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STA680 Scheda tecnica(PDF) 27 Page - STMicroelectronics

Il numero della parte STA680
Spiegazioni elettronici  HD Radio base-band receiver
PDF  43 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STA680 Scheda tecnica(HTML) 27 Page - STMicroelectronics

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STA680
Digital I/O and memory interfaces
27/43
Figure 9.
BBI waveforms and timings
In Table 7 are reported the timing values for the BB interface.
I15 I14
I13 I12
I11 I10
I9
I8
I7
I6
I5
I4
I3
I2
I1
I0
Q15 Q14 Q13 Q12 Q11 Q10 Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
I15 I14
I13 I12
I11 I10
I9
I8
I7
I6
I5
I4
I3
I2
I1
I0
Q15 Q14 Q13 Q12 Q11 Q10 Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
I15 I14
I13
I12
I11 …
…
I4
I3
I2
I1
I0
I15 I14
I13
I12
I11 ……
I4
I3
I2
I1
I0
Q15 Q14 Q13 Q12 Q11 ...
...
Q4
Q3
Q2
Q1
Q0
Q15 Q14 Q13 Q12 Q11 …
…
Q4
Q3
Q2
Q1
Q0
Sample N (I and Q)
Sample N+1 (I and Q)
Split Mode
BBx_WS
BBx_BCK
BBx_I
BBx_Q
Sample N (I)
Sample N (Q)
Sample N (I)
Sample N (Q)
BBx_WS
BBx_BCK
BBx_I
Multiplexed Mode
I15 I14
I13 I12
I11 I10
I9
I8
I7
I6
I5
I4
I3
I2
I1
I0
Q15 Q14 Q13 Q12 Q11 …
…
Q4
Q3
Q2
Q1
Q0
Sample N (I)
Sample N (Q)
BBx_WS
BBx_BCK
BBx_I
AFE Mode
Ts
Th
Th
Ts
Th
Ts
2/Fws
1/Fws
1/Fws
1/Fbck,mux
1/Fbck,split
1/Fbck,afe
AC00713
Table 7.
BBI timing values
Symbol
Parameter
Condition
Working rate
Unit
Fws
Word strobe
650
675
744.188
882
912
kHz
Fbck,split
Bit clock in split mode
16 x Fws
-
-
66
-
MHz
Fbck,mux
Bit clock in multiplexed
mode
32 x Fws
-
-
32 x Fws
-
MHz
Fbck,afe
Bit clock in AFE mode
32 x Fws
66
MHz
Th
Data hold time
4
ns
Ts
Data setup time
8
ns



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