All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM48557.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM48557 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM48557TLEVAL
| LM48557TLEVAL Demo Board | Full production
|
| CALL | N/A |
 Description:
The LM48557 is a single supply, mono, ceramic speaker driver with an integrated charge-pump, designed for portable devices, such as cell phones and portable media players, where board space is at a premium. The LM48557 charge pump allows the device to deliver 5.8VRMS from a single 4.2V supply.
The LM48557 features high power supply rejection ratio (PSRR), 80dB at 217Hz, allowing the device to operate in noisy environments without additional power supply conditioning. Flexible power supply requirements allow operation from 2.7V to 4.5V. The LM48557 features an active low reset input that reverts the device to its default state. Additionally, the LM48557 features a 36-step I2C volume control and mute function. The low power Shutdown mode reduces supply current consumption to 0.01?
This LM48557TLEVAL is an evaluation kit designed to ease the evaluation effort during the development of a circuit using the LM48557TLEVAL. Instructions to use the L48557TLEVAL demo board are contained in the LM48557 Data Sheet.
Features:
- Integrated Charge Pump
- Bridge-tied Load Output
- Differential Input
- High PSRR
- I2C Volume and Mode Control
- Reset Input
- Advanced Click-and-Pop Suppression
- Low Supply Current
- Minimum external components
- Micro-power shutdown
- Available in space-saving 16-bump ?D package
Applications:
- Mobile Phones and Multimedia Terminals
- Smart Phones
- PDAs, Internet Appliances and Portable Gaming
- Portable DVD Players
- Digital Still Cameras/Camcorders
- Portable Notebooks, Laptops
Contents:
- A fully assembled Audio Power Amplifier evaluation board
- A fully assembled USB I2C daughter card
- 1 USB I2C Cable
The user interface software can be found on the Digital Audio Evaluation Boards support page
Resources:
|
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers
(
CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(
CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
Lead free products are RoHS compliant.
Lead Free product status is available through the search tool located
here
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM48557.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM48557 is located at RoHS Status.
