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LM15851NKE10 Folha de dados(PDF) 10 Page - Texas Instruments |
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LM15851NKE10 Folha de dados(HTML) 10 Page - Texas Instruments |
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10 / 87 page  LM15851 SLAS990D – JANUARY 2014 – REVISED JULY 2015 www.ti.com Electrical Characteristics (continued) Unless otherwise noted, these specifications apply for V(VA12) = V(VD12) = 1.2 V, V(VA19) = 1.9 V, VIN full scale range at default setting (725 mVPP), VIN = –1 dBFS, differential AC-coupled sinewave input clock, ƒ(DEVCLK) = 4 GHz at 0.5 VPP with 50% duty cycle, R(RBIAS) = 3.3 kΩ ±0.1%, after a foreground (FG) mode calibration with timing calibration enabled. Typical values are at TA = 25°C. (1)(2) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TA = 25°C (3) 60.1 Signal-to-noise ratio, TA = TMIN to TMAX (3) 56.7 FIN = 600 MHz, –1 dBFS, decimate-by-4 integrated across DDC alias mode SNR2 protected output bandwidth TA = 25°C, calibration = BG (3) 60.2 dBFS Input frequency-dependent TA = TMIN to TMAX, calibration = BG (3) 56.7 interleaving spurs excluded FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode (3) 57 TA = 25°C 59.9 Signal-to-noise and distortion TA = TMIN to TMAX 55.9 ratio, integrated across DDC FIN = 600 MHz, –1 dBFS, decimate-by-4 alias protected output mode SINAD1 TA = 25°C, calibration = BG 59.2 dBFS bandwidth Input frequency-dependent TA = TMIN to TMAX, calibration = BG 53.1 interleaving spurs included FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode 56.4 TA = 25°C (3) 60.1 Signal-to-noise and distortion TA = TMIN to TMAX (3) 56.3 FIN = 600 MHz, –1 dBFS, decimate-by-4 ratio, integrated across DDC mode SINAD2 alias protected output TA = 25°C, calibration = BG (3) 60.1 dBFS bandwidth TA = TMIN to TMAX, calibration = BG (3) 56.4 Interleaving spurs excluded FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode (3) 57 TA = 25°C 9.7 TA = TMIN to TMAX 9.0 Effective number of bits, FIN = 600 MHz, –1 dBFS, Decimate-by-4 integrated across DDC alias mode ENOB1 TA = 25°C, calibration = BG 9.5 Bits protected output bandwidth Interleaving spurs included TA = TMIN to TMAX, calibration = BG 8.5 FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode 9.1 TA = 25°C (3) 9.7 TA = TMIN to TMAX (3) 9.0 Effective number of bits, FIN = 600 MHz, –1 dBFS, decimate-by-4 integrated across DDC alias mode ENOB2 TA = 25°C, calibration = BG (3) 9.7 Bits protected output bandwidth Interleaving spurs excluded TA = TMIN to TMAX, calibration = BG (3) 9.1 FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode (3) 8.5 TA = 25°C 70.1 TA = TMIN to TMAX 59.2 Spurious-free dynamic range FIN = 600 MHz, –1 dBFS, decimate-by-4 across entire Nyquist mode SFDR1 TA = 25°C, calibration = BG 62.9 dBFS bandwidth Interleaving spurs included TA = TMIN to TMAX, calibration = BG 51.8 FIN = 2400 MHz, –1 dBFS, decimate-by-4 mode 66.4 TA = 25°C (3) 71.6 TA = TMIN to TMAX (3) 60 Spurious-free dynamic range FIN = 600 MHz, –1 dBFS, decimate-by-4 across entire Nyquist mode SFDR2 TA = 25°C, calibration = BG (3) 74.8 dBFS bandwidth Interleaving spurs excluded TA = TMIN to TMAX, calibration = BG (3) 62.9 FIN = 2400 MHz, –1 dBFS, Decimate-by-4 mode (3) 80.4 TA = 25°C –72 TA = TMIN to TMAX –56 Interleaving offset spur at ½ FIN = 600 MHz, –1 dBFS, decimate-by-4 ƒS/2 dBFS sampling rate (4) mode TA = 25°C, calibration = BG –65 TA = TMIN to TMAX, calibration = BG –50.5 TA = 25°C –68 TA = TMIN to TMAX –55 Interleaving offset spur at ¼ FIN = 600 MHz, –1 dBFS, decimate-by-4 ƒS/4 dBFS sampling rate (4) mode TA = 25°C, calibration = BG –62 TA = TMIN to TMAX, calibration = BG –47.4 TA = 25°C –75 Interleaving spur at ½ TA = TMIN to TMAX –62.3 FIN = 600 MHz, –1 dBFS, decimate-by-4 ƒS/2 – FIN sampling rate – input dBFS mode TA = 25°C, calibration = BG –70 frequency (4) TA = TMIN to TMAX, calibration = BG –51.5 (3) Interleave related spurs at ƒS / 2 – FIN, ƒS / 4 + FIN and ƒS / 4 – FIN are excluded from these performance calculations. The magnitude of these spurs is provided separately. (4) Magnitude of reported tones in output spectrum of ADC core. This tone will only be present in the DDC output for specific Decimation and NCO settings. Careful frequency planning can be used to intentionally place unwanted tones outside the DDC output spectrum. 10 Submit Documentation Feedback Copyright © 2014–2015, Texas Instruments Incorporated Product Folder Links: LM15851 |
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