STV2050A STMicroelectronics, STV2050A Datasheet - Page 50

• Manufacturer Part Number: STV2050A
• Description: IC DGTL CONVERGENCE PROC 80-PQFP
• Manufacturer: STMicroelectronics
• Type: Videor

Specifications of STV2050A

• Applications: HDTV
• Mounting Type: Surface Mount
• Package / Case: 80-MQFP, 80-PQFP
• Case: QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

STV2050A - CONVERGENCE
The insertion type is selected using the GOS bit in the D4 register.
The direction is selected by the HVM bit in the D4 register.
9.7.3 Gain Cursor Mode
See
This mode is normally used in conjunction with the corresponding video pattern. (Refer to
tion 7.5 "GAIN ADJUSTMENT LINES" on page
The STV2050A can generate a special convergence signal (cursor) controlled by the GCD bit
in the E3 register.
The cursor action is selected by the DHV bit in the E3 register.
During the gain measuring lines:
– The dynamic values are replaced for each channel by the CRH[7:0] and CRV[7:0] bits for
– The polarity of these latter values may be changed using the PMH and PMV bits in the D5
– The gain value is stored in the E0 register for the coarse value, but the fine values are stored
In vertical cursor mode, the resulting values applied to the DACs are first positive, then in-
verted on the following TV line. In horizontal mode, the values are inverted at each TV line.
9.7.4 Field Offset Cursor Mode
See
This mode is normally used in conjunction with the corresponding video pattern. (Refer to
tion 7.5 "GAIN ADJUSTMENT LINES" on page
50/83
red, CGH[7:0] and CGV[7:0] bits for green and CBH[7:0] and CBV[7:0] for blue in the DC and
DD registers for horizontal and vertical values, respectively.
register for horizontal and vertical values, respectively.
in the MVR[7:0] bits for red, MVG[7:0] bits for green and MVB[7:0] bits for blue in the E8 reg-
ister.
Figure 27 "Gain Cursors" on page
Figure 27 "Gain Cursors" on page
GOS
HVM
GCD
DHV
0: Field offset canceller
1: Gain compensation
0 = Vertical
1 = Horizontal
0 = Cursor Off
1 = Cursor On
0 = Horizontal Cursor
1 = Vertical Cursor
51.
51.
38).
38.)
Sec-
Sec-