LM4947TL/NOPB National Semiconductor, LM4947TL/NOPB Datasheet - Page 32

• Manufacturer Part Number: LM4947TL/NOPB
• Description: IC AUDIO SUBSYSTM 1.19W D 25USMD
• Manufacturer: National Semiconductor
• Series: Boomer®r
• Type: Class Dr

Specifications of LM4947TL/NOPB

• Output Type: 1-Channel (Mono) with Stereo Headphones
• Max Output Power X Channels @ Load: 1.19W x 1 @ 8 Ohm; 87mW x 2 @ 32 Ohm
• Voltage - Supply: 2.7 V ~ 5.5 V
• Features: 3D, Depop, Differential Inputs, I²C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
• Mounting Type: Surface Mount
• Package / Case: 25-MicroSMD
• Amplifier Class: D
• No. Of Channels: 3
• Output Power: 2.5W
• Supply Voltage Range: 2.7V To 5.5V
• Load Impedance: 32ohm
• Operating Temperature Range: -40°C To +85°C
• Amplifier Case Style: SMD
• Rohs Compliant: Yes
• For Use With: LM4947TLEVAL - BOARD EVALUATION LM4947TL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM4947TLTR

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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