SGLS378G March   2008  – October 2017 ADS5463-SP

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Pin Configuration and Functions
  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: ADS5463-RHA
    6. 6.6  Electrical Characteristics: ADS5463-RHA
    7. 6.7  Electrical Characteristics: ADS5463-RHA
    8. 6.8  Electrical Characteristics: ADS5463-SP
    9. 6.9  Electrical Characteristics: ADS5463-SP
    10. 6.10 Electrical Characteristics: ADS5463-SP
    11. 6.11 Timing Requirements
    12. 6.12 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
  8. Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Input Configuration
      2. 8.1.2 Clock Inputs
      3. 8.1.3 Digital Outputs
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Device Support
      1. 11.1.1 Definition of Specifications
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Community Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

Specifications

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)(1)
MIN MAX UNIT
Supply voltage AVDD5 to GND 6 V
AVDD3 to GND 5
DVDD3 to GND 5
AIN, AIN to GND(2) Voltage difference between
pin and ground
AC signal –0.3 (AVDD5 + 0.3) V
DC signal, TJ = 105°C 0.4 4.4
DC signal, TJ = 125°C 1.0 3.8
AIN to AIN(2) Voltage difference between
these pins
AC signal –5.2 5.2 V
DC signal, TJ = 105°C –4 4
DC signal, TJ = 125°C –2.8 2.8
CLK, CLK to GND(2) Voltage difference between
pin and ground
AC signal –0.3 (AVDD5 + 0.3) V
DC signal, TJ = 105°C 0.1 4.7
DC signal, TJ = 125°C 1.1 3.7
CLK to CLK(2) Voltage difference between
these pins
AC signal –3.3 3.3 V
DC signal, TJ = 105°C –3.3 3.3
DC signal, TJ = 125°C –2.6 2.6
Data output to GND(2) LVDS digital outputs –0.3 (DVDD3 + 0.3) V
Characterized case operating temperature, TC –55 125 °C
Maximum junction temperature, TJ 150 °C
Storage temperature, Tstg –65 150 °C
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
Valid when supplies are within recommended operating range.

ESD Ratings

VALUE UNIT
V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) ±3000 V
Charged-device model (CDM), per JEDEC specification JESD22-C101(2) ±1500
JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.
JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process.

Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
SUPPLIES
AVDD5 Analog supply voltage 4.75 5 5.25 V
AVDD3 Analog supply voltage 3 3.3 3.6 V
DVDD3 Output driver supply voltage 3 3.3 3.6 V
ANALOG INPUT
Differential input 2.2 Vpp
VCM Input common mode 2.4 V
DIGITAL OUTPUT
Maximum differential output load 10 pF
CLOCK INPUT
CLK input sample rate (sine wave) 20 500 MSPS
Clock amplitude, differential sine wave 3 Vpp
Clock duty cycle 50%
Tc Operating case temperature –55 125 °C

Thermal Information(2)

THERMAL METRIC(1) ADS5463-SP UNIT
HFG (CFP)
84 PINS
RθJA Junction-to-ambient thermal resistance 17.9 °C/W
RθJC(top) Junction-to-case (top) thermal resistance 3.1 °C/W
RθJB Junction-to-board thermal resistance 6.1 °C/W
ψJT Junction-to-top characterization parameter 1.4 °C/W
ψJB Junction-to-board characterization parameter 5.6 °C/W
RθJC(bot) Junction-to-case (bottom) thermal resistance 0.4 °C/W
For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application report, SPRA953.
This CFP package has built-in vias that electrically and thermally connect the bottom of the die to a pad on the bottom of the package. To efficiently remove heat and provide a low-impedance ground path, a thermal land is required on the surface of the PCB directly underneath the body of the package. During normal surface mount flow solder operations, the heat pad on the underside of the package is soldered to this thermal land creating an efficient thermal path. Normally, the PCB thermal land has a number of thermal vias within it that provide a thermal path to internal copper areas (or to the opposite side of the PCB) that provide for more efficient heat removal. TI typically recommends an 11.9 mm2 board-mount thermal pad. This allows maximum area for thermal dissipation, while keeping leads away from the pad area to prevent solder bridging. A sufficient quantity of thermal/electrical vias must be included to keep the device within recommended operating conditions. This pad must be electrically at ground potential.

Electrical Characteristics: ADS5463-RHA

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clock (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 12 Bits
ANALOG INPUTS
Differential input range 2.2 VPP
Input resistance (dc) Each input to VCM 500 Ω
Input capacitance Each input to ground 2.5 pF
Analog input bandwidth 1000 2000 MHz
INTERNAL REFERENCE VOLTAGE
VREF Reference voltage Full temperature range 2.38 2.4 2.42 V
DYNAMIC ACCURACY
No missing codes Assured
DNL Differential linearity error fIN = 210 MHz Full temperature range –0.98 ±0.95 1.2 LSB
INL Integral linearity error fIN = 210 MHz Full temperature range –3.5 ±1.5 3.5 LSB
Offset error Full temperature range –0.5 0.5 %FS
Offset temperature coefficient 0.0009 %FS/°C
Gain error Full temperature range –5 5 %FS
Gain temperature coefficient –0.02 %FS/°C
POWER SUPPLY
IAVDD5 5 V analog supply current VIN = full scale,
fIN = 300 MHz,
FS = 500 MSPS
Full temperature range 345 mA
IAVDD3 3.3 V analog supply current 148 mA
IDVDD3 3.3 V digital supply current(includes LVDS) 88 mA
Power dissipation 2.450 W

Electrical Characteristics: ADS5463-RHA

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clock (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC AC CHARACTERISTICS
SNR Signal-to-noise ratio fIN = 10 MHz 65.4 dBFS
fIN = 70 MHz 65.3
fIN = 100 MHz TC = 25°C 60.5 65.2
TC = TC,MAX 60.5
TC = TC,MIN 60.5
fIN = 210 MHz TC = 25°C 60 65
TC = TC,MAX 60
TC = TC,MIN 60
fIN = 300 MHz TC = 25°C 58 64.9
TC = TC,MAX 58
TC = TC,MIN 58
fIN = 450 MHz 64.5
fIN = 650 MHz 63.7
fIN = 900 MHz 62.8
fIN = 1.0 GHz 62.2
SFDR Spurious free dynamic range fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64.2
fIN = 100 MHz TC = 25°C 57.9 65
TC = TC,MAX 57.9
TC = TC,MIN 57.9
fIN = 210 MHz TC = 25°C 55.2 64
TC = TC,MAX 55.2
TC = TC,MIN 55.2
fIN = 300 MHz TC = 25°C 51.2 64
TC = TC,MAX 51.2
TC = TC,MIN 51.2
fIN = 450 MHz 64
fIN = 650 MHz 61.6
fIN = 900 MHz 54.5
fIN = 1.0 GHz 51.6
HD2 Second harmonic fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64.2
fIN = 100 MHz TC = 25°C 57.9 65.4
TC = TC,MAX 57.9
TC = TC,MIN 57.9
fIN = 210 MHz TC = 25°C 55.2 64.4
TC = TC,MAX 55.2
TC = TC,MIN 55.2.
fIN = 300 MHz TC = 25°C 51.2 64.3
TC = TC,MAX 51.2
TC = TC,MIN 51.2
fIN = 450 MHz 64.4
fIN = 650 MHz 67.1
fIN = 900 MHz 62.9
fIN = 1.0 GHz 58.6
HD3 Third harmonic fIN = 10 MHz 104 dBc
fIN = 70 MHz 104
fIN = 100 MHz TC = 25°C 64 87
TC = TC,MAX 64
TC = TC,MIN 64
fIN = 210 MHz TC = 25°C 59 85
TC = TC,MAX 59
TC = TC,MIN 59
fIN = 300 MHz TC = 25°C 61.9 76
TC = TC,MAX 61.9
TC = TC,MIN 61.9
fIN = 450 MHz 73.3
fIN = 650 MHz 61.6
fIN = 900 MHz 54.5
fIN = 1.0 GHz 51.6

Electrical Characteristics: ADS5463-RHA

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clock (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC AC CHARACTERISTICS (CONT.)
SINAD Signal-to-noise and distortion fIN = 10 MHz 61.9 dBc
fIN = 70 MHz 62.2
fIN = 100 MHz TC = 25°C 55.9 62
TC = TC,MAX 55.9
TC = TC,MIN 55.9
fIN = 210 MHz TC = 25°C 53.8 62
TC = TC,MAX 53.8
TC = TC,MIN 53.8
fIN = 300 MHz TC = 25°C 50.2 61.9
TC = TC,MAX 50.2
TC = TC,MIN 50.2
fIN = 450 MHz 61.6
fIN = 650 MHz 59.4
fIN = 900 MHz 54.3
fIN = 1.0 GHz 51.4
Worst harmonic/spur (other than HD2 and HD3) fIN = 10 MHz 83.1 dBc
fIN = 70 MHz 80.2
fIN = 100 MHz TC = 25°C 68 81.8
TC = TC,MAX 68
TC = TC,MIN 68
fIN = 210 MHz TC = 25°C 62 77.5
TC = TC,MAX 62
TC = TC,MIN 62
fIN = 300 MHz TC = 25°C 62 78.2
TC = TC,MAX 62
TC = TC,MIN 62
fIN = 450 MHz 80.6
fIN = 650 MHz 80
fIN = 900 MHz 79.4
fIN = 1.0 GHz 77.6
THD Total harmonic distortion fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64
fIN = 100 MHz TC = 25°C 57.8 65.2
TC = TC,MAX 57.8
TC = TC,MIN 57.8
fIN = 210 MHz TC = 25°C 55 64.1
TC = TC,MAX 55
TC = TC,MIN 55
fIN = 300 MHz TC = 25°C 51 63.8
TC = TC,MAX 51
TC = TC,MIN 51
fIN = 450 MHz 63.7
fIN = 650 MHz 60.5
fIN = 900 MHz 53.9
fIN = 1.0 GHz 50.8
ENOB Effective number of bits fIN = 100 MHz TC = 25°C 9 10.1 Bits
TC = TC,MAX 9
TC = TC,MIN 9
fIN = 210 MHz TC = 25°C 8.65 10
TC = TC,MAX 8.65
TC = TC,MIN 8.65
fIN = 300 MHz TC = 25°C 8.05 9.9
TC = TC,MAX 8.05
TC = TC,MIN 8.05
RMS idle-channel noise Inputs tied to common-mode 0.7 LSB
LVDS DIGITAL OUTPUTS
VOD Differential output voltage 247 350 454 mV
VOC Common mode output voltage 1.125 1.375 V

Electrical Characteristics: ADS5463-SP

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clockover operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 12 Bits
ANALOG INPUTS
Differential input range 2.2 VPP
Input resistance (dc) Each input to VCM 500 Ω
Input capacitance Each input to ground 2.5 pF
Analog input bandwidth 1000 2000 MHz
INTERNAL REFERENCE VOLTAGE
VREF Reference voltage Full temperature range 2.38 2.4 2.42 V
DYNAMIC ACCURACY
No missing codes Assured
DNL Differential linearity error fIN = 210 MHz Full temperature range –0.98 ±0.95 1.2 LSB
INL Integral linearity error fIN = 210 MHz Full temperature range –2.9 ±1.5 2.9 LSB
Offset error Full temperature range –0.5 0.5 %FS
Offset temperature coefficient 0.0009 %FS/°C
Gain error Full temperature range –5 5 %FS
Gain temperature coefficient –0.02 %FS/°C
POWER SUPPLY
IAVDD5 5 V analog supply current VIN = full scale,
fIN = 300 MHz,
FS = 500 MSPS
Full temperature range 335 mA
IAVDD3 3.3 V analog supply current 140 mA
IDVDD3 3.3 V digital supply current(includes LVDS) 88 mA
Power dissipation 2.425 W

Electrical Characteristics: ADS5463-SP

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clockover operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC AC CHARACTERISTICS
SNR Signal-to-noise ratio fIN = 10 MHz 65.4 dBFS
fIN = 70 MHz 65.3
fIN = 100 MHz TC = 25°C 64.1 65.2
TC = TC,MAX 62.7
TC = TC,MIN 63.5
fIN = 210 MHz TC = 25°C 63.6 65
TC = TC,MAX 62.4
TC = TC,MIN 63.2
fIN = 300 MHz TC = 25°C 62.7 64.9
TC = TC,MAX 61.3
TC = TC,MIN 61.9
fIN = 450 MHz 64.5
fIN = 650 MHz 63.7
fIN = 900 MHz 62.8
fIN = 1.0 GHz 62.2
SFDR Spurious free dynamic range fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64.2
fIN = 100 MHz TC = 25°C 57.9 65
TC = TC,MAX 58.8
TC = TC,MIN 58.6
fIN = 210 MHz TC = 25°C 55.2 64.0
TC = TC,MAX 56.6
TC = TC,MIN 56.9
fIN = 300 MHz TC = 25°C 54.1 64
TC = TC,MAX 51.3
TC = TC,MIN 56.2
fIN = 450 MHz 64
fIN = 650 MHz 61.6
fIN = 900 MHz 54.5
fIN = 1.0 GHz 51.6
HD2 Second harmonic fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64.2
fIN = 100 MHz TC = 25°C 57.9 65.4
TC = TC,MAX 58.8
TC = TC,MIN 58.6
fIN = 210 MHz TC = 25°C 55.2 64.4
TC = TC,MAX 56.6
TC = TC,MIN 56.9
fIN = 300 MHz TC = 25°C 54.1 64.3
TC = TC,MAX 51.3
TC = TC,MIN 56.2
fIN = 450 MHz 64.4
fIN = 650 MHz 67.1
fIN = 900 MHz 62.9
fIN = 1.0 GHz 58.6
HD3 Third harmonic fIN = 10 MHz 104 dBc
fIN = 70 MHz 104
fIN = 100 MHz TC = 25°C 69 87
TC = TC,MAX 68.5
TC = TC,MIN 65.6
fIN = 210 MHz TC = 25°C 66.7 85
TC = TC,MAX 65.3
TC = TC,MIN 64.1
fIN = 300 MHz TC = 25°C 70.1 76
TC = TC,MAX 61.9
TC = TC,MIN 64.8
fIN = 450 MHz 73.3
fIN = 650 MHz 61.6
fIN = 900 MHz 54.5
fIN = 1.0 GHz 51.6

Electrical Characteristics: ADS5463-SP

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, –1 dBFS differential input, and 3-VPP differential clockover operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DYNAMIC AC CHARACTERISTICS (CONT.)
SINAD Signal-to-noise and distortion fIN = 10 MHz 61.9 dBc
fIN = 70 MHz 62.2
fIN = 100 MHz TC = 25°C 58 62
TC = TC,MAX 58
TC = TC,MIN 58.4
fIN = 210 MHz TC = 25°C 55.8 62
TC = TC,MAX 56.2
TC = TC,MIN 56.7
fIN = 300 MHz TC = 25°C 54.9 61.9
TC = TC,MAX 52.2
TC = TC,MIN 56.1
fIN = 450 MHz 61.6
fIN = 650 MHz 59.4
fIN = 900 MHz 54.3
fIN = 1.0 GHz 51.4
Worst harmonic/spur (other than HD2 and HD3) fIN = 10 MHz 83.1 dBc
fIN = 70 MHz 80.2
fIN = 100 MHz TC = 25°C 72.2 81.8
TC = TC,MAX 70.6
TC = TC,MIN 72.6
fIN = 210 MHz TC = 25°C 70.6 77.5
TC = TC,MAX 67.1
TC = TC,MIN 66.5
fIN = 300 MHz TC = 25°C 69.3 78.2
TC = TC,MAX 66.3
TC = TC,MIN 66.3
fIN = 450 MHz 80.6
fIN = 650 MHz 80
fIN = 900 MHz 79.4
fIN = 1.0 GHz 77.6
THD Total harmonic distortion fIN = 10 MHz 63.5 dBc
fIN = 70 MHz 64
fIN = 100 MHz TC = 25°C 57.8 65.2
TC = TC,MAX 58.3
TC = TC,MIN 58.1
fIN = 210 MHz TC = 25°C 55 64.1
TC = TC,MAX 55.9
TC = TC,MIN 56.2
fIN = 300 MHz TC = 25°C 53.9 63.8
TC = TC,MAX 51
TC = TC,MIN 55.6
fIN = 450 MHz 63.7
fIN = 650 MHz 60.5
fIN = 900 MHz 53.9
fIN = 1.0 GHz 50.8
ENOB Effective number of bits fIN = 100 MHz TC = 25°C 9.3 10.1 Bits
TC = TC,MAX 9.3
TC = TC,MIN 9.4
fIN = 210 MHz TC = 25°C 8.9 10
TC = TC,MAX 9
TC = TC,MIN 9.1
fIN = 300 MHz TC = 25°C 8.8 9.9
TC = TC,MAX 8.3
TC = TC,MIN 9
RMS idle-channel noise Inputs tied to common-mode 0.7 LSB
LVDS DIGITAL OUTPUTS
VOD Differential output voltage 247 350 454 mV
VOC Common mode output voltage 1.125 1.375 V

Timing Requirements

Typical values at TC = 25°C, full temperature range is TC,MIN = –55°C to TC,MAX = 125°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, and 3 VPP differential clock (unless otherwise noted)(1).
MIN NOM MAX UNIT
ta Aperture delay 200 ps
Aperture jitter, rms 160 fs
Latency 3.5 cycles
tCLK Clock period 2 50 ns
tCLKH Clock pulse duration, high 1 ns
tCLKL Clock pulse duration, low 1 ns
tDRY CLK to DRY delay(2) Zero crossing 750 1500 2500 ps
tDATA CLK to DATA/OVR delay(2) Zero crossing 650 1500 3100 ps
tSKEW DATA to DRY skew tDATA–tDRY –700 0 700 ps
tRISE DRY/DATA/OVR rise time 500 ps
tFALL DRY/DATA/OVR fall time 500 ps
Timing parameters are assured by design or characterization, but not production tested. < 10-pF load on each output pin.
DRY, DATA and OVR are updated on the falling edge of CLK. The latency must be added to tDATA to determine the overall propagation delay.
ADS5463-SP T0158-01_LAS515.gif Figure 1. Timing Diagram
ADS5463-SP fm__gls378.gif Figure 2. ADS5463 Estimated Life at Elevated Temperature Electromigration Fail Mode

Typical Characteristics

Typical plots at TA = 25°C, sampling rate = 500 MSPS, 50% clock duty cycle, AVDD5 = 5 V, AVDD3 = 3.3 V, DVDD3 = 3.3 V, and 3 VPP differential clock, (unless otherwise noted)
ADS5463-SP ac_per100_gls378.gif Figure 3. AC Performance vs Input Amplitude (100-MHz Input Signal)
ADS5463-SP sfdrclk_gls378.gif Figure 5. SFDR vs Clock Level
ADS5463-SP sfdr_advdd5_gls378.gif Figure 7. SFDR vs AVDD5 Across Temperature
ADS5463-SP sfdr_avdd3_gls378.gif Figure 9. SFDR vs AVDD3 Across Temperature
ADS5463-SP sfdr_dvdd3a_gls378.gif Figure 11. SFDR vs DVDD3 Across Temperature
ADS5463-SP ac_per300_gls378.gif Figure 4. AC Performance vs Input Amplitude (300-MHz Input Signal)
ADS5463-SP snrclk_gls378.gif Figure 6. SNR vs Clock Level
ADS5463-SP snr_avdd5_gls378.gif Figure 8. SNR vs AVDD5 Across Temperature
ADS5463-SP snr_avdd3_gls378.gif Figure 10. SNR vs AVDD3 Across Temperature
ADS5463-SP snr_dvdd3a_gls378.gif Figure 12. SNR vs DVDD3 Across Temperature
ADS5463-SP sfdr_input_gls378.gif Figure 13. SFDR vs Input Frequency and Sampling Frequency
ADS5463-SP snr_input2_gls378.gif Figure 14. SNR vs Input Frequency and Sampling Frequency