w681511 Winbond Electronics Corp America, w681511 Datasheet - Page 14

• Manufacturer Part Number: w681511
• Description: Single-channel Voiceband Codec
• Manufacturer: Winbond Electronics Corp America

1
SYMBOL
1/T
T
1/T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
FSL
BCKH
BCKL
FTRH
FTRS
FTFH
FDTD
BDTD
HID
FRRH
FRRS
FRFH
DRS
DRH
FSL
FS
BCK
must be at least ≥ T
DESCRIPTION
FST, FSR Frequency
FST / FSR Minimum Low Width
BCLKT, BCLKR Frequency
BCLKT, BCLKR High Pulse Width
BCLKT, BCLKR Low Pulse Width
BCLKT 0 Falling Edge to FST Rising
Edge Hold Time
FST Rising Edge to BCLKT 1 Falling
edge Setup Time
BCLKT 2 Falling Edge to FST Falling
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
BCLKT 8 Falling Edge to PCMT Output
High Impedance
BCLKR 0 Falling Edge to FSR Rising
Edge Hold Time
FSR Rising Edge to BCLKR 1 Falling
edge Setup Time
BCLKR 2 Falling Edge to FSR Falling
Edge Hold Time
Valid PCMR to BCLKR Falling Edge
Setup Time
PCMR Hold Time from BCLKR Falling
Edge
BCK
Table 8.1 Long Frame Sync PCM Timing Parameters
1
- 14 -
MIN
---
T
64
50
50
20
80
50
---
---
10
20
80
50
0
50
BCK
TYP
8
---
---
---
---
---
---
---
---
---
---
---
---
---
---
MAX
---
4096
---
---
---
---
---
60
60
60
---
---
---
---
---
W681511
UNIT
kHz
sec
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns