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參數(shù)資料
| 型號： | 935263449112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | SPEAKER PHONE CIRCUIT, PDSO40 |
| 封裝： | PLASTIC, SOT-158, VSOP-40 |
| 文件頁數(shù)： | 36/43頁 |
| 文件大?。?/td> | 237K |
| 代理商： | 935263449112 |
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TEA1098
Information as of 2000-08-20
TEA1098; Speech and handsfree IC
The TEA1098 is an analog bipolar circuit dedicated to telephony applications. It includes a line interface, handset (HS) microphone and
earpiece amplifiers, handsfree (HF) microphone and loudspeaker amplifiers and a duplex controller with signal and noise monitors on both
channels.
This IC provides a 3.35 V supply for a microcontroller or dialler and a 2.0 V filtered voltage supply for an electret microphone.
Line interface
l
Low DC line voltage
l
Voltage regulator with adjustable DC voltage
l
Symmetrical high impedance inputs (70 k
) for dynamic, magnetic or electret microphones
l
DTMF input with confidence tone on earphone and/or loudspeaker
l
Receive amplifier for dynamic, magnetic or piezo-electric earpieces (with externally adjustable gain)
l
Automatic Gain Control (AGC) for true line loss compensation.
Supplies
l
Provides a strong 3.35 V regulated supply for microcontrollers or diallers
l
Provides filtered power supply, optimized according to line current
l
Filtered 2.0 V power supply output for electret microphone
l
PD logic input for power-down.
Handsfree
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Description
Features
相關(guān)PDF資料 |
PDF描述 |
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| 935263448557 | SPEAKER PHONE CIRCUIT, PQFP44 |
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| 08-03-0101 | Crimp Socket Contact; Wire Size (AWG):20-18; Contact Material:Phosphor Bronze; Contact Plating:Tin |
| 08-05-0104 | KK 156 Term Crp Edge Card 18 24Awg SGold |
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