NTE NTE1561 Datasheet

NTE1561

Integrated Circuit

5 LED VU Level Meter

Description:

The NTE1561 is a monolithic integrated circuit in a 9–Lead SIP type package designed for use as a
5 dot LED level meter driver. With a built–in rectifying amplifier, this device is suitable for AC/DC level
meter applications such as VU meters or signal meters.

Features:

D Built–In High Gain Rectifying Amplifier (Av = 26dB)
D Low Radiation Noise when LED Turns On
D Logarithmic Indicator for Bar Type 5 Dot LED (–10, –5, 0, +3, +6dB)
D Constant Current Output: IO = 15mA Typ
D Wide Operating Supply Voltage Range: 3.5V to 16V
D Minimum Number of External Components Required

Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)

Supply Voltage, VCC 18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Amp Input Voltage, V
Pin7 Voltage, V

7–5

D Terminal Output Voltage, V
Circuit Current, I

CC

D Terminal Output Current, I

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–5

D

D

Power Dissipation, Pd 1100mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derate Above 25°C 11mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

–25° to +80°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

opr

–40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

–0.5 to V

12mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CC

6V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C, VCC = 6V, f = 1kHz unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

Circuit Current I
D Output Current I
Input Bias Current I
Amp Gain A
Comparator ON Level GD

CC

GD
GD
GD
GD

Vi = 0V – 6.0 8.5 mA
Vi = 0.15V 11.0 15.0 18.5 mA

O
B

Vi = 0.1V 24 26 28 dB

v

1
2

Note 1 – 0 – dB

3
4
5

–1 – 0 µA

–12 –10 –8 dB

–6 –5 –4 dB

2.5 3.0 3.5 dB

5.0 6.0 7.0 dB

Note 1. Definition of 0dB: Input voltage level when GD3 turn ON (50mV).

Pin Connection Diagram

(Front View)

9

f

8
7

6
5

4
3 D3
2 D2
1 D1

V

CC

Input
Amp Output

D5
GND

D4

.870 (22.0)

.110 (2.8)

.235
(6.0)

19

.195
(5.0)

.100 (2.54)

.012 (0.30)

.800 (20.32)