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MAX9424EGJ Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX9424EGJ Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 11 page General Description The MAX9424–MAX9427 high-speed, low-skew quad PECL-to-ECL translators are designed for high-speed data and clock driver applications. These devices feature an ultra-low 0.24ps(RMS) random jitter and channel-to- channel skew is less than 90ps in asynchronous mode. The four channels can be operated synchronously with an external clock, or in asynchronous mode determined by the state of the SEL input. An enable input provides the ability to force all the outputs to a differential low state. The parts differ from one another by their input and out- put termination options. The input options are an open input or an internal differential 100 Ω termination. The output options are an open-emitter output or a series 50 Ω termination. See Ordering Information. The MAX9424–MAX9427 operate from a positive voltage supply of +2.375V to +5.5V, and a negative supply volt- age of -2.375V to -5.5V and operate across the extended temperature range of -40°C to +85°C. They are offered in 32-pin 5mm x 5mm TQFP and space-saving 5mm x 5mm QFN packages. Applications Data and Clock Driver and Buffer Central Office Backplane Clock Distribution DSLAM Backplane Base Station ATE Features o 0.24ps RMS Added Random Jitter o 10ps Channel-to-Channel Skew in Synchronous Mode o Guaranteed 500mV Differential Output at 3GHz Clock Frequency o 420ps Propagation Delay in Asynchronous Mode o Functionally Compatible with SK4426 (MAX9424) SK4430 (MAX9425) SK4436 (MAX9426) SK4440 (MAX9427) o Integrated 50Ω Outputs (MAX9425/MAX9427) o Integrated 100Ω Inputs (MAX9426/MAX9427) o Synchronous/Asynchronous Operation Lowest Jitter Quad PECL-to-ECL Differential Translators ________________________________________________________________ Maxim Integrated Products 1 MAX9424 MAX9425 MAX9426 MAX9427 TQFP (5mm x 5mm) TOP VIEW 32 28 29 30 31 25 26 27 10 13 15 14 16 11 12 9 17 18 19 20 21 22 23 OUT1 24 VGG OUT1 VEE VEE OUT2 OUT2 VGG 2 3 4 5 6 7 8 VCC EN CLK SEL 1 VCC SEL CLK EN 17 18 19 20 21 22 23 VGG NOTE: CORNER PINS ARE CONNECTED TO VGG. OUT2 OUT2 VEE VEE OUT1 OUT1 8 7 6 5 4 3 2 VCC EN EN CLK CLK SEL SEL MAX9424 MAX9425 MAX9426 MAX9427 QFN 1 VCC 24 VGG TOP VIEW * * * * Pin Configurations Ordering Information 19-2390; Rev 0; 4/02 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. *Future product—contact factory for availability. PART TEMP RANGE PIN- PACKAGE INPUT (IN_, IN_) OUTPUT (OUT_, OUT_) MAX9424EHJ -40°C to +85°C 32 TQFP Open Open MAX9424EGJ* -40°C to +85°C 32 QFN Open Open MAX9425EHJ -40°C to +85°C 32 TQFP Open 50 Ω MAX9425EGJ* -40°C to +85°C 32 QFN Open 50 Ω MAX9426EHJ -40°C to +85°C 32 TQFP 100 Ω Open MAX9426EGJ* -40°C to +85°C 32 QFN 100 Ω Open MAX9427EHJ -40°C to +85°C 32 TQFP 100 Ω 50 Ω MAX9427EGJ* -40°C to +85°C 32 QFN 100 Ω 50 Ω |
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