參數(shù)資料
型號(hào): 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(yè)數(shù): 20/41頁(yè)
文件大小: 256K
代理商: TLC320AD55C
3–2
Figure 3–1 shows the timing relationship for SCLK, FS, DOUT and DIN in a primary communication. The
timing sequence for this operation is as follows:
1.
The TLC320AD55C takes FS low.
2.
One 16-bit word is transmitted from the ADC (DOUT) and one 16-bit word is received for the DAC
(DIN).
3.
The TLC320AD55C takes FS high.
D15
D14
...D2
D1
tdis
SCLK
FS
tsu
td1
ten
D0
D15
MSB
D14
...D2
D1
th
D0
LSB
DIN
DOUT
In 16-Bit Mode:
tsu
D15
D14
...D2
D1
th
FC
DIN
In 16-Bit Mode:
MSB
LSB
MCLK
0th
1st
2nd
14th
15th
16th
VIH
VIL
VOH
VOL
VOH
VOL
Figure 3–1. Primary Serial Communication Timing
When a secondary request is made through the LSB of the DAC data word (16-bit mode), the format shown
in Figure 3–2 is used:
D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
15-bit DAC
2s-complement format
16-bit ADC
2s-complement format
control
Figure 3–2. DAC and ADC Word Lengths
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