SANYO LB1412M Datasheet
Ordering number: EN1593B
Monolithic Digital IC
LB1412M
Level Meter for 12 LEDs
Functions and Features
.
Bar-shaped display of input level by means of 12 LEDs.
.
High-order 5 dots with peak hold.
.
Built-in oscillator for peak hold reset. Requires 1pce each of
external C, R. Uses either oscillator at the time of stereo
operation. Also capable of resetting manually.
.
Capable of constant-current driving low-order 7 dots (green
LED). Constant-current value variable with an external
resistor.
.
Lower current drain available by connecting green LEDs in
series.
.
Built-in input amplifier.
.
Requires no other light-up level adjustment than adjustment
for 0 dB. D1 error: Within ±3dBof20dB
.
Supply voltage range: 10 to 16 V
Package Dimensions
unit : mm
3045B-MFP24
[LB1412M]
SANYO : MFP24
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Output current I
Allowable power dissipation Pd max Ta = 60°C 380 mW
Operating temperature Topr –30 to +75 °C
Storage temperature Tstg –40 to +125 °C
max Pin 16 –0.3 to+18 V
CC
OL
Pins 2 to 6: D8 to D12, output on 30 mA
Allowable Operating Range at Ta = 25°C
Parameter Symbol Conditions Ratings Unit
Supply voltage V
CC
10 to 16 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
53096HA(II)/9087KI/9134KI,TS No.1593-1/5
LB1412M
Electrical Characteristics at Ta = 25°C, VCC=12V
Parameter Symbol Pin No. Conditions min typ max Unit
Input bias current Amp (1) I
Output saturation
voltage
Amp (1) V
Amp (1) V
Voltage gain Amp (1) V
Input resistance Amp (2) R
Load resistance Amp (2) R
Output current Amp (2) I
Voltage gain Amp (2) V
Output current I
Output saturation voltage
Output leak current
D8 V
D1 G
D2 G
D3 G
D4 G
Comparator level
D5 G
D6 G
D7 G
D9 G
D10 G
D11 G
D12 G
Reference voltage V
R pin flow-out current I
R pin voltage V
Oscillation frequency f
Current drain I
BIN1
OH01
OL01
GA1
IN2
02
OL02
GA2
OL
V
sat
V
sat
I
off
I
off
THD8
D1
D2
D3
D4
D5
D6
D7
D9
D10
D11
D12
Z
OLR
R
OSC
CC
8 –3 –0.2 0 µA
9 Pins 9, 10 short 10.5 11.2 11.6 V
9 Pins 9, 10 short 1.0 1.5 2.0 V
10 8 12 16 kΩ
11 35 50 65 kΩ
11 3 6 12 mA
17, 21 D1, D5: 3 kΩ across VZand I
18, 19,
20, 22,
D2 to D4, D6 to D7: output
transistor on across V
23
2 to 6 D8 to D12: I
17, 21 D1, D5: output transistor off 0 30 µA
2 to 6 D8 to D12: output transistor off 0 30 µA
D8: Voltage to turn on D8 by
2
applying DC voltage across VZand
IN2
17 D8 light-up level: 0 dB –23 –20 –17 dB
18 D8 light-up level: 0 dB –17 –15 –13 dB
19 D8 light-up level: 0 dB –12 –10 –8 dB
20 D8 light-up level: 0 dB –8 –7 –6 dB
21 D8 light-up level: 0 dB –6 –5 –4 dB
22 D8 light-up level: 0 dB –4 –3 –2 dB
23 D8 light-up level: 0 dB –1.5 –1 –0.5 dB
3 D8 light-up level: 0 dB 0.5 1 1.5 dB
4 D8 light-up level: 0 dB 2 3 4 dB
5 D8 light-up level: 0 dB 4 5 6 dB
6 D8 light-up level: 0 dB 7 8 9 dB
13 3 kΩ across VZand I
12 VR= 0 V, OSC pin open –0.6 –0.3 –0.1 mA
12 OSC pin open 0.4 0.7 0.9 V
14 1 MΩ, 2.2 µF across VCCand V
3kΩacross V
16
outputs off
30 100 dB
1.8 2.0 2.2 times
LED
and I
Z
LED
to D5 = 30 mA 1.5 2.0 V
OLD1
13 17 20 mA
1.0 1.3 V
–0.625 –0.55 –0.465 V
5.6 6.3 6.8 V
1.5 2 2.5 s
915mA
Z
and I
LED
LED
Z
, all D
Allowable power dissipation, Pd max – mW
Pd max – Ta
Ambient temperature, Ta – °C
No.1593-2/5
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