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SY54020R

Status: In Production

Features:

  • 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with FSI
  • Active-low Enable (/EN) input to disable the outputs
  • DC-to- >3.2Gbps throughput
  • DC-to >2.5GHz Clock throughput
  • <400ps propagation delay (IN-to-Q)
  • <20ps within-device skew
  • <100ps rise/fall times
  • <1psRMS cycle-to-cycle jitter
  • High-speed CML outputs
  • 2.5V ±5% VCC, 1.2V/1.8V/2.5V ±5% VCCOpower supply operation
  • Industrial temperature range: -40°C to +85°C
  • Available in 16-pin (3mm x 3mm) QFN package
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Overview
Documents
Development Environment
RoHS Information
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Device Overview

Summary

The SY54020R is a fully differential, low voltage 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with active-low Enable (/EN) and Fail-Safe Input (FSI). The Enable is synchronous so that the outputs will only be enabled/disabled when they are already in the LOW state. This avoids any chance of generating a runt clock pulse when the device is enabled/disabled as can happen with an asynchronous control. When this device is used as a clock fanout, disabling the downstream clock may reduce system power. FSI is a special circuit designed to sense the amplitude of the input signal and to latch the output when an invalid or no signal is present at the input. The SY54020R can process clock signals up to 2.5 GHz or data patterns up to 3.2Gbps.The differential input includes Micrel’s unique, 3-pin input termination architecture that interfaces to LVPECL, LVDS or CML differential signals as small as 100mV (200mVpp) without any level-shifting or termination resistor networks in the signal path. For AC-coupled input interface applications, an internal voltage reference is provided to bias the VT pin. The outputs are CML, with extremely fast rise/fall times guaranteed to be less than 100ps.The SY54020R operates from a 2.5V ±5% core supply and a 1.2V, 1.8V, or 2.5V ±5% output supply and is guaranteed over the full industrial temperature range (–40°C to +85°C).

Additional Features
    • 1.2V/1.8V/2.5V CML 1:4 Fanout Buffer with FSI
    • Active-low Enable (/EN) input to disable the outputs
    • Guaranteed AC performance over temperature and voltage:
      • DC-to- >3.2Gbps throughput
      • DC-to >2.5GHz Clock throughput
      • <400ps propagation delay (IN-to-Q)
      • <20ps within-device skew
      • <100ps rise/fall times
    • Ultra-low jitter design
      • <1psRMS cycle-to-cycle jitter
    • High-speed CML outputs
    • 2.5V ±5% VCC, 1.2V/1.8V/2.5V ±5% VCCOpower supply operation
    • Industrial temperature range: -40°C to +85°C
    • Available in 16-pin (3mm x 3mm) QFN package
Parametrics
Name
Value
Product Type
Fanout & Buffer and Drivers
Description
1:4
Input
ANY
Output
CML
Supply Voltage
2.5
Max Freq (GHz)
2.5
Max Data (Gbps)
3.2
Max Prop Delay (ps)
320
Icc (mA)
106
Max Within Device Skew (ps)
20
OE
True
RPE
False
FSI
True
Input Mux
False
Input EQ
False
Output Type
CML

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RoHS Information

Part Number
Device Weight (g)
Shipping Weight (grams)
Lead Count
Package Type
Package Width
Solder Composition
JEDEC Indicator
RoHS
China EFUP
SY54020RMG-TR
0.021300
0.801700
16
VQFN
3x3x1.00mm
NiPdAu
e4
SY54020RMG
0.021300
0.050000
16
VQFN
3x3x1.00mm
NiPdAu
e4
To see a complete listing of RoHS data for this device, please Click here
Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.

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