NTE NTE1514, NTE1515 Datasheet
NTE1514 and NTE1515
Integrated Circuit
5–Step LED Driver for Logarithmic Scale
Features:
D Useful for Both AC and DC Level Meter as VU Meter or Signal Meter
D Wide Supply Voltage Ramge: VCC = 4.4V to 12V
D DC Amplifier Included
Comparator Level: (TA = +25°C, VCC = 6V, I
Level Pin Test Conditions
D5 14 V
D4 13 V
D3 12 V
D2 11 V
D1 10 V
= 2.6V to 3V, V
R02
= 2.6V to 3V, V
R02
= 2.6V to 3V, V
R02
= 2.6V to 3V, V
R02
= 2.6V to 3V, V
R02
= 0V 5.5 6.0 6.5 1.6 2.0 2.4 dB
R02
= 0V 2.5 3.0 3.5 –0.4 0 +0.4 dB
R02
= 0V –0.5 0 0.5 –3.6 –3.0 –2.4 dB
R02
= 0V –6.0 –5.0 –4.0 –8.0 –7.0 –6.0 dB
R02
= 0V –12 –10 –8.0 –17 –15 –13 dB
R02
= 5mA)
ref
NTE1514 NTE1515
Min Typ Max Min Typ Max
Note 1. Definition of 0dB: when voltage of OUT2 is 2.37V (R02 = 3V, R01 = 0V).
when voltage of OUT2 is 1.50V (R02 = 3V, R01 = 0V).
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Maximum Supply Voltage (Pin4), VCCmax –0.3V to +14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input Voltage (Pin2, Pin3), V
Current at Pin C (Pin1), I
C
IN
–0.3V to +14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0.1mA to 2mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage,
Pin16 (Note 2), V
Pin15, V
OUT(2)
Pin10 to Pin14, V
OUT(1)
OUT
Reference Current (Pin6), I
ref
–0.3V to +12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.3V to +12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.3V to 14V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
0 to 10mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Allowable Power Dissipation (TA = +55°C, Total), Pdmax 500mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
Storage Temperature Range, T
stg
opr
–10° to +60°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–40° to +125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit
Note 2. When OUT1 is off and OUT2 is connected to GND (Pin8) through 12kΩ.
Note 3. Notice inhibit to supply any voltage to input and output pin larger than VCC+0.3V (Especially
beware of power switch on). Pin D1 to D5 should be connected to VCC at no use of LED’s.
Allowable Operating Condition: (TA = +25°C unless otherwise specified)
Supply Voltage (Pin4), V
Reference Current (Pin6), I
Load Resistance (Pin15, inserted between OUT2 and GND), R
CC
ref
L2
4.4 to 12V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.5 to 9.0mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
15 to 20kΩ. . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (TA = +25°C, VCC = 4.4V to 12V, I
= 5mA unless otherwise specified)
ref
Parameter Symbol Pin Test Conditions Min Typ Max Unit
Input Bias Current
IIN+(A) 2 VCC = 12V, VIN+ = 10V, VIN– = 0V –2 – 0 µA
(Amp Section)
IIN–(A) 3 VCC = 12V, VIN+ = 0V, VIN– = 10V –2 – 0 µA
Input Bias Current
(Comparator Section)
Reference Voltage V
Amp Offset Voltage
IIN+(C) 5, 7 VCC = 12V, VIN+ = 10V, VIN– = 0V,
V
R01
= 0V, V
R02
= 0V
IIN–(C) 15 VCC = 12V, VIN+ = 0V, VIN– = 10V,
V
V
ref
offset
= V
R01
6 I
= 2.5mA to 9.0mA 2.6 – 3.0 V
ref
15 Amp Gain 20dB –500 – +500 mV
R02
= V
ref
, V
OUT2
= 0V
–10 – 0 µA
–10 – 0 µA
(Amp Section)
Output Flow–in Current I
OL(1)
16 OUT1: V
= 0.5V, VIN+ = 0V,
OUT1
0.2 – – mA
VIN– = 4V
Output Flow–out Current I
OH(1)
16 OUT1: V
= 3.7V, VIN+ = 4V,
OUT1
– – –20 µA
VIN– = 0V
I
I
Output Flow–in Current I
Output Leak Current I
Current Dissipation I
OH(2)
OH(2)
OL(D)
OH(D)
CC
15 OUT2: VCC = 4.4V, V
15 OUT2: VCC = 12V, V
10 to 14 D1 to D5: VCC = 4.4V, VD1 to VD5 = 2.3V,
VIN– = 0V, VIN+ = 3V, V
D1 to D5: VCC = 12V, VD1 to VD5 = 9.7V,
VIN– = 0V, VIN+ = 9V, V
10 to 14 D1 to D5: VCC = 12V, VIN+ = 0V,
VIN– = 9V, V
R02
= 9V
= 0V – – –3.1 mA
OUT2
= 0V – – –7.0 mA
OUT2
3.0 – 7.5 mA
= 3V
R02
3.0 – 7.5 mA
= 9V
R02
– – 50 µA
4 VCC = 12V, VIN+ = 0V, VIN– = 10V – 8 15 mA
Amp Gain VG Open Looped 30 – – dB
+3dB 0dB –10dB
Input Level
Capacitor
Input (–)
Input (+)
V
CC
R
O2
V
R
O1
Pin Connection DiagramVU Level Meter
1
2
3
4
‘
5
6
ref
7
8GND 9 N.C.
16
Output (1)
15
Output (2)
14
LED5
13
LED4
12 LED3
11 LED2
10 LED1
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