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參數資料
| 型號： | LA2650 |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP20 |
| 封裝： | DIP-20 |
| 文件頁數： | 1/13頁 |
| 文件大小： | 318K |
| 代理商： | LA2650 |
Ordering number : EN5652
43097HA(OT) No. 5652-1/13
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.
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)
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
SANYO: DIP20
[LA2650]
LA2650
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
Bass Boost IC
Monolithic Linear IC
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
VCC max
12
V
Allowable power dissipation
Pd max
Ta
≤ 70°C
450
mW
Operating temperature
Topr
–25 to +70
°C
Storage temperature
Tstg
–40 to +150
°C
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Recommended supply voltage
VCC
9V
Operating voltage range
VCC op
5 to 10
V
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Low-level voltage
VIL
0 to 1.5
V
High-level voltage
VIH
3.5 to *5.5
V
Control Data Input Voltage Levels
Note: When VCC is under 5.7 V, the maximum value shall be VCC – 0.2 V.
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