TDA8762A Datasheet, PDF (10/24 Pages) NXP Semiconductors – 10-bit high-speed low-power analog-to-digital converter

Philips Semiconductors
10-bit high-speed low-power
analog-to-digital converter
Product specification
TDA8762A
5. The analog bandwidth is defined as the maximum input sine wave frequency which can be applied to the device.
No glitches greater than 2 LSBs, neither any significant attenuation are observed in the reconstructed signal.
6. 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.
7. 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.
8. Intermodulation measured relative to either tone with analog input frequencies of 4.43 MHz and 4.53 MHz. The two
input signals have the same amplitude and the total amplitude of both signals provides full scale to the converter.
9. Measurement carried out using video analyser VM700A, where the video analog signal is reconstructed through a
digital-to-analog converter.
10. Output data acquisition: the output data is available after the maximum delay time of t_d. In the event of a 80 MHz
clock operation, the hardware design must take into account the t_d and t_h limits with respect to the input
characteristics of the acquisition circuit; an external latch will ease the design if output data lines cannot be short to
minimize capacitance.
handbook, halfpage
VRT
VRM
VRB
9
7
RLAD
6
ROT
RL
IL
code 1023
code 0
ROB
MGD281
Fig.3 Explanation of note 3.
1996 Mar 21
10