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參數(shù)資料
| 型號： | 73K324BL |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Single-Chip Modem w/Integrated Hybrid |
| 中文描述： | 單芯片調(diào)制解調(diào)器瓦特/集成混合 |
| 文件頁數(shù)： | 19/34頁 |
| 文件大?。?/td> | 319K |
| 代理商： | 73K324BL |
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73K324BL
V.22bis/V.22/V.21/V.23 Bell 212A
Single-Chip Modem w/Integrated Hybrid
19
SPECIAL REGISTER
D7
D6
D5
D4
D3
D2
D1
D0
SR
101
0
TXBAUD
CLOCK
RXUN-
DSCR
DATA
0
TXD
SOURCE
SIGNAL
QUALITY
LEVEL
SELECT 1
SIGNAL
QUALITY
LEVEL
SELECT 0
0
BIT
D7, D4, D0
D6
NAME
DESCRIPTION
Not used at this time. Only write zeros to these bits.
TXBAUD clock is the transmit baud-synchronous clock that can be used to
synchronize the input of arbitrary quad/di-bit patterns. The rising edge of
TXBAUD signals the latching of a baud-worth of data internally. Synchronous
data to be entered via the TXDALT bit, CR3 bit D7, should have data
transitions that start 1/2 bit period delayed from the TXBAUD clock edges.
This bit outputs the data received before going to the descrambler.
This is useful for sending special unscrambled patterns that can be used for -
signaling.
This bit selects the transmit data source; either the TXD pin if zero or the
TXDALT if this bit is a one. The transmit pattern bits D7 and D6 in CR1
override either of these sources.
The signal quality indicator is a logical zero when the signal received is
acceptable for low error rate reception. It is determined by the value of the
mean squared error (MSE) calculated in the decisioning process when
compared to a given threshold. This threshold can be set to four levels of
error rate. The SQI bit will be low for good or average connections. As the
error rate crosses the threshold setting, the SQI bit will toggle at a 1.66 ms
rate. Toggling will continue until the error rate indicates that the data pump
has lost convergence and a retrain is required. At that point the SQI bit will be
a one constantly. The SQI bit and threshold selection are valid for QAM and
DPSK only and indicates typical error rate.
THRESHOLD VALUE
UNITS
10
-5
BER (default)
10
-6
BER
10
-4
BER
10
-3
BER
NOTE: This register is "mapped" and is accessed by setting CR2 bit D6 to a one and addressing CR3. This
register provides functions to the 73K324BL user that are not necessary in normal communications. Bits
D7-D4 are read only, while D3-D0 are read/write. To return to normal CR3 access, CR2 bit D6 must be
returned to a zero.
TXBAUD CLK
D5
RXUNDSCR
Data
D3
TXD Source
D2, D1
Signal Quality
Level Select
D2
0
0
1
1
D1
0
1
0
1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 73K324BL-IGT | CONN, SHROUDED HDR, 34PIN, MALE, 0.100 |
| 73K324BL-IH | Four Wall Header; No. of Contacts:34; Pitch Spacing:0.1"; No. of Rows:2; Gender:Header; Body Material:Glass-filled Polyester; Contact Plating:Nickel; Leaded Process Compatible:No; Mounting Type:Through Hole RoHS Compliant: No |
| 73K324L | EMBASE |
| 73K324L-28IH | COSSE |
| 73K324L-IGT | CCITT V.22bis, V.22, V.21, V.23, Bell 212A Single-Chip Modem |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 73K324BL-IH/F | 功能描述:電信集成電路 Single Chip Modem w/Integrated Hybrid 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(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| 73K324BL-IHR/F | 功能描述:電信集成電路 Single Chip Modem w/Integrated Hybrid 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(fēng)格:SMD/SMT 封裝 / 箱體:PQFP-100 封裝:Tray |
| 73K324L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CCITT V.22bis, V.22, V.21, V.23, Bell 212A Single-Chip Modem |
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