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Part Number: LM4890 Hello team,
I have a quick question on the difference between LM4890MM and LM4890MMX.
By the datasheet, it seems the only difference is the reel size and SPQ, and there is no other technical differences. Is this correct?
In TI device…
Part Number: LM4890 Other Parts Discussed in Thread: LM48580 , LM48560 Can LM4890 be used as audio PIEZO driver?
I assume I'd add a series resistor to the speaker (-) connection.
Murata PKLCS1212E4001-R1 is target piezo device.
Thanks, Patrick
Part Number: LM4890 Other Parts Discussed in Thread: LM4889 Hi team, I was looking at the datasheets for the LM4890 and the LM4889 and I can’t see what the difference is between the two parts. Could you tell me about the differences? Sincerely. Kengo…
Part Number: LM4890 Hi Team,
Figure 7 of the LM4890 datasheet shows a 15pF internal capacitor between the negative input and the output of the top amplifier. Is this present in the device? I didn't find any mention of it on the datasheet and neither is…
Part Number: LM4890 Hi team,
The customer is using LM4890. After the input signal is input to the LM4890 device, the customer has to wait for 2~3 seconds, then the LM4890 device
can output the signal. The attach is his schematic and the layout. VDD is…
Part Number: LM4890 Hi,
Our customer use LM4890 to drive a loudspeaker as following schematic, VDD is 3.3V from LDO which can provide 250mA current. But they encounter some problems.
1. Does LM4890 work when SHUTDOWN pin is high or low? In datasheet,…
Part Number: LM4890 Other Parts Discussed in Thread: LM4991 , TPA6211A1 , LM4871 Hi Sir/Madam,
Is LM4890 suitable to pair with door bell chip, RATO RT0302? The gain setting is about 200 but the sound is weak from speaker output.
RATO RT0302 Datasheet…
Other Parts Discussed in Thread: LM4890 , TPA4861 , TPA2001D1 , TPA2005D1 Hi Team,
My customer met an issue with LM4890 when using a GPIO to control its shutdown pin. As it shows below, when a high output generates from GPIO, LM4890 is supposed to turn on…
I wanted to get a better idea of the supply current requirements (peak pulse) for this series amp so I set up a TINA sim of these two devices. Supply is 3.3v with an 8 ohm speaker. By varying Rfb as a volume control i could vary the ouput power from 0…
