參數(shù)資料
型號: TWL1110TQFP
廠商: Texas Instruments, Inc.
英文描述: VOICE-BAND AUDIO PROCESSOR VBAPE
中文描述: 語音頻帶音頻處理器VBAPE
文件頁數(shù): 32/37頁
文件大?。?/td> 496K
代理商: TWL1110TQFP
TWL1110
VOICE-BAND AUDIO PROCESSOR (VBAP
)
SLWS103 – NOVEMBER 2000
32
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
0
1
2
3
4
N–2
N–1
N
N+1
Transmit Time Slot
1
2
3
4
N–2
N–1
N
80%
20%
tsu(PCMSYN)
th(PCMSYN)
See Note A
See Note C
See Note B
tpd2
tpd1
See Note D
tsu(PCMO)
tpd3
80%
20%
PCMCLK
PCMSYN
PCMO
NOTES: A. This window is allowed for PCMSYN high.
B. This window is allowed for PCMSYN low (th(PCMSYN)max determined by data collision considerations).
C. Transitions are measured at 50%.
D. Bit 1 = MSB, Bit N = LSB
Figure 8. Transmit Timing Diagram (2.048 MHz)
80%
20%
See Note C
PCMI
PCMSYN
PCMCLK
0
1
2
3
4
N –2
N –1
N
N +1
20%
80%
1
2
3
4
N –2
N –1
N
See Note D
tsu(PCMSYN)
See Note A
tsu(PCMI)
th(PCMI)
See Note B
Receive Time Slot
NOTES: A. This window is allowed for PCMSYN high.
B. This window is allowed for PCMSYN low.
C. Transitions are measured at 50%.
D. Bit 1 = MSB, Bit N = LSB
Figure 9. Receive Timing Diagram (2.048 MHz)
t(BUF)
thd(STA)
thd(DAT)
t(Low)
tr
tf
t(HIGH)
tsu(DAT)
tsu(STA)
thd(STA)
tsu(STO)
STO
STA
STA
STO
SDA
SCL
Figure 10. I
2
C-Bus Timing Diagram
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