TLV1012_10 Datasheet, PDF (1/12 Pages) Texas Instruments – AMPLIFIER FOR HIGH-GAIN TWO-WIRE MICROPHONES

TLV1012
www.ti.com .......................................................................................................................................... SLCS154A – OCTOBER 2008 – REVISED NOVEMBER 2008
AMPLIFIER FOR HIGH-GAIN TWO-WIRE MICROPHONES
FEATURES
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• Supply Voltage: 2 V to 5 V
• Supply Current: <180 µA
• Signal-to-Noise Ratio (A-Weighted): 60 dB
• Output Voltage Noise (A-Weighted): −89 dBV
• Total Harmonic Distortion: 0.013%
• Voltage Gain: 15.6 dB
APPLICATIONS
• Cellular Phones
• Headsets
• Mobile Communications
• Automotive Accessories
• PDAs
• Accessory Microphone Products
YDC PACKAGE
(TOP VIEW)
OUTPUT ^{A2 B2} GND
GND ^{A1 B1} INPUT
DESCRIPTION/ORDERING INFORMATION
The TLV1012 is an audio amplifier series for small-form-factor electret microphones. This two-wire amplifier is
designed to replace JFET amplifiers currently in use. The TLV1012 is ideally suited for applications that require
high signal integrity in the presence of ambient or RF noise, such as in cellular communications. The TLV1012
audio amplifier is specified for operation over a 2.2-V to 5-V supply voltage range with a fixed gain of 15.6 dB.
The device offers excellent THD, gain accuracy, and temperature stability compared to JFET microphones.
The TLV1012 enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with
the existing JFET market.
The TLV1012 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 TLV1012 is characterized for operation over a
free-air temperature range of –40°C to 85°C.
T_A
–40°C to 85°C
A_V ⁽²⁾
15.6 dB
ORDERING INFORMATION⁽¹⁾
PACKAGE ⁽³⁾
ORDERABLE PART NUMBER
NanoStar™ WCSP
(DSBGA) – YDC
Reel of 3000
TLV1012-15YDCR
TOP-SIDE MARKING
Y38
(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) Typical value measured at V_DD = 2.2 V, V_IN = 18 mV, R_L = 2.2 kΩ, C_L = 2.2 µF
(3) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
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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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated