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PDF PA7468 Data sheet ( Hoja de datos )
| Número de pieza | PA7468 | |
| Descripción | STEREO 2.6W AUDIO POWER AMPLIFIER | |
| Fabricantes | Unisonic Technologies | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de PA7468 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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UNISONIC TECHNOLOGIES CO., LTD
PA7468
Preliminary
STEREO 2.6W AUDIO POWER
AMPLIFIER WITH DC VOLUME
CONTROL
DESCRIPTION
As an audio power amplifier with DC volume control, UTC
PA7468 is a stereo bridged audio power amplifier. In normal operation
it can produce 2.6Ω (1.8W) into 4W with less than 10% (1.0%)
THD+N.
In UTC PA7468, the attenuator range of the volume control is
from 20dB (@DC_VOL=0V) to -80dB (@DC_VOL=3.54V) with 32
steps. Besides, the UTC PA7468 includes the depop circuitry and the
thermal shutdown protection circuitry (to reduce pops and clicks noise
during power up or shutdown mode operation).
The UTC PA7468 has a BTL mode for speaker drive and a SE
mode for headphone drive. These tow modes can be quickly chosen
by the SE/ BTL input control pin signal.
FEATURES
* Low Operating Current: 9mA
*Two Output Modes Allowable with BTL and SE Modes(chosen by
SE/ BTL pin)
*Low Current Consumption :1mA(in Shutdown Mode)
*With Short Circuit Protection
*With Thermal Shutdown Protection
*With Over Current Protection Circuitry
*Eliminating Turn-on and Turn-off Transients in Outputs by Improved
Depop Circuitry to.
*Very High PSRR
*32 Steps Volume Adjustable
*BTL Mode :2.6W per Channel Output Power into 4Ω Load at 5V
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
PA7468L-S16-R
PA7468G-S16-R
PA7468L-S16-T
PA7468G-S16-T
Package
SOP-16
SOP-16
CMOS IC
Packing
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2011 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-322.b
1 page  
PA7468
Preliminary
CMOS IC
ELECTRICAL CHARACTERISTICS(Cont.)
Operating Characteristics, SE mode (VDD = 5V, Gain = 1V/V)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNIT
Maximum Output Power
POUT
THD+N=10%, fIN=1kHz
THD+N=1%, fIN=1kHz
RL= 16Ω
RL= 32Ω
RL= 16Ω
RL= 32Ω
220 mW
120 mW
160 mW
95 mW
Total Harmonic Distortion Plus
Noise
THD+N
POUT=125mW, RL= 16Ω, fIN=1kHz
POUT=65mW, RL= 32Ω, fIN=1kHz
0.09 %
0.09 %
Power Ripple Rejection Ratio
Channel Separation
PSRR VIN=0.1Vrms, RL=8Ω, CB=1μF, fIN=120Hz
Crosstalk CB=1μF, RL=32Ω, fIN=1kHz
60
60
dB
dB
Signal to Noise Ratio
S/N POUT=75mW, SE, RL=32Ω, A Weighting
100 dB
VOLUME CONTROL TABLE_BTL MODE (Supply Voltage VDD=5V)
GAIN(DB)
20
18
16
14
12
10
8
6
4
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
-80
HIGH(V)
0.12
0.23
0.34
0.46
0.57
0.69
0.80
0.91
1.03
1.14
1.25
1.37
1.48
1.59
1.71
1.82
1.93
2.05
2.16
2.28
2.39
2.50
2.62
2.73
2.84
2.96
3.07
3.18
3.30
3.41
3.52
5.00
LOW(V)
0.00
0.17
0.28
0.39
0.51
0.62
0.73
0.84
0.96
1.07
1.18
1.29
1.41
1.52
1.63
1.74
1.85
1.97
2.08
2.19
2.30
2.42
2.53
2.64
2.75
2.87
2.98
3.09
3.20
3.32
3.43
3.54
HYSTERESIS(MV)
52
51
50
49
47
46
45
44
43
41
40
39
38
37
35
34
33
32
30
29
28
27
26
24
23
22
21
20
18
17
16
RECOMMENDED VOLTAGE(V)
0
0.20
0.31
0.43
0.54
0.65
0.77
0.88
0.99
1.10
1.22
1.33
1.44
1.56
1.67
1.78
1.89
2.01
2.12
2.23
2.35
2.46
2.57
2.69
2.80
2.91
3.02
3.14
3.25
3.36
3.48
5
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
5 of 6
QW-R502-322.b
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet PA7468.PDF ] | |
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