ADSP-BF526BBCZ-3AX View Datasheet(PDF) - Analog Devices
Part Name
Description
MFG CO.
ADSP-BF526BBCZ-3AX Datasheet PDF : 80 Pages
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Preliminary Technical Data
Serial Ports
Table 37 through Table 40 on Page 51 and Figure 23 on Page 50
through Figure 25 on Page 51 describe serial port operations.
Table 37. Serial Ports—External Clock
Parameter
Timing Requirements
tSFSE
TFSx/RFSx Setup Before TSCLKx/RSCLKx1
tHFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx1
tSDRE
Receive Data Setup Before RSCLKx1
tHDRE
Receive Data Hold After RSCLKx1
tSCLKEW
TSCLKx/RSCLKx Width
tSCLKE
TSCLKx/RSCLKx Period
Switching Characteristics
tDFSE
TFSx/RFSx Delay After TSCLKx/RSCLKx
(Internally Generated TFSx/RFSx)2
tHOFSE
TFSx/RFSx Hold After TSCLKx/RSCLKx
(Internally Generated TFSx/RFSx)1
tDDTE
Transmit Data Delay After TSCLKx1
tHDTE
Transmit Data Hold After TSCLKx1
1 Referenced to sample edge.
2 Referenced to drive edge.
Table 38. Serial Ports—Internal Clock
Parameter
Timing Requirements
tSFSI
TFSx/RFSx Setup Before TSCLKx/RSCLKx1
tHFSI
TFSx/RFSx Hold After TSCLKx/RSCLKx1
tSDRI
Receive Data Setup Before RSCLKx1
tHDRI
Receive Data Hold After RSCLKx1
Switching Characteristics
tSCLKIW
tSCLKI
tDFSI
TSCLKx/RSCLKx Width
TSCLKx/RSCLKx Period
TFSx/RFSx Delay After TSCLKx/RSCLKx
(Internally Generated TFSx/RFSx)2
tHOFSI
tDDTI
tHDTI
TFSx/RFSx Hold After TSCLKx/RSCLKx
(Internally Generated TFSx/RFSx)1
Transmit Data Delay After TSCLKx1
Transmit Data Hold After TSCLKx1
1 Referenced to sample edge.
2 Referenced to drive edge.
ADSP-BF522/523/524/525/526/527
ADSP-BF522/524/526
VDDEXT =
1.8 V
VDDEXT =
2.5/3.3 V
Min Max Min Max
ADSP-BF523/525/527
VDDEXT =
1.8 V
VDDEXT =
2.5/3.3 V
Min Max Min Max Unit
3.0
3.0
3.0
3.0
ns
3.0
3.0
3.0
3.0
ns
3.0
3.0
3.0
3.0
ns
3.6
3.6
3.5
3.0
ns
5.4
5.4
7.0
4.5
ns
18.0
18.0
20.0
15.0
ns
12.0
12.0
10.0
10.0 ns
0.0
0.0
0.0
0.0
ns
12.0
12.0
10.0
10.0 ns
0.0
0.0
0.0
0.0
ns
ADSP-BF522/524/526
VDDEXT =
1.8 V
VDDEXT =
2.5/3.3 V
Min Max Min Max
ADSP-BF523/525/527
VDDEXT =
1.8 V
VDDEXT =
2.5/3.3 V
Min Max Min Max Unit
11.3
11.3
11.0
9.6
ns
–1.5
–1.5
–1.5
–1.5
ns
11.3
11.3
11.0
9.6
ns
–1.5
–1.5
–1.5
–1.5
ns
5.4
5.4
4.5
4.5
ns
18.0
18.0
20.0
15.0
ns
3.0
3.0
3.0
3.0 ns
−4.0
−4.0
−1.0
−1.0
ns
3.0
3.0
3.0
3.0 ns
−1.8
−1.8
−1.8
−1.5
ns
Rev. PrG | Page 49 of 80 | February 2009
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