參數(shù)資料
型號(hào): ST75C540FP-A
廠商: 意法半導(dǎo)體
英文描述: SUPER INTEGRATED DEVICESWITH DSP, AFE & MEMORIES FORTELEPHONY,MODEM, FAXOVERINTERNET& POTSLINES
中文描述: 超級(jí)綜合DEVICESWITH數(shù)字信號(hào)處理器,模擬前端
文件頁數(shù): 50/84頁
文件大?。?/td> 599K
代理商: ST75C540FP-A
Transmit
SCR1
Data
T10
T11 min
STA_H
P1s
P2s
PNs
PRs
SCR1s
Receive
T13
STA_HR
STA_109F
PRDETs
PNSUCs
STA_109
RxData
PNs
PNDETs
(3)
T12
(3)
(3)
(3)
(6)
7
Mode
V.17
V.17 short
V.29
V.29 short
V.27 4800
V.27 4800 short
V.27 2400
V.27 2400 short
T10
13
13
13
13
20
20
27
27
T11
20
20
20
20
30
30
40
40
T12
8
8
8
8
8
8
8
8
T13
25
25
25
25
25
25
25
25
Unit
ms
ms
ms
ms
ms
ms
ms
ms
Notes : 1.
In the case of V.29or V.27, PRs and PRDETs bitsare not active.
PNSUCs indicates the quality of theRx signal that will give a ber of approximation of 1e
-5
.
After sending the command SYNC0, all bits are reset.
When using long echo protection tone, otherwise 0.
When using short echo protection tone, otherwise 0.
STA-106 is set at the end of T6 and reset at the beginningof T10.
After sending the command SYNC1, this bit is set.
PNSUC is evaluatedtwice,first at SCR1 detection and further 256 baud (V.29,V.17,V.33 : 106ms ; V.27 4800bps : 160ms ;
V.272400bps : 212ms) after STA_109.
For V.21 channel 2, timing for loss of STA_109 is 25ms and timing for detection of STA_109is 7ms.
For V.21 channel 2 after a STOPcommand, STA_H is set to “1” during 13ms when the last HDLC flag is transmitted.
2.
3.
4.
5.
6.
7.
8.
9.
10.
VIII - STATUS DESCRIPTION
(continued)
ST75C530 - ST75C540
50/84
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