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KODENSHI KOREA

KKA7050 Datasheet Preview

KKA7050 Datasheet

LOW VOLTAGE MONO/STEREO POWER AMPLIFIER

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TECHNICAL DATA
LOW VOLTAGE MONO/STEREO POWER AMPLIFIER
KKA7050
GENERAL DESCRIPTION
The KKA7050 is a low voltage audio amplifier for small radios with headphones (such as watch, pen and
pocket radios) in mono (bridge-tied load) or stereo applications.
Features
• Limited to battery supply application only (typ. 3 and 4 V)
• Operates with supply voltage down to 1,6 V
• No external components required
• Very low quiescent current
• Fixed integrated gain of 26 dB, floating differential input
• Flexibility in use - mono BTL as well as stereo
• Small dimension of encapsulation (see package design
example)
QUICK REFERENCE DATA
Supply voltage range
Total quiescent current (at Vp = 3 V)
Bridge tied load application (BTL)
Output power at R) = 32 Q
Vp=3V;dtat=10%
D.C. output offset voltage between the outputs
Noise output voltage (r.m.s. value)
at f = 1 kHz; Rg = 5 kfit
Stereo application
Output power at R( = 32
dtot = 10%; Vp = 3V
dtot = 10%; Vp= 4,5V
Channel separation at Rs = 0 ; f = 1 kHz
Noise output voltage (r.m.s. value)
at f = 1 kHz; Rs = 5 k
PACKAGE OUTLINE 8-lead DIL; plastic (SOT97); SOT97-1;
Vp
ltot
PO
lAVI
Vno(rms)
PO
PO
K
Vno(rms)
1,6 to 6,0 V
typ. 3,2 mA
typ.
max.
140 mW
70 mV
typ. 140 mV
typ. 35 mW
typ. 75 mW
typ. 40 dB
typ. 100 mV
1




KODENSHI KOREA

KKA7050 Datasheet Preview

KKA7050 Datasheet

LOW VOLTAGE MONO/STEREO POWER AMPLIFIER

No Preview Available !

www.DataSheet4U.com
KKA7050
CHARACTERISTICS Vp = 3 V; f = 1 kHz; RL = 32 0., Tamb = 25 °C; unless otherwise specified
PARAMETER
SYMBOL MIN.
TYP.
MAX.
UNIT
Supply
Supply voltage
Total quiescent current
Bridge-tied load application (BTL); see Fig.4
Output power; note 1
Vp = 3,0 V; diet = 10%
Vp = 4,5 V; diet = 10% (RL = 64 Q)
Voltage gain
Noise output voltage (r.m.s. value)
RS = 5 kQ.-, f = 1 kHz
RS = 0 Q; f = 500 kHz; B =5 kHz
D.C. output offset voltage (at Rs = 5 k)
Input impedance (at Rs =)
Input bias current
Stereo application;
Output power; note 1
Vp=3,OV;dtot=10%
Vp=4,5V;dtot=10%
Voltage gain
Noise output voltage (r.m.s. value)
RS = 5 k; f = 1 kHz
RS = 0 ; f = 500 kHz; B =5 kHz
Channel separation
RS = 0 ; f = 1 kHz
Input impedance (at Rs = )
Input bias current
Vp 1,6 -
6,0 V
Itot -
3,2 4
mA
PO -
PO -
GV -
Vno(rms)
Vno(rms)
lVI
IZiI
Ii
-
-
-
1
-
140 -
150 -
32 -
140 -
tbf -
- 70
--
40 -
mW
mW
dB
mV
mV
mV
M
nA
PO -
PO -
GV 24.5
Vno(rms) -
Vno(rms) -
K 30
IZjl 2
Ii -
35 -
mW
75 -
mW
26 27.5 dB
100 -
tbf -
mV
mV
40 -
--
20 -
dB
M
nA
Note
1. Output power is measured directly at the output pins of the IC. It is shown as a function of the supply voltage in Fig.2
(BTL application) and Fig.3 (stereo application).
Аpplication diagram (BTL)
Аpplication diagram (stereo)
2


Part Number KKA7050
Description LOW VOLTAGE MONO/STEREO POWER AMPLIFIER
Maker KODENSHI KOREA
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KKA7050 Datasheet PDF






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