Modem ICs

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DYMD1724T11VCB
Intel
V.92 MODEM ANLG FRONT END 44LQFP
Quantity: 21
Ship Date: 7-12 working days
1+ $1.625
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x $1.625
Ext. Price: $1.62
MOQ: 1
Mult: 1
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N89026
Intel
4.75V 5.25V V.21,V.22,Bell 103,Bell 212A 2.4kbaud PLCC-68 SMD mount
Quantity: 956
Ship Date: 9-13 working days
93+
1+ $7.0927
25+ $6.7996
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100+ $6.3893
300+ $6.3306
500+ $6.272
1000+ $6.0962
5000+ $6.0962
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Ext. Price: $127.66
MOQ: 18
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D2911A1
Intel
Quantity: 867
Ship Date: 9-13 working days
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300+ $2.5966
500+ $2.5726
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5000+ $2.5004
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x $2.7889
Ext. Price: $122.71
MOQ: 44
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N89027
Intel
Quantity: 965
Ship Date: 9-13 working days
95+
1+ $7.0927
25+ $6.7996
50+ $6.5065
100+ $6.3893
300+ $6.3306
500+ $6.272
1000+ $6.0962
5000+ $6.0962
- +
x $7.0927
Ext. Price: $127.66
MOQ: 18
Mult: 1
SPQ: 1
P89027
Intel
Quantity: 748
Ship Date: 9-13 working days
95+
1+ $21.6255
25+ $20.7319
50+ $19.8383
100+ $19.4809
300+ $19.3021
500+ $19.1234
1000+ $18.5872
5000+ $18.5872
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x $21.6255
Ext. Price: $129.75
MOQ: 6
Mult: 1
SPQ: 1

Modem ICs

Modems, short for "modulators-demodulators," are devices that enable the transmission of digital data over analog communication channels, such as telephone lines or radio waves. They play a crucial role in bridging the gap between digital devices and analog transmission lines.

Definition:
A modem is an electronic device that converts digital signals from a computer or other digital device into analog signals for transmission over long distances. At the receiving end, another modem converts the analog signals back into digital signals for the destination device to understand.

Function:
1. Modulation: The process of converting digital data into analog signals suitable for transmission over analog networks.
2. Demodulation: The reverse process, where the analog signals are converted back into digital data for the receiving device.
3. Signal Amplification: Strengthening the signal to ensure it can travel long distances without significant degradation.
4. Error Correction: Implementing protocols to detect and correct errors that may occur during transmission.

Applications:
1. Internet Access: Dial-up modems were once widely used for connecting to the internet via telephone lines.
2. Wireless Communication: Mobile phones use modems to connect to cellular networks for voice and data services.
3. Communication: modems facilitate data transmission between ground stations and satellites.
4. Home Networking: Modem-router combinations are used to provide internet access to multiple devices within a home network.

Selection Criteria:
1. Speed: The data transfer rate, measured in bits per second (bps), is a key factor, with higher speeds allowing for faster internet access.
2. Compatibility: Ensure the modem is compatible with the user's internet service provider (ISP) and the type of connection (DSL, cable, fiber, etc.).
3. Protocol Support: Check for support of necessary protocols and standards (e.g., V.92 for dial-up, DOCSIS for cable, or G.fast for DSL).
4. Error Correction: Look for modems with robust error correction capabilities to minimize data loss.
5. Security Features: Some modems come with built-in firewalls and security features to protect against cyber threats.
6. Price and Reliability: Consider the cost and the reputation of the manufacturer for reliability and customer support.

In summary, modems are essential for digital communication over analog networks. They convert data into a form that can be transmitted over long distances and then convert it back for the receiving device to interpret. When choosing a modem, consider factors such as speed, compatibility, protocol support, error correction, security features, and cost.
Please refer to the product rule book for details.