Datasheet

UNISONIC TECHNOLOGIES CO.,
3541
CMOS IC
CLASS AB STEREO
HEADPHONE DRIVER WITH
MUTE

DIP-8
DESCRIPTION
The UTC 3541 is a class AB stereo headphone driver with Mute
feature.

FEATURES
* Built-in Mute Function
* No Switch ON/OFF pops
* Short-Circuit Protection
* Low Power Consumption
* Large Output Voltage Swing
* High Signal-to-Noise Ratio
■
SOP-8
ORDERING INFORMATION
Ordering Number
Lead Free
3541L-D08-T
-

Halogen Free
3541G-D08-T
3541G-S08-R
Package
Packing
DIP-8
SOP-8
Tube
Tape Reel
MARKING
DIP-8
8
7
6
5
UTC
3541
1
2
3
4
SOP-8
Date Code
L: Lead Free
G: Halogen Free
Lot Code
www.unisonic.com.tw
Copyright © 2015 Unisonic Technologies Co.,
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CMOS IC

PIN DESCRIPTION
I/O
O
I
I
I
I
O
B
PIN NAME
OUT 1
Mute
IN 1
VSS
IN 2
BIAS
OUT 2
VDD
A
PIN NO.
1
2
3
4
5
6
7
8
+
+
DESCRIPTION
Output pin for Channel A
Mute control input, high for normal operation
Input pin for Channel A
Power ground
Input pin for Channel B
Right channel bias input pin
Output pin for Channel B
Power supply input
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
0dB
BLOCK DIAGRAM
0dB

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
CMOS IC
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VDD
7
V
Output Short-Circuit Duration (TA=25°C, PD=1W)
tSC(O)
20
S
Junction Temperature
TJ
150
°C
Operating Temperature
TOPR
-40 ~ +85
°C
Storage Temperature
TSTG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
RATINGS
UNIT
DIP-8
108
Junction to Ambient (Note)
θJA
°C/W
SOP-8
210
DIP-8
45
Junction to Case
θJC
°C/W
SOP-8
40
Note: θJA is measured with the component mounted on a high effective thermal conductivity test board in free air.

SYMBOL
ELECTRICAL CHARACTERISTICS
(VIN=0dBV, VCC=5V, TA=25°C, f=1kHz, RL=32Ω, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Supply Voltage
VDD
Mute Terminal Voltage
VTM
Quiescent Current
IQ
VIN = 0VRMS
Mute Current
IMUTE
Voltage Gain
GVCL VIN=1VRMS, f =1kHz, RL=32Ω
Differential Channel Voltage Gain
∆GVCL
Channel Separation
CS
f =1 kHz
Mute Attenuation
ATT
VIN = 1Vrms, f =1 kHz, Mute=L
Ripple Rejection
RR
FRR =100Hz, VRR = -20dBV
Output Noise Voltage
VNO
BW = 20~20kHz, VIN=0VRMS
Total Harmonic Distortion
THD BW<120 kHz
Rated Output Power 1
PO1
R =32Ω
THD+N=0.1%, BW＜120kHz L
Rated Output Power 2
PO2
RL=16Ω
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
3.0
0.3
-2
-0.5
-90
65
50
50
105
TYP
5.0
0.7
3.5
200
0
0
-92.5
70
60
-93
0.03
55
110
MAX UNIT
6.0
V
1.6
V
5
mA
μA
2
dB
0.5
dB
dB
dB
dB
-85 dBV
0.1
%
mW
mW
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
CMOS IC
TEST AND APPLICATION CIRCUIT
10µ F
VINB
220μF
1μF
BIAS
IN2
5
VDD
VDD
8
OUT2
6
7
BIAS
100μF
UTC 3541
0dB
+B
0dB
+A
MUTE
4
VSS
2
3
IN1 Mute
1
OUT1
220μF
1μF
1μF
VINA
100kΩ
VMUTE
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
H : Speaker Action
L : Mute on
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
CMOS IC
TYPICAL CHARACTERISTICS
Bias DC Voltage VS. Supply Voltage
Quiescent Current VS. Supply Voltage
8
5
RL=32Ω
7
6
4
5
3
4
MUTE: OFF
2
3
2
1
MUTE: ON
1
0
RL=32Ω
2
4
6
Supply Voltage, VDD(V)
0
0
8
0
Output Voltage VS. Mute Control Voltage
+8
VDD=5V
0 VIN=0dBV
-10 f=1kHz
RL=32Ω
-20
+4
+2
+0
-2
-40
-4
-50
-6
-60
-8
-70
-10
0
0.8
1.2
1.6
0.4
Mute Control Voltage, VTM(V)
2
-12
10
100
1k
10k
Frequency, f(Hz)
100k 120 k
Mute Attenuation VS. Frequency
+0
VDD=5V
-10
VIN=0dBV
-20 RL=32Ω
Channel Separation VS. Frequency
-20
10
VDD = 5V
VIN = 0 dBV
+6
-30
+0
6
4
8
Supply Voltage, VDD(V)
Voltage Gain VS. Frequency
10
-80
2
VDD=5V
RL=32Ω
-30
-40
-40
-60
-50
-60
-80
-70
-80
-100
-90
-120
10
100
1k
10k
Frequency, f (Hz)
100k
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
-100
10
100
1k
10k
Frequency, f (Hz)
100k
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CMOS IC
TYPICAL CHARACTERISTICS(Cont.)
Ripple Rejection, RR(dB)

UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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