TDA8764A Datasheet, PDF (11/24 Pages) NXP Semiconductors – 10-bit high-speed low-power ADC

Philips Semiconductors
10-bit high-speed low-power ADC
Product specification
TDA8764A
7. The analog input settling time is the minimum time required for the input signal to be stabilized after a sharp full-scale
input (square wave signal) in order to sample the signal and obtain correct output data.
8. Effective bits are obtained via a Fast Fourier Transform (FFT) treatment taking 8K acquisition points per equivalent
fundamental period. The calculation takes into account all harmonics and noise up to half of the clock frequency
(Nyquist frequency). Conversion to signal-to-noise ratio: S/N = EB × 6.02 + 1.76 dB.
9. Intermodulation measured relative to either tone with analog input frequencies of 4.5 and 4.3 MHz. The two input
signals have the same amplitude and the total amplitude of both signals provides full-scale to the converter.
10. Output data acquisition: the output data is available after the maximum delay time of t_d. It is recommended to have
the lowest possible output load. These parameters are guaranteed by characterization and not by production test.
handbook, halfpage
VRT
VRM
VRB
RLAD
ROT
RL
IL
code 1023
code 0
ROB
FCE256
Fig.4 Explanation of note 4.
2000 Jul 03
11