TDA8768A Datasheet, PDF (13/32 Pages) NXP Semiconductors – 12-bit, 70 Msps Analog-to-Digital Converter (ADC)

Philips Semiconductors
TDA8768A
12-bit, 70 Msps Analog-to-Digital Converter (ADC)
V _CCD
CE
0V
output
data
output
data
50 %
tdLZ
tdZL
HIGH
HIGH
tdHZ
tdZH
90 %
LOW
50 %
LOW _{10 %}
TDA8768A
CE
50 %
3.3 kΩ
15 pF
V _CCO
S1
TEST
t _dLZ
t _dZL
t _dHZ
t _dZH
S1
VCCO
VCCO
OGND
OGND
MBG856
f_CE = 100 kHz.
Fig 4. Timing diagram and test conditions of 3-state output delay time.
10.4
ENOB
(bits)
10.2
10
9.8
9.6
005aaa011
(1)
(2)
(3)
9.4
9.2
9
1
10
fi (MHz)
100
(1) 40 Msps
(2) 55 Msps
(3) 70 Msps
Fig 5. Effective number of bits (ENOB) as a function
of input frequency (sample device).
−58
THD
(dBFS)
−60
005aaa012
−62
−64
−66
(3)
−68
(2)
−70
(1)
−72
1
10
fi (MHz)
100
(1) 40 Msps
(2) 55 Msps
(3) 70 Msps
Fig 6. Total harmonic distortion (THD) as a function of
input frequency (sample device).
9397 750 09656
Product data
Rev. 02 — 03 July 2002
© Koninklijke Philips Electronics N.V. 2002. All rights reserved.
13 of 32