W6811 Datasheet, PDF (18/37 Pages) Winbond – SINGLE-CHANNEL VOICEBAND CODEC

W6811
T _FS
FST
T _{FSR H}
B C L K T -1
PC M T
PC M R
T _FSFH
T _{FSR S}
T_BCKH
T_BCKL
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
T_{BD TD}
T_{BD TD}
T _{H ID}
T_{BD TD}
T
B
D
T_B
TD
C
K
T _{H ID}
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
M SB
LSB
T_DRS
T_{D RH}
D7 D6 D5 D4 D3 D2 D1 D0
M SB
LSB
M SB
LSB
T_{D RS}
T_DRH
D7 D6 D5 D4 D3 D2 D1 D0
M SB
LSB
BCH = 0
B 1 C hannel
BCH = 1
B 2 C hannel
Figure 8.3 IDL PCM Timing
SYMBOL
1/T_FS
1/T_BCK
T_BCKH
T_BCKL
T_FSRH
T_FSRS
T_FSFH
T_BDTD
T_HID
T_DRS
T_DRH
DESCRIPTION
MIN
TYP
FST Frequency
---
8
BCLKT Frequency
256
---
BCLKT High Pulse Width
50
---
BCLKT Low Pulse Width
50
---
BCLKT –1 Falling Edge to FST Rising 20
---
Edge Hold Time
FST Rising Edge to BCLKT 0 Falling edge 60
---
Setup Time
BCLKT 0 Falling Edge to FST Falling Edge 20
---
Hold Time
BCLKT Rising Edge to Valid PCMT Delay 10
---
Time
Delay Time from the BCLKT 8 Falling 10
---
Edge (B1 channel) or BCLKT 18 Falling
Edge (B2 Channel) to PCMT Output High
Impedance
Valid PCMR to BCLKT Falling Edge Setup 20
---
Time
PCMR Hold Time from BCLKT Falling 75
---
Edge
Table 8.3 IDL PCM Timing Parameters
- 18 -
MAX
---
4096
---
---
---
UNIT
kHz
kHz
ns
ns
ns
---
ns
---
ns
60
ns
50
ns
---
ns
---
ns