Datasheet

TVP5154A
SLES214C–DECEMBER 2007–REVISED SEPTEMBER 2010 www.ti.com
7.2.2 Analog Channel Controls Register
Address 01h
Default 15h
7 6 5 4 3 2 1 0
Reserved 1 0 1 Automatic gain control
Automatic gain control (AGC):
00 = AGC disabled (fixed gain value)
01 = AGC enabled (default)
10 = Reserved
11 = AGC frozen to the previously set value
7.2.3 Operation Mode Controls Register
Address 02h
Default 00h
7 6 5 4 3 2 1 0
Color burst Composite peak Color subcarrier Luma peak Power down
Fast lock mode TV/VCR mode
reference enable disable PLL frozen disable mode
Fast lock mode:
0 = Normal operation (default)
1 = Fast lock mode. Locks within three fields if stable input signal and forced video standard.
Color burst reference enable:
0 = Color burst reference for AGC disabled (default)
1 = Color burst reference for AGC enabled (not recommended)
TV/VCR mode:
00 = Automatic mode determined by the internal detection circuit (default)
01 = Reserved
10 = VCR (nonstandard video) mode (recommended when using a camera locked to the AC line frequency)
11 = TV (standard video) mode
With automatic detection enabled, unstable or nonstandard syncs on the input video forces the detector into the VCR mode. This turns off
the comb filters and turns on the chroma trap filter.
Composite peak disable:
0 = Composite peak protection enabled (default)
1 = Composite peak protection disabled
Color subcarrier PLL frozen:
0 = Color subcarrier PLL increments by the internally generated phase increment (default).
GLCO pin outputs the frequency increment.
1 = Color subcarrier PLL stops operating.
GLCO pin outputs the frozen frequency increment.
Luma peak disable
0 = Luma peak processing enabled (default)
1 = Luma peak processing disabled (recommended)
Power-down mode:
0 = Normal operation (default)
1 = Power-down mode. A/Ds are turned off and internal clocks are reduced to minimum.
30 Internal Control Registers Copyright © 2007–2010, Texas Instruments Incorporated
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