tda8761am NXP Semiconductors, tda8761am Datasheet - Page 2

• Manufacturer Part Number: tda8761am
• Description: 9-bit Analog-to-digital Converter For Digital Video
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
QUICK REFERENCE DATA
Note
1. f
1998 Nov 03
V
V
V
I
I
I
INL
AINL
DNL
ADNL
f
P
SYMBOL
CCA
CCD
CCO
clk(max)
9-bit resolution
Sampling rate up to 40 MHz
DC sampling allowed
One clock cycle conversion only
High signal-to-noise ratio over a large analog input
frequency range (8.2 effective bits at 10 MHz full-scale
input at f
No missing codes guaranteed
In Range (IR) CMOS output
Levels TTL and CMOS compatible digital inputs
3 to 5 V CMOS digital outputs
Low-level AC clock input signal allowed
External reference voltage regulator
Power dissipation only 158 mW (typical)
Low analog input capacitance, no buffer amplifier
required
No sample-and-hold circuit required.
CCA
CCD
CCO
tot
9-bit analog-to-digital converter
for digital video
i
= 10 MHz and f
clk
analog supply voltage
digital supply voltage
output stages supply voltage
analog supply current
digital supply current
output stages supply current
integral non-linearity
AC integral non-linearity
differential non-linearity
AC differential non-linearity
maximum clock frequency
total power dissipation
= 30 MHz)
PARAMETER
clk
= 30 MHz; f
i
= 8 MHz and f
f
f
full-scale input sine wave; note 1
50% full-scale input sine wave; note 1
f
full-scale input sine wave; note 1
50% full-scale input sine wave; note 1
clk
clk
clk
= 30 MHz; ramp input
= 30 MHz; ramp input
= 30 MHz; ramp input
clk
= 20 MHz.
CONDITIONS
2
APPLICATIONS
Analog-to-digital conversion for:
GENERAL DESCRIPTION
The TDA8761A is a 9-bit Analog-to-Digital Converter
(ADC) for professional video and digital video set box
applications. It converts the analog input signal into 9-bit
binary-coded digital words at a maximum sampling rate of
40 MHz. Its linearity performance ensures the required
conversion accuracy in the event of 256-QAM
demodulator concept and for all symbol frequencies.
All digital inputs and outputs are TTL and CMOS
compatible, although a low-level sine wave clock input
signal is allowed.
Video data digitizing
Digital Video Broadcasting (DVB)
Cable TV.
4.75
4.75
3.0
40
MIN.
5.0
5.0
3.3
18
13
1
158
TYP.
0.8
0.75
0.5
0.3
0.5
0.3
Product specification
TDA8761A
5.25
5.25
5.25
24
18
2
0.9
173
MAX.
1.6
0.75
0.7
0.75
0.5
V
V
V
mA
mA
mA
LSB
LSB
LSB
LSB
LSB
LSB
MHz
mW
UNIT