参数资料
型号: LC89057W-VF4-E
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP48
封装: 7 X 7 MM, SQFP-48
文件页数: 16/61页
文件大小: 355K
代理商: LC89057W-VF4-E
LC89057W-VF4-E
No. 7202-23/61
8.3.3 Output data switching (SDIN, RDATA)
RDATA outputs demodulation data when the PLL is locked, and SDIN input data when the PLL is unlocked. This
switching is automatically performed according to the locked/unlocked status of the PLL. For details, see the timing
charts below.
When SDIN input data is selected, switch to a clock source synchronized to the SDIN data.
With the RDTSTA setting, the SDIN input data is output to RDATA regardless of the locked/unlocked status of the
PLL.
With the RDTMUT setting, the RDATA output data can be forcibly muted.
Even when the clock source is set to XIN with OCKSEL and RCKSEL, the PLL continues operating as long as its
operation is not stopped with PLLOPR. At this time, the PLL status is continuously output from RERR as long as
error output is not forcibly set with RESTA. Moreover, the processed information can be read with the
microcontroller interface regardless of the PLL status.
RERR
CKST
(a) Lock-in stage
RDATA
UNLOCK
LOCK
(b) Unlock stage
RERR
CKST
RDATA
PLL locked status
LOCK
UNLOCK
SDIN data
Muted
Demodulation data
SDIN data
Demodulation data
Muted
PLL locked status
Figure 8.9. RDATA Output Data Switch Timing Chart
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