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參數(shù)資料
| 型號(hào)： | MC145574 |
| 廠商： | Motorola, Inc. |
| 英文描述： | ISDN S/T-Interface Transceiver |
| 中文描述： | 綜合業(yè)務(wù)數(shù)字網(wǎng)S / T的接口收發(fā)器 |
| 文件頁(yè)數(shù)： | 144/164頁(yè) |
| 文件大?。?/td> | 1072K |
| 代理商： | MC145574 |
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MC145574
B–2
MOTOROLA
CIDCW
— Calling Identity Delivery on Call Waiting; a subscriber feature which allows for the display of the time, date, number,
and possible other information about the caller to the called party while the called party is off–hook.
CLASS
— Custom Local Area Signaling Service; a set of services, enhancements, provided to TELCO customers which may
include CND, CNAM, Message Waiting, and other features.
CLID
— Calling Line IDentification; a subscriber feature which allows for the display of the time, date, number, and possible
other information about the caller to the called party.
CNAM
— Calling Name Delivery; a subscriber feature which allows for the display of the time, date, number, and name of the
caller to the called party.
CND
— Calling Number Delivery; a subscriber feature which allows for the display of the time, date, number, and possible other
information about the caller to the called party.
CODEC
— COder–DECoder; the A/D and D/A function on a subscriber line card in a telephone exchange.
COFIDEC
— COder–Filter–DECoder; the combination of a codec, the associated filtering, and voltage references required to
code and decode voice in a subscriber line card.
Common Mode Rejection
— The ability of a device having a balanced input to reject a voltage applied simultaneously to both
differential–input terminals.
Companding
— The process in which dynamic range compression of a signal is followed by expansion in accordance with
a given transfer characteristic (companding law) which is usually logarithmic.
Compander
— A combination of a compressor at one point in a communication path for reducing the amplitude range of signals,
followed by an expander at another point for restoring the original amplitude range, usually to improve the signal–to–noise ratio.
Conference Call
— A call between three or more stations, in which each station can carry on a conversation simultaneously.
CPE
— Customer Premise Equipment; this could be a POTS phone, answering machine, fax machine, or any number of other
devices connected to the PSTN.
Crosspoint
— The operating contacts or other low–impedance–path connection over which conversations can be routed.
Crosstalk
— The undesired transfer of energy from one signal path to another.
CSN
— Circuit Switched Network.
CTS
— Clear to send; a control signal between a modem and a controller used to initiate data transmission over a communication
line.
CVSD
— Continuous Variable Slope Delta (modulation); a simple technique to converting an analog signal (like voice) into a
serial bit stream.
D3
— D3 channel bank; a specific generation of AT&T 24–channel PCM terminal that multiplexes 24 voice channels into a 1.544
MHz digital bit stream. The specifications associated with D3 channel banks are the basis for all PCM device specifications.
D/A
(digital–to–analog) converter (DAC) — A converter that represents a limited number of different digital input codes by a
corresponding number of discrete analog output values.
Data Compression
— A technique that provides for the transmission of fewer data bits than originally required without information
loss. The receiving location expands the received data bits into the original bit sequence.
dB
(decibel) — A power or voltage measurement unit, referred to another power or voltage. It is generally computed as:
10 x log (P1/P2) for power measurements, and
20 x log (V1/V2) for voltage measurements.
dBm
— An indication of signal power. 1.0 mW across 600
, or 0.775 volts rms, is defined as 0 dBm. Any other voltage level
is converted to dBm by:
dBm = 20 x log (Vrms/0.775), or
dBm = [20 x log (Vrms)] + 2.22.
dBmO
— Signal power measured at a point in a standard test tone level at the same point.
i.e., dBmO = dBm = dBr
where dBr is the relative transmission level, or level relative to the point in the system defined as the zero transmission level
point.
For More Information On This Product,
Go to: www.freescale.com
F
Freescale Semiconductor, Inc.
n
.
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| MC145574AAC | 功能描述:IC TRANSCEIVER ISDN 32-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| MC145574AACR2 | 功能描述:IC TRANSCEIVER ISDN 32-LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| MC145574ADW | 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| MC145574ADWR2 | 功能描述:IC TRANSCEIVER ISDN 28-SOIC RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) |
| MC145574AEG | 制造商:Freescale Semiconductor 功能描述: |
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