FT2705 2*10W双声道功放IC
更新：2015-12-01 10:23 编号：4097231 IP：183.12.167.93 浏览：373次
- 供应商
- 深圳市联盈首锐科技有限公司 商铺
- 认证
- 资质核验：已通过营业执照认证入驻顺企：第11年主体名称：深圳市联盈首锐科技有限公司组织机构代码：440301103161056
- 报价
- 人民币￥.01元每个
- 品牌
- 方泰
- 型号
- FT2705
- 所在地
- 深圳市宝安区西乡街道宝安互联网产业基地海滨新村18栋二楼2012
- 联系电话
- 0755-89814686
- 联系人
- 冯小姐 请说明来自顺企网，优惠更多
- 让卖家联系我
产品详细介绍
GENERAL DESCRIPTION
The
ft2705 is a highly efficient 2X10W stereo
Class-D
audio
power amplifier with automatic level
control
(ALC). It operates with a wide range of supply voltages
from 4.5V to 9V. When powered with 9V supply voltage,
the ft2705 can deliver up to 10.5W per channel into a
pair of 4Ω speakers in bridge-tied-load (BTL)
configuration (stereo mode), or 15W into a single 3Ω
speaker in parallel BTL (PBTL) configuration (mono
mode), with 10% THD+N.
The ft2705 features ALC to constantly monitor and
safeguard the audio outputs against the supply voltage,
preventing
output clipping distortion, excessive power
dissipation, or speaker
over-load. Once an over-level
condition is detected, the ALC lowers the voltage gain
of both audio amplifiers simultaneously to eliminate
output clipping while maintaining a maximum dynamic
range of the audio outputs allowed by the applied
supply voltage. In ALC mode, with 9V supply voltage,
the ft2705 can deliver up to 8W per channel into a pair
of 4Ω speakers in stereo mode, or 11W into a single 3Ω
speaker in mono mode, with 0.5% THD+N.
As a filterless Class-D audio amplifier, the ft2705
features
high efficiency (up to 88%), high PSRR (70dB
at 1kHz), and low EMI emissions, which reduce design
and manufacturing complexities, lower system cost and
PCB space.
In ft2705, comprehensive protection features against
various operating faults ensure its safe and reliable
operation.
FEATURES
Wide supply voltage range from 4.5V to 9V
Automatic level control to eliminate output clipping
Optional mono mode for low-impedance audio
speakers
in PBTL configuration
Maximum
output power in Non-ALC mode
(VDD=9V, 10% THD+N)
15W (3Ω load in mono mode)
10.5W/Ch (4Ω load in stereo mode)
6W/Ch (8Ω load in stereo mode)
ALC output power in ALC Mode
(VDD=9V, 0.5% THD+N)
11W (3Ω load in mono mode)
8W/Ch (4Ω load in stereo mode)
4.5W/Ch (8Ω load in stereo mode)
Low THD+N: 0.05%
(VDD=9V, f=1kHz, 4Ω load, Po=5W)
High
efficiency up to 88%
High PSRR:
70dB at 1kHz
Wide ALC dynamic range: 10dB
Maximum voltage gain: 32dB
Under-voltage lockout protection
Over-temperature shutdown protection
Auto-recovering over-current protection
Available in SOP-16L package
APPLICATIONS
Blue Tooth Speakers
Portable & Plug-In Consumer Electronics
TV/Monitors
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