LA4485 Ver la hoja de datos (PDF) - SANYO -> Panasonic

Número de pieza

componentes Descripción

Fabricante

LA4485

5 W, Two-channel Power Amplifier with Very Few External Parts

SANYO -> Panasonic 

LA4485

Operating Characteristics at Ta = 25°C, VCC = 13.2 V, RL = 4 Ω, Rg = 600 Ω, f = 1 kHz, Dual

Parameter

Standby current

Quiescent supply current

Voltage gain

Output power

Total harmonic distortion

Channel separation

Output noise voltage

Ripple rejection ratio

Symbol

Ist

ICCO

VG1

VG2

PO1*

PO2

THD

CH sep

VNO

SVRR

*: PO1 = 6 W (typ) when VCC = 14.4 V

Voff ± 250 mV for BTL-mode

Conditions

Pin 9 to GND, Standby switch OFF

Rg = 0

Dual: VO = 0 dBm

BTL: VO = 0 dBm

Dual: THD = 10%

BTL: THD = 10%

PO = 1 W

VO = 0 dBm, Rg = 0

Rg = 0, 20 Hz to 20 kHz bandpass filter

Rg = 0, 20 Hz to 20 kHz bandpass filter,

fR = 100 Hz, VR = 0 dBm, decoupling capacitor

connected

min typ max Unit

10 µA

40

80 160 mA

43

45

47 dB

51

dB

4

5

W

11

15

W

0.15 0.8 %

45

55

dB

0.15 0.5 mV

40

50

dB

Pd max – Ta

Infinite heat sink

Al heat sink

mounting

conditions

Mounting

torque

39 Nvcm.

Flat washer

with silicone

grease

applied

No heat sink

Ambient temperature, Ta – °C

Equivalent Circuit Block Diagram

FILTER

Large signal Small signal

VCC VCC

CH1 IN

Small signal GND

BTL IN

CH2 IN

Filter

Input

amp

CH1

REF

amp

Input

amp

CH2

Pre

drive

amp

Output-to-ground

short-circuit

protection

Output-to-supply

short-circuit

protection

Output

amp

Thermal shutdown

protection

Overvoltage

protection

Pre

drive

amp

Output-to-supply

short-circuit

protection

Output-to-ground

short-circuit

protection

Output

amp

Standby switch

Mute

BTL OUT STANDBY

MUTE

CH1 OUT

Large signal GND

CH2 OUT

No.3680-2/20

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