数据搜索系统,热门电子元器件搜索
  Chinese▼

Delete All
ON OFF
ALLDATASHEETCN.COM

X  

预览 PDF Download HTML

SL34118 Datasheet(数据表) 1 Page - System Logic Semiconductor

部件型号  SL34118
说明  Voice Switched Speakerphone Circuit
下载  12 Pages
Scroll/Zoom Zoom In 100% Zoom Out
制造商  SLS [System Logic Semiconductor]
网页  http://www.slsemicon.co.kr/e_index.htm
标志 

SL34118 Datasheet(HTML) 1 Page - System Logic Semiconductor

 
Zoom Inzoom in Zoom Outzoom out
 1 page
background image
SL34118
System Logic
Semiconductor
SLS
Voice Switched Speakerphone Circuit
The SL34118 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 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 included are 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 60 Hz noise in
the reseive channel, or for other filtering functions. A Chip Disable pin
permits powering down the entire circuit to conserve power on long
loops where loop current is at a minimum.
The SL34118 may be operated from a power supply, or it can be
powered from the telephone line, requiring typically 5.0 mA. The
SL34118 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
featurephone.
• Improved Attenuator Gain Range: 52 dB Between Transmit and
Receive
• Low Voltage Operation for Line-Powered Applications (3.0-6.5 V)
• 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 Deined Function
• Dial Tone Detector to Inhibit Receive Idle Mode During Dial Tone
Presence
ORDERING INFORMATION
SL34118N Plastic
SL34118D SOIC
TA = -25
° to 70° C for all packages
PIN ASSIGNMENT




HTML 页

1  2  3  4  5  6  7  8  9  10  11  12 


数据表 下载




链接网址


Privacy Policy
ALLDATASHEETCN.COM
ALLDATASHEET是否为您带来帮助?  [ DONATE ]  

关于 Alldatasheet    |   广告服务   |   联系我们   |   隐私政策   |   书签   |   链接交换   |   制造商名单
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl