NTE1561
Integrated Circuit
5 LED VU Level Meter
Description:
The NTE1561 is a monolithic integrated circuit in a 9鈥揕ead SIP type package designed for use as a
5 dot LED level meter driver. With a built鈥搃n rectifying amplifier, this device is suitable for AC/DC level
meter applications such as VU meters or signal meters.
Features:
D
Built鈥揑n High Gain Rectifying Amplifier (A
v
= 26dB)
D
Low Radiation Noise when LED Turns On
D
Logarithmic Indicator for Bar Type 5 Dot LED (鈥?0, 鈥?, 0, +3, +6dB)
D
Constant Current Output: I
O
= 15mA Typ
D
Wide Operating Supply Voltage Range: 3.5V to 16V
D
Minimum Number of External Components Required
Absolute Maximum Ratings:
(T
A
= +25擄C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Amp Input Voltage, V
8鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5 to V
CC
Pin7 Voltage, V
7鈥?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
D Terminal Output Voltage, V
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Circuit Current, I
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12mA
D Terminal Output Current, I
D
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
Power Dissipation, P
d
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100mW
Derate Above 25擄C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11mW/擄C
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +80擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Electrical Characteristics:
(T
A
= +25擄C, V
CC
= 6V, f = 1kHz unless otherwise specified)
Parameter
Circuit Current
D Output Current
Input Bias Current
Amp Gain
Comparator ON Level
Symbol
I
CC
I
O
I
B
A
v
GD
1
GD
2
GD
3
GD
4
GD
5
Note 1
V
i
= 0.1V
V
i
= 0V
V
i
= 0.15V
Test Conditions
Min
鈥?/div>
11.0
鈥?
24
鈥?2
鈥?
鈥?/div>
2.5
5.0
Typ
6.0
鈥?/div>
26
鈥?0
鈥?
0
3.0
6.0
Max
8.5
0
28
鈥?
鈥?
鈥?/div>
3.5
7.0
Unit
mA
mA
碌A(chǔ)
dB
dB
dB
dB
dB
dB
15.0 18.5
Note 1. Definition of 0dB: Input voltage level when GD
3
turn ON (50mV).
1
2
