ADCLK946 Six LVPECL Outputs, SiGe Clock Fanout Buffer
The ADCLK946 is an ultrafast clock fanout buffer fabricated on the Analog Devices, Inc., proprietary XFCB3 silicon germanium (SiGe) bipolar process. This device is designed for high speed applications requiring low jitter.
Low jitter clock distribution
Clock and data signal restoration
Level translation
Wireless communications
Wired communications
Medical and industrial imaging
ATE and high performance instrumentation
The device has a differential input equipped with center-tapped, differential, 100 Ω on-chip termination resistors. The input accepts dc-coupled LVPECL, CML, 3.3 V CMOS (single ended), and ac-coupled 1.8 V CMOS, LVDS, and LVPECL inputs. A VREF pin is available for biasing ac-coupled inputs.
The ADCLK946 features six full-swing emitter-coupled logic (ECL) output drivers. For LVPECL (positive ECL) operation, bias VCC to the positive supply and VEE to ground. For ECL operation, bias VCC to ground and VEE to the negative supply.
The ECL output stages are designed to directly drive 800 mV each side into 50 Ω terminated to VCC − 2 V for a total differen-tial output swing of 1.6 V.
The ADCLK946 is available in a 24-lead LFCSP and is specified for operation over the standard industrial temperature range of −40°C to +85°C.
Features and Benefits4.8 GHz operating frequency75 fs rms broadband random jitterOn-chip input terminations3.3 V power supply | ADCLK946 IBIS Model
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Data Sheets
User Guides
Frequently Asked Questions
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
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| ADCLK946BCPZ Production | 24 ld LFCSP (4x4mm w/2.30mm EP) | OTH 490 | -40 to 85C | 4.88 | 4.15 | Y |
| ADCLK946BCPZ-REEL7 Production | 24 ld LFCSP (4x4mm w/2.30mm EP) | REEL 1500 | -40 to 85C | 4.88 | 4.15 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
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| ADCLK946/PCBZ | Evaluation Board | 190 | Y |
Reference Materials
