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Электронный компонент: TDA8712

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DATA SHEET
Product specification
Supersedes data of April 1993
File under Integrated Circuits, IC02
June 1994
INTEGRATED CIRCUITS
Philips Semiconductors
TDA8712; TDF8712
8-bit digital-to-analog converters
June 1994
2
Philips Semiconductors
Product specification
8-bit digital-to-analog converters
TDA8712; TDF8712
FEATURES
8-bit resolution
Conversion rate up to 50 MHz
TTL input levels
Internal reference voltage generator
Two complementary analog voltage outputs
No deglitching circuit required
Internal input register
Low power dissipation
Internal 75
output load (connected to the analog
supply)
Very few external components required
Temperature range
TDA8712: 0 to 70
C
TDF8712:
-
40 to +85
C.
APPLICATIONS
High-speed digital-to-analog conversion
Digital TV including:
field progressive scan
line progressive scan
Subscriber TV decoders
Satellite TV decoders
Digital VCRs
Industrial and automotive.
GENERAL DESCRIPTION
The TDA8712 and TDF8712 are 8-bit digital-to-analog
converters (DACs) for video and other applications. They
convert the digital input signal into an analog voltage
output at a maximum conversion rate of 50 MHz. No
external reference voltage is required and all digital inputs
are TTL compatible.
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
PINS
PIN POSITION
MATERIAL
CODE
TDA8712
16
DIP
plastic
SOT38-1
TDF8712
16
DIP
plastic
SOT38-1
TDA8712T
16
SO16L
plastic
SOT162-1
TDF8712T
16
SO16L
plastic
SOT162-1
June 1994
3
Philips Semiconductors
Product specification
8-bit digital-to-analog converters
TDA8712; TDF8712
QUICK REFERENCE DATA
Notes
1. D0 to D7 are connected to V
CCD
and CLK is connected to DGND.
2. The analog output voltages (V
OUT
and V
OUT
) are negative with respect to V
CCA
(see Table 1). The output resistance
between V
CCA
and each of these outputs is typically 75
.
3. The
-
3 dB analog output bandwidth is determined by real time analysis of the output transient at a maximum input
code transition (code 0 to 255).
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
V
CCA
analog supply voltage
TDA8712
4.5
5.0
5.5
V
TDF8712
4.75
5.0
5.25
V
V
CCD
digital supply voltage
TDA8712
4.5
5.0
5.5
V
TDF8712
4.75
5.0
5.25
V
I
CCA
analog supply current
note 1
20
26
32
mA
I
CCD
digital supply current
note 1
16
23
30
mA
V
OUT(p-p)
full-scale analog output voltage
differences between V
OUT
and
V
OUT
(peak-to-peak value)
Z
L
= 10 k
; note 2
-
1.45
-
1.60
-
1.75
V
Z
L
= 75
; note 2
-
0.72
0.80
-
0.88
V
ILE
DC integral linear error
-
0.3
0.5
LSB
DLE
DC differential linearity error
-
0.3
0.5
LSB
f
clk(max)
maximum conversion rate
50
-
-
MHz
B
-
3 dB analog bandwidth
f
clk
= 50 MHz; note 3
-
150
-
MHz
P
tot
total power dissipation
TDA8712
160
250
340
mW
TDF8712
170
250
325
mW
June 1994
4
Philips Semiconductors
Product specification
8-bit digital-to-analog converters
TDA8712; TDF8712
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
BAND-GAP
REFERENCE
CURRENT
REFERENCE
LOOP
CURRENT
GENERATORS
CURRENT
SWITCHES
REGISTERS
CLOCK INPUT
INTERFACE
MBC915 - 1
DATA
INPUT
INTERFACE
12
11
3
4
10
9
8
7
5
1
2
6
REF
100 nF
DGND
AGND
CLK
(LSB) D0
D1
D2
D3
D4
D5
D6
(MSB) D7
75
75
16
15
14
VCCA
VOUT
VOUT
VCCD
TDA8712
TDF8712
June 1994
5
Philips Semiconductors
Product specification
8-bit digital-to-analog converters
TDA8712; TDF8712
PINNING
SYMBOL
PIN
DESCRIPTION
REF
1
voltage reference (decoupling)
AGND
2
analog ground
D2
3
data input; bit 2
D3
4
data input; bit 3
CLK
5
clock input
DGND
6
digital ground
D7
7
data input; bit 7 (MSB)
D6
8
data input; bit 6
D5
9
data input; bit 5
D4
10
data input; bit 4
D1
11
data input; bit 1
D0
12
data input; bit 0 (LSB)
V
CCD
13
digital supply voltage (+5 V)
V
OUT
14
analog output voltage
V
OUT
15
complimentary analog output voltage
V
CCA
16
analog supply voltage (+5 V)
Fig.2 Pin configuration.
handbook, halfpage
MBC901 - 1
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TDA8712
TDF8712
V CCA
V OUT
VCCD
D0
D1
D4
D5
D6
D7
D3
D2
DGND
CLK
AGND
REF
VOUT