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STMicroelectronics Electronic Components Datasheet

STV2162 Datasheet

2H - VIDEO SCANNING PROCESSOR

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STV2162
2H - VIDEO SCANNING PROCESSOR
.VIDEO PART
USER CONTROL FUNCTIONS :
CONTRAST, BRIGHTNESS, SATURATION,
COLOR EQUALIZER
. RGB INPUT WITH FAST-BLANKING FOR
ON-SCREEN-DISPLAY / TELETEXT
. FAST BLANKING INPUT FOR CONTRAST
REDUCTION (TRANSPARENT MENU BOX)
. AVERAGE BEAM LIMITER FUNCTION WITH
CONTRAST AND BRIGHTNESS REDUCTION
. PAL/SECAM OR NTSC MATRIX SWITCHA-
BLE BY BUS
. AUTOMATIC CUT-OFF LOOP WITH INTE-
GRATED DIGITAL MEMORY AND LEAKAGE
CURRENT COMPENSATION
. FULL WHITE ADJUSTMENT VIA BUS
. BUS REPLY FOR TUBE COLD INFORMA-
TION AND CUT-OFF COUNTER STATUS
. APX (AUTO PIX) : ADAPTIVE CONTRAST
CONTROL
. COLOR MATCHING (IN CONNECTION WITH
WHITE STRETCH)
. APL (AUTO PEDESTAL) = ADAPTIVE
BRIGHTNESS
. WHITE STRETCH
. VERTICAL AND OVERSIZE BLANKING AC-
CORDING TO ALL ZOOMS
. INDEPENDENT RIGHT AND LEFT ADJUST-
MENT OF HORIZONTAL OVERSIZE BLANKING
SCANNING PART
. INTERNAL OR EXTERNAL 27MHz CLOCK
. VERTICAL SYNCHRONISATION OUTPUT
FOR VIDEO TEXT AND OSD DISPLAY
. PHI2 LOOP WITH INTERNAL LOOP FILTER
. PULSE OUTPUT FOR DRIVING HORIZON-
TAL OUTPUT STAGE
. VERTICAL COUNTDOWN CIRCUIT FOR
CLEAN VERTICAL DEFLECTION
. INTEGRATED VERTICAL SAWTOOTH GENE-
RATOR WITH AMPLITUDE CONTROL LOOP
. VERTICAL AND HORIZONTAL BUS ADJUSTA-
BLE SIZE CORRECTION (BREATHING) TO
ADAPT DEFLECTION SENSITIVITY TO THE
CURRENT BEAM
. PRODUCT PREVIEW
BUS ADJUSTED VERTICAL PARAMETERS:
.. VERTICAL AMPLITUDE, VERTICAL POSI-
TION AND S-CORRECTION
PANNING FOR VERTICAL DEFLECTION
BUS CONTROLLED EAST-WEST FUNCTION
. GENERATOR WITH INTEGRATED ERROR
AMPLIFIER
VARIABLE FIX-POINTS FOR S-CORRECTION
.. VERTICAL BLANKING AND EAST-WEST
CORNER CORRECTION
SUPER SANDCASTLE OUTPUT
VERTICAL POWER SAVE MODE
SMPS PART
. SMPS PULSE-WIDTH MODULATOR WITH
BUS CONTROLLED REFERENCE VOLTAGE
. SOFTSTART FOR SMPS MODULATOR,
EVEN IN CASE OF MISSING HORIZONTAL
CLOCK (27MHz)
. SOFTSTART FOR HORIZONTAL OUTPUT STAGE
. SMOOTH TRANSITION FROM SOFTSTART
TO NORMAL MODE
. GENERAL STANDBY MODE CONTROL
. PROTECTION CIRCUIT FOR OVERLOAD
. DETECTION (SHORT CIRCUITS) AND CON-
TROL OF SMPS MODULATOR
BUS REPLY FOR OVERLOAD
DESCRIPTION
The STV2162 is an I2C bus controlled Video and
Deflexion Processor for 2H-Deflection Television
Sets. The IC incorporates also an secondary SMPS
(Switch Mode Power Supply) controller with Soft-
start and Protection facilities.
SHRINK56
(Plastic Package)
ORDER CODE : STV2162
January 1997
This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1/14


STMicroelectronics Electronic Components Datasheet

STV2162 Datasheet

2H - VIDEO SCANNING PROCESSOR

No Preview Available !

STV2162
PIN CONNECTIONS
WHITE STRETCH CAPACITOR
WS
U INPUT
UIN
V INPUT
VIN
Y INPUT
YIN
APL CONTROL
APL
VERTICAL SYNC INPUT
VDFL
HORIZONTAL SYNC INPUT
HDFL
27MHz CLOCK
LDFL
NOT CONNECTED
NC
GROUND GNDLIN
COLOR MATCHING
COLM
VCC
NOT CONNECTED
VCCLIN
NC
BLUE CUT-OFF REFERENCE BCUTREF
GREEN CUT-OFF REFERENCE GCUTREF
RED CUT-OFF REFERENCE RCUTREF
SOFSTART CAPACITOR CSOFT
SERIAL CLOCK (I2C BUS)
SERIAL DATA (I2C BUS)
SCL
SDA
5V STANDBY (SHUNT REGULATOR)
V5V
LOOP ϕ1 LOW PASS FILTER
SLPF
VCC FOR SCANNING PART
REFERENCE RESISTOR FOR CURRENT
REGULATOR OUTPUT
VCC1
IREF
REG
VERTICAL SAWTOOTH ERROR OUTPUT FROUT
RESISTOR BRIDGE POSITIVE INPUT SENSEP
RESISTOR BRIDGE NEGATIVE INPUT SENSEM
THT MODULATION AND PROTECTION BREATH
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56 YOUT Y OUTPUT OF WHITE STRETCH
55 RES55 RESERVED
54 RES54 RESERVED
53 Y
Y INPUT VIDEO OF MAIN SIGNAL
52 NC
NOT CONNECTED
51 CONVAR CONTRAST VARIATION (FOR TRANSPARENT MENU)
50 FBTXT FAST BLANKING INPUT FOR TEXT/OSD
49 APX
AUTO PIX CAPACITOR
48 BTXT
BLUE INPUT TEXT/OSD
47 GTXT GREEN INPUT TEXT/OSD
46 RTXT RED INPUT TEXT/OSD
45 GNDVID GROUND FOR VIDEO PART
44 VCCVID
VCC FOR VIDEO PART
43 ICUTOFF CUT-OFF AND LEAKAGE MEASUREMENT
42 ROUT RED OUTPUT
41 GOUT GREEN OUTPUT
40 BOUT BLUE OUTPUT
39 VABL
AVERAGE BEAM LIMITER INPUT
38 HDRIVE OUTPUT FOR HORIZONTAL DRIVER
37 SMPSOUT PWM OUTPUT FOR SMPS
36 TXT_OUT SYNC OUTPUT FOR TELETEXT/OSD
35 SSC
SSC SUPER SANDCASTLE OUTPUT
34 GND1 GROUND FOR SCANNING PART
33 HFLY
HORIZONTAL FLYBACK INTERFACE
32 EWOUT EAST/WEST OUTPUT
31 SMPSIN VOLTAGE INPUT FOR SMPS ERROR AMPLIFIER
30 EWIN EAST/WEST INPUT OF ERROR AMPLIFIER
29 CVERT VERTICAL AGC CAPACITOR
PIN DESCRIPTION
Pin Name
Function
Description, Test Conditions, Remark
1 WS Time Constant White stretch time constant adjustment. External capacitor, internal 200kresistor.
2 UIN
Input
B-Y signal, AC coupling
3 VIN
Input
R-Y signal, AC coupling
4 YIN
Input
Luminance before white stretch, AC coupling
5 APL Time Constant Auto Pedestal (APL) time constant. External capacitor, internal 200kresistor
6 VDFL
Input
Vertical synchro
7 HDFL
Input
Horizontal synchro
8 LDFL
Input
27MHz Line Clock
9 NC
Reserved Not connected
10 GNDLIN Power supply Ground for Scanning Logic
11 COLM
Control
Color Matching strength. This pin must be grounded through a resistor .
Resistor value determines Color Matching effect :
0 (short Circuit) = no effect, 44k= maximal Colormatching.
12 VCCLIN Power supply VCC for Scanning Logic
13 NC
- Not Connected
14 BCUTREF Reference Clamping B. Capacitor 47nF against Ground : cut-off Black Reference.
15 GCUTREF Reference Clamping G. Capacitor 47nF against Ground : cut-off Black Reference.
2/14


Part Number STV2162
Description 2H - VIDEO SCANNING PROCESSOR
Maker ST Microelectronics
Total Page 14 Pages
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