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SAMSUNG Proprietary-Contents may change without notice
Circuit Description
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2-5
5. Multi-media processor MA55141
MA55141 is an LSI, which is designed on 3GPP 3G-324M Standard for a video telephone system.
Since protocol software is external,
MA55141 can run with another protocol like H.323 by changing its software.
MA55141 has ARM9 CPU, so supports more various application.
Feature
- Based on 3GPP 3G-324M standard
- Video MPEG-4 (simple profile level1) or H263 (baseline)
- Audio AMR, G723.1, MP3 or AAC (program downloadable)
- Multiplexing H.223 (Level 0, 1, 2, processed by CPU with assistant hardware)
- Control H.245 (Processed all by CPU)
- Built-in 32bit RISC CPU(ARM926EJ) for control. (Max 133MHz, I-cache 16KB, D-cache 8KB, MMU and JAVA
accelerator (Jazelle) included.)
- Built-in 16bit DSP for audio CODEC
- Built-in SD/MMC/Memory Stick I/F
- Video input Rec601/656 YUV = 4:2:2, 8 bit I/F
- Video output Rec601 YUV = 4:2:2(8bit) / RGB 18bit
Built-in Picture-In-Picture Image Displaying Functions
Built-in On Screen Display(OSD) Functions with alpha blending
- Video CODEC
Encoding and decoding : QCIF 40fps, CIF 10fps
Encoding only :
QCIF 68fps, CIF 17fps
Decoding only :
QCIF 96fps, CIF 24fps
Deblocking filter is built-in.
Max output image size :
2032
×
2032
- Program on SDRAM is executable without ROM (optional).
- Power supply
VDDI1=1.425V to 1.65V
(For internal circuit. Please power off during stand-by)
VDDI2=VDDI1
(For internal circuit. Please provide during stand-by)
VDDP0, VDDP1=1.425V to 1.65V
(For internal PLL0 and PLL1)
VDDO, VDDOD=2.7V to 3.0V
(For I/O)
- Max operating frequency
CPU clock = 133MHz
DSP clock = 100MHz
SDRAM clock = 100MHz
Video clock = SDRAM clock/2
6. MIC2211 (U604/U605)
This LDO is the voltage source of Multimedia part. The MIC2211 is a dual-output LDO regulator.
The one of dual is capable of sourcing 150mA, while the another one can supply up to 300mA.
Ideal for battery operated applications, the MIC2211 offers 1% accuracy, extremely low dropout voltage (80mV @
100mA), and extremely low ground current (only 48mA total). Equipped with TTL logic compatible enable pins, the
MIC2211 can be put into a zero-off-mode current state, drawing no current when disabled. Separate enable pins
allow individual control of each output voltage.