LMV1012-07/ LMV1012-15/ LMV1012-25 Analog Pre-Amplified IC’s for High Gain Microphones General Description Features The LMV1012 is an audio amplifier series for small form factor electret microphones. It 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 7.8dB, 15.6dB and 23.8dB. The devices offer excellent 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 two space saving 4-bump micro SMD™ packages. The LMV1012TP-07, LMV1012TP-15, and LMV1012TP-25 are well suited for canister packages 1.8mm and thicker. The LMV1012UP-15 is ideal for canisters 1.3mm and thicker. These miniature packages are designed for electret condenser microphones (ECM) form factor. (Typical LMV1012-15, 2.2V supply, RL = 2.2kΩ, C = 2.2µF, VIN = 18mVPP, unless otherwise specified) n Supply voltage 2V - 5V < 180µA n Supply current n Signal to noise ratio (A-weighted) 60dB n Output voltage noise (A-weighted) −89dBV n Total Harmonic Distortion 0.09% n Voltage gain — LMV1012-07 7.8dB — LMV1012-15 15.6dB — LMV1012-25 23.8dB n Temperature range −40˚C to 85˚C n Offered in 4-bump micro SMD packages: — 0.93 x 1.0 x 0.4mm — 0.93 x 1.0 x 0.5mm Schematic Diagram Built-In Gain Electret Microphone Applications n n n n n n Cellular phones Headsets Mobile communications Automotive accessories PDAs Accessory microphone products 20072302 20072301 © 2003 National Semiconductor Corporation DS200723 www.national.com LMV1012-07/ LMV1012-15/ LMV1012-25 Analog Amplifier IC for High Gain Microphones May 2003 LMV1012-07/ LMV1012-15/ LMV1012-25 Physical Dimensions inches (millimeters) unless otherwise noted NOTE: UNLESS OTHERWISE SPECIFIED. 1. EPOXY COATING. 2. 63Sn/37Pb EUTECTIC BUMP. 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION PINS ARE NUMBERED COUNTERCLOCKWISE. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211. VARIATION BC. 4-Bump Thin micro SMD NS Package Number TPA04GKA X1 = 0.93mm X2 = 1.006mm X3 = 0.500mm www.national.com 2 inches (millimeters) unless otherwise noted (Continued) NOTE: UNLESS OTHERWISE SPECIFIED. 1. TITANIUM COATING. 2. FOR SOLDER BUMP COMPOSITION, SEE "SOLDER INFORMATION" IN THE PACKAGING SECTION OF THE NATIONAL SEMICONDUCTOR WEB PAGE (www.national.com). 3. RECOMMEND NON-SOLDER MASK DEFINED LANDING PAD. 4. PIN A1 IS ESTABLISHED BY LOWER LEFT CORNER WITH RESPECT TO TEXT ORIENTATION. 5. XXX IN DRAWING NUMBER REPRESENTS PACKAGE SIZE VARIATION WHERE X1 IS PACKAGE WIDTH, X2 IS PACKAGE LENGTH AND X3 IS PACKAGE HEIGHT. 6. REFERENCE JEDEC REGISTRATION MO-211. VARIATION CA. 4-Bump ULTRA-Thin micro SMD NS Package Number UPA04GKA X1 = 0.93mm X2 = 1.006mm X3 = 0.400mm LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Americas Customer Support Center Email: [email protected] Tel: 1-800-272-9959 www.national.com National Semiconductor Europe Customer Support Center Fax: +49 (0) 180-530 85 86 Email: [email protected] Deutsch Tel: +49 (0) 69 9508 6208 English Tel: +44 (0) 870 24 0 2171 Français Tel: +33 (0) 1 41 91 8790 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Asia Pacific Customer Support Center Email: [email protected] National Semiconductor Japan Customer Support Center Fax: 81-3-5639-7507 Email: [email protected] Tel: 81-3-5639-7560 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. LMV1012-07/ LMV1012-15/ LMV1012-25 Analog Amplifier IC for High Gain Microphones Physical Dimensions