參數(shù)資料
型號(hào)： MC33219ADW
廠商： MOTOROLA INC
元件分類： 無(wú)繩電話/電話
英文描述： VOICE SWITCHED SPEAKERPHONE CIRCUIT
中文描述： SPEAKER PHONE CIRCUIT, PDSO24
封裝： PLASTIC, SOIC-24
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 562K
代理商： MC33219ADW
Order this document by MC33219A/D
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
DW SUFFIX
PLASTIC PACKAGE
CASE 751E
VOICE SWITCHED
SPEAKERPHONE CIRCUIT
PIN CONNECTIONS
ORDERING INFORMATION
MC33219ADW
MC33219AP
TA = – 40
°
to +85
°
C
SOIC
Plastic DIP
24
1
P SUFFIX
PLASTIC PACKAGE
CASE 724
24
1
CP2
1
24
(Top View)
VCC
2
3
4
5
6
7
8
9
10
11
12
23
22
21
20
19
18
17
16
15
14
13
XDI
CPT
TLI
TLO
VB
CT
CD
NC
CPR
RLI
RLO
TAO
TAI
MCO
MCI
VLC
MUTE
RXI
RXO
RAI
RAO
GND
Simplified Block Diagram
This device contains 384 active transistors.
Microphone
Transmit
Out
Mute
Vol
Cont
VB
VB
VB
VB
VB
BNM
Reg.
Rx Attenuator
MC33219A
VCC
Tx Attenuator
Attenuator Control
DTD
Speaker
Amplifier
Speaker
CD
Receive
In
BNM
1
MOTOROLA ANALOG IC DEVICE DATA
The Motorola MC33219A Voice Switched Speakerphone Circuit
incorporates the necessary amplifiers, attenuators, level detectors, and
control algorithm to form the heart of a high quality hands–free
speakerphone system. Included are a microphone amplifier with mute,
transmit and receive attenuators, a background monitoring system for both
the transmit and receive paths, and level detectors for each path. An AGC
system reduces the receive gain on long lines where loop current and power
are in short supply. A dial tone detector prevents fading of dial tone. A Chip
Disable pin permits conserving power when the circuit is not in use. The
volume control can be implemented with a potentiometer.
The MC33219A can be operated from a power supply, or from the
telephone line, requiring typically 3.2 mA. It can be used in conjunction with a
variety of speech networks. Applications include not only speakerphones,
but intercoms and other voice switched devices.
The MC33219A is available in a 24 pin narrow body DIP, and a wide body
SOIC package.
Supply Voltage Range: 2.7 to 6.5 V
Attenuator Range: 53 dB
Background Noise Monitor for Each Path
2 Point Signal Sensing
Volume Control Range: Typically 40 dB
Microphone and Receive Amplifiers Pinned Out for Flexibility
Microphone Amplifier can be Muted
Mute and Chip Disable are Logic Level Inputs
Chip Deselect Pin Powers Down the Entire IC
Ambient Operating Temperature: –40 to +85
°
C
24 Pin Narrow Body (300 mil) DIP and 24 Pin SOIC
Motorola, Inc. 1995
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參數(shù)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
MC33232DR2G 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(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
MC33232P 功能描述:功率因數(shù)校正 IC Critical Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(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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