音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

UTCMC34118 Datasheet

  • UTCMC34118

  • VOICE SWITCHED SPEAKER-PHONE CIRCUIT

  • 316.93KB

  • 13頁

  • UTC-IC

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

UTC MC34118 LINEAR INTEGRATED CIRCUIT
VOICE SWITCHED
SPEAKER-PHONE CIRCUIT
DESCRIPTION
The UTC MC34118 voice switched speaker-phone
integrated circuit incorporates the necessary amplifiers,
attenuators, level detectors and control algorithm to form the
heart of a high quality hands-free speaker-phone system. It
includes a microphone amplifier with adjustable gain and
mute control. Transmit and Receive attenuators which
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. A dial
tone detector prevents the dial tone from being attenuated by
the receive background noise monitor circuit. 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 to filter out 60Hz noise in the
receive channel, or for other filtering functions. A chip disable
pin permits powers down the entire circuit to converse power
on long loops where loop current is at a minimum. The UTC
MC34118 may be operated from a power supply, or it can be
powered from the telephone line, requiring typically 5mA. The
UTC MC34118 can be interfaced directly to TIP and
RING( through a coupling transformer) for stand-alone
operation, or it can be used in conjunction with a handset
speech network and/or other features of a feature phone.
SOP-28
DIP-28
FEATURES
*Improved attenuator gain range: 52dB between Transmit
and Receive
*Low voltage operation for line-powered applications(3~6.5V)
*4-point signal sensing for improved sensitivity
*Background noise monitors for both Transmit and Receive
paths
*Microphone amplifier gain set by external
Resistors-Mute function included
*Chip disable for active/standby operation
*On board filter pinned-out for user defined
function
*Dial tone detector to inhibit receive idle mode
during dial tone presence
ABSOLUTE MAXIMUM RATINGS
(Ta=25擄C,Voltages
referred to pin 22)
PARAMETER
Supply Voltage
Voltage at Pin 3
Voltage at Pin 12( mute)
Voltage at Pin 13( VLC)
Voltage at Pin 9, Pin 21, and Pin 2
Storage temperature
SYMBOL
Vcc
V3
V12
V13
V9, 21, 2
Tstr
VALUE
-1~7
-1~Vcc+1
-1~Vcc+1
-1~Vcc+0.5
-0.5~Vcc+0.5
-65~150
UNIT
V
V
V
V
V
擄C
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R108-007,A

UTCMC34118相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！