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PDF YDA142 Data sheet ( Hoja de datos )
| Número de pieza | YDA142 | |
| Descripción | DIGITAL INPUT STEREO 9.5W DIGITAL AUDIO POWER AMPLIFIER | |
| Fabricantes | YAMAHA CORPORATION | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de YDA142 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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YDA142
D- 3D
DIGITAL INPUT STEREO 9.5W DIGITAL AUDIO POWER AMPLIFIER
■Overview
YDA142 (D-3D) is a 12V single supply voltage, high-efficiency digital audio power amplifier IC.
An audio power amplifier with a maximum output of 9.5W (RL=8Ω) × 2ch or 19W (RL=4Ω) × 1ch can be configured with
one chip.
YDA142 has a “Pure Pulse Direct Speaker Drive Circuit” that directly drives speakers while reducing distortion of a pulse
output signal and reducing noise on a signal, and it realizes the highest standard low distortion rate characteristics and low
noise characteristics as compared with those of digital amplifier ICs in the same class. The circuit allows you to design a
circuit with as few external parts as possible depending on use conditions because any filter is no longer required.
It is possible to input a left-justified or right-justified 16bit/8bit digital audio signal of 32kHz, 44.1kHz, or 48kHz.
In addition, YDA142 has a gain setting function in 32-level (analog setting) or 8-level (terminal setting).
YDA142 has Over-current Protection function for speaker output terminals, IC Thermal Protection function, POP Noise
Reduction function, and DC Input Detection function as well as Power-down function and Output Disable function.
■Features
・Maximum Output
9.5 W×2ch (VDDP=12.0V, RL=8Ω, THD+N=10%, MONO=L, GAIN[2:0]=H,L,L)
19 W×1ch (VDDP=12.0V, RL=4Ω, THD+N=10%, MONO=H, GAIN[2:0]=H,L,L)
・Efficiency
90 % (VDDP=12.0V, RL=8Ω, Po=9.5W)
・Distortion Rate (THD+N)
0.05 % (VDDP=12.0V, RL=8Ω, Po=1.0W, GAIN[2:0]=H,L,L)
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100dB (VDDP=12.0V, RL=8Ω, Po=9.5W, GAIN[2:0]=H,L,L)
・Channel Separation Ratio
-78dB (VDDP=12.0V)
・Supply voltage Range
9.0V to 13.5V
・3-wire Digital Signal Input
Fs: 32kHz/44.1kHz or 48kHz, Bits: 16bit or 18bit
・Gain Setting Function with GAIN[2:0] and GAINA terminal
・Power-down Function with SLEEPN terminal
・Output Mute Function with MUTEN terminal
・Monaural Output Function with MONO terminal
・Protection Functions (Over-current Protection, Thermal Protection, Clock Stop protection, Under-voltage Malfunction
Prevention, DC Input Detection)
・Pop-noise Reduction Function
・Digital Input/BTL(Bridge-Tied Load) output
・Package
Lead-free 52-pin SSOP (YDA142-EZ)
YDA142 CATALOG
CATALOG No.:LSI-4DA142A20
2006.4
1 page  
YDA142
■Description of operating functions
●Serial Audio Interface
Sampling Frequency (Fs) Selection
Input an audio signal using SCLK, LRCLK, and SDIN terminals. YDA142 supports three sampling frequencies (Fs):
32kHz, 44.1kHz, and 48kHz. Set the FSSEL terminal as follows in accordance with a Fs of a signal to use. At this time, use
a frequency of 64Fs as a SCLK signal.
FSSEL terminal setting
FSSEL Sampling Frequency (Fs)
L 44.1kHz, 48kHz
H 32kHz
Bit Number Selection
YDA142 supports two bit widths: 16-bit and 18-bit. Set the BITSEL terminal as follows in accordance with a bit width to
use.
BITSEL terminal setting
BITSEL
Input Bit Number
L 16 bits
H 18 bits
Format Selection
YDA142 can select one out of three interface formats: Right-justified MSB first format, Left-justified MSB first format, and
Left-justified (1bit delay) MSB first format. Set the MODE[1:0] as follows in accordance with a digital audio signal format
to use. Fig.1 to Fig.3 shows the details of each format.
MODE[1:0] terminal setting
MODE1
MODE0
LL
LH
HL
HH
Input Signal Format
Right-justified MSB first
Left-justified MSB first
Left-justified (1bit delay) MSB first
Reserved
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Right-justified MSB first
Fig.1 Right-justified MSB First Format
5
5 Page 
YDA142
■Example of application circuit
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ID
C1
C2,C3
C4
C5
C6,C7,C8,C9
R1
Value
1μF/16V
1μF/16V
0.1μF/16V
1μF/25V
4.7μF/25V
100kΩ, 1/16W
Element
Multilayer ceramic capacitor
Multilayer ceramic capacitor
Multilayer ceramic capacitor
Multilayer ceramic capacitor
Multilayer ceramic capacitor
Chip Resistor
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet YDA142.PDF ] | |
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