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參數(shù)資料
| 型號(hào)： | 73K302L-IH |
| 廠商： | TDK Corporation |
| 英文描述： | Single-Chip Modem |
| 中文描述： | 單芯片調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 13/29頁 |
| 文件大?。?/td> | 282K |
| 代理商： | 73K302L-IH |
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73K302L
Bell 212A, 103, 202
Single-Chip Modem
13
TONE REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
TR
011
RXD
OUTPUT
CONTR.
TRANSMIT
SOFT
CARRIER
TURN-OFF
TONE
TRANSMIT
ANSWER
TONE
TRANSMIT
DTMF
DTMF 3
DTMF 2/
202
FDX
DTMF 1/
OVER-
SPEED
DTMF 0/
SPECIAL
TONE SEL
BIT NO.
NAME
CONDITION
DESCRIPTION
D5
D4
D0
D0 interacts with bits D5, D4, and CR0 as shown.
0
1
X
Transmit DTMF tones.
2225 Hz answer tone will be detected in D2 of DR if
originate mode is selected in CR0.
0
0
0
900 Hz SCT tone will be detected in D2 of DR if Bell 202
answer mode is selected in CR0.
X
0
1
Mark of an FSK mode selected in CR0 is to be detected
in D2 of DR.
1
0
0
2225 Hz answer tone will be generated when in answer
mode and transmit enable is selected in CR0.
1
0
1
2100 Hz answer tone will be generated when in answer
mode and transmit enable is selected in CR0.
D0
DTMF 0/
Special Tone
Detect/Select
D4
D1
D1 interacts with D4 as shown.
0
0
Asynchronous DPSK 1200 bit/s +1.0% -2.5%.
D1
DTMF 1/
Overspeed
0
1
Asynchronous DPSK 1200 bit/s +2.3% -2.5%.
0
Enables 202 half-duplex operation if TR D4 = 0
D2
DTMF2/202T
FDX
1
Enables 202 full-duplex operation if TR D4 = 0
D3
D2 D1 D0
0
1
0
1
0
1
0 -
1
Programs 1 of 16 DTMF tone pairs that will be transmitted
when TX DTMF and TX enable bit (CR0, bit D1) are set.
Tone encoding is shown below:
KEYBOARD
EQUIVALENT
DTMF CODE
D3 D2 D1 D0
TONES
LOW
HIGH
1
0
0
0
1
697
1209
2
0
0
1
0
697
1336
3
0
0
1
1
697
1477
4
0
1
0
0
770
1209
5
0
1
0
1
770
1336
6
0
1
1
0
770
1477
7
0
1
1
1
852
1209
8
1
0
0
0
852
1336
9
1
0
0
1
852
1477
D3, D2, D1, D0
DTMF 3, 2,
1, 0
0
1
0
1
0
941
1336
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PDF描述 |
|---|---|
| 73K302L-IP | Single-Chip Modem |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73K302L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
| 73K321L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.21 Single-Chip Modem |
| 73K322L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:CCITT V.23, V.22, V.21 Single-Chip Modem |
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