REV. C
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADV7175A/ADV7176A*
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
High Quality, 10-Bit, Digital CCIR-601
to PAL/NTSC Video Encoder
FUNCTIONAL BLOCK DIAGRAM
FEATURES
ITU-R BT601/656 YCrCb to PAL/NTSC Video Encoder
High Quality 10-Bit Video DACs
Integral Nonlinearity <1 LSB at 10 Bits
NTSC-M, PAL-M/N, PAL-B/D/G/H/I
Single 27 MHz Clock Required ( 2 Oversampling)
80 dB Video SNR
32-Bit Direct Digital Synthesizer for Color Subcarrier
Multistandard Video Output Support:
Composite (CVBS)
Component S-Video (Y/C)
Component YUV and RGB
EuroSCART Output (RGB + CVBS/LUMA)
Video Input Data Port Supports:
CCIR-656 4:2:2 8-Bit Parallel Input Format
4:2:2 16-Bit Parallel Input Format
Full Video Output Drive or Low Signal Drive Capability
34.7 mA max into 37.5 (Doubly-Terminated 75R)
5 mA min with External Buffers
Programmable Simultaneous Composite
and S-Video Y/C or RGB (SCART)/YUV Video Outputs
Programmable Luma Filters (Low-Pass/Notch/Extended)
Programmable VBI (Vertical Blanking Interval)
Programmable Subcarrier Frequency and Phase
Programmable LUMA Delay
Individual ON/OFF Control of Each DAC
CCIR and Square Pixel Operation
Integrated Subcarrier Locking to External Video Source
Color Signal Control/Burst Signal Control
Interlaced/Noninterlaced Operation
Complete On-Chip Video Timing Generator
Programmable Multimode Master/Slave Operation
Macrovision Antitaping Rev 7.01 (ADV7175A Only)**
Closed Captioning Support
Teletext Insertion Port (PAL-WST)
Onboard Color Bar Generation
Onboard Voltage Reference
2-Wire Serial MPU Interface (I
2
C Compatible)
Single Supply 5 V or 3 V Operation
Small 44-Lead MQFP Thermally Enhanced Package
APPLICATIONS
MPEG-1 and MPEG-2 Video, DVD, Digital Satellite/
Cable Systems (Set Top Boxes/IRDs), Digital TVs,
CD Video/Karaoke, Video Games, PC Video/Multimedia
*Protected by U.S. patents numbers 5,343,196 and 5,442,355 and other intellectual property rights.
**This device is protected by U.S. Patent Numbers 4631603, 4577216, 4819098 and other intellectual property rights. The Macrovision anticopy process is
licensed for noncommercial home use only, which is its sole intended use in the device. Please contact sales office for latest Macrovision version available.
NOTE: ITU-R and CCIR are used interchangeably in this document (ITU-R has replaced CCIR recommendations).
(Continued on page 11)
GENERAL DESCRIPTION
The ADV7175A/ADV7176A is an integrated digital video encoder
that converts Digital CCIR-601 4:2:2 8 or 16-bit component
video data into a standard analog baseband television signal
YUV TO
RBG
MATRIX
V
AA
8
8
8
10
8
8
8
10
8
8
8
10
INTER-
POLATOR
YCrCb
TO
YUV
MATRIX
SIN/COS
DDS BLOCK
10
10
10
10
10
10
M
U
L
T
I
P
L
E
X
E
R
VIDEO TIMING
GENERATOR
I
2
C MPU PORT
4:2:2 TO
4:4:4
INTER-
POLATOR
VOLTAGE
REFERENCE
CIRCUIT
SCLOCK SDATA ALSB
HSYNC
FIELD/
VSYNC
BLANK
CLOCK
GND
DAC D (PIN 27)
DAC A (PIN 32)
V
REF
R
SET
COMP
V
LOW-PASS
FILTER
ADD
BURST
8
8
8
ADV7175A/ADV7176A
10-BIT
DAC
COLOR
DATA
P7P0
P15P8
10-BIT
DAC
10-BIT
DAC
REAL-TIME
CONTROL
CIRCUIT
SCRESET/RTC
INTER-
POLATOR
ADD
BURST
INTER-
POLATOR
ADD
SYNC
U
LOW-PASS
FILTER
Y
LOW-PASS
FILTER
10-BIT
DAC
DAC C (PIN 26)
DAC B (PIN 31)
TELETEXT
INSERTION
BLOCK
TTXREQ
TTX
RESET
2
REV. C
ADV7175A/ADV7176ASPECIFICATIONS
(V
AA
= 5 V 5%
1
, V
REF
= 1.235 V, R
SET
= 150
. All specifications T
MIN
to T
MAX
2
unless otherwise noted)
Parameter
Conditions
1
Min
Typ
Max
Unit
STATIC PERFORMANCE
Resolution (Each DAC)
10
Bits
Accuracy (Each DAC)
Integral Nonlinearity
1
LSB
Differential Nonlinearity
Guaranteed Monotonic
1
LSB
DIGITAL INPUTS
Input High Voltage, V
INH
2
V
Input Low Voltage, V
INL
0.8
V
Input Current, I
IN
3
V
IN
= 0.4 V or 2.4 V
1
A
Input Current, I
IN
4
V
IN
= 0.4 V or 2.4 V
50
A
Input Capacitance, C
IN
10
pF
DIGITAL OUTPUTS
Output High Voltage, V
OH
I
SOURCE
= 400
A
2.4
V
Output Low Voltage, V
OL
I
SINK
= 3.2 mA
0.4
V
Three-State Leakage Current
10
A
Three-State Output Capacitance
10
pF
ANALOG OUTPUTS
Output Current
5
33
34.7
37
mA
Output Current
6
5
mA
DAC-to-DAC Matching
0.6
5
%
Output Compliance, V
OC
0
1.4
V
Output Impedance, R
OUT
15
k
Output Capacitance, C
OUT
I
OUT
= 0 mA
30
pF
VOLTAGE REFERENCE
Reference Range, V
REF
I
VREFOUT
= 20
A
1.112
1.235
1.359
V
POWER REQUIREMENTS
7
V
AA
4.75
5.0
5.25
V
Normal Power Mode
I
DAC
(max)
8
150
155
mA
I
DAC
(min)
8
20
mA
I
CCT
9
100
150
mA
Low Power Mode
I
DAC
(max)
8
80
mA
I
DAC
(min)
8
15
mA
I
CCT
9
100
150
mA
Power Supply Rejection Ratio
COMP = 0.1
F
0.01
0.5
%/%
NOTES
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 4.75 V to 5.25 V.
2
Temperature range T
MIN
to T
MAX
: 0
C to 70C.
3
All digital input pins except pins
RESET and RTC/SCRESET.
4
Excluding all digital input pins except pins
RESET and RTC/SCRESET.
5
Full
drive into 37.5
load.
6
Minimum drive current (used with buffered/scaled output load).
7
Power measurements are taken with Clock Frequency = 27 MHz. Max T
J
= 110
C.
8
I
DAC
is the total current (min corresponds to 5 mA output per DAC, max corresponds to 37 mA output per DAC) to drive all four DACs. Turning off individual
DACs reduces I
DAC
correspondingly.
9
I
CCT
(Circuit Current) is the continuous current required to drive the device.
Specifications subject to change without notice.
5 V SPECIFICATIONS
3
REV. C
ADV7175A/ADV7176A
Parameter
Conditions
1
Min
Typ
Max
Unit
STATIC PERFORMANCE
3
Resolution (Each DAC)
10
Bits
Accuracy (Each DAC)
Integral Nonlinearity
1
LSB
Differential Nonlinearity
Guaranteed Monotonic
1
LSB
DIGITAL INPUTS
Input High Voltage, V
INH
2
V
Input Low Voltage, V
INL
0.8
V
Input Current, I
IN
3, 4
V
IN
= 0.4 V or 2.4 V
1
A
Input Current, I
IN
3,
5
V
IN
= 0.4 V or 2.4 V
50
A
Input Capacitance, C
IN
10
pF
DIGITAL OUTPUTS
Output High Voltage, V
OH
I
SOURCE
= 400
A
2.4
V
Output Low Voltage, V
OL
I
SINK
= 3.2 mA
0.4
V
Three-State Leakage Current
3
10
A
Three-State Output Capacitance
3
10
pF
ANALOG OUTPUTS
3
Output Current
6, 7
16.5
17.35
18.5
mA
Output Current
8
5
mA
DAC-to-DAC Matching
2.0
%
Output Compliance, V
OC
0
1.4
V
Output Impedance, R
OUT
15
k
Output Capacitance, C
OUT
I
OUT
= 0 mA
30
pF
POWER REQUIREMENTS
3, 9
V
AA
3.0
3.3
3.6
V
Normal Power Mode
I
DAC
(max)
10
150
155
mA
I
DAC
(min)
10
20
mA
I
CCT
9
45
mA
Low Power Mode
I
DAC
(max)
10
75
mA
I
DAC
(min)
10
15
mA
I
CCT
11
45
mA
Power Supply Rejection Ratio
COMP = 0.1
F
0.01
0.5
%/%
NOTES
1
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 3.0 V to 3.6 V.
1
2
Temperature range T
MIN
to T
MAX
: 0
C to 70C.
1
3
Guaranteed by characterization.
1
4
All digital input pins except pins
RESET and RTC/SCRESET.
1
5
Excluding all digital input pins except pins
RESET and RTC/SCRESET.
1
6
Full
drive into 37.5
load.
1
7
DACs can output 35 mA typically at 3.3 V (R
SET
= 150
and R
L
= 75
), optimum performance obtained at 18 mA DAC current (R
SET
= 300
and R
L
= 150
.
1
8
Minimum drive current (used with buffered/scaled output load).
1
9
Power measurements are taken with Clock Frequency = 27 MHz. Max T
J
= 110
C.
10
I
DAC
is the total current (min corresponds to 5 mA output per DAC, max corresponds to 38 mA output per DAC) to drive all four DACs. Turning off individual
DACs reduces I
DAC
correspondingly.
11
I
CCT
(Circuit Current) is the continuous current required to drive the device.
Specifications subject to change without notice.
3.3 V SPECIFICATIONS
(V
AA
= 3.0 V3.6 V
1
, V
REF
= 1.235 V, R
SET
= 300
. All specifications T
MIN
to T
MAX
2
unless otherwise noted)
4
REV. C
ADV7175A/ADV7176ASPECIFICATIONS
Parameter
Conditions
1
Min
Typ
Max
Unit
Filter Characteristics
Luma Bandwidth
3
(Low-Pass Filter)
NTSC Mode
Stopband Cutoff
>54 dB Attenuation
7.0
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
4.2
MHz
Chroma Bandwidth
NTSC Mode
Stopband Cutoff
>40 dB Attenuation
3.2
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
2.0
MHz
Luma Bandwidth
3
(Low-Pass Filter)
PAL Mode
Stopband Cutoff
>50 dB Attenuation
7.4
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
5.0
MHz
Chroma Bandwidth
PAL Mode
Stopband Cutoff
>40 dB Attenuation
4.0
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
2.4
MHz
Differential Gain
4
Normal Power Mode
0.4
%
Differential Phase
4
Normal Power Mode
0.4
Degree
Differential Gain
4
Lower Power Mode
2.0
%
Differential Phase
4
Lower Power Mode
1.0
Degree
SNR
4
(Pedestal)
RMS
80
dB rms
SNR
4
(Pedestal)
Peak Periodic
70
dB p-p
SNR
4
(Ramp)
RMS
60
dB rms
SNR
4
(Ramp)
Peak Periodic
58
dB p-p
Hue Accuracy
4
0.5
Degree
Color Saturation Accuracy
4
1.0
%
Chroma Nonlinear Gain
4
Referenced to 40 IRE
0.6
%
Chroma Nonlinear Phase
4
NTSC
0.2
Degree
Chroma Nonlinear Phase
4
PAL
0.4
Degree
Chroma/Luma Intermod
4
Referenced to 714 mV (NTSC)
0.1
%
Chroma/Luma Intermod
4
Referenced to 700 mV (PAL)
0.1
%
Chroma/Luma Gain Ineq
4
0.6
%
Chroma/Luma Delay Ineq
4
2.0
ns
Luminance Nonlinearity
4
1.0
%
Chroma AM Noise
4
66
dB
Chroma PM Noise
4
63
dB
NOTES
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 4.75 V to 5.25 V.
2
Temperature range T
MIN
to T
MAX
: 0
C to 70C.
3
These specifications are for the low-pass filter only and guaranteed by design. For other internal filters, see Figure 4.
4
Guaranteed by characterization.
Specifications subject to change without notice.
5 V DYNAMIC SPECIFICATIONS
1
(V
AA
= 4.75 V5.25 V
1
, V
REF
= 1.235 V, R
SET
= 150 . All specifications T
MIN
to T
MAX
2
unless otherwise noted.)
5
REV. C
ADV7175A/ADV7176A
Parameter
Conditions
1
Min
Typ
Max
Unit
Filter Characteristics
Luma Bandwidth
3
(Low-Pass Filter)
NTSC Mode
Stopband Cutoff
>54 dB Attenuation
7.0
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
4.2
MHz
Chroma Bandwidth
NTSC Mode
Stopband Cutoff
>40 dB Attenuation
3.2
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
2.0
MHz
Luma Bandwidth
3
(Low-Pass Filter)
PAL Mode
Stopband Cutoff
>50 dB Attenuation
7.4
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
5.0
MHz
Chroma Bandwidth
PAL Mode
Stopband Cutoff
>40 dB Attenuation
4.0
MHz
Passband Cutoff F
3 dB
>3 dB Attenuation
2.4
MHz
Differential Gain
4
Normal Power Mode
0.7
%
Differential Phase
4
Normal Power Mode
0.5
Degree
SNR
4
(Pedestal)
RMS
75
dB rms
SNR
4
(Pedestal)
Peak Periodic
68
dB p-p
SNR
4
(Ramp)
RMS
58
dB rms
SNR
4
(Ramp)
Peak Periodic
56
dB p-p
Hue Accuracy
4
1.0
Degree
Color Saturation Accuracy
4
1.2
%
Luminance Nonlinearity
4
1.1
%
Chroma AM Noise
4
NTSC
67
dB
Chroma PM Noise
4
NTSC
63
dB
Chroma AM Noise
4
PAL
64
dB
Chroma PM Noise
4
PAL
63
dB
NOTES
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 3.0 V to 3.6 V.
2
Temperature range T
MIN
to T
MAX
: 0
C to 70C.
3
These specifications are for the low-pass filter only and guaranteed by design. For other internal filters, see Figure 4.
4
Guaranteed by characterization.
Specifications subject to change without notice.
3.3 V DYNAMIC SPECIFICATIONS
1
(V
AA
= 3.0 V3.6 V
1
, V
REF
= 1.235 V, R
SET
= 300
. All specifications T
MIN
to T
MAX
2
unless otherwise noted.)
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