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STA310 データシート(PDF) 11 Page - STMicroelectronics

部品番号 STA310
部品情報  62-CH. MULTISTANDARD AUDIO DECODER
PDF  90 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA310 データシート(HTML) 11 Page - STMicroelectronics

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STA310
4.2 Clocks
There are two embedded PLLs in the STA310: the system PLL and the PCM PLL.
The following is the block diagram of the system and audio clocks used in the STA310
Figure 3. PLL Block Diagram
Figure 4. Block Diagram of Functional PLL
SPDIF
PLL Audio
PLL Sys
plls_config
78
RXN
RXP
Periph 2
Periph 3
/ N
CLK
CLKOUT
Periph 1
W
R
I
SCLOCK
LRCLK
PCMOUT0,1,2,3
PCMCLK
pcm_clk
sys_clk
DSP Core
PCM_OUT
sys_clockout
VCO
Charge
Pump
DIV M+1
Switching
Circuit
DIV (X+1)
PFD
R
C
C3
Ip
Uvco
Frac
dN
Oclk
analog part
Filter (external)
DIV N+1
ClkIn
(27MHz)
pll_disable
update_frac



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