LC-26SB25E/S/RU, LC-32SB25E/S/RU, LC-42SB55E/S/RU
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· Over current and thermal protection
· VQFN3x3-8L package
Applications
· Consumer:
STB, DVD, DVD recorder, car audio, LCD TV and monitors
· Industrial:
Chargers, car battery, PLD, PLA, FPGA
· Networking: XDSL, modems, DC-DC modules
· Computer:
Optical storage, hard disk drive, printers, audio/graphic cards
1.4. U351 (HYB18TC256160BF-3S TFBGA-84-55)
Features
The 256-Mbit Double-Data-Rate-Two SDRAM offers the following key features:
· 1.8 V ± 0.1 V Power Supply
· 1.8 V ± 0.1 V (SSTL_18) compatible I/O
· DRAM organizations with 4, 8 and 16 data in/outputs
· Double Data Rate architecture: two data transfers per clock cycle four internal banks for concurrent operation
· Programmable CAS Latency: 3, 4, 5 and 6
· Programmable Burst Length: 4 and 8
· Differential clock inputs (CK and CK)
· Bi-directional, differential data strobes (DQS and DQS) are transmitted / received with data. Edge aligned with read data and center-aligned with write
data.
· DLL aligns DQ and DQS transitions with clock
· DQS can be disabled for single-ended data strobe operation
· Commands entered on each positive clock edge, data and data mask are referenced to both edges of DQS
· Data masks (DM) for write data
· Posted CAS by programmable additive latency for better command and data bus efficiency
· Off-Chip-Driver impedance adjustment (OCD) and On-Die-Termination (ODT) for better signal quality.
· Auto-Precharge operation for read and write bursts
· Auto-Refresh, Self-Refresh and power saving Power-Down modes
· Average Refresh Period 7.8 µs at a T
CASE
lower than 85 °C, 3.9 µs between 85 °C and 95 °C
· Programmable self refresh rate via EMRS2 setting
· Programmable partial array refresh via EMRS2 settings
· DCC enabling via EMRS2 setting
· Full and reduced Strength Data-Output Drivers
· 1K page size
· Packages: PG-TFBGA-84
· RoHS Compliant Products
1
)
· All Speed grades faster than DDR400 comply with DDR400 timing specifications when run at a clock rate of 200 MHz.
1.5. U601 (LM4809MA NOPB SO-8)
General Description
The LM4809 is a dual audio power amplifier capable of delivering 105mW per channel of continuous average power into a 16Ω load with 0.1% (THD+N)
from a 5V power supply.
Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. Since the
LM4809 does not require bootstrap capacitors or snubber networks, it is optimally suited for low-power portable systems.
The unity-gain stable LM4809 can be configured by external gain-setting resistors.
The LM4809 features an externally controlled, active-low, micropower consumption shutdown mode, as well as an internal thermal shutdown protection
mechanism.
Key Specifications
· THD+N at 1kHz at 105mW continuous average power into 16Ω 0.1% (typ)
· THD+N at 1kHz at 70mW continuous average power into 32Ω 0.1% (typ)
· Shutdown Current 0.4µA (typ)
Features
· Active-low shutdown mode
· "Click and Pop" reduction circuitry
· Low shutdown current
· LLP, MSOP, and SO surface mount packaging
· No bootstrap capacitors required
· Unity-gain stable
Applications
· Headphone Amplifier
· Personal Computers
· Microphone Preamplifier
· PDA’s
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