LM4947TL/NOPB Texas Instruments - Yeehing Electronics

2.2-W, mono, analog input Class-D amp with 87-mW headphone amp & 3D enhancement

Pricing (USD)

Quantity	Unit Price
1 — 99	2.404
100 — 249	2.106
250 — 999	1.477
1,000 +	0.83

The above prices are for reference only.

Specifications

Manufacturer	Texas Instruments
Product Category	Audio Amplifiers
RoHS	Y
Series	LM4947
Product	Audio Subsystems
Class	Class-D
Output Power	87 W
Mounting Style	SMD/SMT
Type	Mono, Stereo
Package / Case	uSMD
Audio - Load Impedance	32 Ohms
THD plus Noise	0.04 %
Supply Voltage - Max	5.5 V
Supply Voltage - Min	2.7 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Packaging	Reel
Description/Function	Headphone/Speaker
Height	0.34 mm
Input Type	Differential
Length	2.52 mm
Output Type	1-Channel Mono, 2-Channel Stereo
Supply Type	Triple
Width	2.25 mm
Brand	Texas Instruments
Number of Channels	1 Channel
CMRR - Common Mode Rejection Ratio	49 dB
Development Kit	LM4947TLEVAL
Dual Supply Voltage	3 V, 5 V
Maximum Dual Supply Voltage	5.5 V
Minimum Dual Supply Voltage	2.2 V, 2.7 V
Operating Supply Current	7.6 mA
Operating Supply Voltage	2.7 V to 5.5 V
Output Signal Type	Differential, Single
Product Type	Audio Amplifiers
PSRR - Power Supply Rejection Ratio	79 dB
Factory Pack Quantity	250
Subcategory	Audio ICs

For more information, please refer to datasheet

Documents

LM4947TL/NOPB Datasheet

More Information

The LM4947 is an audio subsystem capable of efficiently delivering 500mW (Class D operation) of continuous average power into a mono 8Ω bridged-tied load (BTL) with 1% THD+N, 37mW (Class AB operation) power channel of continuous average power into stereo 32Ω single-ended (SE) loads with 1% THD+N, or an output capacitor-less (OCL) configuration with identical specification as the SE configuration, from a 3.3V power supply.