TA0102A 반도체 회로 부품 판매점
DIGITAL AUDIO AMPLIFIER DRIVER
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 ETC |
Tripath Technology, Inc. - Technical Information
TA 0 1 0 2 A
STEREO 150W (4Ω) CLASS-T DIGITAL AUDIO AMPLIFIER
DRIVER USING DIGITAL POWER PROCESSING (DPPTM)
TECHNOLOGY
Technical Information
Revision 3.1 – June 2000
GENERAL DESCRIPTION
The TA0102A is a 150W continuous average (4Ω), two channel Amplifier Driver
Module which uses Tripath’s proprietary Digital Power Processing (DPPTM)
technology. Class-T amplifiers offer both the audio fidelity of Class-AB and
the power efficiency of Class-D amplifiers.
Applications
Audio/Video
Amplifiers/Receivers
Pro-audio Amplifiers
Automobile Power Amplifiers
Subwoofer Amplifiers
Benefits
Reduced system cost with smaller/less
expensive power supply and heat sink
Signal fidelity equal to high quality Class-
AB amplifiers
High dynamic range compatible with digital
media such as CD and DVD
Features
Class-T architecture
Proprietary Digital Power Processing
technology
Supports wide range of output power levels
Typical Performance
10
20Hz - 22kHz BW
f = 1kHz
5
BBM = 25nS
Vs = +/-45V
Av = 14.8
ST STP19NB20 MOSFET
2
1
0.5
THD+N versus Output Power
0.2
RL = 8Ω
0.1
0.05 RL = 4Ω
0.02
0.01
1
2
1
5 10
20
Output Power (W)
50 100 200
“Audiophile” Quality Sound
0.05% THD+N @ 20W, 8Ω
0.03% IHF-IM @ 30W, 8Ω
80W @ 8Ω, 0.1% THD+N, VS = +/-45V
150W @ 4Ω, 0.1% THD+N, VS = +/-45V
High Power
100W @ 8Ω, 1% THD+N, VS = +/-45V
170W @ 4Ω, 1% THD+N, VS = +/-45V
High Efficiency
90% @ 85W @ 8Ω, VS = +/-33.75V
88% @ 155W @ 4Ω, VS = +/-33.75V
Dynamic Range = 108 dB
Requires only N-Channel MOSFET output
transistors
High power supply rejection ratio
Mute input
Outputs short circuit protected
Over- and under-voltage protection
Bridgeable, single-ended outputs
38-pin quad package
Supports 100kHz BW of Super Audio CD and
DVD-Audio (refer to Application Note for specifics)
TA102A –Rev.3.1/06.01
Tripath Technology, Inc. - Technical Information
Absolute Maximum Ratings
SYMBOL
PARAMETER
VS Supply Voltage (VSPOS & VSNEG)
V5 Positive 5V Bias Supply
VN12
Supply Voltage: Nominal +12V referenced to VSNEG
TSTORE
TA
Storage Temperature Range
Operating Free-air Temperature Range
VALUE
+/-70
6
18
-40 to 150
-20 to +80
UNITS
V
V
V
°C
°C
Notes: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
Damage will occur to the device if VN12 is not supplied or falls below the recommended
operating voltage when VS is within its recommended operating range.
SYM BOL
VS
V5
VN12
Operating Conditions
PARAM ETER
M IN.
Supply Voltage (Vspos & Vsneg)
Positive 5V Bias Supply
+/-28
4.5
Supply Voltage: Nominal +12V referenced to VSNEG
10.8
TYP.
5
12
M AX.
+/-49
5.5
13.2
UNITS
V
V
V
Note: Operating Conditions indicate conditions for which the device is functional. See Electrical Characteristics
for guaranteed specific performance limits.
Electrical Characteristics
Unless otherwise specified, TA = 25°C. See Notes 1 & 2 for Operating Conditions and Test/Application
Circuit Setup.
SYM BOL
PARAM ETER
MIN. TYP. MAX. UNITS
Iq
IS
I5
IVN12
VU
VO
VIH - MUTE
VIL - MUTE
IDDMUTE
V OH
V OL
V T OC
AV
V of f s et
Quiescent Current
+33.75V
(no load, BBM0=BBM1=0)
-33.75V
+5V
VN12
Source Current @ POUT = 150W, 4Ω +33.75V
-33.75V
Source Current for 5V Bias Supply @ POUT = 150W, RL = 4Ω
Source Current for VN12 Supply @ POUT = 150W, RL = 4Ω
Under Voltage (Vspos & Vsneg)
Over Voltage (Vspos & Vsneg)
High-level Input Voltage (MUTE)
Low -level Input Voltage (MUTE)
Mute Supply Current +33.75V
(no load, 145nS delay) -33.75V
+5V
VN12
High-level Output Voltage (HMUTE & OVERLOADB)
Low -level Output Voltage (HMUTE & OVERLOADB)
Over Current Sense Voltage Threshold
Gain Ratio VO/VI, RIN = 0Ω
Offset Voltage, no load, MUTE = Logic low (before nulling)
+/-49
3.5
3.5
0.63
25
30
45
110
5.1
5.2
42
46
0.315
4
18
0.475
0.70
77
75
50
65
160
+/-28
1
2
5
25
2
1
0.77
500
mA
mA
mA
mA
A
A
mA
mA
V
V
V
V
mA
mA
mA
mA
V
V
V
V/V
mV
Minimum and maximum limits are guaranteed but may not be 100% tested.
2 TA0102A, Rev. 3.1/06.01
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TA0102A amplifier
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