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YDA168B 데이터시트 PDF




YAMAHA CORPORATION에서 제조한 전자 부품 YDA168B은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

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부품번호 YDA168B 기능
기능 MONO 3.3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
제조업체 YAMAHA CORPORATION
로고 YAMAHA CORPORATION 로고


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YDA168B 데이터시트, 핀배열, 회로
YDA168B
D-4H3B
MONO 3.3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
„ General Description
YDA168B (D-4H3B) is an integrated circuit with Max.3.3W (RL=4)×1ch Class-D speaker
amplifier. This speaker amplifier uses the filter-less method allowing a speaker to be directly
connected to the output and features low-level distortion and noise characteristics.
The speaker amplifier, having Yamaha original Power Limit Interlock Non-Clip function, controls
Gain automatically and prevents output signals from being clipped at the supply voltage. In
addition, this power limit function permits the maximum output to be arbitrarily specified to 100mW
to 1000mW according to a speaker to use.
Furthermore, this amplifier has the following functions: overcurrent and overtemperature
protection functions, DC output protection function, under-voltage malfunction prevention function,
as well as EMI noise and the pop noise reduction functions and High PSRR function.
2.5V~5.25V
YDA168B (D-4H3B)
3.3W at 5V
MONO
Differential
CTRL
PL
+8dB
PWM
Output Buffer
+10dB
Non-Clip + Power Limit
Power-Down Control
Circuit Protection
4Ω~
YDA168B Simplified Diagram
YDA168B CATALOG
CATALOG No.: LSI-4DA168B20
2010.9




YDA168B pdf, 반도체, 판매, 대치품
YDA168B
„ Examples of Effects of using Power Limit Function
Power Limit function is a function provided for the purpose of reducing the overload on a speaker
and limits the output power *1. Any power limit level, ranging from 100mW to 1000mW, can be
freely set. Even if an excessive signal is input, Non-Clip function automatically controls PWM
amplifier gain to keep the maximum output power to a constant level. And, when PL pin is
connected to GND, the output is set to 0.60W (RL = 8 ).
*1: This function does not guarantee 100% speaker protection.
VDD
Power Limit Level
Max. THD 1%(Typ.)
Power Limit – Conceptual Diagram
Power Limit Example: Music Source
Power Limit OFF
Power Limit = 0.3W(8Ω)
Controlled to the maximum output
0.3W even in an excessive input.
Power Limit = 0.1W(8Ω)
Controlled to the maximum output
0.1W even in an excessive input.
Actually-measured output power for each power limit value
4 LSI-4DA168B20

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YDA168B 전자부품, 판매, 대치품
YDA168B
„ Pin Function
No. Name
I/O
Function
A1 IN+ IA Differential Input Pin (positive)
A2
VDD
Power Power Supply Pin
A3 OUT+
O Speaker Output Pin (positive)
B1 AGND GND Ground for Analog Circuits
B2 PL IA Power Limit Setting Pin
B3 PGND GND Ground for Output Circuits
C1 IN
IA Differential Input Pin (negative)
C2 CTRL
IA Power-down and Non-Clip setting pin
C3 OUT
O Speaker Output Pin (negative)
(Note1, 2)
(Note1)
(Note1, 2)
I: Input Pin, O: Output Pin, A : Analog Pin
Note 1: Note that leakage current flows through the protection circuit (PMOS Tr.) when applying a
voltage higher than VDD to this pin.
Note 2: When using a D/A Converter output with Noise-Shaping in the former stage, input a signal
whose signal components outside the audible frequency have been sufficiently attenuated (e.g.
90dBV at the frequency ranging from 150 kHz to 320 kHz). Otherwise, Beat Noise (i.e. noise
caused by interference between two frequencies) may occur because of signal components in
the same band as internal clocks used for PWM modulation.
LSI-4DA168B20
7

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관련 데이터시트

부품번호상세설명 및 기능제조사
YDA168B

MONO 3.3W Non-Clip DIGITAL AUDIO POWER AMPLIFIER

YAMAHA CORPORATION
YAMAHA CORPORATION

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