Features: Data
- ITU-T V.90 (56000 to 28000 bps)
- ITU-T V.34 (33600 to 2400 bps)
- ITU-T V.32bis (14400, 12000, 9600, 7200,4800bps)
- ITU-T V.32 (9600, 4800bps)
- ITU-T V.22bis (2400, 1200bps)
- ITU-T V.22 (1200bps)
- ITU-T V.23 (1200/75bps)
- ITU-T V.21 (300bps)
- Bell 212A (1200bps)
- Bell 103 (300bps)
Fax
- ITU-T V.34 (33600 to 2400bps)
- ITU-T V.17 (14400, 12000,9600,7200bps)
- ITU-T V.29 (9600, 7200bps)
- ITU-T V.27ter (4800, 2400bps)
- ITU-T V.21 Channel 2 (300bps)
- Group III, Class 1
- Support ECM mode
- Automatic rate adaptation in V.34 half-duplex mode
Data Error Correction
- MNP Class 4
- ITU-T V.42 LAPM
Data Compression
- MNP Class 5
- ITU-T V.42bis
Voice compression
- 4 bit ADPCM (ITU-T)
- 2, 3 an 4 bit ADPCM (Davicom proprietary)
- 8 Bit PCM
DTE Interface
- DTE speed up to 115200bps
Enhanced "AT" command set and S registers
- TIA/EIA 602, ITU V.25 ter AT command Set
TIA/EIA 602, ITU V.25 ter AT command set
- TIA/EIA 578 Fax Class 1 command Set
-
- TIA/EIA IS-101 Voice command set
Integrated UART 16550 Parallel (ISA/PCI) and Serial (UART) interfaces
- 6, 7 and 8 bit character support
- Even, odd, mark and none parity detection and generation
- 1 and 2 stop bit support
- Auto DTE data speed detection through"AT"
Support FSK Caller identification (Caller ID)
Speakerphone
Selectable world wide call progress tone detection
Enhanced 8032 compatible micro-controller
Power down mode
Access up to 256K bytes external program memory
Access up to 64K bytes external data memory
NVRAM to store two user configurable,selectable profiles with three programmable telephone numbers
32K bytes SRAM built inPinout
Specifications
| Symbol |
Parameter |
Min. |
Max. |
Unit |
Conditions |
| DVCC,AVCC |
Supply Voltage |
-0.3 |
3.6 |
V |
|
| VIN |
DC Input Voltage (VIN) |
-0.5 |
5.5 |
V |
|
| VOUT |
DC Output Voltage(VOUT) |
-0.3 |
3.6 |
V |
|
| Tc |
Case Temperature Range |
0 |
85 |
|
|
| Tstg |
Storage Temperature Rang (Tstg) |
-65 |
150 |
|
|
| LT |
Lead Temp. (TL, Soldering, 10 sec.) |
--- |
220 |
|
|
DescriptionThe DM562AP integrated modem is a two-chipset design that provides a complete solution for state-of-the-art, voice-band Plain Old Telephone Switching (POTS) communication. The modem provides for Data (up to 56,000bps), Fax (up to ban0bps), Voice and Full Duplex Speaker-phone functions to comply with various international standards.
The design of the DM562AP is optimized for desktop personal computer applications, embedded microprocessor applications and Multi-Function peripheral (MFP) FAX application. It provides a low cost, highly reliable, maximum integration, with the minimum amount of support required. The DM562AP modem can operate over a dial-up network (PSTN) or 2 wire leased lines.
The modem of DM562AP integrates auto dial and answer capabilities, asynchronous data transmissions,serial and parallel interfaces, various tone detection schemes and data test modes.
The DM562AP modem reference design is pre-approved for FCC part 68 and provides minimum design cycle time, with minimum cost to insure the maximum amount of success.
The simplified modem system, shown in figure below, illustrates the basic interconnection between the MCU, DSP, AFE and other basic components of a modem. The individual elements of the DM562AP are:
* DM6580 Analog Front End (AFE). 48-pin LQFP package.
* DM6588A ITU-T V.90 integrated Processors with 32K bytes SRAM built in 128-pin QFP package
DM562AP Data Sheet
