Datasheet

TVP5158, TVP5157, TVP5156
SLES243G –JULY 2009–REVISED APRIL 2013 www.ti.com
Table 4-43. Operation Mode Control
Subaddress 60h
Default 00h
7 6 5 4 3 2 1 0
V-PLL free run Reserved H-PLL Response Time V-bit control Freeze C-PLL Reserved
V-PLL free run mode
0 Disabled (default)
1 Enabled
H-PLL Response Time
When in the Normal mode, the horizontal PLL (H-PLL) response time is set to its slowest setting. This mode improves noise
immunity and provides a more stable output line frequency for standard TV signal sources (for example, TV tuners, DVD players,
video surveillance cameras, etc.).
When in the Fast mode, the H-PLL response time is set to its fastest setting. This mode enables the H-PLL to respond more
quickly to large variations in the horizontal timing (for example, VCR head switching intervals). This mode is recommended for
VCRs and also cameras locked to the AC power-line frequency.
When in the Adaptive mode, the H-PLL response time is automatically adjusted based on the measured horizontal phase error. In
this mode, the H-PLL response time typically approaches its slowest setting for most standard TV signal sources and approaches
its fastest setting for most VCR signal sources.
00 Adaptive (default)
01 Reserved
10 Fast
11 Normal
V-bit control mode
0 Vertical blanking interval remains constant as total number of lines per frame varies (default)
1 Active video interval remains constant as total number of lines per frame varies
Freeze C-PLL
0 Normal operation (default)
1 Freeze color PLL
Table 4-44. Color PLL Speed Control
Subaddress 61h
Default 09h
7 6 5 4 3 2 1 0
Reserved CPLL speed [3:0]
CPLL speed [3:0]
Color PLL speed control
0000
to Reserved
1000
1001 9: Faster (default)
1010 10
1011 11: Slower
1100
to Reserved
1111
62 Internal Control Registers Copyright © 2009–2013, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TVP5158 TVP5157 TVP5156