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MD563X-HaM
PCI 56K V.90 Host Accelerated Modem (HaM) Chip Set
The software upgradable MD563X-HaM chipset and reference design is targeted at modem and computer manufacturers. This new product is a leap forward in technology, performance and cost savings. The MD563X-HaM is a Host Accelerated Modem (HaM) solution that combines and optimizes the best features from software and hardware modems. This unique hybrid delivers superior performance and is cost competitive with software modems--without the corresponding performance and patent issues.
MD563X-HaM System Block Diagram

Merges benefits from software and hardware modems
Uses host's CPU with minimal performance degradation
Distributes functions optimally between CPU and DSP
Eliminates software modem patent issues
Cost Savings
- CPU eliminates need for controller chip
- Smaller DSP chip
- Reduced board size
- Competes with software modems
- Superior price/performance ratio
Data modulation
- Data rates up to 56 kbps*
- ITU-V.90 56K compliant
- ITU-T V.34 (33,600 to 2,400 kbps)
- ITU-T V.32 bis, V.23, V.22 bis, V.21
- Bell® 212A and 103
- Error correction: ITU V.42 and MNP® 2–4
- Data compression: ITU V.42 bis and MNP® 5
Fax modulation
- ITU-T V.17, V.29 to 14,400 kbps
- Fax Class 1 commands
PCI
PC telephony
- International telephony support
- Voice compression: ADPCM, linear, and CL1
- 4800, 7200, 8000, 9600, and 11025 samples/sec.
- Full-duplex, echo-cancelled digital speakerphone
- Telephone emulation for headset applications
- Voice IS-101 commands
Power requirements
- 3.3-V DSP
- Automatic sleep and wake-up modes
- ACPI (advanced configuration power interface)
Packaging
- DSP: 100-pin LQFP
- SAFE: 44-pin LQFP
Linux Drivers (when released)
Exceeds Microsoft® PC 98 requirements
Microsoft® Windows® TAPI-compliant
Industry-standard AT command-driven
*maximum speed allowed by the FCC is 53.333 kbps. |