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LB1412 - Level Meter Driver for 12 LEDs

General Description

of constants of each block 2-1 R3, R4 (R11, R12) The gain of amp 1 depends on R3, R4.

Gain of amp 1 = R3/R4 times.

The gain of amp 1 must not exceed 4 times (12 dB).

Key Features

  • Package Dimensions unit : mm . Bar-shaped display of input level by means of 12 LEDs . High-order 5 dots with peak hold . Built-in oscillator for peak hold reset. Requires 1 pce. each . . . . . of external C, R. Uses either oscillator at the time of stereo operation. Capable of also resetting manually. Capable of constant-current driving low-order 7 dots (green LED). Constant-current value variable with an external resistor Lower current drain available by connecting green LEDs in series Built.

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LB1412M Level Meter for 12 LEDs
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LB1411 Level Meter
LB1413N 5-Dot Red/Green LED Level Meter
LB1415 Level Meter

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Ordering number: EN1218C Monolithic Digital IC LB1412 Level Meter Driver for 12 LEDs Functions and Features Package Dimensions unit : mm . Bar-shaped display of input level by means of 12 LEDs . High-order 5 dots with peak hold . Built-in oscillator for peak hold reset. Requires 1 pce. each . . . . . of external C, R. Uses either oscillator at the time of stereo operation. Capable of also resetting manually. Capable of constant-current driving low-order 7 dots (green LED). Constant-current value variable with an external resistor Lower current drain available by connecting green LEDs in series Built-in input amplifier Requires no other light-up level adjustment than adjustment for 0 dB.