LMV1032-06 Datasheet | National Semiconductor

Description The LMV1032 is an audio amplifier series for small form factor electret microphones. It is designed to replace the JFET preamp currently being used. The LMV1032 series is ideal for extended battery life applications, such as a bluetooth munication link. The addition of a third pin in electret microphones that incorporate the LMV1032 allows for a dramatic reduction in supply current as pared to the JFET equipped electret microphone. Microphone supply current is thus reduced to 60 µA, assuring longer battery life. The LMV1032 series is guaranteed for supply voltages from 1.7V to 5V, and has fixed voltage gains of 6 d B, 15 d B and 25 d B. The LMV1032 series offers low output impedance over the voice bandwidth, excellent power supply rejection (PSRR), and stability over temperature. The devices are offered in space saving 4-bump ultra thin micro SMD (TM) lead free package and are thus ideally suited for the form factor of miniature electret microphone packages. Features (Typical LMV1032-06, 1.7V Supply; Unless Otherwise Noted) n Output voltage noise (A-weighted) - 97 d BV n Low supply current 60 µA n Supply voltage 1.7V to 5V n PSRR 84 d B n Signal to noise ratio 58 d B n Input capacitance 2 p F > 100 MΩ n Input impedance < 200Ω n Output impedance n Max input signal 300 m VPP n Temperature range - 40˚C to 85˚C n Offered in 1.13 x 1.13 x 0.4mm Ultra Thin micro SMD lead free (NOPB) package Applications n n n n n Mobile munications - Bluetooth Automotive accessories Cellular phones PDAs Accessory microphone products Block Diagram Electret Microphone 20084202 20084201 © 2004 National Semiconductor Corporation DS200842 .national. LMV1032-06/LMV1032-15/LMV1032-25 Absolute Maximum Ratings (Note 1) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. ESD Tolerance (Note 2) Human Body Model Machine Model Supply Voltage VDD - GND 5.5V 2500V 250V Storage...