9FG1904BK-1LF
ObsoleteDB1900GS-DERATIVE FREQUENCY GEARING CLOCK FOR INTEL CPU, PCIE GEN2 & FULLY BUFFERED DIMM CLOCKS
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9FG1904BK-1LF
ObsoleteDB1900GS-DERATIVE FREQUENCY GEARING CLOCK FOR INTEL CPU, PCIE GEN2 & FULLY BUFFERED DIMM CLOCKS
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Technical Specifications
Parameters and characteristics for this part
| Specification | 9FG1904BK-1LF |
|---|---|
| Differential - Input:Output [custom] | True |
| Differential - Input:Output [custom] | True |
| Frequency - Max [Max] | 400 MHz |
| Input | Clock |
| Main Purpose | PCI Express (PCIe) |
| Mounting Type | Surface Mount |
| Number of Circuits | 1 |
| Operating Temperature [Max] | 70 °C |
| Operating Temperature [Min] | 0 °C |
| Output | Clock |
| Package / Case | 72-VFQFN Exposed Pad |
| PLL | True |
| Ratio - Input:Output | 1:19 |
| Supplier Device Package | 72-VFQFPN (10x10) |
| Voltage - Supply [Max] | 3.465 V |
| Voltage - Supply [Min] | 3.135 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
Description
General part information
9FG1904-1 Series
The IDT9FG1904B-1 follows the Intel DB1900GS Differential Buffer Specification, except for the output groupings. This buffer provides 19 output clocks for CPU Host Bus, PCI-Express, or Fully Buffered DIMM applications. The outputs are configured with two groups. Both groups, DIF_(14:0) and DIF_(18:15) can be equal to or have a gear ratio to the input clock. A differential CPU clock from a CK410B+ main clock generator, such as the IDT932S421, drives the IDT9FG1904B-1. The IDT9FG1904B-1 can provide outputs up to 400MHz.
Documents
Technical documentation and resources