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W681512 Datasheet, PDF (14/38 Pages) Winbond – SINGLE-CHANNEL VOICEBAND CODEC
W681512
SYMBOL
1/TFS
TFSL
1/TBCK
TBCKH
TBCKL
TFTRH
TFTRS
TFTFH
TFDTD
TBDTD
THID
TFRRH
TFRRS
TFRFH
TDRS
TDRH
DESCRIPTION
MIN
TYP
FST, FSR Frequency
FST / FSR Minimum LOW Width 1
BCLKT, BCLKR Frequency
---
8
TBCK
64
---
BCLKT, BCLKR HIGH Pulse Width
50
---
BCLKT, BCLKR LOW Pulse Width
50
---
BCLKT 0 Falling Edge to FST Rising
20
---
Edge Hold Time
FST Rising Edge to BCLKT 1 Falling
80
---
edge Setup Time
BCLKT 2 Falling Edge to FST Falling
50
---
Edge Hold Time
FST Rising Edge to Valid PCMT Delay
---
---
Time
BCLKT Rising Edge to Valid PCMT
Delay Time
---
---
Delay Time from the Later of FST
Falling Edge, or
10
---
BCLKT 8 Falling Edge to PCMT Output
High Impedance
BCLKR 0 Falling Edge to FSR Rising
20
---
Edge Hold Time
FSR Rising Edge to BCLKR 1 Falling
80
---
edge Setup Time
BCLKR 2 Falling Edge to FSR Falling
50
---
Edge Hold Time
Valid PCMR to BCLKR Falling Edge
0
---
Setup Time
PCMR Hold Time from BCLKR Falling
50
---
Edge
Table 8.1 Long Frame Sync PCM Timing Parameters
MAX
---
4096
---
---
---
UNIT
kHz
sec
kHz
ns
ns
ns
--- ns
--- ns
60 ns
60 ns
60 ns
--- ns
--- ns
--- ns
--- ns
--- ns
1 TFSL must be at least ≥ TBCK
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