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參數(shù)資料
| 型號(hào)： | LMV1012TPX-25 |
| 廠(chǎng)商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | Pre-Amplified IC’s for High Gain 2-Wire Microphones |
| 中文描述： | 1 CHANNEL, AUDIO PREAMPLIFIER, PBGA4 |
| 封裝： | 0.50 MM HEIGHT, MO-211BC, MICRO, SMD-4 |
| 文件頁(yè)數(shù)： | 1/15頁(yè) |
| 文件大?。?/td> | 497K |
| 代理商： | LMV1012TPX-25 |
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LMV1012 Analog Series:
Pre-Amplified IC’s for High Gain 2-Wire Microphones
General Description
The LMV1012 is an audio amplifier series for small form
factor electret microphones. This 2-wire portfolio is designed
to replace the JFET amplifier currently being used. The
LMV1012 series is ideally suited for applications requiring
high signal integrity in the presence of ambient or RF noise,
such as in cellular communications. The LMV1012 audio
amplifiers are guaranteed to operate over a 2.2V to 5.0V
supply voltage range with fixed gains of 7.8 dB, 15.6 dB,
20.9 dB, and 23.8 dB. The devices offer excellent THD, gain
accuracy and temperature stability as compared to a JFET
microphone.
The LMV1012 series enables a two-pin electret microphone
solution, which provides direct pin-to-pin compatibility with
the existing JFET market.
The devices are offered in extremely thin space saving
4-bump micro SMD packages. The LMV1012XP is designed
for 1.0 mm canisters and thicker ECM canisters. These
extremely miniature packages are designed for electret con-
denser microphones (ECM) form factor.
Features
(Typical LMV1012-15, 2.2V supply, R
= 2.2 k
, C = 2.2 μF,
V
IN
= 18 mV
PP
, unless otherwise specified)
n
Supply voltage
n
Supply current
n
Signal to noise ratio (A-weighted)
n
Output voltage noise (A-weighted)
n
Total harmonic distortion
n
Voltage gain
— LMV1012-07
— LMV1012-15
— LMV1012-20
— LMV1012-25
n
Temperature range
n
Offered in 4-bump micro SMD packages
2V - 5V
<
180 μA
60 dB
89 dBV
0.09%
7.8 dB
15.6 dB
20.9 dB
23.8 dB
40C to 85C
Applications
n
Cellular phones
n
Headsets
n
Mobile communications
n
Automotive accessories
n
PDAs
n
Accessory microphone products
Schematic Diagram
20058701
Built-In Gain Electret Microphone
20058702
August 2004
L
2004 National Semiconductor Corporation
DS200587
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LMV1012XPX-15 | Pre-Amplified IC’s for High Gain 2-Wire Microphones |
| LMV1012XPX-25 | Pre-Amplified IC’s for High Gain 2-Wire Microphones |
| LMV1012UP-07 | Pre-Amplified IC’s for High Gain 2-Wire Microphones |
| LMV1012UP-15 | Reed Relay; Contacts:SPST; Contact Carry Current:1.5A; Coil Voltage DC Max:5V; Relay Terminals:Thru Hole; Switching Current Max:0.5A; Switching Voltage Max:200V; Contact Carrying Power:10W; Leaded Process Compatible:Yes RoHS Compliant: Yes |
| LMV1012UP-20 | Pre-Amplified IC’s for High Gain 2-Wire Microphones |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LMV1012TPX-25/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LMV1012UP-07 | 制造商:Texas Instruments 功能描述:Audio Amp Microphone 1-CH Mono Class-AB 4-Pin Micro SMD T/R 制造商:Texas Instruments 功能描述:IC MICROPHONE AMP 7.8DB GAIN 1012 |
| LMV1012UP-07/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| LMV1012UP-15 | 制造商:Texas Instruments 功能描述:Audio Amp Microphone 1-CH Mono Class-AB 4-Pin uSMD T/R |
| LMV1012UP-15/NOPB | 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
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