LM4947TL National Semiconductor, LM4947TL Datasheet - Page 32

• Manufacturer Part Number: LM4947TL
• Manufacturer: National Semiconductor

Specifications of LM4947TL

• Operational Class: Class-D
• Audio Amplifier Output Configuration: 1-Channel Mono/2-Channel Stereo
• Audio Amplifier Function: Headphone/Speaker
• Single Supply Voltage (typ): Not RequiredV
• Dual Supply Voltage (typ): 3/5V
• Power Supply Requirement: Triple
• Rail/rail I/o Type: No
• Power Supply Rejection Ratio: 76dB
• Single Supply Voltage (min): Not RequiredV
• Single Supply Voltage (max): Not RequiredV
• Dual Supply Voltage (min): 2.2/2.7V
• Dual Supply Voltage (max): 5.5V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 25
• Package Type: uSMD
• Lead Free Status / Rohs Status: Not Compliant

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Revision History
Rev
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
06/16/06
06/19/06
06/22/06
07/18/06
08/29/06
10/18/06
03/02/07
03/02/07
09/06/07
11/09/07
Date
Initial release.
Changed the Class D Efficiency (n) on Typical limit (from 79 to 86) on the
5V specification table.
Added more Typ Perf curves.
Replaced some of the curves.
Text edits.
Edited micro SMD pkg drawing, Figure 1, and Figure 2.
Changed I
table.
Removed CMRR SE condition and changed typical values for CMRR BTL
on 3.3V and 5.0V specification table.
Changed Mute Attenuation typical value on 5.0V specification table.
Edited the 3.3V and 5V EC tables.
Composed (CONFIDENTIAL) D/S for customer (SAMSUNG).
Edited Table 4.
Text edits.
32
DDQ
typical and limit values on the 3.3V and 5.0V specification
Description