Level Meter Driver for 9 LEDs

Applications

.

AC level meters such as VU meters.

.

DC level meters such as signal meters.

Functions

.

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.

.

Comparator level

Setting is made by steps of 3 dB as follows.

–18 dB, –15 dB, –12 dB, –9 dB, –6 dB, –3 dB, 0 dB,

+3 dB, +6 dB

.

Supply voltage

The recommended 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 Vref2=5 V.

Package Dimensions

unit : mm

3064-DIP16

[LB1409]

SANYO : DIP16

Specifications

Comparator level

Pin No.

min

typ

max

Unit

D1

7

0.11

0.18*

0.25

V

D2

8

0.20

0.27*

0.34

V

D3

9

0.30

0.38*

0.46

V

D4

10

0.45

0.53*

0.61

V

D5

11

0.66

0.75

0.84

V

D6

12

0.97

1.06

1.15

V

D7

13

1.40

1.50

1.60

V

D8

14

2.02

2.12

2.22

V

D9

15

2.90

3.00

3.10

V

*: No overlap occurs in each individual IC.

Ordering number: EN683D

Monolithic Digital IC

LB1409

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

53096HA(II)/8237KI/8205MW/7140KI,TS No.683-1/4