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PDF TDA8709AT Data sheet ( Hoja de datos )
| Número de pieza | TDA8709AT | |
| Descripción | Video analog input interface | |
| Fabricantes | NXP Semiconductors | |
| Logotipo |  |
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INTEGRATED CIRCUITS
DATA SHEET
TDA8709A
Video analog input interface
Product specification
Supersedes data of April 1993
File under Integrated Circuits, IC02
Philips Semiconductors
June 1994
1 page  
Philips Semiconductors
Video analog input interface
Product specification
TDA8709A
FUNCTIONAL DESCRIPTION
TDA8709A is an 8-bit ADC with internal clamping and a
preamplifier with adjustable gain.
The clamping value is switched via pin 27 between
digital 16 (for R, G, B signals) and digital 128 (for
chrominance or colour difference signals). While clamping
pulse at pin 27 is logic 1, the device will adjust the
clamping level to the chosen value. The output format can
be selected between binary and two's complement at
pin 28.
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
PARAMETER
VCCA
VCCD
VCCO
∆VCC
VI
IO
Tstg
Tamb
Tj
analog supply voltage
digital supply voltage
TTL output supply voltage
supply voltage difference between VCCA and VCCD
supply voltage difference between VCCO and VCCD
supply voltage difference between VCCA and VCCO
input voltage
output current
storage temperature
operating ambient temperature
junction temperature
MIN.
−0.3
−0.3
−0.3
−0.5
−0.5
−1.0
−0.3
−
−55
0
0
MAX.
+7.0
+7.0
+7.0
+0.5
+0.5
+1.0
+7.0
+10
+150
+70
+125
UNIT
V
V
V
V
V
V
V
mA
°C
°C
°C
THERMAL CHARACTERISTICS
SYMBOL
Rth j-a
PARAMETER
thermal resistance from junction to ambient in free air
SOT117-1
SOT136-1
VALUE
55
70
UNIT
K/W
K/W
June 1994
5
5 Page 
Philips Semiconductors
Video analog input interface
Product specification
TDA8709A
handbook, full pagewidth
5 MHz sine wave
0.25 V
1.0 V
64 µs
0.25 V
MBB959
Fig.3 Test signal on the ADCIN pin for differential gain and phase measurements.
handbook, full pagewiddtihgital
output
level
255
"128"
"16"
CLS = 1
CLS = 2
0
CLP
black-level
clamping
t CLP
June 1994
Fig.4 Control mode selection.
11
MBB960
t
11 Page | ||
| Páginas | Total 28 Páginas | |
| PDF Descargar | [ Datasheet TDA8709AT.PDF ] | |
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