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參數(shù)資料
| 型號： | 73K321L |
| 廠商： | TDK Corporation |
| 英文描述： | Miniature Switch, High Precision |
| 中文描述： | 國際電話電報(bào)諮詢委員會.23，.21單芯片調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 10/24頁 |
| 文件大?。?/td> | 140K |
| 代理商： | 73K321L |
73K321L
CCITT V.23, V.21
Single-Chip
10
DETECT REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
DR
010
X
X
RECEIVE
DATA
X
CARR.
DETECT
SPECIAL
TONE
CALL
PROG.
LONG
LOOP
BIT NO.
NAME
CONDITION
DESCRIPTION
D0
D1
Long Loop
0
1
Indicates normal received signal.
Indicates low received signal level.
0
No call progress tone detected.
Call Progress
Detect
1
Indicates presence of call progress tones. The call progress
detection circuitry is activated by energy in the normal 350
to 620 Hz call progress band when CR0 D2 =1.
D2
Special Tone
Detect
0
No special tone detected as programmed by CR0 bit D0
and Tone Register bit D0.
Special tone detected. The detected tone is:
(1) 2100 Hz answer tone if D0 of TR=1 and the device is
in V.21 Originate mode.
(2) 1300 Hz calling tone if D0 of TR=1 and the device is
in V.21 or V.23 Answer mode.
(3) an FSK mark for the mode the device is set to receive
in if D0 of TR = 0.
1
NOTE: Tolerance on special tones is ±3%.
No carrier detected in the receive channel.
0
D3
Carrier
Detect
1
Indicated carrier has been detected in the received
channel.
D4
Unused
Undefined
Not used in the 73K321L. Mask in software.
D5
Receive Data
Continuously outputs the received data stream. This data
is the same as that output on the RXD pin, but it is not
disabled when RXD is tri-stated.
D6, D7
Not Used
Undefined
Mask in software.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K322L-IH | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IP | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L | CCITT V.23, V.22, V.21 Single-Chip Modem(CCITT V.23, V.22, V.21單片Modem) |
| 73M223 | 1200 Baud FSK Modem |
| 73M223-CL | 1200 Baud FSK Modem |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 73K322L-IH | 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 |
| 73K322L-IP | 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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