SAA7144 NXP Semiconductors, SAA7144 Datasheet - Page 37

• Manufacturer Part Number: SAA7144
• Manufacturer: NXP Semiconductors

Specifications of SAA7144

• Package Type: LQFP
• Lead Free Status / RoHS Status: Compliant

Philips Semiconductors
9397 750 14454
Product data sheet
9.3.4 Subaddress 03h
Table 28:
Bit
7
6
5
4
3
2
1
0
Fig 25. Mode switch for video inputs AI11 or AI12.
Symbol
-
HLNRS
VBSL
WPOFF
HOLDG
GAFIX
-
GAI18
Analog control 2 - bit description
Rev. 01 — 21 April 2005
Description
not used; has to be set to logic 0
HL not reference select
AGC hold during vertical blanking period
white peak off
automatic gain control integration
gain control fix
not used; has to be set to logic 0
sign bit of gain control; see
0 = normal clamping if decoder is in unlocked state
1 = reference select if decoder is in unlocked state
0 = short vertical blanking (AGC disabled during equalization and
serration pulses)
1 = long vertical blanking (AGC disabled from start of
pre-equalization pulses until start of active video (line 22 for 60 Hz,
line 24 for 50 Hz)
0 = white peak control active
1 = white peak off
0 = AGC active
1 = AGC integration hold (freeze)
0 = automatic gain controlled by MODE[3:0]
1 = gain is user programmable via GAI1
AI12
AI11
MODE[3:0]
ADC
Table 29
001aab319
Quadruple video input processor
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
SAA7144HL
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