SNLS243H September   2006  – March 2016 DS25MB100

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 CML Inputs and EQ
      2. 8.3.2 Multiplexer and Loopback Control
      3. 8.3.3 CML Drivers and Pre-Emphasis Control
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
    2. 12.2 Community Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
  • NJK|36
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5 Pin Configuration and Functions

NJK Package
36-Pin WQFN
Top View

Pin Functions(2)

PIN TYPE(1) DESCRIPTION
NAME NO.
LINE SIDE HIGH SPEED DIFFERENTIAL IO's
IN+
IN−		 33
34		 I Inverting and noninverting differential inputs at the line side. IN+ and IN− have an internal 50 Ω connected to an internal reference voltage. See Figure 8.
OUT+
OUT−		 30
31		 O Inverting and noninverting differential outputs at the line side. OUT+ and OUT− have an internal 50 Ω connected to VCC. See Figure 7.
SWITCH SIDE HIGH SPEED DIFFERENTIAL IO's
IN0+
IN0−		 6
7		 I Inverting and noninverting differential inputs to the mux at the switch side. IN0+ and IN0− have an internal 50 Ω connected to an internal reference voltage. See Figure 8.
IN1+
IN1−		 25
24		 I Inverting and noninverting differential inputs to the mux at the switch side. IN1+ and IN1− have an internal 50 Ω connected to an internal reference voltage. See Figure 8.
OUT0+
OUT0−		 3
4		 O Inverting and noninverting differential outputs at the switch side. OUT0+ and OUT0− have an internal 50 Ω connected to VCC. See Figure 7.
OUT1+
OUT1−		 22
21		 O Inverting and noninverting differential outputs at the switch side. OUT1+ and OUT1− have an internal 50 Ω connected to VCC. See Figure 7.
CONTROL (3.3-V LVCMOS)
DEL_0
DEL_1		 18
27		 I DEL_0 and DEL_1 select the output pre-emphasis of the line side drivers (OUT±).
DEL_0 and DEL_1 are internally pulled high.
DES_0
DES_1		 10
1		 I DES_0 and DES_1 select the output pre-emphasis of the switch side drivers (OUT0±, OUT1±).
DES_0 and DES_1 are internally pulled high.
EQL 11 I A logic low enables the input equalizer on the line side. EQL is internally pulled high. Default is with EQ disabled.
EQS 36 I A logic low enables the input equalizer on the switch side. EQS is internally pulled high. Default is with EQ disabled.
LB0 28 I A logic low at LB0 enables the internal loopback path from IN0± to OUT0±. LB0 is internally pulled high.
LB1 26 I A logic low at LB1 enables the internal loopback path from IN1± to OUT1±. LB1 is internally pulled high.
MUX 19 I A logic low at MUX selects IN1±. MUX is internally pulled high. Default state for MUX is IN0±.
RSV 17 I Reserve pin to support factory testing. This pin can be left open, or tied to GND, or tied to GND through an external pulldown resistor.
POWER
GND 2, 8, 9, 12, 14, 16, 20, 29, 35 P Ground reference. Each ground pin must be connected to the ground plane through a low inductance path, typically with a via located as close as possible to the landing pad of the GND pin.
GND_DAP GND P DAP is the metal contact at the bottom side, located at the center of the WQFN package. It must be connected to the GND plane with at least 16 via to lower the ground impedance and improve the thermal performance of the package.
VCC 5, 13, 15, 23, 32 P VCC = 3.3 V ± 5%.
Each VCC pin must be connected to the VCC plane through a low inductance path, typically with a via located as close as possible to the landing pad of the VCC pin. It is recommended to have a 0.01-μF or 0.1-μF, X7R, size-0402 bypass capacitor from each VCC pin to ground plane.
(1) I = Input, O = Output, P = Power
(2) All CML Inputs or Outputs must be AC coupled.