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PDF APA2058 Data sheet ( Hoja de datos )
| Número de pieza | APA2058 | |
| Descripción | 2.4W Stereo Fully Differential Audio Power Amplifier | |
| Fabricantes | ANPEC | |
| Logotipo |  |
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APA2058
2.4W Stereo Fully Differential Audio Power Amplifier With Stereo Class AB
Cap-free Headphone Driver and LDO
Features
• Meeting VISTATM Requirement
• Fully Differential Power Amplifier with
Excellent RF Rectification Immunity
• No Output Capacitor Required for Head
Phone Driver
• Integrated LDO (Low Dropout Regulator) for
Audio Codec (3.3V)
• Adjustable Gain Setting for Power Amplifier
• AV=-1.5V/V Fixed Gain Setting for Headphone
Driver
• Fast Start-up Time
• Integrated De-Pop Circuitry
• High PSRR (Power Supply Rejection Ratio)
• Thermal and Over-Current Protections
• Less External Components Required
• Space Saving Package
– TQFN5x5-32A
• Lead Free and Green Devices Available
(RoHS Compliant)
General Description
The APA2058 is a stereo fully differential audio power
amplifier with stereo Class-AB cap-free headphone driver
and LDO available in a TQFN5X5-32A pins package.
The built-in gain setting at power amplifier can minimize
the external component counts. For the flexible application,
the gain can be set to 4-steps, 10, 12, 15.6, and 21.6dB by
gain control pins (GAIN0 and GAIN1). The power amplifier’s
fully differential architecture provides high PSRR, in-
creased immunity to noise and RF rectification.
The APA2058 power amplifiers are capable of driving
2.4W at VDD=5V into 4Ω speaker, the cap-free headphone
drivers can provide 180mW at HVDD=3.3V into 16Ω
headphones, and the LDO has a maximum 200mA(3.3V)
driver current for audio codec. The APA2058 provides ther-
mal and over-current protections.
The cap-free headphone driver eliminates the DC block-
ing capacitors at outputs, save the PCB space. The inte-
gration of fully differential power amplifier, cap-free head-
phone driver, and LDO is a best solution for VISTATM re-
quirement and it can lower the total BOM costs.
Applications
• LCD Monitor
• Notebook
• Portable DVD
Simplified Application Circuit
Audio
Codec
LDO (Low Drop
-Out Regulator)
Stereo
Speakers
Stereo
Headphone
+0
-10
VDD=5.0V
RL=4Ω
-20 AV=10dB
Vin=0.2VPP
-30 Ci=0.47µF
Input Short
-40 AMP Mode
-50
-60
-70
-80
-90
-100
20
100 1k
Frequency (Hz)
10k 20k
ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and
advise customers to obtain the latest version of relevant information to verify before placing orders.
Copyright © ANPEC Electronics Corp.
Rev. A.5 - Feb., 2010
1
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
1 page  
APA2058
Electrical Characteristics (Cont.)
Refer to the typical application circuits. VDD=5V, HVDD=3.3V, Gnd=0V, TA=25oC (unless otherwise noted)
Symbol
Parameter
Test Conditions
APA2058
Min. Typ. Max.
HEADPHONE MODE, AV = -1.5V/V, CPF=CPO=1µF(X5R type)
TSTART-UP
Start-Up Time from shutdown CB=0.47µF
Ri Input Resistor
AV Closed-Loop Gain
VOS Output Offset Voltage
PO Output Power
VO Output Swing Voltage
THD+N
Total Harmonic Distortion
Plus Noise
Crosstalk Channel Separation
PSRR
Power Supply Rejection
Ratio
S/N Signal-to-Noise Ratio
Vn Noise Output Voltage
LDO (LOW DROP-OUT REGULATOR)
RL = 32Ω
THD+N=1%, fin=1kHz
RL=16Ω
RL=32Ω
THD+N=10%, fin=1kHz
RL=16Ω
RL=32Ω
THD+N=1%, fin=1kHz
RL=320Ω,
RL=10kΩ,
THD+N=10%, fin=1kHz
RL=320Ω,
RL=10kΩ,
fin=1kHz
RL=16Ω , PO=125mW
RL=32Ω, PO=88mW
RL=320Ω, VO=1.5V
RL=10kΩ, VO=1.6V
fin=1kHz
RL=16Ω , PO=16mW
RL=32Ω, PO=12mW
RL=320Ω, VO=0.22V
RL=10kΩ, VO=0.22V
fin=217Hz,Vrr=0.2Vrms
RL=32Ω,
fin=20~20kHz, With A-weighting Filter
RL=16Ω , PO=125mW
RL=32Ω, PO=88mW
RL=320Ω, VO=1.5V
RL= 10kΩ, VO=1.6V
fin=20~20kHz, With A-weighting Filter
RL=32Ω
-
17
-1.45
-
100
150
1.8
-
-
-
-
-
-
10
20
-1.5
1
140
120
180
160
2.0
2.1
2.45
2.6
0. 03
0. 02
0. 005
0. 004
-82
-82
-77
-77
-80
99
100
100
100
15
-
-
-1.55
5
-
-
-
-
-
-
-
-
-
IO Output Current
- - 200
VO Output Voltage
Line Regulation
IO=1mA
IO=1mA, VDD=4.5V to 5.5V
3.2 3.3 3.4
- 1.5 5
Load Regulation
PSRR
Power Supply Rejection
Ratio
RDIS Discharge Resistor
CHARGE PUMP, CPF=CPO=1µF(X5R type)
FOSC
Oscillator Frequency
REQ Equivalent Resistance
IO=1mA to 200mA
IO=1mA,fin=120Hz,Vrr=0.2Vrms
- 0.03 0.1
- -50 -
- 50 -
- 450 -
- 10 -
CVss
RDIS
Negative Output Voltage
Discharge Resistor
No load
-5.1 -5 -4.9
-5-
Unit
ms
kΩ
V/V
mV
mW
V
%
dB
µVrms
mA
V
mV
mV/mA
dB
kΩ
kHz
Ω
V
kΩ
Copyright © ANPEC Electronics Corp.
Rev. A.5 - Feb., 2010
5
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
5 Page 
APA2058
Typical Operating Characteristics (Cont.)
(TA = +25°C, unless otherwise noted.)
HP Attenuation vs. Frequency
+0
-10 VDD=5.0V
-20 HVDD=3.3V
-30
RL=10kΩ
Ci=1µF
-40 VO=1Vrms (HP enable)
-50 HP Mode (disable)
-60
-70 Right channel
-80
Left channel
-90
-100
-110
-120
20
100 1k
Frequency (Hz)
10k 20k
PSRR vs. Frequency
-20
-30
VDD=5.0V
RL=8Ω
-40 AV=10dB
Ci=0.47µF
-50 Vrr=0.2Vrms
-60 AMP Mode
-70
-80
-90
-100
-110
-120
20
Vrr:Ripple Voltage on VDD
100 1k
Frequency (Hz)
10k 20k
PSRR vs. Frequency
-20
-30
VDD=5.0V
HVDD=3.3V
-40
RL=32Ω
Ci=1µF
-50 Vrr=0.2Vrms
HP Mode
-60
-70
-80
-90
-100
-110
-120
20
Vrr:Ripple Voltage on HVDD
100 1k 10k 20k
Frequency (Hz)
PSRR vs. Frequency
+0
-10
VDD=5.0V
IO=10mA
-20
Vrr=0.2Vrms
LDO Mode
-30
-40
-50
-60
-70
-80
20
Vrr:Ripple Voltage on VDD
100 1k
10k 20k
Frequency (Hz)
PSRR vs. Frequency
-20
-30
VDD=5.0V
HVDD=3.3V
-40 RL=10kΩ
Ci=1µF
-50 Vrr=0.2Vrms
HP Mode
-60
-70
-80
-90
-100
-110
-120
20
Vrr:Ripple Voltage on HVDD
100 1k
Frequency (Hz)
10k 20k
LDO Output Voltage vs. Supply
Voltage
3.35
3.34 LDO Mode
3.33
3.32
3.31
3.30
IO=10mA
IO=100mA
3.29
3.28
IO=200mA
3.27
3.26
3.254.5
4.7 4.9 5.1 5.3
Supply Voltage (Volt)
5.5
Copyright © ANPEC Electronics Corp.
Rev. A.5 - Feb., 2010
11
www.anpec.com.tw
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 29 Páginas | |
| PDF Descargar | [ Datasheet APA2058.PDF ] | |
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