Features
- Fully integrated PLL
- Seventeen LVCMOS/LVTTL outputs, 15? typical output impedance
- Selectable crystal oscillator interface or LVCMOS/LVTTL REF_CLK
- Maximum output frequency: 166.67MHz
- Maximum crystal input frequency: 38MHz
- Maximum REF_CLK input frequency: 83.33MHz
- Individual banks with selectable output dividers for generating 33.333MHz, 66.66MHz, 100MHz and 133.333MHz simultaneously
- Separate feedback control for generating PCI / PCI-X frequencies from a 20MHz or 25MHz crystal or 33.333MHz or 66.666MHz reference frequency
- Cycle-to-cycle jitter: 70ps (maximum)
- Period jitter, RMS: 17ps (maximum)
- Output skew: 230ps (maximum)
- Bank skew: 40ps (maximum)
- Static phase offset: 0 ± 150ps (maximum)
- Full 3.3V or 3.3V core, 2.5V multiple output supply modes
- 0°C to 85°C ambient operating temperature
- Available in lead-free RoHS-compliant package
Description
The 8761 is a low voltage, low skew PCI / PCI-X Clock Generator. The 8761 has a selectable REF_CLK or crystal input. The REF_CLK input accepts LVCMOS or LVTTL input levels. The 8761 has a fully integrated PLL along with frequency configurable clock and feedback outputs for multiplying and regenerating clocks with "zero delay". Using a 20MHz or 25MHz crystal or a 33.333MHz or 66.666MHz reference frequency, the 8761 will generate output frequencies of 33.333MHz, 66.666MHz, 100MHz and 133.333MHz simultaneously. The low impedance LVCMOS/LVTTL outputs of the 8761 are designed to drive 50Ω series or parallel terminated transmission lines.
Support Communities
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H8S programming
I am looking for a hardware/software tool to read/write to an H8S/2623 mcu. I realize this chip was discontinued in 2014 but I hope to find a lead to a toolkit. I downloaded the Flash Development toolkit ver21 but have not yet looked at ...
Aug 8, 2017 -
DA14585 - BLE Central and Peripheral Error in code testing
Hi all, I am working on DA14585 Basic Kit. For the application I am building I would be needing to implement both Central and Peripheral appication on DA14585 (individually). Before I implement that, I want to implement BLE Central on one kit and BLE peripheral on another and test the ...
Oct 28, 2020 -
DA14681 Wearable Development Kit
hallo, for a Project company we have ordered this module and we would like to know if you have any detailed information about the implementation of NFC on this module. In the software manual I see "The Wearable DK integrates an NFC module.." and in the hardware manual I see ...
Oct 26, 2020
Support Communities
