Overview
The LM4985TM is an audio Amplifier made by Texas Instruments in a DSBGA-12 package with 12 pins. -40℃~+85℃ 0.08% 2-Channel 2.3V~5.5V 3mA 77dB Enable/shutdown function、Digitally programmable gain DSBGA-12 Audio Amplifiers ROHS.
PCBKit's library has its KiCad symbol (EasyEDA_Cloud:LM4985TM_NOPB, from EasyEDA) and its footprint (EasyEDA_Cloud:DSBGA-12_L1.6-W1.2-R3-C4-P0.40-BL, from EasyEDA), ready for a KiCad board. JLCPCB lists it (part C4990857).
Symbol
Footprint
Parameters
7- Features
- Digitally programmable gain；Enable/shutdown function
- Operating Temperature
- -40℃~+85℃
- Power Supply Rejection Ratio (PSRR)
- 77dB
- Quiescent Current
- 3mA
- Speaker Channels
- 2-Channel
- Total Harmonic Distortion + Noise (THD+N)
- 0.08%
- Voltage - Supply
- 2.3V~5.5V
Order codes
1- LM4985TM/NOPBLCSC C4990857
Pinout
12| Pin | Name | Type |
|---|---|---|
| A1 | ADR | Unspecified |
| A2 | IN2 | Unspecified |
| A3 | OUT2 | Unspecified |
| B1 | SDA | Unspecified |
| B2 | BYPASS | Unspecified |
| B3 | CNTGND | Unspecified |
| C1 | SCL | Unspecified |
| C2 | GND | Unspecified |
| C3 | VDD | Unspecified |
| D1 | I2CVDD | Unspecified |
| D2 | IN1 | Unspecified |
| D3 | OUT1 | Unspecified |
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Is there a KiCad symbol and footprint for the LM4985TM?
Yes. The symbol is EasyEDA_Cloud:LM4985TM_NOPB and the footprint EasyEDA_Cloud:DSBGA-12_L1.6-W1.2-R3-C4-P0.40-BL, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the LM4985TM?
DSBGA-12, with 12 pins. Its footprint is drawn on this page.
Where is the LM4985TM datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the LM4985TM?
JLCPCB lists it as part C4990857, with 0 in stock; the sellers' links on this page open their listings.
What can replace the LM4985TM?
Parts like it in the library: the LM48861TM by Texas Instruments and the LM48861TMX by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
