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Product Detailed Parameters
- Description:INTEGRATED CIRCUIT
- Series:*
- Package:Tape & Reel (TR)
- Mfr:Asahi Kasei Microdevices/AKM
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- Frequency - Max:-
- Divider/Multiplier:-
- Voltage - Supply:-
- Operating Temperature:-
- Mounting Type:-
- Package / Case:-
- Supplier Device Package:-
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Overview
The AK8135F is a low-power multiclock generator with voltage-controlled frequency synthesizers (VCFS), designed for recorders, DTVs, and set-top boxes. It generates seven distinct clock outputs from a single 24.576MHz crystal input. The device features two VCFS channels allowing ±85ppm typical frequency pulling via external DC voltage inputs (VIN1, VIN2). Key output frequencies include 24.576MHz at CLK1, 24.99972MHz at CLK2, 33.332965MHz at CLK3, and 27.000MHz at REF1-4. It operates on a 3.0V to 3.6V supply with typical current consumption of 24mA.
Feature Summary
- Generates multiple system clocks from one 24.576MHz crystal source
- Built-in dual VCFS with ±85ppm typical pull range for synchronization
- Low jitter performance: 150ps period jitter and 400ps long-term jitter
- Seven configurable clock outputs including reference and system clocks
Applications
- HDD, DVD, BD Recorders
- Digital Television (DTV)
- Set-Top Boxes (STBs)
Procurement Notes
Verify the package type is 30-pin VSOP and confirm the operating temperature range covers -20°C to +85°C. Ensure power supply decoupling capacitors are placed close to each VDD pin as specified in the layout guidelines. Check that the crystal load capacitance matches the design requirements for accurate frequency generation.
Selection Notes
Select this component when a single crystal oscillator must drive multiple subsystems requiring different frequencies. The dual VCFS capability is essential if the system requires fine frequency tuning or synchronization with an external clock source. Verify that the required output frequencies align with the fixed CLK1, CLK2, and CLK3 outputs or the programmable REF outputs.
Part Context
The AK8135F belongs to AKM’s low-power multi-clock generator family. It utilizes CMOS technology and is manufactured in a lead-free 30-pin VSOP package. The device integrates PLL and VCFS circuitry derived from AKM's clock device technology to achieve low jitter and low current consumption.
Replacement Considerations
No public confirmed substitute part numbers are available in the provided documentation.
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