參數(shù)資料
型號(hào)： MC33215B
廠商： MOTOROLA INC
元件分類(lèi)： 無(wú)繩電話/電話
英文描述： Telephone Line Interface and Speakerphone Circuit
中文描述： TELEPHONE SPEECH CKT, PDIP42
封裝： PLASTIC, SDIP-42
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 456K
代理商： MC33215B
Device
Operating
Temperature Range
Package
ORDERING INFORMATION
MC33215FB
MC33215B
T
A
= –20
°
to +70
°
C
TQFP–52
SDIP–42
B SUFFIX
PLASTIC PACKAGE
CASE 858
(SDIP–42)
Order this document by MC33215/D
FB SUFFIX
PLASTIC PACKAGE
CASE 848B
(TQFP–52)
52 1
42
1
1
The MC33215 is developed for use in fully electronic telephone sets with
speakerphone functions. The circuit performs the ac and dc line termination,
2–4 wire conversion, line length AGC and DTMF transmission. The
speakerphone part includes a half duplex controller with signal and noise
monitoring, base microphone and loudspeaker amplifiers and an efficient
supply. The circuit is designed to operate at low line currents down to 4.0 mA
enabling parallel operation with a classical telephone set.
Highly Integrated Cost Effective Solution
Straightforward AC and DC Parameter Adjustments
Efficient Supply for Loudspeaker Amplifier and Peripherals
Stabilized Supply Point for Handset Microphone
Stabilized Supply Point for Base Microphone
Loudspeaker Amplifier can be Powered and Used Separately
Smooth Switch–Over from Handset to Speakerphone Operation
Adjustable Switching Depth for Handsfree Operation
Simplified Application
This device contains 2782 active transistors.
Attenuator
DTMF
Attenuator
Duplex
Controller
Line
Driver
Current
Splitter
1:10
Handset
Microphone
Base
Microphone
V
CC
or
External Supply
Base Loudspeaker
Auxiliary Input
Handset Earpiece
Receive Signal
Telephone
Line
V
CC
Supply
DC Slope
Line Current
DC Offset
AC
Impedance
R
x
LS
BM
HM
MF
This document contains information on a new product. Specifications and information herein
are subject to change without notice.
Motorola, Inc. 1997
Rev 0
相關(guān)PDF資料
PDF描述
MC33215FB Telephone Line Interface and Speakerphone Circuit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC33215BE 功能描述:電信語(yǔ)音調(diào)制 IC SPEAKERPHONE RoHS:否 制造商:Epson Electronics America 產(chǎn)品: 應(yīng)用:Voice Guidance product 封裝 / 箱體:PQFP-52 電源電壓-最大:3.6 V, 5.5 V 最大工作溫度: 最小工作溫度: 封裝:
MC33218AP 制造商:Rochester Electronics LLC 功能描述: 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC33232D 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
MC33232DG 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
MC33232DR2 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開(kāi)關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel
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