| FLYiNG 零件編號 | ICMC34118G2S28RW0UTC |
| FLYiNG 庫存現貨 | 10,000 |
| 製造商 | UTC |
| 製造商零件編號 | MC34118G-S28-R |
| 說明 | MC34118G-S28-R W0 SOP-28 UTC |
| 無鉛狀態 / RoHS 指令狀態 | RoHS / Halogen Free |
| 封裝／外殼 | SOP-28 |
| 標準包裝數量 | 1000/Reel |
文件:MC34118 UTC.png)
無衝突金屬聲明書
MC34118 LINEAR INTEGRATED CIRCUIT
VOICE SWITCHED SPEAKER-PHONE CIRCUIT
DESCRIPTION
As a voice switched speaker-phone integrated circuit, the UTC MC34118 includes the necessary amplifiers, attenuators, level detectors and control algorithm.
To form the UTC MC34118’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 MC34118 which requiring typically 5mA may be operated from a power supply, or it can be powered from the telephone line.
FEATURES
MC34118 線性集成電路
語音開關免提電話電路
描述
作為一款語音開關免提電話集成電路，UTC MC34118 包含了必要的放大器、衰減器、電平檢測器和控制算法。UTC MC34118 的內部電路包括一個具有可調增益和靜音控制的內置麥克風放大器、以互補方式運作的內置發送和接收衰減器、在這兩個衰減器的輸入和輸出處設置的電平檢測器，以及發送和接收通道的背景噪聲監測器。撥號音檢測器可以防止撥號音被接收背景噪聲監測器衰減。還有兩個線驅動放大器，可以與外部耦合變壓器結合形成混合網絡。高通濾波器可以用於其他濾波功能，特別是濾除接收通道中的60Hz噪聲。UTC MC34118 通常需要5mA電流，可以由電源供電，也可以由電話線供電。
特點
無衝突金屬聲明書
MC34118 LINEAR INTEGRATED CIRCUIT
VOICE SWITCHED SPEAKER-PHONE CIRCUIT
DESCRIPTION
As a voice switched speaker-phone integrated circuit, the UTC MC34118 includes the necessary amplifiers, attenuators, level detectors and control algorithm.
To form the UTC MC34118’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 MC34118 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
MC34118 線性集成電路
語音開關免提電話電路
描述
作為一款語音開關免提電話集成電路，UTC MC34118 包含了必要的放大器、衰減器、電平檢測器和控制算法。UTC MC34118 的內部電路包括一個具有可調增益和靜音控制的內置麥克風放大器、以互補方式運作的內置發送和接收衰減器、在這兩個衰減器的輸入和輸出處設置的電平檢測器，以及發送和接收通道的背景噪聲監測器。撥號音檢測器可以防止撥號音被接收背景噪聲監測器衰減。還有兩個線驅動放大器，可以與外部耦合變壓器結合形成混合網絡。高通濾波器可以用於其他濾波功能，特別是濾除接收通道中的60Hz噪聲。UTC MC34118 通常需要5mA電流，可以由電源供電，也可以由電話線供電。
特點
- 衰減器增益範圍：52dB（發送和接收之間）
- 適用於線路供電應用：3~6.5V 低電壓操作
- 為了提高靈敏度：4點信號檢測
- 發送和接收路徑的背景噪聲監測器
- 外部電阻設置麥克風放大器增益
- 包含靜音功能
- 晶片禁用：活動或待機操作
- 當撥號音存在時：撥號音檢測器可禁止接收閒置模式
