SBAS603 Data sheet

SBAS603B April 2013 – November 2020 ADS4449

PRODUCTION DATA

Package Options

Mechanical Data (Package|Pins)

ZCR|144
- MPBGA77A

Thermal pad, mechanical data (Package|Pins)

Orderable Information

6.9 Typical Characteristics

At 25°C, AVDD = 1.9 V, AVDD3V = 3.3 V, DRVDD = 1.8 V, rated sampling frequency, 0-dB gain, sine-wave input clock, 1.5-V_PP differential clock amplitude, 50% clock duty cycle, –1-dBFS differential analog input, DDR LVDS output interface, and 32k-point FFT, unless otherwise noted.

f_IN = 40 MHz	SFDR = 84 dBc	SNR = 71.1 dBFS
SINAD = 70.9 dBFS		THD = 84 dBc

Figure 6-2 FFT for 40-MHz Input Signal

f_IN = 100 MHz	SFDR = 85 dBc	SNR = 70.2 dBFS
SINAD = 70.1 dBFS		THD = 84 dBc

Figure 6-4 FFT for 100-MHz Input Signal

f_IN = 170 MHz	SFDR = 89 dBc	SNR = 69 dBFS
SINAD = 68.9 dBFS		THD = 85 dBc

Figure 6-6 FFT for 170-MHz Input Signal

Each Tone at –7-dBFS Amplitude
f_IN1 = 45 MHz	f_IN2 = 50 MHz	SFDR = 92 dBFS
2-Tone IMD = 87 dBFS

Figure 6-8 FFT for Two-Tone Input Signal

Each Tone at –7-dBFS Amplitude
f_IN1 = 185.1 MHz	f_IN2 = 190.1 MHz	SFDR = 102 dBFS
2-Tone IMD = 97 dBFS

Figure 6-10 FFT for Two-Tone Input Signal

Figure 6-12 Spurious-Free Dynamic Range vs Input Frequency

Figure 6-14 Signal-to-Noise Ratio vs Input Frequency

Figure 6-16 Signal-to-Noise Ratio vs Digital Gain

Input Frequency = 185 MHz

Figure 6-18 Performance vs Input Amplitude

Input Frequency = 185 MHz

Figure 6-20 Spurious-Free Dynamic Range vs DRVDD Supply and Temperature

Input Frequency = 185 MHz

Figure 6-22 Spurious-Free Dynamic Range vs AVDD Supply and Temperature

Input Frequency = 185 MHz

Figure 6-24 Spurious-Free Dynamic Range vs AVDD3V Supply and Temperature

Input Frequency = 185 MHz

Figure 6-26 Performance vs Clock Amplitude

Input Frequency = 185 MHz
50-mV_PP Signal Superimposed on VCM

Figure 6-28 Common-Mode Rejection Ratio Spectrum

Input Frequency = 10 MHz
50-mV_PP Signal Superimposed on Supply

Figure 6-30 Power-Supply Rejection Ratio Spectrum for AVDD

Input Frequency = 185 MHz

Figure 6-32 Total Power vs Sampling Frequency

f_IN = 70 MHz	SFDR = 87 dBc	SNR = 70.9 dBFS
SINAD = 70.8 dBFS		THD = 84 dBc

Figure 6-3 FFT for 70-MHz Input Signal

f_IN = 140 MHz	SFDR = 87 dBc	SNR = 69.7 dBFS
SINAD = 69.6 dBFS		THD = 84 dBc

Figure 6-5 FFT for 140-MHz Input Signal

f_IN = 230 MHz	SFDR = 86 dBc	SNR = 68.9 dBFS
SINAD = 68.5 dBFS		THD = 84 dBc

Figure 6-7 FFT for 230-MHz Input Signal

Each Tone at –36-dBFS Amplitude
f_IN1 = 45 MHz	f_IN2 = 50 MHz	SFDR = 99 dBFS
2-Tone IMD = 99 dBFS

Figure 6-9 FFT for Two-Tone Input Signal

Each Tone at –36-dBFS Amplitude
f_IN1 = 185.1 MHz	f_IN2 = 190.1 MHz	SFDR = 100 dBFS
2-Tone IMD = 101 dBFS

Figure 6-11 FFT for Two-Tone Input Signal

Input Frequency = 170 MHz

Figure 6-13 HD2 Distribution over Multiple Devices

Figure 6-15 Spurious-Free Dynamic Range vs Digital Gain

Input Frequency = 70 MHz

Figure 6-17 Performance vs Input Amplitude

Input Frequency = 185 MHz

Figure 6-19 Performance vs Input Common-Mode Voltage

Input Frequency = 185 MHz

Figure 6-21 Signal-to-Noise Ratio vs DRVDD Supply and Temperature

Input Frequency = 185 MHz

Figure 6-23 Signal-to-Noise Ratio vs AVDD Supply and Temperature

Input Frequency = 185 MHz

Figure 6-25 Signal-to-Noise Ratio vs AVDD3V Supply and Temperature

Input Frequency = 185 MHz

Figure 6-27 Performance vs Clock Duty Cycle

f_IN = 185 MHz	Amplitude (f_IN – f_CM) = –80.9 dBFS
Amplitude (f_IN) = –1 dBFS	Amplitude (f_CM) = –95 dBFS
f_CM = 10 MHz, 50 mV_PP	Amplitude (f_IN + f_CM) = –77.2 dBFS
f_CM = 10 MHz, 50 mV_PP	SFDR = 76 dBc

Figure 6-29 Common-Mode Rejection Ratio vs Test Signal Frequency

Amplitude (f_IN) = –1 dBFS	Amplitude (f_PSRR) = –87 dBFS
f_IN = 10 MHz	Amplitude (f_IN + f_PSRR) = –60.6 dBFS
f_PSRR = 2 MHz, 50 mV_PP	Amplitude (f_IN – f_PSRR) = –60 dBFS

Figure 6-31 Power-Supply Rejection Ratio vs Test Signal Frequency

Input Frequency = 185 MHz

Figure 6-33 Power Breakup vs Sampling Frequency