INTEGRATED CIRCUITS
DATA SHEET
SAA7114
PAL/NTSC/SECAM video decoder
with adaptive PAL/NTSC comb
filter, VBI data slicer and high
performance scaler
Product specification
Supersedes data of 2000 Mar 15
2004 Mar 03
Philips Semiconductors
Product specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI data slicer and high performance scaler
CONTENTS
1
1.1
1.2
1.3
1.4
1.5
1.6
2
3
4
5
6
7
8
8.1
8.2
8.3
8.4
8.5
8.6
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
FEATURES
Video decoder
Video scaler
Vertical Blanking Interval (VBI) data decoder
and slicer
Audio clock generation
Digital I/O interfaces
Miscellaneous
APPLICATIONS
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
Decoder
Decoder output formatter
Scaler
VBI data decoder and capture
(subaddresses 40H to 7FH)
Image port output formatter
(subaddresses 84H to 87H)
Audio clock generation
(subaddresses 30H to 3FH)
INPUT/OUTPUT INTERFACES AND PORTS
Analog terminals
Audio clock signals
Clock and real-time synchronization signals
Video expansion port (X port)
Image port (I port)
Host port for 16-bit extension of video data I/O
(H port)
Basic input and output timing diagrams I port
and X port
16
16.1
16.2
16.3
16.4
17
18
18.1
18.2
18.3
18.4
18.5
19
20
21
22
10
10.1
10.2
11
12
13
14
15
15.1
15.2
15.3
15.4
15.5
BOUNDARY SCAN TEST
SAA7114
Initialization of boundary scan circuit
Device identification codes
LIMITING VALUES
THERMAL CHARACTERISTICS
CHARACTERISTICS
APPLICATION INFORMATION
I
2
C-BUS DESCRIPTION
I
2
C-bus format
I
2
C-bus details
Programming register audio clock generation
Programming register VBI data slicer
Programming register interfaces and scaler
part
PROGRAMMING START SET-UP
Decoder part
Audio clock generation part
Data slicer and data type control part
Scaler and interfaces
PACKAGE OUTLINES
SOLDERING
Introduction to soldering surface mount
packages
Reflow soldering
Wave soldering
Manual soldering
Suitability of surface mount IC packages for
wave and reflow soldering methods
DATA SHEET STATUS
DEFINITIONS
DISCLAIMERS
PURCHASE OF PHILIPS I
2
C COMPONENTS
2004 Mar 03
2
Philips Semiconductors
Product specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI data slicer and high performance scaler
1
1.1
FEATURES
Video decoder
SAA7114
•
Six analog inputs, internal analog source selectors, e.g.
6
×
CVBS or (2
×
Y/C and 2
×
CVBS) or (1
×
Y/C and
4
×
CVBS)
•
Two analog preprocessing channels in differential
CMOS style inclusive built-in analog anti-alias filters
•
Fully programmable static gain or Automatic Gain
Control (AGC) for the selected CVBS or Y/C channel
•
Automatic Clamp Control (ACC) for CVBS, Y and C
•
Switchable white peak control
•
Two 9-bit video CMOS Analog-to-Digital Converters
(ADCs), digitized CVBS or Y/C signals are available on
the expansion port
•
On-chip line-locked clock generation in accordance with
“ITU 601”
•
Digital PLL for synchronization and clock generation
from all standards and non-standard video sources e.g.
consumer grade VTR
•
Requires only one crystal (32.11 or 24.576 MHz) for all
standards
•
Horizontal and vertical sync detection
•
Automatic detection of 50 and 60 Hz field frequency,
and automatic switching between PAL and NTSC
standards
•
Luminance and chrominance signal processing for
PAL B, G, D, H, I and N, combination PAL N, PAL M,
NTSC M, NTSC-Japan, NTSC 4.43 and SECAM
•
Adaptive 2/4-line comb filter for two dimensional
chrominance/luminance separation:
– Increased luminance and chrominance bandwidth for
all PAL and NTSC standards
– Reduced cross colour and cross luminance artefacts
•
PAL delay line for correcting PAL phase errors
•
Independent Brightness Contrast Saturation (BCS)
adjustment for decoder part
•
User programmable sharpness control
•
Independent gain and offset adjustment for raw data
path.
1.2
Video scaler
•
Horizontal and vertical downscaling and upscaling to
randomly sized windows
•
Horizontal and vertical scaling range: variable zoom to
1
⁄
(icon) (it should be noted that the H and V zoom are
64
restricted by the transfer data rates)
•
Anti-alias and accumulating filter for horizontal scaling
•
Vertical scaling with linear phase interpolation and
accumulating filter for anti-aliasing (6-bit phase
accuracy)
•
Horizontal phase correct up and downscaling for
improved signal quality of scaled data, especially for
compression and video phone applications, with 6-bit
phase accuracy (1.2 ns step width)
•
Two independent programming sets for scaler part, to
define two ‘ranges’ per field or sequences over frames
•
Fieldwise switching between decoder part and
expansion port (X port) input
•
Brightness, contrast and saturation controls for scaled
outputs.
1.3
Vertical Blanking Interval (VBI) data decoder
and slicer
•
Versatile VBI data decoder, slicer, clock regeneration
and byte synchronization e.g. for World Standard
Teletext (WST), North American Broadcast Text System
(NABTS), close caption, Wide Screen Signalling (WSS),
etc.
1.4
Audio clock generation
•
Generation of a field-locked audio master clock to
support a constant number of audio clocks per video
field
•
Generation of an audio serial and left/right (channel)
clock signal.
2004 Mar 03
3
Philips Semiconductors
Product specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI data slicer and high performance scaler
1.5
Digital I/O interfaces
3
GENERAL DESCRIPTION
SAA7114
•
Real-time signal port (R port), inclusive continuous
line-locked reference clock and real-time status
information supporting RTC level 3.1 (refer to document
“RTC Functional Specification”
for details)
•
Bidirectional expansion port (X port) with half duplex
functionality (D1), 8-bit Y-C
B
-C
R
:
– Output from decoder part, real-time and unscaled
– Input to scaler part, e.g. video from MPEG decoder
(extension to 16-bit possible)
•
Video image port (I port) configurable for 8-bit data
(extension to 16-bit possible) in master mode (own
clock), or slave mode (external clock), with auxiliary
timing and handshake signals
•
Discontinuous data streams supported
•
32-word
×
4-byte FIFO register for video output data
•
28-word
×
4-byte FIFO register for decoded VBI data
output
•
Scaled 4 : 2 : 2, 4 : 1 : 1, 4 : 2 : 0, 4 : 1 : 0 Y-C
B
-C
R
output
•
Scaled 8-bit luminance only and raw CVBS data output
•
Sliced, decoded VBI data output.
1.6
Miscellaneous
The SAA7114 is a video capture device for applications at
the image port of VGA controllers.
The SAA7114 is a combination of a two-channel analog
preprocessing circuit including source selection,
anti-aliasing filter and ADC, an automatic clamp and gain
control, a Clock Generation Circuit (CGC), a digital
multistandard decoder containing two-dimensional
chrominance/luminance separation by an adaptive comb
filter and a high performance scaler, including variable
horizontal and vertical up and downscaling and a
brightness, contrast and saturation control circuit.
It is a highly integrated circuit for desktop video and similar
applications. The decoder is based on the principle of
line-locked clock decoding and is able to decode the colour
of PAL, SECAM and NTSC signals into ITU 601
compatible colour component values. The SAA7114
accepts CVBS or S-video (Y/C) as analog inputs from TV
or VCR sources, including weak and distorted signals.
An expansion port (X port) for digital video (bidirectional
half duplex, D1 compatible) is also supported to connect to
MPEG or a video phone codec. At the so called image port
(I port) the SAA7114 supports 8 or 16-bit wide output data
with auxiliary reference data for interfacing to VGA
controllers.
The target application for the SAA7114 is to capture and
scale video images, to be provided as a digital video
stream through the image port of a VGA controller, for
display via the frame buffer of the VGA, or for capture to
system memory.
In parallel SAA7114 also incorporates provisions for
capturing the serially coded data in the vertical blanking
interval (VBI data). Two principal functions are available:
1. To capture raw video samples, after interpolation to
the required output data rate, via the scaler
2. A versatile data slicer (data recovery) unit.
•
Power-on control
•
5 V tolerant digital inputs and I/O ports
•
Software controlled power saving standby modes
supported
•
Programming via serial I
2
C-bus, full read back ability by
an external controller, bit rate up to 400 kbits/s
•
Boundary scan test circuit complies with the
“IEEE Std.
1149.b1 - 1994”.
2
APPLICATIONS
•
Desktop video
•
Multimedia
•
Digital television
•
Image processing
•
Video phone applications.
The SAA7114 also incorporates field-locked audio clock
generation. This function ensures that there is always the
same number of audio samples associated with a field, or
a set of fields. This prevents the loss of synchronization
between video and audio during capture or playback.
The circuit is I
2
C-bus controlled (full write/read capability
for all programming registers, bit rate up to 400 kbits/s).
2004 Mar 03
4
Philips Semiconductors
Product specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI data slicer and high performance scaler
4
QUICK REFERENCE DATA
SYMBOL
V
DDD
V
DDD(C)
V
DDA
T
amb
P
A+D
Note
PARAMETER
digital supply voltage
digital core supply voltage
analog supply voltage
ambient temperature
analog and digital power dissipation
note 1
CONDITIONS
MIN.
3.0
3.0
3.1
0
−
SAA7114
TYP.
3.3
3.3
3.3
−
0.45
MAX. UNIT
3.6
3.6
3.5
70
−
V
V
V
°C
W
1. Power dissipation is measured in CVBS input mode (only one ADC active) and 8-bit image port output mode,
expansion port is 3-stated.
5
ORDERING INFORMATION
TYPE
NUMBER
SAA7114E
SAA7114H
PACKAGE
NAME
BGA156
LQFP100
DESCRIPTION
plastic ball grid array package; 156 balls; body 15
×
15
×
1.15 mm
plastic low profile quad flat package; 100 leads; body 14
×
14
×
1.4 mm
VERSION
SOT472-1
SOT407-1
2004 Mar 03
5
嵌入式系统
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