MFG:ON Semiconductor Category:Integrated Circuits (ICs) Package Cooled:SOP-20 D/C:07+
MC100LVEL38DW, MC100LVEL39, MC100LVEL39DW Datasheet download
Category: Integrated Circuits (ICs)
MFG: ON Semiconductor
Package Cooled: SOP-20
D/C: 07+
Description: IC CLOCK GEN ECL 2/4 4/6 20SOIC
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PDF/DataSheet Download
Datasheet: MC100LVEL38DW
File Size: 131085 KB
Manufacturer: MOTOROLA [Motorola, Inc]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: MC100LVEL39
File Size: 130096 KB
Manufacturer: ONSEMI [ON Semiconductor]
Download : Click here to Download
PDF/DataSheet Download
Datasheet: MC100LVEL39DW
File Size: 130096 KB
Manufacturer: MOTOROLA [Motorola, Inc]
Download : Click here to Download
| Technical/Catalog Information | MC100LVEL38DW |
| Vendor | ON Semiconductor |
| Category | Integrated Circuits (ICs) |
| Type | Clock Generator |
| Voltage - Supply | 3 V ~ 3.8 V |
| Number of Outputs | 4 |
| Input | ECL |
| Output | ECL |
| Frequency-Max | 1GHz |
| Package / Case | 20-SOIC (7.5mm Width) |
| Packaging | Tube |
| Operating Temperature | -40°C ~ 85°C |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MC100LVEL38DW MC100LVEL38DW MC100LVEL38DWOS ND MC100LVEL38DWOSND MC100LVEL38DWOS |
The MC100LVEL39 is a low skew ÷2/4, ÷4/6 clock generation chip designed explicitly for low skew clock generation applications. The MC100EL39 is pin and functionally equivalent to the MC100LVEL39 but is specified for operation at the standard 100K ECL voltage supply. The internal dividers are synchronous to each other, therefore, the common output edges are all precisely aligned. The device can be driven by either a differential or single-ended LVECL or, if positive power supplies are used, LVPECL input signal. In addition, by using the VBB output, a sinusoidal source can be AC coupled into the device (see Interfacing section of the ECLin PSE Data Book DL140/D). If a single-ended input is
to be used, the VBB output should be connected to the CLK input and bypassed to ground via a 0.01mF capacitor. The VBB output is designed to act as the switching reference for the input of the LVEL39 under single-ended input conditions, as a result, this pin can only source/sink up to 0.5mA of current.
The common enable (EN ) is synchronous so that the internal dividers will only be enabled/disabled when the internal clock is already in the LOW state. This avoids any chance of generating a runt clock pulse on the internal clock when the device is enabled/disabled as can happen with an asynchronous control. An internal runt pulse could lead to losing synchronization between the internal divider stages. The internal enable flip-flop is clocked on the falling edge of the input clock, therefore, all associated specification limits are referenced to the negative edge of the clock input.
Upon startup, the internal flip-flops will attain a random state; therefore, for systems which utilize multiple LVEL39s, the master reset (MR) input must be asserted to ensure synchronization. For systems which only use one LVEL39, the MR pin need not be exercised as the internal divider design ensures synchronization between the ÷2/4 and the ÷4/6 outputs of a single device.
| Technical/Catalog Information | MC100LVEL39DW |
| Vendor | ON Semiconductor |
| Category | Integrated Circuits (ICs) |
| Type | Clock Generator |
| Voltage - Supply | 3 V ~ 3.8 V |
| Number of Outputs | 4 |
| Input | ECL |
| Output | ECL |
| Frequency-Max | 1GHz |
| Package / Case | 20-SOIC (7.5mm Width) |
| Packaging | Tube |
| Operating Temperature | -40°C ~ 85°C |
| Lead Free Status | Contains Lead |
| RoHS Status | RoHS Non-Compliant |
| Other Names | MC100LVEL39DW MC100LVEL39DW MC100LVEL39DWOS ND MC100LVEL39DWOSND MC100LVEL39DWOS |
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