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參數(shù)資料
| 型號： | 73K322L |
| 廠商： | TDK Corporation |
| 英文描述： | CCITT V.23, V.22, V.21 Single-Chip Modem(CCITT V.23, V.22, V.21單片Modem) |
| 中文描述： | 國際電話電報諮詢委員會.23，.22，.21單芯片調(diào)制解調(diào)器（國際電話電報諮詢委員會.23，.22，.21單片調(diào)制解調(diào)器） |
| 文件頁數(shù)： | 12/30頁 |
| 文件大?。?/td> | 316K |
| 代理商： | 73K322L |
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73K322L
CCITT V.23, V.22, V.21
Single-Chip Modem
12
DETECT REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
DR
010
RECEIVE
DATA
UNSCR.
MARK
CARR.
DETECT
SPECIAL
TONE
CALL
PROG.
LONG
LOOP
BIT NO.
NAME
CONDITION
DESCRIPTION
0
Indicates normal received signal.
D0
Long Loop
1
Indicates low received signal level.
0
No call progress tone detected.
D1
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.
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 or V.22 originate mode.
(2) 1300 Hz calling tone if D0 of TR=1 and the device is
in V.21, or V.22 answer mode.
(3) An FSK mark if D0 of TR = 0.
D2
Special Tone
Detect
1
Tolerance on special tones is ±3%.
0
No carrier detected in the receive channel.
D3
Carrier Detect
1
Indicated carrier has been detected in the received
channel.
0
No unscrambled mark.
D4
Unscrambled
Mark
1
Indicates detection of unscrambled marks in the received
data. A valid indication requires that unscrambled marks
be received for > 165.5 ± 6.5 ms.
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73M223 | 1200 Baud FSK Modem |
| 73M223-CL | 1200 Baud FSK Modem |
| 73M223-CP | 1200 Baud FSK Modem |
| 73M2901CL | V.22 BIS SINGLE CHIP MODEM |
| 73M2901CLIGT | V.22 BIS SINGLE CHIP MODEM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 73K324BL | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Chip Modem w/ Integrated Hybrid |
| 73K324BL-IGT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Modem w/Integrated Hybrid |
| 73K324BL-IH | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Modem w/Integrated Hybrid |
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