LB1409
Ordering number: EN683D
Monolithic Digital IC
LB1409 Level Meter Driver for 9 LEDs
Applications
Package Dimensions unit : mm
. AC level meters such as VU meters. . DC level meters such as signal meters.
Functions
3064-DIP16
[LB1409]
. Display
Nine red or green LEDs display the input level in the shape of a bar.
. Input amplifier
Wide application is available owing to built-in DC amplifier whose gain is variable with external resistors.
. parator level
Setting is made by steps of 3 d B as follows.
- 18 d B,
- 15 d B,
- 12 d B,
- 9 d B,
- 6 d B,
- 3 d B, 0 d B, +3 d B, +6 d B SANYO : DIP16
. Supply voltage
The remended supply voltage range is so wide as 5.5 V to 16 V. (If pin Vref 2 is used, 7 V to 16 V.)
. Reference voltage
Constant voltage output is available with external transistor owing to pin Vref 2 = 5 V.
Specifications parator Level OUT Pin Voltage at Ta = 25°C, VCC = 12 V, Vref 1 = 3 V parator level D1 D2 D3 D4 D5 D6 D7 D8 D9 Pin No. 7 8 9 10 11 12 13 14 15 min 0.11 0.20 0.30 0.45...
