W681513 Datasheet, PDF (17/33 Pages) Winbond – 5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS

W681513
T _FS
FST
T _{FSR H}
T _FSFH
T_{FSR S}
T_{BCK H}
T_BCKL
B C LK T -1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
PC M T
T_{BD TD}
T_{BD TD}
T_{H ID}
D7 D6 D5 D4 D3 D2 D1 D0
T_{BD TD}
T
B
D
T_B
TD
C
K
T _{H ID}
D7 D6 D5 D4 D3 D2 D1 D0
PC M R
M SB
LSB
T_{D RS}
T_DRH
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
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
FST Frequency
---
BCLKT Frequency
2000
BCLKT High Pulse Width
50
BCLKT Low Pulse Width
50
BCLKT –1 Falling Edge to FST Rising Edge 20
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 Edge 10
(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 Edge 75
Table 8.3 IDL PCM Timing Parameters
TYP
8
---
---
---
---
---
---
---
---
---
---
MAX
---
2000
---
---
---
UNIT
kHz
kHz
ns
ns
ns
---
ns
---
ns
60
ns
50
ns
---
ns
---
ns
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Publication Release Date: October 1, 2003
Revision A3