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The DMW74 (DW74) is a wireless multimedia processor that integrates the TeakLite® DSP and ARM926 cores together with Wi-Fi functionality into a baseband chip. As a result, the DMW74 not only enables implementation of an array of products, but also serves as a flexible platform for the development of a wide variety of solutions. |
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The DMW74 is part of DSP Group®'s line of solutions utilized in the following applications:
- Infotainment center
- Portable multimedia DECT/Wi-Fi base station with Wi-Fi backhaul and Linux OS support
- Internet radio
- Wireless digital picture frame (DPF)
- Wi-Fi VoIP phone
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Processor
- ARM926EJ-S™ @ 240MHz core
- 16-bit Teaklite™ DSP core for voice/audio processing functions at speeds at up to 160MHz
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- 8 memory banks: SSMC, ROM, SRAM, and SDRAM
- Programmable 16/32-bit data bus width for each bank
- Little/big Endian support
- Self-refresh mode in SDRAM for power down mode
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External
- USB 2.0 HS OTG, USB 2.0 FS device
- SD/MMC/MS
- MII
- SPI
- Keypad
Memory
- SDRAM, NOR Flash, NAND Flash
Other
- IIC bus, IIS bus
- Up to 15 external interrupt ports
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Boot Options
- ROM, NAND Flash, USB, SPI
Clock
- Power mode: normal, slow, stop and sleep. Different clock domains for inter-application flexibility
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STN LCD
- 4-bit single scan, 8-bit single scan
- Up to SVGA screen size
- Monochrome mode, 4 gray levels, 16 gray levels, 256 colors, and 65K colors
TFT LCD
- Up to SVGA screen size
- 1, 2, 4 or 8 bpp palette color, 16 non-palette, 16M color TFT at 24 bpp
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- Dual band 2.4GHz and 5GHz
- IEEE 802.11a/b/g/e
- WMM, WMM-PS (increased battery life), WEP, WPA, WPA2 and WPS
- MRC (increased range)
DECT
- DECT (1.7-1.9GHz)
- TDMA
- Multi-line
- Multi-handset
- GAP compliance
- CAT-iq
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JPEG Encoder/Decoder
- Support encoder/decoder (at 80M pixel/sec)
- HW support for image scaling and OSD mixer
Narrowband and Wideband Vocoders
- G.711, G.723.1, G.729, G.729a, G.722
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Product Graphics
Block Diagram
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