W681513_05 Datasheet, PDF (18/35 Pages) Winbond – 5V SINGLE-CHANNEL VOICEBAND CODEC FOR USB APPLICATIONS

W681513
T_FS
FST
T_FSRH
T_FSFH
T_FSRS
T_BCKH T_BCKL
BCLKT
PCMT
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34
T_FDTD
T_BDTD
T_HID T_BDTD
T_BDTD T_BCK
T_HID
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0
PCMR
MSB
T_DRS
T_DRH
LSB MSB
T_DRS
T_DRH
LSB
D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 _D1 D0
MSB
LSB MSB
LSB
BCH = 0
B1 Channel
BCH = 1
B2 Channel
Figure 8.4 GCI PCM Timing
SYMBOL
1/T_FST
1/T_BCK
T_BCKH
T_BCKL
T_FSRH
T_FSRS
T_FSFH
T_FDTD
T_BDTD
T_HID
T_DRS
T_DRH
DESCRIPTION
MIN TYP
FST Frequency
--- 8
BCLKT Frequency
2000 ---
BCLKT HIGH Pulse Width
50 ---
BCLKT LOW Pulse Width
50 ---
BCLKT 0 Falling Edge to FST Rising Edge Hold Time 20 ---
FST Rising Edge to BCLKT 1 Falling edge Setup Time 60 ---
BCLKT 1 Falling Edge to FST Falling Edge Hold Time 20 ---
FST Rising Edge to Valid PCMT Delay Time
--- ---
BCLKT Rising Edge to Valid PCMT Delay Time
---
---
Delay Time from the BCLKT 16 Falling Edge (B1 10 ---
channel) or BCLKT 32 Falling Edge (B2 Channel) to
PCMT Output High Impedance
Valid PCMR to BCLKT Rising Edge Setup Time
20 ---
PCMR Hold Time from BCLKT Rising Edge
--- ---
Table 8.4 GCI PCM Timing Parameters
MAX
---
2000
---
---
---
---
---
60
60
50
UNIT
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
---
ns
60 ns
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