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参数资料
| 型号： | YDA144B-PZ |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, PBGA16 |
| 封装： | LEAD FREE, WLCSP-16 |
| 文件页数： | 1/26页 |
| 文件大小： | 1323K |
| 代理商： | YDA144B-PZ |
YDA144B CATALOG
CATALOG No.:LSI-4DA144B30
2007.10
YDA144B
D-4N
STEREO 2.1W Non-Clip DIGITAL AUDIO POWER AMPLIFIER
■
Overview
YDA144B (D-4N) is a digital audio power amplifier IC with maximum output of 2.1W (RL=4)×2ch.
YDA144B has a “Pure Pulse Direct Speaker Drive Circuit” 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 among digital amplifier ICs for mobile use.
In addition, circuit design with fewer external parts can be made depend on the condition of use because corresponds to
filter less.
The YDA144B features Yamaha original non-clip output control function which detects output signal clip due to the over
level input signal and suppress the output signal clip automatically. Also the non-clip output control function can adapt
the output clip caused by power supply voltage down with battery. This is the difference from the traditional AGC (Auto
Gain Control) or ALC (Auto Level Control) circuit. Attack time and release time can be freely set by external resistances
or capacitances.
The independent power-down function for L channel and R channel minimizes consumption current at standby. As for
protection function, overcurrent protection function for speaker output terminal, overtemperatue protection function for
inside of the device, and low supply voltage malfunction preventing function are prepared.
■
Features
·
Maximum output
2.1 W×2ch (VDDP=VDDA=5.0V, RL=4, THD+N=10%)
0.75 W×2ch (VDDP=VDDA=3.6V, RL=8, THD+N=10%)
·
Distortion Rate (THD+N)
0.045 % (VDDP=VDDA=3.6V, RL=8, Po=0.4W, 1kHz)
·
Residual Noise
40Vrms (VDDP=VDDA=3.6V, Av=12dB)
·
Efficiency
84 % (VDDP=VDDA=3.6V, RL=8, Po=600mW)
78 % (VDDP=VDDA=3.6V, RL=8, Po=100mW)
·
S/N Ratio
95dB (VDDP=VDDA=3.6V, Av=12dB)
·
Channel separation
95dB (VDDP=VDDA=3.6V, RL=8, Av=18dB, 1kHz)
·
Over-current Protection function
·
Thermal Protection function
·
Low voltage Malfunction Prevention function
·2ch independent power-down control function
·
Power-down High speed Recovery function
·
Package
Lead-free 16-ball WLCSP (YDA144B-PZ)
Lead-free 20-pin QFN (YDA144B-QZ)
相关PDF资料 |
PDF描述 |
|---|---|
| YDA144B-QZ | 2.1 W, 2 CHANNEL, AUDIO AMPLIFIER, QCC20 |
| YDA145-PZ | 2.1 W, 1 CHANNEL, AUDIO AMPLIFIER, PBGA9 |
| YDA146 | 30 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| YDA147 | 20 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP48 |
| YDA148 | 15 W, 2 CHANNEL, AUDIO AMPLIFIER, PQCC32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YDA148-QZ | 制造商:Yamaha Corp Of America 功能描述:STEREO 5W - 15W DIGITAL AUDIO POWER AMPLIFIER, QFN32 |
| YDA1502 | 功能描述:DIPOL 150-174MHZ 2 RoHS:是 类别:RF/IF 和 RFID >> RF 天线 系列:* 标准包装:1 系列:* |
| YDA1504 | 功能描述:DIPOL 150-174MHZ 4 RoHS:是 类别:RF/IF 和 RFID >> RF 天线 系列:* 标准包装:1 系列:* |
| YDA160 | 制造商:Power-One 功能描述: |
| YDA2002 | 功能描述:DIPOL 200-225MHZ 2 RoHS:是 类别:RF/IF 和 RFID >> RF 天线 系列:* 标准包装:1 系列:* |
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