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PDF LA2650 Data sheet ( Hoja de datos )
| Número de pieza | LA2650 | |
| Descripción | Bass Boost IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Ordering number : EN5652
Monolithic Linear IC
LA2650
Bass Boost IC
Overview
The LA2650 is a bass boost IC developed for use in mini-
component stereo systems, TV sets, and radio/cassette
player products. The cutoff frequency is determined by
external capacitors, and the boost gain, addition level, and
boost on/off state can be controlled by a microcontroller.
Features
• The bass boost gain is variable over a maximum range
of 20 to 35 dB in 5-dB steps, and the addition level into
the left and right channels can be controlled over a 0 to
–35 dB range in 3-dB and 5-dB steps. This allows an
optimal boost for the source and volume to be acquired
using microprocessor control.
• Includes two AGC circuits on chip: a level limiter (2 V
rms) for the maximum input in low-frequency boost
mode and a non-clipping limiter (i.e. clip prevention)
circuit.
• Can be switched between 2D and 3D systems.
• Left and right channel boost addition on/off
• Bass output pin for use in 3D systems
• Boost on/off
• LED on/off
• 8-bit serial microprocessor interface
Package Dimension
unit: mm
3021B-DIP20
[LA2650]
Functions
• Variable boost gain (20, 25, 30, and 35 dB)
• Boost level limiter, non-clipping limiter
• Variable boost addition level (0, –3, –6, –9, –15, –20,
–25, and –35 dB)
SANYO: DIP20
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
Pd max
Topr
Tstg
Ta ≤ 70°C
Conditions
Ratings
12
450
–25 to +70
–40 to +150
Unit
V
mW
°C
°C
Operating Conditions at Ta = 25°C
Parameter
Recommended supply voltage
Operating voltage range
Symbol
VCC
VCC op
Conditions
Ratings
9
5 to 10
Unit
V
V
Control Data Input Voltage Levels
Parameter
Symbol
Low-level voltage
High-level voltage
VIL
VIH
Note: When VCC is under 5.7 V, the maximum value shall be VCC – 0.2 V.
Conditions
Ratings
0 to 1.5
3.5 to *5.5
Unit
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
43097HA(OT) No. 5652-1/13
1 page  
Sample Application Circuit
LA2650
5 to 10 V
DECODER
No. 5652-5/13
5 Page 
LA2650
Supply voltage, VCC, – V
Input frequency, fi – Hz
Input frequency, fi – Hz
Input frequency, fi – Hz
I/O C = 1 µF
Input voltage, VIN – dBm
Input frequency, fi – Hz
Filter: 80 kHz LPF
Input frequency, fi – Hz
L→R
R → L is identical.
Filter: flat
Input frequency, fi – Hz
No. 5652-11/13
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet LA2650.PDF ] | |
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