SCAS871H February   2009  – January 2016 CDCM61004

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (Continued)
  6. 6 Pin Configuration and Functions
    1. 6.1 Pin Characteristics
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Typical Output Phase Noise CharacteristicsCorrected units for tRJIT (RMS phase jitter); changed to fs, RMS from ps, RMS
    7. 7.7  Typical Output Jitter Characteristics
    8. 7.8  Crystal Characteristics
    9. 7.9  Dissipation Ratings
    10. 7.10 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Phase-Locked Loop (PLL)
      2. 9.3.2  Configuring the PLL
      3. 9.3.3  Crystal Input Interface
      4. 9.3.4  Phase Frequency Detector (PFD)
      5. 9.3.5  Charge Pump (CP)
      6. 9.3.6  On-Chip PLL Loop Filter
      7. 9.3.7  Prescaler Divider and Feedback Divider
      8. 9.3.8  On-Chip VCO
      9. 9.3.9  LVCMOS Input Interface
      10. 9.3.10 Output Divider
      11. 9.3.11 Output Buffer
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Start-Up Time Estimation
      2. 10.1.2 Output Termination
      3. 10.1.3 LVPECL Termination
      4. 10.1.4 LVDS Termination
      5. 10.1.5 LVCMOS Termination
      6. 10.1.6 Interfacing Between LVPECL and HCSL
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Device Selection
          1. 10.2.2.1.1 Calculation Using LCM
        2. 10.2.2.2 Device Configuration
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
    1. 11.1 Power Considerations
    2. 11.2 Thermal Management
    3. 11.3 Power-Supply Filtering
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Community Resources
    3. 13.3 Trademarks
    4. 13.4 Electrostatic Discharge Caution
    5. 13.5 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

6 Pin Configuration and Functions

RHB Package
32-Pin VQFN
Top View
CDCM61004 po_rhb32_cas871.gif

Pin Functions

PIN TYPE DIRECTION(1) DESCRIPTION
NAME NO.
CE 7 Input Pullup Chip enable control pin (see Table 7)
GND1 22 Ground — Additional ground for device. (GND1 shorted on-chip to GND)
GND Pad Ground — Ground is on thermal pad. See Thermal Management
NC 8, 24 — — No connection
OD2, OD1, OD0 15, 14, 13 Input Pullup Output divider control pins (see Table 5)
OS1, OS0 10, 11 Input Pullup Output type select control pin (see Table 6)
OSC_OUT 23 Output — Bypass LVCMOS output
OUTP0, OUTN0 6, 5 Output — Differential output pair or two single-ended outputs
OUTP1, OUTN1 3, 2 Output — Differential output pair or two single-ended outputs
OUTP2, OUTN2 32, 31 Output — Differential output pair or two single-ended outputs
OUTP3, OUTN3 29, 28 Output — Differential output pair or two single-ended outputs
PR1, PR0 26, 25 Input Pullup Prescaler and Feedback divider control pins (see Table 4)
REG_CAP1 19 Output — Capacitor for internal regulator (connect to a 10-μF Y5V capacitor to GND)
REG_CAP2 17 Output — Capacitor for internal regulator (connect to a 10-μF Y5V capacitor to GND)
RSTN 12 Input Pullup Device reset (active low) (see Table 8)
VCC_OUT 1, 4, 27, 30 Power — 3.3-V supply for the output buffers
VCC_PLL1 18 Power — 3.3-V supply for the PLL circuitry
VCC_PLL2 16 Power — 3.3-V supply for the PLL circuitry
VCC_VCO 9 Power — 3.3-V supply for the internal VCO
VCC_IN 20 Power — 3.3-V supply for the input buffers
XIN 21 Input — Parallel resonant crystal or LVCMOS inputs
(1) Pullup refers to internal input resistors; see Pin Characteristics, Pin Characteristics for typical values.

6.1 Pin Characteristics

PARAMETER MIN TYP MAX UNIT
CIN Input capacitance 10 pF
RPULLUP Input pullup resistor 150 kΩ