參數(shù)資料
型號: TLC320AD55C
廠商: Texas Instruments, Inc.
英文描述: Sigma-Delta Analog Interface Circuit(Sigma-Delta 模擬接口)
中文描述: sigma - delta模擬接口電路(Σ-Δ模擬接口)
文件頁數(shù): 22/41頁
文件大?。?/td> 256K
代理商: TLC320AD55C
3–4
Table 3–1. Least-Significant-Bit Control Function
CONTROL BIT D0
0
1
CONTROL BIT FUNCTION
No operation (no-op)
Secondary communication request
On the falling edge of the next FS, D15 through D1 is input to DIN or D15 through D0 is output to DOUT.
When a secondary communication request is made, FS goes low for 32 FCLKs (see Fk divide register,
Appendix A) after the beginning of the primary frame.
Communication Frame 2 (CF2)
DOUT
DOUT
8
SCLKs
16
SCLKs
DIN
DAC Data In
ADC Data
Out
DAC Data In
All Bits 0
Secondary
Update
16 SCLKs
64 FCLKs
16 SCLKs
FS
FC
(Secondary
Read)
(Secondary
Read or Write)
Communication Frame 1 (CF1)
No Secondary
Request
ADC Data
Out
ADC Data
Out
ADC Data
Out
(Secondary
Write)
Primary
Secondary
Primary
64 FCLKs
Register
Data
32 FCLKs
(128 SCLKs when Fk = Fsclk)
See Fk divide register in Appendix A.
For a selected MCLK, Fk and Fsclk: SCLK = 2 Fk/Fsclk
×
FCLK
Figure 3–5. Hardware FC Secondary Request
(Phone Mode Disabled)
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