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YDA138 Datasheet

  • YDA138

  • D- 3 STEREO 10W DIGITAL AUDIO POWER AMPLIFIER

  • 20頁(yè)

  • YAMAHA

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YDA138
D- 3
STEREO 10W DIGITAL AUDIO POWER AMPLIFIER
鈻燨verview
YDA138 (D-3)
is a high efficient digital audio power amplifier IC that operates with a single 12V power supply.
An audio power amplifier with a maximum output of 10W (R
L
=8惟)脳2ch or 20W (R
L
=4惟)脳1ch can be configured
with one chip.
YDA138 has a 鈥淧ure Pulse Direct Speaker Drive Circuit鈥?which directly drives speakers while reducing distortion of
pulse output signal and reducing noise on the signal, and realizes the highest standard low distortion rate characteristics
and low noise characteristics as 10W-class of output digital amplifier IC.
In addition, circuit design with fewer external parts can be made depend on the condition of use because corresponds to
filter less.
YDA138 has 50mW (R
L
=32惟)脳2ch Class AB headphone amplifiers.
YDA138 provides Over-current protection function for speaker output terminals, IC thermal protection function, POP
noise reduction function, and AM interference measures function as well as power-down function and output mute
function.
鈻燜eatures
Digital Amplifier
銉籆ontinuous
maximum output
10 W脳2ch
錛燰
DDP
=12.0V, R
L
=8惟, THD+N=10%
20 W脳1ch
錛燰
DDP
=12.0V, R
L
=4惟, THD+N=10%
銉籈fficiency
88
% 錛燰
DDP
=12.0V, R
L
=8惟, Po=10W
銉籇istortion
Rate (THD+N)
0.02 %
錛燰
DDP
=12.0V, R
L
=8惟, Po=1.0W
銉籗/N
Ratio
103dB
錛燰
DDP
=12.0V, R
L
=8惟, Po=10W, VOL[1:0]=H,H
銉籆hannel
Separation
-70dB
錛燰
DDP
=12.0V, R
L
=8惟, VOL[1:0]=H,H
Class AB Headphone Amplifier
銉籑aximum
output
50mW脳2ch
錛燰
DDP
=12.0V, R
L
=32惟, THD+N=10%
銉籇istortion
Rate(THD+N)
0.01
% 錛燰
DDP
=12.0V, R
L
=32惟, P
ho
=30mW
銉籗/N
Ratio
95dB
錛燰
DDP
=12.0V, R
L
=32惟, P
ho
=20mW, VOL[1:0]=H,H
Others
銉籓perating
power supply range
9.0V to 13.5V
銉籑ulti-channel
synchronizing operation by
Master/Slave switching function
銉籆arrier
frequency switching function
524kHz/466kHz
銉籗leep
function with SLEEPN terminal
銉籓utput
muting function with MUTEN terminal
銉籓ver-current
protection function
銉籘hermal
protection function
銉籆lock
stop detection function
銉籔op
noise reduction function
銉籄M
interference measures function
銉籄nalog
input/BTL (Bridge-Tied Load) output
銉?2-pin
plastic SSOP
Pin lead plating with Pd free (YDA138-EZ)
YDA138 CATALOG
CATALOG No.:LSI-4DA138A20
2005.3

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