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U4082B PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U4082B
기능 VOICE SWITCHED SPEAKER-PHONE CIRCUIT
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U4082B 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
U4082B
LINEAR INTEGRATED CIRCUIT
VOICE SWITCHED
SPEAKER-PHONE CIRCUIT
„ DESCRIPTION
As a voice switched speaker-phone integrated circuit, the UTC
U4082B includes the necessary amplifiers, attenuators, level
detectors and control algorithm.
To form the UTC U4082B’s internal circuit, there is an internal
microphone amplifier with adjustable gain and mute control, internal
transmit and Receive attenuators (operate in a complementary
manner), level detectors at both input and output of both attenuators,
and background noise monitors for both the transmit and receive
channels.
The dial tone can be pretended from being attenuated by the
receive background noise monitor circuit by a dial tone detector.
There are also two line driver amplifiers which can be used to form a
hybrid network in conjunction with an external coupling transformer. A
high-pass filter can be used for other filtering functions, and especially
to filter out 60Hz noise in the receive channel.
The UTC U4082B which requiring typically 5mA may be operated
from a power supply, or it can be powered from the telephone line.
„ FEATURES
* Attenuator gain range: 52dB (between Transmit and Receive)
* For line-powered applications : 3~6.5V low voltage operation
* For improved sensitivity :4-point signal sensing
* For Transmit and Receive paths: background noise monitors
* External resistors set microphone amplifier gain
* Mute function included
* Chip disable: active or standby operation
* During dial tone presence: dial tone detector to inhibit receive idle
mode
„ ORDERING INFORMATION
Ordering Number
Lead Free Plating
Halogen Free
U4082BL-D28-T
U4082BG-D28-T
U4082BL-S28-T
U4082BG-S28-T
U4082BL-S28-R
U4082BG-S28-R
Package
DIP-28
SOP-28
SOP-28
DIP-28
SOP-28
Packing
Tube
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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U4082B pdf, 반도체, 판매, 대치품
UNISONIC TECHNOLOGIES CO., LTD
U4082B
LINEAR INTEGRATED CIRCUIT
„ ABSOLUTE MAXIMUM RATING (TA=25°С, unless otherwise specified. Voltages referred to pin 22)
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-1~7
V
Voltage at Pin 3
V3
-1~VCC+1
V
Voltage at Pin 12 ( mute)
V12
-1~VCC +1
V
Voltage at Pin 13 ( VLC)
V13
-1~VCC+0.5
V
Voltage at Pin 9, Pin 21, and Pin 2
V9, 21, 2
-0.5~ VCC+0.5
V
Storage Temperature
TSTR
-65~+150
°С
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„ RECOMMENDED OPERATION CONDITIONS
PARAMETER
Supply Voltage
Voltage at Pin 3
Voltage at Pin 12 ( MUTE)
Voltage at Pin 13 ( VLC)
IVB Current ( Pin 15)
Attenuator Input Signal Voltage at Pin 9, Pin 21
RXO, TXO(Pin8, Pin 22)
Load Current
MCO(Pin 10)
HTO-, HTO+(Pin 6, Pin5)
Ambient Operating Temperature
SYMBOL
V4
V3
V12
V13
IVB
V9, V21
TOPR
RATINGS
3.5~6.5
0~ VCC
0~ VCC
0.3×VB~VB
500
350
0~+-2
0~+-1
0~+-0.5
-20~+60
UNIT
V
V
V
V
µA
mVrms
mA
mA
mA
°С
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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U4082B 전자부품, 판매, 대치품
UNISONIC TECHNOLOGIES CO., LTD
U4082B
LINEAR INTEGRATED CIRCUIT
„ TEMPERATURE PARAMETERS
PARAMETER
VCC Supply Current(CD=0.8V)
VCC Supply Current(CD=2V)
VB Output Voltage (VCC =5V)
Attenuator Gain (Max Gain)
Attenuator Gain (Max Attenuation)
Attenuator Input resistance
Dial Tone Detector Threshold
CT Source, Sink Current
Microphone, Hybrid Amplifier Offset
Transmit-Receive Switching Threshold
Sink Current at RLO1, RLO2, TLO1, TLO2
Closed Loop Gain( HTO- to HTO+)
TYP RATINGS (TA=25°С)
5mA
400µA
2.1V
6
-46dB
10k
15mV
±60µA
0mV
1
4µA
0dB
TYP CHANGE
-0.3
-0.4
+0.8
0.0008
0.004
0.6
20
-0.15
±4
±0.02
-10
0.001
UNIT
%/°С
%/°С
%/°С
dB/°С
dB/°С
%/°С
µV/°С
%/°С
µV/°С
%/°С
nA/°С
%/°С
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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부품번호상세설명 및 기능제조사
U4082B

VOICE SWITCHED SPEAKER-PHONE CIRCUIT

Unisonic Technologies
Unisonic Technologies

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