LMV1089RLEVAL National Semiconductor, LMV1089RLEVAL Datasheet - Page 7

• Manufacturer Part Number: LMV1089RLEVAL
• Description: BOARD EVALUATION LMV1089
• Manufacturer: National Semiconductor
• Series: PowerWise®r

Specifications of LMV1089RLEVAL

• Main Purpose: Audio, Microphone Amp
• Embedded: No
• Utilized Ic / Part: LMV1089
• Primary Attributes: Dual Input, Single Output
• Secondary Attributes: Graphical User Interface, I²C Interface
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LMV1089 Control Demo Software
Together with the LMV1089 demo board, there is a software
package available that can assist in evaluation, programming,
and testing of the LMV1089 chip via the I
software is operated via the graphical user interface as shown
in Figure 7. This software provides two groups of functions.
In the top half of the screen there are functions like:
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Enable and Disable the microphone amplifiers
Muting the microphone input amplifiers
Controlling the pre- and post-amplifier gain
A 'DEFAULT' button for resetting the part to its un-
calibrated state
2
C Interface. This
FIGURE 7. Control Demo Software GUI
7
The functions in the bottom half of the screen are mostly used
for manual calibration (Note 3):
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Note 3: Using Manual Calibration is described in more detail in the
application section of the LMV1089 data sheet.
Gain difference compensation (Gain Calibration)
Frequency response difference compensation
(Calibration Pattern Presets)
Button to write the manual calibration date (Program
Calibration)
Button to read the calibration date (Read coefficiens)
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