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Description
The U6225B is a single chip PLL for SAT-TV tuners. It contains on one chip all functions required for PLL control of a VCO. This IC also contains a high frequency prescaler and can handle frequencies up to 2.9 GHz. The U6225B has a fixed reference divider of 512, while the U6223B has a programmable 256/ 512/ 1024 reference divider.
Specifications and features
● 2.9 GHz divide-by-16 prescaler integrated
● Universal bus: I2C-bus or 3-wire-bus
● I2C-bus software compatible to U6204B
● 3-wire-bus software compatible to U6358B (19 bit)
● I2C-bus mode: 5 switching outputs (open collector), 4 addresses selectable at pin 10 for multituner application
● 3-wire-bus mode: 4 switching outputs (open collector), Locksignal output (open collector)
● Low power consumption (typical 5 V / 23 mA)
● Electrostatic protection according to MIL-STD 883Application Scenarios
● Universal bus for 3-wire bus applications and I2C-bus applications
● High input frequency of 2.9 GHz applicable for all TV-satellitesComparison
The U6225B has the advantage of being a single chip with all functions required for PLL control of a VCO. It also has a high input frequency of 2.9 GHz, making it applicable for all TV-satellites. However, it has a fixed reference divider of 512, unlike the U6223B which has a programmable reference divider.
Advantages● Only one device for 3-wire bus applications and I2C-bus applications necessary (universal bus)
● High input frequency of 2.9 GHz applicable for all TV-satellitesDisadvantages● Fixed reference divider of 512
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Datasheet
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- Datasheet: Download U6225B
- Chipdatas Part: CD92-U6225B
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- Last Updated: 2024/06/03 07:49 +0800
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