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AT83SND1CXXX-ROTUL bảng dữ liệu(PDF) 14 Page - ATMEL Corporation

tên linh kiện AT83SND1CXXX-ROTUL
Giải thích chi tiết về linh kiện  Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
PDF  212 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT83SND1CXXX-ROTUL bảng dữ liệu(HTML) 14 Page - ATMEL Corporation

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14
4109J–8051–10/06
AT8xC51SND1C
Figure 5-4.
PLL Block Diagram and Symbol
Figure 5-5.
PLL Filter Connection
5.3.2
PLL Programming
The PLL is programmed using the flow shown in Figure 5-6. As soon as clock generation is
enabled, the user must wait until the lock indicator is set to ensure the clock output is stable. The
PLL clock frequency will depend on MP3 decoder clock and audio interface clock frequencies.
Figure 5-6.
PLL Programming Flow
PLLEN
PLLCON.1
N6:0
N divider
R divider
VCO
PLLclk
OSCclk
R
1
+
()
×
N1
+
-----------------------------------------------
=
OSC
CLOCK
PFLD
PLOCK
PLLCON.0
PFILT
CHP
Vref
Up
Down
R9:0
PLL
CLOCK
PLL Clock Symbol
PLL
Clock
VSS
FILT
R
C1
C2
VSS
PLL
Programming
Configure Dividers
N6:0 = xxxxxxb
R9:0 = xxxxxxxxxxb
Enable PLL
PLLRES = 0
PLLEN = 1
PLL Locked?
PLOCK = 1?



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