power into an 8鈩?load with less than 0.1% (THD + N).
鈩?/div>
) Protection Cir-
cuitry, places it in a class above discrete and hybrid amplifi-
ers by providing an inherently, dynamically protected Safe
Operating Area (SOA).
SPiKe
Protection means that these
parts are safeguarded at the output against overvoltage, un-
dervoltage, overloads, including thermal runaway and in-
stantaneous temperature peaks.
Each amplifier within the LM4766 has an independent
smooth transition fade-in/out mute that minimizes output
pops. The IC鈥檚 extremely low noise floor at 2 碌V and its ex-
tremely low THD + N value of 0.06% at the rated power
make the LM4766 optimum for high-end stereo TVs or mini-
component systems.
Key Specifications
j
j
THD+N at 1 kHz at 2 x 30W continuous average
output power into 8鈩?
THD+N at 1 kHz at continuous average
output power of 2 x 30W into 8鈩?
0.009% (typ)
0.1% (max)
Features
n
n
n
n
SPiKe Protection
Minimal amount of external components necessary
Quiet fade-in/out mute mode
Non-Isolated 15-lead TO-220 package
Applications
n
High-end stereo TVs
n
Component stereo
n
Compact stereo
Typical Application
Connection Diagram
Plastic Package
DS100928-2
Top View
Non-Isolated Package
Order Number LM4766T
See NS Package Number TA15A
DS100928-1
FIGURE 1. Typical Audio Amplifier Application Circuit
Note:
Numbers in parentheses represent pinout for amplifier B.
*
Optional component dependent upon specific design requirements.
SPiKe
鈩?/div>
Protection and
Overture
鈩?/div>
are trademarks of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS100928
www.national.com
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