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參數(shù)資料
| 型號(hào)： | T5744-TKS |
| 廠商： | ATMEL CORP |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | UHF ASK Receiver |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO20 |
| 封裝： | SSO-20 |
| 文件頁數(shù)： | 10/20頁 |
| 文件大?。?/td> | 277K |
| 代理商： | T5744-TKS |
10
T5744
4521B–RKE–01/03
Figure 10.
Enable Timing (1)
Figure 11.
Enable Timing (2)
Digital Signal
Processing
The data from the ASK demodulator (Dem_out) is digitally processed in different ways
and as a result converted into the output signal DATA. This processing depends on the
selected baudrate range (BR_Range). Figure 12 illustrates how Dem_out is synchro-
nized by the extended basic clock cycle T
XClk
. Data can change its state only after T
XClk
has elapsed. The edge-to-edge time period tee_sig of the DATA signal as a result is
always an integral multiple of T
XClk
.
The minimum time period between two edges of the data signal is limited to tee_sig
TDATA_min. This implies an efficient suppression of spikes at the DATA output. At the
same time it limits the maximum frequency of edges at DATA. This eases the interrupt
handling of a connected microcontroller.
Dem_out
ENABLE
DATA
Sleep mode
I
S
= I
Soff
Start-up mode
I
S
= I
Son
Receiving mode
I
S
= I
Son
T
Start-up
t
ee_sig
Dem_out
ENABLE
DATA
Sleep mode
I
S
= I
Soff
Start-up mode
I
S
= I
Son
T
Start-up
Receiving mode
I
S
= I
Son
t
ee_sig
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