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參數(shù)資料
| 型號(hào)： | KA8601C |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | SPEAKER PHONE WITH SPEECH NETWORK |
| 中文描述： | 免提電話與語(yǔ)音網(wǎng)絡(luò) |
| 文件頁(yè)數(shù)： | 7/10頁(yè) |
| 文件大?。?/td> | 280K |
| 代理商： | KA8601C |
KA8601C SPEAKER PHONE WITH SPEECH NETWORK
APPLICATION INFORMATION
FUNCTION DESCRIPTION
SPEECH NETWORK
1. MICROPHONE AMPLIFIER
This microphone amplifier is equipped with a fixed gain (30dB). Its basic configuration is shown in figure 3.
Fig .3
This amplifier has a mute function. If a mute signal from the dialer is inputted when the speech network is in the mute
mode, the microphone amplifier will be muted.
2. VOLTAGE REGULATOR (DIALER INTERFERENCE)
This voltage regulator has a minimum output voltage of 3.1 volts. When the dialer is not in motion, its minimum current
is 1.0mA, where as when the dialer is moving the minimum current is 2.2mA.
3. VOLTAGE REFERENCE
Generally when in the voltage reference mode, the microphone's bias voltage is used, but when in the TXl
ATT
mode,
DC bias voltage is used. The output voltage of the voltage reference is a minimum of 1.6 volts.
SPEAKER PHONE
1. MICROPHONE AMPLIFIER
This device amplifies outside microphone signals, which are inputted while in the inverting mode. As it alters elements,
the microphone amplifier allows for them to be modulated. Its open loop
gain is 80dB, while the band width is typically
1.0KHz. It has a mute function, and when operating in the mute mode at least 2.0V, the microphone amplifier gain
is reduced to around 40dB. If the mute mode is not used, it must connected with the ground.
Fig. 4
MICI+
MIC-
20K
20K
MT
MICO
+
-
30dB
MIC
MICO
MT
Ri
Rf
Bias Voltage
+
-
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| KA8602B | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LOW VOLTAGE AUDIO AMPLIFIER |
| KA8602BD | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LOW VOLTAGE AUDIO AMPLIFIER |
| KA8602D | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:LOW VOLTAGE AUDIO AMPLIFIER |
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