MITSUMI
IC for Headphone Stereos LAG673
IC for Headphone Stereos
Monolithic IC LAG673
Outline
This IC was developed for use in 3 V headphone stereos. It incorporates dual preamp, power amp, electronic
volume and motor control circuits; because it requires extremely few external components, it can be used in a
simple circuit configuration.
Features
1. Broad operating voltage range of 2.0 to 5.0 V
2. Few external components required
3. Well-balanced electronic VR, A-curve attenuation characteristic obtained with B-curve VR
4. Internal motor control circuit, with noise from motor driving unit suppressed
5. Fast forward possible using the forced-on pin
Package
SOP-28B (LAG673F)
SDIP-30A (LAG673D)
Absolute Maximum Ratings
Item
Operating temperature
Storage temperature
Power supply current
Operating voltage
Power consumption
Symbol
T
OPR
T
STG
V
CC
Vop
Pd
Ratings
-20~+65
-40~+125
-0.3~+7.5
2.0~5.0
450 (SOP-28B)
750 (SDIP-30A)
Units
擄
C
擄
C
V
V
mW
1
2
3
4
