CDCLVD2104 Low Jitter, Dual 1:4 Universal-to-LVDS Buffer | TI.com

CDCLVD2104
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Low Jitter, Dual 1:4 Universal-to-LVDS Buffer

Low Jitter, Dual 1:4 Universal-to-LVDS Buffer - CDCLVD2104
Datasheet
 

Recommended alternative parts

  • LMK00301  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device.   Ultra low additive jitter,1:10 Universal Differential Buffer that can support LVDS

Description

The CDCLVD2104 clock buffer distributes two clock inputs (IN0, IN1) to a total of 8 pairs of differential LVDS clock outputs (OUT0, OUT7). Each buffer block consists of one input and 4 LVDS outputs. The inputs can either be LVDS, LVPECL, or LVCMOS.

The CDCLVD2104 is specifically designed for driving 50- transmission lines. If the input is in single ended mode, the appropriate bias voltage (VAC_REF) should be applied to the unused negative input pin.

Using the control pin (EN), outputs can be either disabled or enabled. If the EN pin is left open two buffers with all outputs are enabled, if switched to a logical "0" both buffers with all outputs are disabled (static logical “0”), if switched to a logical "1", one buffer with four outputs is disabled and another buffer with four outputs is enabled. The part supports a fail safe function. It incorporates an input hysteresis, which prevents random oscillation of the outputs in absence of an input signal.

The device operates in 2.5V supply environment and is characterized from –40°C to 85°C (ambient temperature). The CDCLVD2104 is packaged in small 28-pin, 5-mm × 5-mm QFN package.

Features

  • Dual 1:4 Differential Buffer
  • Low Additive Jitter <300 fs, RMS in
    10 kHz to 20 MHz
  • Low Within Bank Output Skew of 35ps (Max)
  • Universal Inputs Accept LVDS, LVPECL, LVCMOS
  • One Input Dedicated for Four Output Buffers
  • 8 LVDS Outputs, ANSI EIA/TIA-644A Standard Compatible
  • Clock Frequency up to 800 MHz
  • 2.375–2.625V Device Power Supply
  • LVDS Reference Voltage, VAC_REF, Available for Capacitive Coupled Inputs
  • Industrial Temperature Range –40°C to 85°C
  • Packaged in 5mm × 5mm 28-Pin QFN (RHD)
  • ESD Protection Exceeds 3 kV HBM, 1 kV CDM
  • APPLICATIONS
    • Telecommunications/Networking
    • Medical Imaging
    • Test and Measurement Equipment
    • Wireless Communications
    • General Purpose Clocking

Design with CDCLVD2104

Frequency Number of Outputs
 MHz
Output Format

Parametrics

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Part number Order Function Additive RMS jitter (Typ) (fs) Output frequency (Max) (MHz) Number of outputs VCC out (V) VCC core (V) Output skew (ps) Features Operating temperature range (C) Rating Output type Package Group Package size: mm2:W x L (PKG) Input type
CDCLVD2104 Order now Differential     171     800     8     2.5     2.5     35     Dual 1:4 fanout
Universal inputs
Output enable control    
-40 to 85     Catalog     LVDS     VQFN | 28     28VQFN: 25 mm2: 5 x 5 (VQFN | 28)     LVCMOS
LVDS
LVPECL    
CDCLVD110A Order now Differential     111     1100     10     2.5     2.5       1:10 fanout
Individual output enable control    
-40 to 85     Catalog     LVDS     LQFP | 32
VQFN | 32    
32LQFP: 49 mm2: 7 x 7 (LQFP | 32)
32VQFN: 25 mm2: 5 x 5 (VQFN | 32)    
LVDS    
CDCLVD1204 Order now Differential     171     800     4     2.5     2.5     20     2:4 fanout
Universal inputs    
-40 to 85     Catalog     LVDS     VQFN | 16     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)     LVCMOS
LVDS
LVPECL    
CDCLVD1208 Order now Differential     171     800     8     2.5     2.5     45     2:8 fanout
Universal inputs    
-40 to 85     Catalog     LVDS     VQFN | 28     28VQFN: 25 mm2: 5 x 5 (VQFN | 28)     LVCMOS
LVDS
LVPECL    
CDCLVD1212 Order now Differential     171     800     12     2.5     2.5     35     2:12 fanout
Universal inputs    
-40 to 85     Catalog     LVDS     VQFN | 40     40VQFN: 36 mm2: 6 x 6 (VQFN | 40)     LVCMOS
LVDS
LVPECL    
CDCLVD1213 Order now Differential     171     800     4     2.5     2.5     20     1:4 fanout
Selectable divider
Universal inputs    
-40 to 85     Catalog     LVDS     VQFN | 16     16VQFN: 9 mm2: 3 x 3 (VQFN | 16)     LVCMOS
LVDS
LVPECL    
CDCLVD1216 Order now Differential     171     800     16     2.5