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KIA6206F Schematic ( PDF Datasheet ) - KEC

Teilenummer KIA6206F
Beschreibung DUAL HEADPHONE DRIVER
Hersteller KEC
Logo KEC Logo 




Gesamt 9 Seiten
KIA6206F Datasheet, Funktion
K" E C
SEMTEICCHONINCADLUDCATTAOR
KIA6206F
BIPOLAR LINEAR INTEGRATED CIRCUIT
DUAL HEADPHONE DRIVER (1.5V USE)
KIA6206F is a dual Headphone Driver IC
designed for low voltage operation. (1.5V, 3.0V)
Which is suitable for stereo headphone radio and
radio cassette recorder equipments. This item can
realize the low power dissipation and have high
power output capability.
FEATURES
* Condenser-less for input and output.
* Condenser-less for bootstrap.
* Built-in the muting function.
* High power output capability according to adopting
the matrix drive method.
PouTd)=14mW/ch(Typ.) at VIN(R)=VIN(L) Mode
PouT(2)=5.5mW/ch(Typ.) at V I N ( R ) = - V I N ( L ) Mode
POUT(3)=10.5mW/ch(Typ.) at VIN(R)=0 or VIN(L)=0
(Vcc=1.5V, RL=32 Q, f=lkHz, THD=10%)
* Operating supply voltage range.
: Vcc(opr)=0.9 ~ 5.0V(Ta=25°C)
MAXIMUM RATINGS (Ta=25°C)
CHARACTERISTIC
SYMBOL RATING
UNIT
Supply Voltage
Vcc 5 V
Output Current
Io(peak)
160
mA
Power Dissipation (Note)
PD
350 mW
Operating Temperature
T0pr - 2 5 - 7 5 °C
Storage Temperature
Tstg
-55-150
°C
Note : Derated above Ta=25°C in the proportion of 2.8mW/°C
for KIA6206F.
DIM
A
B1
B2
C
D
G
H
L
P
T
MILLIMETERS
8.2± 0.2
4.6± 0.2
6.5± 0.3
1.5± 0.2
0.4±0.1
0.1+0.1/—0.05
1.9 MAX
0.525± 0.2
1.0
0.15+0.1/—0.05
MFP-16
1994. 11. 11
Revision No : 0
KEC
1/9






KIA6206F Datasheet, Funktion
KIA6206F
APPLICATION INFORMATION
(1) Input Stage
The first stage is composed of the
differential amplifier of PNP-input.
Therefore, it is not necessary to use
any coupling condensers (Fig.3).
The input impedance is determined by
the internal resistance(51k ).
This output is connected to the next
stage through the emitter follower.
(2) Matrix Converter
The matrix ratio is determined by the
amplifier Al, A2 as shown in Fig.4.
Each of the output currents, which have
a ratio (1 : a), is formed by Al, A2.
The outputs of matrix converter, which
are previously mentioned, are
© L-ffR
®©
- a (L+R)
R-aL
These is applied to the drivers Bl, C, B2.
(3) Muting Function
As the terminal pin (3) for the muting
function is connected to Vcc, Q1 is
turned on, then Q2 and Q3 are turned on.
Therefore the DC voltage of the terminal
pin© is down, and all of the circuits
stop. At this time, the quiescent supply
current(ICCQ) scarcely flows into this
system. As the terminal pin® is opened,
the DC voltage of the terminal pin© does
not quickly come up, because of the
presence of the CR time-constant. So, the
shock-noise is reduced. As the supply voltage
is turned on, this operation is also done.
Fig. 3
Fig. 4
"<5 Vcc
.MUTING
TO BIAS
SECTION
03 S O
<
J
.Q2 Q3
\T_ Q13
TO POWER
SECTION
77777
77777 77777
77777
Fig. 5
1994. 11. 11
Revision No : 0
KEC
6/9

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