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부품번호 | PAM8007 기능 |
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기능 | FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER | ||
제조업체 | Diodes | ||
로고 | |||
전체 17 페이지수
A Product Line of
Diodes Incorporated
PAM8007
FILTERLESS 3W CLASS-D STEREO AUDIO AMPLIFIER
with DC VOLUME CONTROL and HEADPHONE OUTPUT
Description
The PAM8007 is a 3W, Class-D audio amplifier with headphone
amplifier. Advanced 64-Step DC volume control minimizes external
components and allows speaker volume control and headphone
volume control. It offers low THD+N, to produce high-quality sound
reproduction. The new filterless architecture allows the device to drive
the speaker directly, without low-pass output filters which will save
30% system cost and 75% PCB area.
With the same numbers of external components, the efficiency of the
PAM8007 is much better than class-AB cousins. It can extend the
battery life thus be ideal for portable applications.
The PAM8007 is available in a SSOP-24 and SOP-24 package.
Pin Assignments
Features
• 3W Output at 10% THD with a 4Ω Load and 5V Power Supply
• Filterless, Low Quiescent Current and Low EMI
• Low THD+N
• 64-Step DC Volume Control
• Headphone Output Function
• Superior Low Noise
• Low Pop Noise
• Efficiency Up to 92%
• Short Circuit Protection
• Thermal Shutdown
• Few External Components to Save the Space and Cost
• Pb-Free Package
Applications
• LCD Monitors / TV Projectors
• Notebook Computers
• Portable Speakers
• Portable DVD Players, Game Machines
• VoIP/Speaker Phones
PAM8007
Document number: DSxxxxx Rev. 1 - 2
1 of 17
www.diodes.com
October 2012
© Diodes Incorporated
A Product Line of
Diodes Incorporated
PAM8007
Thermal Information
Parameter
Thermal Resistance (Junction to Ambient)
Thermal Resistance (Junction to Case)
Package
SSOP-24
SOP-24
SSOP-24
SOP-24
Symbol
θJA
θJC
Max
90
79.2
32
27
Unit
°C/W
Electrical Characteristics (@TA = +25°C, VDD = 5V, Gain = 24dB, RL = 8Ω, unless otherwise specified.)
Parameter
Class D Stage
Supply Voltage Range
Quiescent Current
Output Offset Voltage
Drain-Source On-State Resistance
Output Power
Total Harmonic Distortion Plus Noise
Power Supply Ripple Rejection
Channel Separation
Oscillator Frequency
Efficiency
Noise
Signal Noise Ratio
Earphone Stage
Output Power
Total Harmonic Distortion Plus Noise
Power Supply Ripple Rejection
Channel Separation
Noise
Signal Noise Ratio
Control Section
Mute Current
Shutdown Current
SHDN Input High
SHDN Input Low
MUTE Input High
MUTE Input Low
Line/Ear Input High
Line/Ear Input Low
Over Temperature Protection
Over Temperature Hysteresis
Symbol
Test Conditions
VDD
IQ
VOS
RDS(ON)
PO
THD+N
PSRR
CS
fOSC
η
VN
SNR
No Load
No Load
IDS = 0.5A
P MOSFET
N MOSFET
THD+N = 10%
f = 1kHz
RL = 8Ω
RL = 4Ω
RL = 8Ω, PO = 1W, f = 1KHz
RL = 4Ω, PO = 2W, f = 1KHz
Input AC-GND, f = 1KHz, VPP = 200mV
VO = 1VRMS, f = 1KHz
PO = 1.75W, f =1 kHz, RL = 8Ω
PO = 3.0W, f =1 kHz, RL = 4Ω
Input AC-GND
A-Weighting
Gain = 12dB
No A-Weighting
f = 20 – 20kHz, THD = 1%
PO
THD+N
PSRR
CS
VN
SNR
THD+N = 1%, RL = 32Ω, f = 1kHz
RL = 32Ω, PO = 10mW, f = 1kHz
Input AC-GND, f = 1kHz, VPP = 200mV
VO = 1VRMS, f = 1kHz
Input
AC-GND
A-Weighting
No A-Weighting
f = 20 – 20kHz, THD = 1%
IMUTE
ISHDN
VSH
VSL
VMH
VML
VDH
VDL
OTP
OTH
VMUTE = 0V
VSHDN = 0V
Min Typ
2.5
12
10
0.23
0.17
1.55 1.75
2.85 3.1
0.12
0.15
63
-88
200 250
85 92
80 88
65
90
84
69
0.04
73
95
19
25
97
8
1.5
1.5
2.5
150
30
Max Units
5.5 V
16 mA
50 mV
Ω
W
%
dB
dB
300 kHz
%
%
µV
dB
mW
%
dB
dB
µV
dB
12 mA
20 µA
V
0.4
0.4 V
0.4 V
°C
°C
PAM8007
Document number: DSxxxxx Rev. 1 - 2
4 of 17
www.diodes.com
October 2012
© Diodes Incorporated
4페이지 A Product Line of
Diodes Incorporated
PAM8007
Typical Performance Characteristics (cont.) (@TA = +25°C, unless otherwise specified.)
Speaker
PAM8007
Document number: DSxxxxx Rev. 1 - 2
7 of 17
www.diodes.com
October 2012
© Diodes Incorporated
7페이지 | |||
구 성 | 총 17 페이지수 | ||
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