details, see Chapter 12, Microcontroller
Interface.
The frequencies of input data that can be monitored with this setting is from 32kHz to 192kHz. The data detection
function applies to IEC60958 compatible S/PDIF data. The frequency of the clock supplied to XIN when RXMON is
set is limited to 24.576MHz. LC89058W-E does not run at any clock frequency other than 24.576MHz. Moreover,
since this function uses the XIN clock, the oscillation amplifier must be set in the continuous operation mode when
RXMON is set.
When the data input monitoring is specified, the input pins, except RX1pin and those which are selected for
demodulation, are pulled down. This is to preclude input-open when detecting no connection input pins. For the
peripheral circuit of the RX1 pin, see the following page.
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