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TLV1018 データシート(PDF) 1 Page - Texas Instruments

部品番号 TLV1018
部品情報  AMPLIFIER FOR THREE-WIRE ANALOG ELECTRET MICROPHONES
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メーカー  TI [Texas Instruments]
ホームページ  http://www.ti.com
Logo TI - Texas Instruments

TLV1018 データシート(HTML) 1 Page - Texas Instruments

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1
FEATURES
APPLICATIONS
V
CC
OUTPUT
INPUT
GND
YDC PACKAGE
(TOP VIEW)
B2
A1
A2
B1
DESCRIPTION/ORDERING INFORMATION
TLV1018
www.ti.com .......................................................................................................................................... SLVS664A – OCTOBER 2008 – REVISED NOVEMBER 2008
AMPLIFIER FOR THREE-WIRE ANALOG ELECTRET MICROPHONES
• Mobile Communications, Bluetooth
2
• Output Voltage Noise (A Weighted):
–89 dBV (Typ)
• Automotive Accessories
• Cellular Phones
• Low Supply Current: 70 µA (Typ)
• PDAs
• Wide Supply Voltage Range: 1.7 V to 5 V
• Accessory Microphone Products
• PSRR: 70 dB (Typ)
• Signal-to-Noise Ratio: 61 dB (Typ)
• Input Capacitance: 2 pF (Typ)
• Input Impedance: >100 MΩ (Typ)
• Output Impedance: <100 Ω (Typ)
• Maximum Input Signal: 170 mV
PP (Typ)
The TLV1018 is an audio amplifier for small-form-factor electret microphones and is designed to replace the
currently implemented JFET preamplifiers. The TLV1018 is ideal for extended battery-life applications, such as a
Bluetooth™ communication link. The addition of a third pin to an electret microphone that incorporates a
TLV1018 allows for a dramatic reduction in supply current compared to a JFET-equipped electret microphone.
Microphone supply current is reduced to 70
µA, assuring longer battery life.
The TLV1018 is specified for supply voltages from 1.7 V to 5 V and has fixed voltage gains of 15 dB and 25 dB.
It offers low output impedance over the voice bandwidth, excellent power supply rejection (PSRR), and stability
over temperature.
The TLV1018 is offered in a space-saving four-terminal ultra-thin lead-free package (YDC) and is ideally suited
for the form factor of miniature electret microphone packages. The TLV1018 is characterized for operation over a
free-air temperature range of –40°C to 85°C.
ORDERING INFORMATION(1)
TA
AV
PACKAGE(2)
ORDERABLE PART NUMBER
TOP-SIDE MARKING
15 dB
TLV1018-15YDCR
Y28
NanoStar™ WCSP
–40°C to 85°C
Reel of 3000
(DSBGA) – YDC
25 dB
TLV1018-25YDCR
YW8
(1)
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2)
Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
Bluetooth is a trademark of Bluetooth SIG.
PRODUCTION DATA information is current as of publication date.
Copyright © 2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.


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