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TS7514 датащи(PDF) 8 Page - STMicroelectronics

номер детали TS7514
подробное описание детали  PROGRAMMABLE V.23 MODEM WITH DTMF
PDF  19 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TS7514 датащи(HTML) 8 Page - STMicroelectronics

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DTMF DIALING DATA REGISTER (RDTMF REGISTER)
Address
Data
Tone Frequency (Hz)
D7
D6
D5
D4
D3
D2
D1
D0
Low
High
P
001
X
X
00
697
X
X
X
0
1
770
X
X
X
1
0
852
X
X
X
1
1
941
X
0
0
X
X
X
1209
0
1
X
X
X
1336
1
0
X
X
X
1477
1
1
X
X
X
1633
Notes : This register is not initialized on power-up.
X : don’t care value.
P : 1,0 or X depending upon RPROG content.
DATA REGISTER FOR THE TRANSMISSION ATTENUATOR (RATE REGISTER)
Address
Data
Attenuation
(dB)
Output Transmit
Level (dBm)
On Line Level (dBm)
Coupler Gain (- 6dB)
D7
D6
D5
D4
D3
D2
D1
D0
P
010
00
00
0
+ 4
– 2
00
01
1
+ 3
00
10
2
+ 2
– 4
00
11
3
+ 1
– 5
01
00
4
0
– 6
01
01
5
– 1
– 7
01
10
6
– 2
– 8
01
11
7
– 3
– 9
10
00
8
– 4
– 10
10
01
9
– 5
– 11
10
10
10
– 6
– 12
10
11
11
– 7
– 13
11
00
12
– 8
– 14
11
01
13
– 9
– 15
1
1
1
0
Infinite
< – 64
< – 70
1
1
1
1
Infinite*
< – 64 *
< – 70 *
* Power-up configuration.
LINE MONITORING PROGRAMMING REGISTER (RWLO REGISTER)
Address
Data
Line Monitoring In Transmit
Mode Relative Level (dB)
Line Monitoring In Receive
Mode Relative Level (dB)
D7
D6
D5
D4
D3
D2
D1
D0
P
011
00
00
– 10
00
01
– 20
00
10
– 31
00
11
– 42
01
00
0
01
01
– 10
01
10
– 20
01
11
– 31
1
0
0
0
0.42 VPP
1
0
0
1
– 10dB
1
0
1
0
– 20dB
1
0
1
1
– 31dB
1
1
X
X
< – 60dB*
* Power-up configuration.
Note : Signaling frequency is a square wave signal at 2982Hz.
TS7514
8/19



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