YDA131 Datasheet PDF | YAMAHA CORPORATION





(PDF) YDA131 Datasheet

Part Number YDA131
Description STEREO 2.5W DIGITAL AUDIO POWER AMPLIFIER
Manufacture YAMAHA CORPORATION
Total Page 18 Pages
PDF Download Download YDA131 Datasheet PDF

Features: YDA131 D- 1 STEREO 2.5W DIGITAL AUDIO PO WER AMPLIFIER ■Outline The YDA131 is the high efficient digital audio power amplifier IC that operates on a single 5V power supply. This IC is capable of providing output power of 2.5W/channel, which is at the highest level as a dev ice on a single 5V power supply. By ado pting Yamaha's proprietary modulation s ystem, the device provides low distorti on and high signal to noise ratio at th e highest level among digital amplifier s in the equivalent class. This IC acce pts analog signal, converts it into dig ital pulse by the digital modulation ci rcuitry and outputs the signal from the large current capacity buffers. The di gital pulse signal that is outputted fr om the output buffer is converted into audio signal through an external low pa ss filter, and sent to the speakers. Th is IC has the overcurrent detection fun ction that detects short-circuiting of speaker terminal end and the high tempe rature detection function that detects abnormal high temperature..

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YDA131 datasheet
YDA131
D- 1
STEREO 2.5W DIGITAL AUDIO POWER AMPLIFIER
Outline
The YDA131 is the high efficient digital audio power amplifier IC that operates on a single 5V power supply.
This IC is capable of providing output power of 2.5W/channel, which is at the highest level as a device on a single 5V
power supply. By adopting Yamaha's proprietary modulation system, the device provides low distortion and high signal
to noise ratio at the highest level among digital amplifiers in the equivalent class.
This IC accepts analog signal, converts it into digital pulse by the digital modulation circuitry and outputs the signal from
the large current capacity buffers. The digital pulse signal that is outputted from the output buffer is converted into audio
signal through an external low pass filter, and sent to the speakers.
This IC has the overcurrent detection function that detects short-circuiting of speaker terminal end and the high
temperature detection function that detects abnormal high temperature.
With the overcurrent detection function, this IC generates a warning signal when the current that flows in the output
buffers of left and right channels exceeds a fixed value. With the high temperature detection function, this IC generates a
warning signal when the junction temperature becomes abnormal.
Furthermore, this IC builds in function that mute an audio output and shut off all functions of the IC. By this function,
power consumption is restrained at the minimum.
Features
High output power
2.5 W @ VDD=5.0V, 4(THD+N<10%)
High efficiency operation
85 % @ VDD=5.0V, RL=8
75 % @ VDD=5.0V, RL=4
www.DataSheeLt4oUw.cdoimstortion(THD+N)
0.018 % @ Po=1.0W, 1kHz, RL=4
High signal to noise ratio
103dB @ VDD=5.0V, Input sensitivity =1.0V, RL=4
97dB @ VDD=5.0V, Input sensitivity=150mV, RL=4
Low consumption current
14.0 mA @ VDD=5.0V, no signal(no filter)
7.0 mA @ VDD=5.0V, at mute
1 µA
@ VDD=5.0V, at sleep
Channel separation
80dB @ 1kHz
Any gain setting by external resistor
Any setting of starting time by VREF capacitor
Sleep function by SLEEP terminal
Output mute function by MUTE terminal
Over current detection function of speaker terminal end (Ground short-circuiting, Load short-circuiting)
High temperature detection function
Pop noise suppression function at turn-on and turn-off
Analog input/BTL(Bridge-Tied Load)output
24-pin plastic SSOP
Pin lead plating with Pd free (YDA13-EZ)
YDA131 CATALOG
CATALOG No.:LSI-4DA131A40
2004.12

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