INTEGRATED CIRCUITS
DATA SHEET
TDA8706A
6-bit analog-to-digital converter
with multiplexer and clamp
Product specification
File under Integrated Circuits, IC02
1996 Jul 30
Philips Semiconductors
Product specification
6-bit analog-to-digital converter
with multiplexer and clamp
FEATURES
•
6-bit resolution
•
Binary 3-state CMOS outputs
•
CMOS compatible digital inputs
•
3 multiplexed video inputs
•
R, G and B clamps on code 0
•
Single 6-bit ADC operation allowed up to 40 MSPS
•
External control of clamping level
•
Internal reference voltage (external reference allowed)
•
Power dissipation only 36 mW (typical)
•
Operating temperature of
−40
to +85
°C
•
Operating between 2.7 and 5.5 V.
QUICK REFERENCE DATA
SYMBOL
V
DDA
V
DDD
V
DDO
I
DDA
I
DDD
I
DDO
INL
DNL
f
clk(max)
P
tot
PARAMETER
analog supply voltage
digital supply voltage
output stages supply voltage
analog supply current
digital supply current
output stages supply current
integral non-linearity
differential non-linearity
maximum clock frequency
total power dissipation
f
clk
= 40 MHz; ramp input
3 V supplies
5.5 V supplies
ORDERING INFORMATION
TYPE
NUMBER
TDA8706AM
PACKAGE
NAME
SSOP24
DESCRIPTION
plastic shrink small outline package; 24 leads; body width 5.3 mm
−
−
36
−
f
clk
= 40 MHz; ramp input
f
clk
= 40 MHz; ramp input;
T
amb
= 25
°C
f
clk
= 40 MHz; ramp input;
T
amb
= 25
°C
CONDITIONS
MIN.
2.7
2.7
2.7
−
−
−
−
−
40
TYP.
3.0
3.0
3.0
7
4
1
±0.25
±0.20
−
GENERAL DESCRIPTION
APPLICATIONS
•
General purpose video applications
•
R, G and B signals
•
Automotive (car navigation)
•
LCD systems
•
Frame grabber.
TDA8706A
The TDA8706A is a 6-bit analog-to-digital converter (ADC)
with 3 analog multiplexed inputs. Each input has an analog
clamp on code 0 for RGB video processing. Clamping
level can also be adjusted externally up to code 20. It can
also be used as a single 6-bit ADC.
MAX.
5.5
5.5
5.5
10
6
1.5
±0.6
±0.5
−
−
96
UNIT
V
V
V
mA
mA
mA
LSB
LSB
MHz
mW
mW
VERSION
SOT340-1
1996 Jul 30
2
Philips Semiconductors
Product specification
6-bit analog-to-digital converter
with multiplexer and clamp
BLOCK DIAGRAM
TDA8706A
VCLPR
handbook, full pagewidth
11
VCLPB
12
VCLPG
13
CLK
24
CLP
4
CLAMP
20
D5
19
D4
RED
8
MULTIPLEXER
6-BIT
ADC
CMOS
OUTPUTS
18
D3
17
D2
digital
voltage
outputs
GREEN
9
16
D1
BLUE
10
15
D0
TDA8706A
VSSD
22
VDDA
21
VDDO
5
VDDA
23
VDDD
1
SR
2
SG
select
inputs
3
SB
REGULATOR
6
VRB
7
VSSA
14
VSSO
MGD133
Fig.1 Block diagram.
1996 Jul 30
3
Philips Semiconductors
Product specification
6-bit analog-to-digital converter
with multiplexer and clamp
PINNING
SYMBOL
SR
SG
SB
CLP
V
DDA
V
RB
V
SSA
RED
GREEN
BLUE
V
CLPR
V
CLPB
V
CLPG
V
SSO
D0
D1
D2
D3
D4
D5
V
DDO
V
SSD
V
DDD
CLK
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
DESCRIPTION
select input RED
select input GREEN
select input BLUE
clamping pulse input (positive pulse)
analog supply voltage
reference voltage BOTTOM input
analog ground
RED input
GREEN input
BLUE input
RED clamping voltage level input
BLUE clamping voltage level input
GREEN clamping voltage level input
digital output ground
digital voltage output; bit 0 (LSB)
digital voltage output; bit 1
digital voltage output; bit 2
digital voltage output; bit 3
digital voltage output; bit 4
digital voltage output; bit 5
supply voltage for output stage
digital ground
digital supply voltage
clock input
handbook, halfpage
TDA8706A
SR
SG
SB
CLP
VDDA
VRB
VSSA
RED
GREEN
1
2
3
4
5
6
24 CLK
23 VDDD
22 VSSD
21 VDDO
20 D5
19 D4
TDA8706A
7
8
9
18 D3
17 D2
16 D1
15 D0
14 VSSO
13 VCLPG
MGD132
BLUE 10
VCLPR 11
VCLPB 12
Fig.2 Pin configuration.
1996 Jul 30
4
Philips Semiconductors
Product specification
6-bit analog-to-digital converter
with multiplexer and clamp
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
V
DDA
V
DDD
∆V
DD
analog supply voltage
digital supply voltage
supply voltage difference
V
DDA
−
V
DDD
V
DDA
−
V
DDO
V
DDD
−
V
DDO
V
I
I
O
T
stg
T
amb
T
j
HANDLING
input voltage
output current
storage temperature
operating ambient temperature
junction temperature
−1.0
−1.0
−1.0
−0.3
−
−55
−40
−
PARAMETER
MIN.
−0.3
−0.3
TDA8706A
MAX.
+7.0
+7.0
+1.0
+1.0
+1.0
+7.0
10
+150
+85
+150
V
V
V
V
V
V
UNIT
mA
°C
°C
°C
Inputs and outputs are protected against electrostatic discharges in normal handling. However, to be totally safe, it is
desirable to take normal precautions appropriate to handling integrated circuits.
THERMAL CHARACTERISTICS
SYMBOL
R
th j-a
PARAMETER
thermal resistance from junction to ambient in free air
VALUE
119
UNIT
K/W
1996 Jul 30
5
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