ML6411 Datasheet, PDF (9/24 Pages) Micro Linear Corporation – Programmable Video Digitizer with Selectable Gain and Clamps

FUNCTIONAL DESCRIPTION (Continued)
RESET DEFAULT MODE
The ML6411 provides a RESET pin that programs the
Control Registers as described in Table 8. The RESET pin is
active HIGH. Basically, the ML6411 on RESET defaults to:
s S-Video mode. Ideally, for PAL S-Video since Preset
Mode (STDA and STDB bits) is set to unity gain boost
(G_PRESET = 1) for both Y and C (see Table 2)
s Y is clamped to 16. C is clamped to 128 (see Table 3)
and CLPA and CLPB bits)
ML6411
s UGC is set to unity gain (G_UGCA = 1 and G_UGCB = 1) to
either Y or C channels (see Table 4 and GNA and GNB
bits)
s Input pin are set for 2V_P-P inputs on both Y and C
MODE REGISTER/BIT VALUES
Dual CV Register D,
Bit D3= CV/S_Mode =1
CHANNEL
A
SIGNAL
CV1
INPUT
Y/CV1 pin
B
S-Video Register D,
A
Bit D3= CV/S_Mode =0
CV2 C/CV2 pin
Y Y/CV1 pin
Note: Volt Peak-to-Peak = V_P-P
B
C C/CV2 pin
OUPUT
A_OUT<7:0>
B_OUT<7:0>
A_OUT<7:0>
B_OUT<7:0>
OPTIONS
Gain Control Selection
(UGC, SGC) and Clamp
Selection.
1V_{P-P or} 2V_P-P inputs.
Serial Bus Programable.
Gain Control Selection
(UGC, SGC) and Clamp
Selection.
1V_{P-P or} 2V_P-P inputs.
Serial Bus Programable.
Table 1. Various Video Modes Using the ML6411 and Key Features
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