参数资料
| 型号： | ISL99203IIZ-T |
| 厂商： | Intersil |
| 文件页数： | 1/16页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO 5.5W MONO D 20WLCSP |
| 标准包装： | 1 |
| 类型： | D 类 |
| 输出类型： | 1-通道（单声道），带立体声耳机 |
| 在某负载时最大输出功率 x 通道数量： | 1.5W x 1 @ 8 欧姆 |
| 电源电压： | 2.4 V ~ 5.5 V |
| 特点： | 消除爆音，差分输入，I²C，静音，短路和热保护，关机，音量控制 |
| 安装类型： | 表面贴装 |
| 供应商设备封装： | 20-WLCSP |
| 封装/外壳： | 20-UFBGA，WLCSP |
| 包装： | 标准包装 |
| 其它名称： | ISL99203IIZ-TDKR |
1
ISL99203
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2009, 2011. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
High Efficiency Audio Subsystem
ISL99203
The ISL99203 is a fully integrated high efficiency class-D
mono amplifier combined with a capfree headphone
amplifier. It is designed to maximize performance for
mobile phone applications while saving valuable board
space. The application circuit requires a minimum
requirement of external components and operates from a
2.4V to 5.5V input supply.
It is capable of delivering 1.5W of continuous output
power with less than 10% THD+N driving a 8Ω load
from a 5V supply. The speaker amplifier of the
ISL99203 features a high-efficiency, low-noise
modulation scheme. It operates with 85% efficiency at
400mW into 8Ω from 5V supply and has a
signal-to-noise ratio (SNR) that is greater than 95dB.
The architecture of the device allows it to achieve very
low level pop and click. This minimizes voltage glitches
at the output during turn-on and turn-off, thus reducing
audible noise on activation and deactivation. EMI
suppression is achieved by SRC (Slew Rate Control).
The amplifier passes FCC Radiated Emissions Standards
with 24 inches of Cable and achieves greater than 20dB
margin under FCC limits.
The class-D amplifier is designed to operate without a
low pass output filer thus saving cost and board space.
The headphone amplifier is a GND-reference capfree
amplifier. It can output up to 35mW into 32Ω at 3.3V.
Features
Operating Voltage 2.4V to 5.5V
Low Quiescent Current
Low Shutdown Current
Low RFI Susceptibility
Integrated Bypass Switch, I2C Controlled
I2C Control Interface
40 Step Digital Volume Control
3 Independent Volume Channels
10 Distinct Output Modes
Speaker Amp Class-D
Protection for UV/TSD/OC
Independent Gain Boost for Headphone and Speaker
All Digital Interfaces 1.8V Compatible
Exposed Pad at Ground Voltage
Mobile Phones
PDAs
Portable Media Players
Portable Gaming
Total Harmonic Distortion Plus
Noise vs Power (Mono)
Total Harmonic Distortion Plus
Noise vs Power (Headphone)
0.001
0.0100
0.100
1.000
10.000
100.000
0
0.5
1.0
1.5
2.0
OUTPUT POWER (W)
THD
+
N
(%)
VDD= 3V
LOAD= 8Ω + 68H
VDD= 5V
VDD= 3.6V
VDD= 4.2V
0.001
0.010
0.100
1.000
10.000
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08
OUTPUT POWER (W)
TH
D
+N
(%)
1kHz
6kHz
20Hz
VDD = 5V
LOAD = 32Ω
September 15, 2011
FN7547.1
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