參數(shù)資料
型號(hào): PEB3065
廠商: SIEMENS AG
元件分類: Codec
英文描述: Signal Processing Subscriber Line Interface Codec Filter SLICOF
中文描述: 信號(hào)處理用戶線路接口編解碼器SLICOF
文件頁(yè)數(shù): 93/102頁(yè)
文件大?。?/td> 563K
代理商: PEB3065
PEB 3065
PEF 3065
Appendix
Semiconductor Group
93
01.98
TVP
(Teletax voltage present)
This testloop feasibles the test of the teletax burst level which includes the test of TTX
adaptation and basic functions of HV-SLIC.
Initializing the testloop:
Reset
Store owns coefficients and voltage level for measurement (generated by SLICOS)
Select programmed coefficients (FIXC (SCR5_5) = 0)
Active Mode, Teletax Burst On: TTXNO (SCR3_7) = 0
Testloop
Test condition is indicated in MVA (SCR2_7) and result of the comparison is stored in
OKTTX (SCR2_5). The rectified value can get at PCM Output, too. (During the testloop
the last DC value is hold.)
Figure 36
ITS10188
A
D
A
D
+
V2W
AC
LOOP
LP03
AG
DCX
ITAC
AG
DCR
LP5
CHAR
DC
RECT
CMP
COMP
+
EXP
RNG
OK
MEAN
VAL.
THRESH
Output
PCM
Input
PCM
IT
TTX
AG
A
D
GEN
TTX
DAC-HOLD
TTXK
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