Philips saa5281 DATASHEETS

INTEGRATED CIRCUITS
DATA SH EET
SAA5281
Integrated Video input processor and Teletext decoder (IVT1.8*)
Preliminary specification Supersedes data of June 1994 File under Integrated Circuits, IC02
1996 Nov 04
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
FEATURES
Complete Teletext and VPS decoding in a single package
Built-in 8K × 8 memory for up to 8 page storage
Enhanced mode allows 7 Fastext pages and 8 pages of
TOP to be captured
Ability to request only subtitle pages
Acquisition and decoding of VPS data
Data valid output available to indicate reception of
error-free VPS or packet 8/30/2 data
Software and hardware compatible with SAA5246 and SAA5248
Meshing display within boxes
Separate data checking algorithms and pointers for
each acquisition channel
24 : 18 Hamming checker
Automatic packet 26 extension character processing
Indication of Line 23 for external use
13.5 MHz clock output to drive external microcontroller
Detection of Spanish transmissions to disable
flicker-stopper
Compatible with Philips’ one-chip TV IC (TDA836X) for scan-locking applications.
SAA5281
DESCRIPTION
The IVT1.8* is a single-chip Teletext decoder IC for decoding 625-line based World System Teletext transmissions. The device is based on IVT1.0VPS and has reception facilities for the 5 MHz biphase VPS signal. It is intended for use in video recorders, in particular to implement the VPT facility (VCR programming via Teletext). With suitable software both VPT standards (EBU PDC System A and System B) can be accommodated to allow operation from any European VPT transmission. Automatic processing of packet 26 transmissions is also possible. No external memory is required as an 8K × 8 DRAM is included on-chip for up to 8 page storage. An enhanced mode allows 7 Fastext pages to be stored, with one chapter used to store extension packets.
QUICK REFERENCE DATA
SYMBOL PARAMETER MIN. TYP. MAX. UNIT
V
DD
I
DD
V
sync
V
vid(p-p)
f
xtal
T
amb
ORDERING INFORMATION
TYPE NUMBER
SAA5281P DIP48 plastic shrink dual in-line package; 32 leads (400 mil) SOT240-1 SAA5281ZP SDIP52 plastic shrink dual in-line package; 52 leads (600 mil) SOT247-1 SAA5281GP QFP64 plastic quad flat package; 64 leads
supply voltage 4.5 5.0 5.5 V supply current 75 150 mA sync voltage amplitude 0.1 0.3 0.6 V video input voltage amplitude
(peak-to-peak value) crystal frequency 27 MHz operating ambient temperature 20 +70 °C
NAME DESCRIPTION VERSION
(lead length 1.95 mm); body 14 × 20 × 2.8 mm
0.7 1.0 1.4 V
PACKAGE
SOT319-2
1996 Nov 04 2
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
BLOCK DIAGRAM
BLAN
handbook, full pagewidth
ODD/EVEN
(or DV)
V
DD1VDD2
110
POWER-ON
RESET
21
24 TO 18
HAMMING
DECODER
Y
22 19 20 18 15 16 17
RGBREF
COR
DISPLAY
RGB
PACKET 26
PROCESSING
ENGINE
DRAM
REFRESH
AND
TIMING
SAA5281
8K x 8 DRAM
MEMORY
INTERFACE
REF
IREF
AND DECODING
CONVERTER
DATA SLICER
REGENERATOR
6
ANALOG
9
REFERENCE GENERATOR
V
SS1
TELETEXT
AQUISITION
SERIAL-TO
-PARALLEL
AND CLOCK
14 255
V
SS2
ANALOG
DIGITAL
CONVERTER
V
SS3
VPS
ACQUISITION
AND
DECODING
TELETEXT
OR
VPS CONTROL
TO
CVBS BLACK STTV/LFB
INPUT CLAMP
AND SYNC
SEPARATOR
78 12 36 2 3
SAA5281
ANALOG OUTPUT BUFFER
2
I C-BUS
INTERFACE
TIMING
CHAIN
DISPLAY CLOCK PHASE-LOCKED
LOOP
27 MHz CLOCK
GENERATOR
CLK EN
OSCOUT
OSCIN
24
SDA
23
SCL
44
LINE 23
VCR/FFB
13
11
POL CLK O/P
37
4
OSCGND
MBD783
1996 Nov 04 3
Fig.1 Block diagram; pin numbers for DIP48 (SOT240-1).
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
PINNING
SYMBOL
SOT240-1 SOT247-1 SOT319-2
V
DD1
1 52 11 +5 V supply 1 OSCOUT 2 1 13 27 MHz crystal oscillator output OSCIN 3 2 14 27 MHz crystal oscillator input OSCGND 4 3 15 0 V crystal oscillator ground V
SS1
5 4 and 5 16 0 V ground REF+ 6 6 18 positive reference voltage for ADC; this pin should be connected
BLACK 7 8 19 video black level storage input/output; this pin should be
CVBS 8 9 20 composite video input; a positive-going 1 V (peak-to-peak) input
IREF 9 10 21 reference current input, connected to ground via a 27 k resistor V
DD2
10 11 22 +5 V supply 2 POL 11 12 23 STTV/LFB/FFB polarity selection input STTV/LFB 12 13 24 sync to TV output line flyback input; function controlled by an
VCR/FFB 13 14 27 PLL time constant switch/field input; function controlled by an
V
SS2
14 15 28 0 V ground; connected to V R 15 16 30 dot rate character output of the RED colour information G 16 17 32 dot rate character output of the GREEN colour information B 17 18 33 dot rate character output of the BLUE colour information RGBREF 18 19 34 input DC voltage to define the output high level on the RGB pins BLAN 19 20 35 dot rate fast blanking output COR 20 21 36 programmable output to provide contrast reduction of the TV
ODD/EVEN
21 22 37 in ODD/EVEN mode a 25 Hz output synchronized with the CVBS (or DV)
Y 22 23 38 dot rate character output of teletext foreground colour information;
SCL 23 24 39 serial clock input for I
SDA 24 25 40 serial data port for the I
V
SS3
25 26 44 0 V ground
PIN
DESCRIPTION
to ground via a 100 nF capacitor
connected to ground via a 100 nF capacitor
is required, connected via a 100 nF capacitor
internal register bit (scan sync mode)
internal register bit (scan sync mode)
for normal operation
SS1
picture for mixed text and picture displays or when viewing newsflash/subtitle pages; open-drain output
input field sync pulses to produce a non-interlaced display by adjustment of the vertical deflection currents; in DV mode a VPT data valid signal is used to indicate reception of error-free VPS or 8/30 format 2 data
open-drain output
2
C-bus; it can still be driven HIGH during
power-down of the device
2
C-bus, open-drain output; it can still be
driven HIGH during power-down of the device
1996 Nov 04 4
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
SYMBOL
SOT240-1 SOT247-1 SOT319-2
i.c. 26 to 35,
38 to 43,
45 to 48
CLK EN 36 39 56 clock enable input to enable the clock output (CLP O/P pin 37);
CLK O/P 37 40 59 13.5 MHz clock output to drive an external microcontroller LINE 23 44 47 4 output for indication of Line 23 for use with external circuitry n.c. 7, 33, 34 9, 10, 12,
PIN
27 to 32, 35 to 38, 41 to 46,
48 to 51
1to3, 5to8,
45 to 53,
55, 61,
63 to 64
17, 25, 26,
29, 31,
41 to 43,
54, 57, 58,
60, 62
DESCRIPTION
internally connected; normally open-circuit
internal pull-down normally disables clock
not connected; normally open-circuit
1996 Nov 04 5
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
handbook, halfpage
V
DD1
OSCOUT
OSCIN
OSCGND
V
SS1
REF+
BLACK
CVBS
IREF
V
DD2 POL
STTV/LFB
VCR/FFB
V
SS2
RGBREF
BLAN
COR
ODD/EVEN
(or DV)
SCL SDA
MBD784
48 i.c.
i.c.
47
i.c.
46 45
i.c. LINE 23
44
i.c.
43 42
i.c. i.c.
41
i.c.
40
i.c.
39 38
i.c. CLK O/P
37 36
CLK EN i.c.
35
i.c.
34 33
i.c.
32
i.c.
31
i.c. i.c.
30 29
i.c.
28
i.c. i.c.
27
i.c.
26
V
25
SS3
1 2 3 4 5 6 7 8
9 10 11 12
SAA5281
13 14 15
R G
16 17
B
18 19 20
21 22
Y
23 24
handbook, halfpage
OSCOUT
OSCGND
STTV/LFB
VCR/FFB
ODD/EVEN
OSCIN
V
SS1
V
SS1
REF+
n.c.
BLACK
CVBS
IREF
V
DD2 POL
V
SS2
RGBREF
BLAN
COR
(or DV)
SCL SDA
V
SS3
SAA5281
1 2 3 4 5 6 7 8
9 10 11 12
SAA5281
13 14 15
R
16
G
17
B
18 19 20
21 22
Y
23 24 25 26
MBD785
52 51 50 49 48 47 46 45 44 43 42 41
40 39 38
37 36 35
34 33 32 31
30 29 28 27
V
DD1
i.c. i.c. i.c. i.c. LINE 23 i.c. i.c. i.c. i.c. i.c. i.c. CLK O/P CLK EN i.c. i.c. i.c. i.c. n.c. n.c. i.c. i.c. i.c. i.c. i.c. i.c.
Fig.2 Pin configuration; SOT240-1 (DIP48).
1996 Nov 04 6
Fig.3 Pin configuration; SOT247-1 (SDIP52).
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
handbook, full pagewidth
i.c.
n.c.
i.c.
i.c. 64
63
62
1
i.c. i.c.
2
i.c.
3
LINE 23
OSCOUT
OSCGND
4
i.c.
5
i.c.
6 7
i.c. i.c.
8
n.c.
9
10
n.c.
V
11
DD1
n.c.
12 13
OSCIN
14 15
V
16
SS1
17
n.c.
18
REF+
19
BLACK B
n.c.
61
60
CLK O/P
n.c.
59
58
SAA5281
n.c.
57
i.c.
CLK EN 56
55
n.c. 54
i.c. 53
i.c. 52
51
i.c.
50
i.c. i.c.
49
i.c.
48 47
i.c.
46
i.c. i.c.
45
V
44
n.c.
43 42
n.c.
41
n.c.
40
SDA SCL
39 38
Y ODD/EVEN
37
(or DV)
36
COR BLAN
35 34
RGBREF
33
SAA5281
SS3
20
21
22
23
24
25
CVBS
IREF
DD2
V
POL
n.c.
STTV/LFB
Fig.4 Pin configuration; SOT319-2 (QFP64).
1996 Nov 04 7
26
n.c.
27
28
SS2
V
VCR/FFB
29 n.c.
30
31
32
n.c.
G
MBH665
R
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
QUALITY AND RELIABILITY
This device will meet Philips Semiconductors General Quality Specification for Business group
Circuits SNW-FQ-611-Part E”
Group A Table 1 Acceptance tests per lot
TEST REQUIREMENTS
Mechanical cumulative target: <100 ppm Electrical cumulative target: <100 ppm
Group B Table 2 Processability tests (by package family)
TEST REQUIREMENTS
Solderability <7% LTPD Mechanical <15% LTPD Solder heat resistance <15% LTPD
. The principal requirements are shown in Tables 1 to 4.
(1)
(1)
SAA5281
“Consumer Integrated
Group C Table 3 Reliability tests (by process family)
TEST CONDITIONS REQUIREMENTS
Operational life 168 hours at Tj= 150 °C <1500 FPM; equivalent to
<100 FITS at Tj=70°C
Humidity life temperature, humidity, bias
<2000 FPM 1000 hours, 85 °C, 85% RH (or equivalent test)
Temperature cycling performance T
stg(min)
to T
stg(max)
<2000 FPM
Table 4 Reliability tests (by device type)
TEST CONDITIONS REQUIREMENTS
ESD and latch-up ESD Human body model
<15% LTPD 2000 V, 100 pF, 1.5 k
ESD Machine model
<15% LTPD 200 V, 200 pF, 0
latch-up 100 mA, 1.5 × V
DD
<15% LTPD (absolute maximum)
Notes to Tables 1 to 4
1. ppm = fraction of defective devices, in parts per million. LTPD = Lot Tolerance Percent Defective. FPM = fraction of devices failing at test condition, in Failures Per Million. FITS = Failures In Time Standard.
(1)
(1)
1996 Nov 04 8
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
LIMITING VALUES
In accordance with Absolute Maximum Rating System (IEC 134).
SYMBOL PARAMETER MIN. MAX. UNIT
V
DD
V
I
V
O
I
O
I
IOK
T
amb
CHARACTERISTICS
= 5 V ±10%; T
V
DD
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supplies
V
DD
I
DDtot
Inputs
supply voltage (all supplies) 0.3 +6.5 V input voltage (any input) 0.3 VDD+ 0.5 V output voltage (any output) 0.3 VDD+ 0.5 V output current (each output) −±10 mA DC input or output diode current −±20 mA operating ambient temperature 20 +70 °C
= 20 to +70 °C; pin numbers refer DIP48 package; unless otherwise specified.
amb
supply voltage 4.5 5.0 5.5 V total supply current 75 150 mA
CVBS V
sync
V
burst(p-p)
sync voltage amplitude 0.1 0.3 0.6 V colour burst amplitude
0.0 0.3 4.0 V
(peak-to-peak value)
t
d(sync)
delay from CVBS to TCS
150 0 +150 ns output from STTV buffer (nominal video, average of leading/trailing edge)
t
d(sync)
change in sync delay between
0 25 ns all black and all white video input at nominal levels
V
vid(p-p)
video input voltage amplitude
0.7 1.0 1.4 V
(peak-to-peak value)
V
dat(text)
teletext data voltage amplitude 0.29 0.46 0.71 V
f/f display PLL capture range ±7 −−% Z
source
V
I
source impedance −−250 input switching voltage level of
1.7 2.0 2.3 V
sync separator
Z
I
C
I
input impedance 2.5 5.0 k input capacitance −−10 pF
IREF R
gnd
V
i
resistor to ground 27 k input voltage 0.5V
DD
V
1996 Nov 04 9
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
POL V
IL
V
IH
I
LI
C
I
LFB V
IL
V
IH
I
LI
I
Imax
t
dLFB
VCR/FFB V
IL
V
IH
I
LI
I
Imax
RGBREF V
IL
I
LI
SCL V
IL
V
IH
I
LI
C
I
f
clk
t
r
t
f
Inputs/outputs
LOW level input voltage 0.3 +0.8 V HIGH level input voltage 2.0 VDD+ 0.5 V input leakage current VI= 0 to V
DD
10 +10 µA
input capacitance −−10 pF
LOW level input voltage 0.3 tbf V HIGH level input voltage tbf VDD+ 0.5 V input leakage current VI= 0 to V
DD
10 +10 µA maximum input current note 1 1 +1 mA delay between LFB front edge
250 ns and input video line sync
LOW level input voltage 0.3 +0.8 V HIGH level input voltage 2.0 VDD+ 0.5 V input leakage current VI= 0 to V
DD
10 +10 µA maximum input current note 1 1 +1 mA
LOW level input voltage 0.3 V input leakage current VI= 0 to V
DD
10 +10 µA
DD
V
LOW level input voltage 0.3 +1.5 V HIGH level input voltage 3.0 VDD+ 0.5 V input leakage current VI= 0 to V
DD
10 +10 µA input capacitance −−10 pF clock frequency 0 100 kHz input rise time between 10% and 90% −−2µs input fall time between 90% and 10% −−2µs
C
RYSTAL OSCILLATOR (OSCIN; OSCOUT)
V
osc(p-p)
oscillator voltage amplitude (peak-to-peak value)
G
v
G
m
C
I
C
fb
small signal voltage gain 1.0 mutual conductance 5.0 −−mS input capacitance −−10 pF feedback capacitance 1 pF
1996 Nov 04 10
1.0 V
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
BLACK C
black
V
black
I
LI
SDA (OPEN-DRAIN INPUT/OUTPUT) V
IL
V
IH
V
OL
I
LI
C
I
C
L
t
r
t
f
t
f
Outputs
storage capacitor to ground 100 nF black level voltage for nominal
1.8 2.15 2.5 V sync amplitude
input leakage current VI= 0 to V
DD
10 +10 µA
LOW level input voltage 0.3 +1.5 V HIGH level input voltage 3.0 VDD+ 0.5 V LOW level output voltage IOL= 3 mA 0 0.5 V input leakage current VI= 0 to V
DD
10 +10 µA input capacitance −−10 pF load capacitance −−400 pF input rise time between 10% and 90% −−2µs input fall time between 90% and 10% −−2µs output fall time between 3 V and 1 V −−200 ns
STTV G
sttv
gain of STTV relative to video
0.9 1.0 1.1 input
V V
tcs
tcs
TCS voltage amplitude 0.2 0.3 0.45 V DC shift between TCS output
−−0.15 V and nominal video output
I
O
C
L
output drive current −−3.0 mA load capacitance −−100 pF
R, G AND B V
OL
V
OH
LOW level output voltage IOL= 2 mA 0 0.2 V HIGH level output voltage IOH= 1.6 mA;
V
RGBREF
< VDD− 2V;
V
RGBREF
0.25
V
RGBREFVRGBREF
+ 0.5
note 2
| output impedance −−200
|Z
o
C
L
t
r
t
f
load capacitance −−50 pF output rise time between 10% and 90% −−20 ns output fall time between 90% and 10% −−20 ns
BLAN V
OL
V
OH
C
L
t
r
t
f
LOW level output voltage IOL= 1.6 mA 0 0.4 V HIGH level output voltage IOH= 0.2 mA 1.1 −−V
I
=0mA −−2.8 V
OH
load capacitance −−50 pF output rise time between 10% and 90% −−20 ns output fall time between 90% and 10% −−20 ns
V
1996 Nov 04 11
Philips Semiconductors Preliminary specification
Integrated Video input processor and
SAA5281
Teletext decoder (IVT1.8*)
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
ODD/EVEN OR DV V
OL
V
OH
C
L
t
r
t
f
COR AND Y(OPEN-DRAIN OUTPUTS) V
OH
V
OL
C
L
t
f
I
LO
t
skew
2
C-bus timing (see Fig.5)
I
t
LOW
t
HIGH
t
SU;DAT
t
HD;DAT
t
SU;STO
t
BUF
t
HD;STA
t
SU;STA
LOW level output voltage IOL= 1.6 mA 0 0.4 V HIGH level output voltage IOH= 1.6 mA VDD− 0.4 V
DD
V load capacitance −−120 pF output rise time between 0.6 V and
−−50 ns
2.2 V
output fall time between 0.6 V and
−−50 ns
2.2 V
HIGH level pull-up output
−−VDDV
voltage LOW level output voltage IOL= 2 mA 0 0.4 V
= 5 mA 0 1.0 V
I
OL
load capacitance −−25 pF output fall time load resistor of 1.2 k
−−50 ns to VDD; measured between VDD− 0.5 V and 1.5 V
output leakage current VI= 0 to V skew delay between display
DD
10 +10 µA
−−20 ns
outputs R, G, B, COR, Y and BLAN
SCL clock LOW time 4.0 −−µs SCL clock HIGH time 4.0 −−µs data set-up time 250 −−ns data hold time 170 −−ns set-up time from clock HIGH
4.0 −−µs
to STOP ST ART set-up time following a
4.0 −−µs
STOP START hold time 4.0 −−µs ST ART set-up time following a
4.0 −−µs
clock LOW-to-HIGH transition
Notes
1. This current is the maximum allowed into the inputs when line and field flyback signals are connected to these inputs. Series current limiting resistors must be used to limit the input currents to ±1 mA.
2. Voltage level VOH for R, G and B outputs is taken to be the mean value during the output HIGH time. If higher R, G and B voltage VOH levels are required RGBREF voltage level may be raised and a pull-up resistor used at each of these pins provided current specification (IOL) is not exceeded.
1996 Nov 04 12
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
handbook, full pagewidth
SDA
t
LOW
SCL
SDA
MBC764
t
BUF
t
HD;STA
t
r
t
SU;STA
t
HD;DAT
t
HIGH
SAA5281
t
f
t
SU;DAT
t
SU;STO
TIMING CHAIN
handbook, full pagewidth
LSP
(TCS)
R, G, B, Y
(1)
R, G, B, Y
(1)
0 4.66
0
0
Fig.5 I2C-bus timing.
40 µs
display period
16.67
lines 42 to 291 inclusive (and 355 to 604 inclusive interlaced)
display period
41
56.67 µs
64 µs
291
line numbers
MLA662 - 1
312
(1) Also BLAN in character and box blanking.
1996 Nov 04 13
Fig.6 Display output timing (a) line rate (b) field rate.
Philips Semiconductors Preliminary specification
Integrated Video input processor and Teletext decoder (IVT1.8*)
64 µs
64 µs
64 µs
59.33
SAA5281
MLA037 - 2
0 4.66
32 34.33
0 2.33
handbook, full pagewidth
27.33 32
0
1 2 3456 7
625
(312)
624
(311)
623
(310)
622
(309)
621
(308)
309 310 311 312 313 314 (1) 315 (2) 316 (3) 317 (4) 318 (5) 319 (6) 320 (7)
Fig.7 Composite sync waveforms.
308 309 310 311 312 1 2 3 4 5 6 7
LSP
(Line Sync Pulse)
1996 Nov 04 14
EP
(Equalizing Pulse)
BP
(Broad Pulse)
TCS interlaced
TCS interlaced
TCS non-interlaced
LSP, EP and BP are combined to give TCS as shown. All timings are measured from falling edge of LSP.
Line numbers placed in the middle of the line.
Equivalent count numbers in brackets.
Loading...
+ 31 hidden pages