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參數資料
| 型號： | UTCMC34018 |
| 廠商： | 友順科技股份有限公司 |
| 英文描述： | VOICE SWITCHED SPEAKER-PHONE CIRCUIT |
| 中文描述： | 交換式音箱語音電話電路 |
| 文件頁數： | 1/14頁 |
| 文件大小： | 194K |
| 代理商： | UTCMC34018 |
UTC MC34018 LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R108-006,A
VOICE SWITCHED
SPEAKER-PHONE CIRCUIT
DESCRIPTION
The UTC MC34018 speaker-phone integrated circuit
incorporates the necessary functions to produce a high
quality hands-free speaker-phone system. The applications
include household and office speaker-phones, intercom
systems, hand free kit for mobile phones, and others.
FEATURES
*All necessary level detection and attenuation controls for a
hand-free telephone included.
*Background noise level monitoring with long time constant.
*Background sound level compensation for transmit and
receive levels as well as the background level.
*Wide operating dynamic range through signal compression.
*On-chip voltage regulators illuminate external regulators for
lining operation.
*Power audio amplifier for typical 100mW output (into 25
ohms)with peak limiting for speaker to minimize distortion.
*Chip Select pin for active/stand by operation.
*Volume control function for external volume control.
*Standard 28-pin plastic DIP and SOP package.
ABSOLUTE MAXIMUM RATINGS
(Ta=25
°
C
,Voltages referred to pin 22
)
PARAMETER
V+ terminal Voltage (pin 16)
DIP-28
SOP-28
VALUE
+12,-1.0
+12,-1.0
UNIT
V
V
CS
(pin 18)
Speaker amplifier Ground(pin 14)
VLC(pin 24)
Storage temperature
+3.0,-1.0
+VCC,-1.0
-65 ~ +150
V
V
°
C
RECOMMENDED OPERATION CONDITIONS
PARAMETER
V+ Terminal Voltage (pin 16)
VALUE
+6.0 to +11
0 to +11
0 to 3.0
0.55VB to VB
0 to 250
0 to 5.0
-10 to +10
-20 to +60
UNIT
V
V
mA
V
mVrms
mVrms
mVdc
°
C
CS
(pin 18)
Icc(pin 20)
VLC(pin 24)
Receive Signal(pin 27)
Microphone Signal(pin 9)
Speaker Amplifier Ground (pin 14)
Ambient Temperature
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