LB1412 leds equivalent, level meter driver for 12 leds.
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. Requi.
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). R3 + R4 6 100 kΩ (C4 = 4.7 µF) 2-2 C2, C3 (C5, C6) C3 is for coupling amp 1 with amp.
Image gallery
TAGS