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參數(shù)資料
| 型號： | 73K224L-IP |
| 廠商： | TDK Corporation |
| 英文描述： | V.22bis/V.22/V.21/ Bell 212A/Bell 103 Single-Chip Modem |
| 中文描述： | V.22bis/V.22/V.21 /貝爾212A/Bell 103單芯片調(diào)制解調(diào)器 |
| 文件頁數(shù)： | 14/32頁 |
| 文件大小： | 206K |
| 代理商： | 73K224L-IP |
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73K224L
V.22bis/V.22/V.21/Bell 212A/Bell 103
Single-Chip Modem
14
TONE REGISTER
(continued)
D7
D6
D5
D4
D3
D2
D1
D0
TR
011
RXD
OUTPUT
CONTR.
TRANSMIT
GUARD
TONE
TRANSMIT
ANSWER
TONE
TRANSMIT
DTMF
DTMF 3
DTMF 2/4
WIRE FDX
DTMF 1/
EXTENDED
OVER- SPEED
DTMF 0/
ANSWER/
GUARD
BIT NO.
NAME
CONDITION
D5
DESCRIPTION
D4
D0
D5 interacts with bits D4 and D0 as shown. Also interacts
with DR bit D2 in originate mode. See Detect Register
description.
0
1
0
0
X
0
Disables answer tone generator.
In answer mode, a Bell 2225 Hz tone is transmitted
continuously when the Transmit Enable bit is set.
Likewise, a CCITT 2100 Hz answer tone is transmitted.
D5
Transmit
Answer Tone
1
0
1
0
Disables guard tone generator.
D6
Transmit
Guard Tone
1
Enables guard tone generator. (See D0 for selection of
guard tones.) Bit D4 must be zero.
0
1
Enables RXD pin. Receive data will be output on RXD.
D7
RXD Output
Control
Disables RXD pin. The RXD pin reverts to a high
impedance with internal weak pull-up resistor.
CONTROL REGISTER 2
D7
0
D6
D5
D4
D3
D2
D1
D0
CR2
100
SPEC REG
ACCESS
CALL INIT
TRANSMIT
S1
16 WAY
RESET
DSP
TRAIN
INHIBIT
EQUALIZER
ENABLE
BIT NO.
NAME
CONDITION
DESCRIPTION
0
The adaptive equalizer is in its initialized state.
D0
Equalizer
Enable
1
The adaptive equalizer is enabled. This bit is used in
handshakes to control when the equalizer should calculate
its coefficients.
0
The adaptive equalizer is active.
D1
Train Inhibit
1
0
The adaptive equalizer coefficients are frozen.
The DSP is inactive and all variables are initialized.
D2
RESET DSP
1
The DSP is running based on the mode set by other control
bits
0
The receiver and transmitter are using the same decision
plane (based on the Modulator Control Mode).
D3
16 Way
1
The receiver, independent of the transmitter, is forced into a
16 point decision plane. Used for QAM handshaking.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K321L-IH | CCITT V.23, V.21 Single-Chip Modem |
| 73K321L-IP | CCITT V.23, V.21 Single-Chip Modem |
| 73K321L | Miniature Switch, High Precision |
| 73K322L-IH | CCITT V.23, V.22, V.21 Single-Chip Modem |
| 73K322L-IP | CCITT V.23, V.22, V.21 Single-Chip Modem |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 73K224L-IP/F | 功能描述:電信集成電路 RoHS:否 制造商:STMicroelectronics 類型:Telecom IC - Various 工作電源電壓:4.75 V to 5.25 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| 73K244L-IP | 制造商:TDK 功能描述:Single Chip Modem |
| 73K302L | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
| 73K302L-IH | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
| 73K302L-IP | 制造商:TDK 制造商全稱:TDK Electronics 功能描述:Single-Chip Modem |
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