SAA7109 PHILIPS [NXP Semiconductors], SAA7109 Datasheet - Page 154

• Manufacturer Part Number: SAA7109
• Description: PC-CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
18.2.2.4
Table 152 Analog input control 2 (AICO2); 03H[6:0]
Note
1. HLNRS = 1 should not be used in combination with WPOFF = 0.
18.2.2.5
Table 153 Analog input control 3 (AICO3); static gain control channel 1; 03H[0] and 04H[7:0]
18.2.2.6
Table 154 Analog input control 4 (AICO4); static gain control channel 2; 03H[1] and 05H[7:0]
2004 Mar 16
BIT
6
5
4
3
2
1
0
DECIMAL
DECIMAL
PC-CODEC
VALUE
VALUE
...144
145...
...511
...144
145...
...511
0...
0...
HL not reference select
AGC hold during vertical
blanking period
white peak control off
automatic gain control
integration
gain control fix
static gain control channel 2
sign bit
static gain control channel 1
sign bit
Subaddress 03H
Subaddress 04H
Subaddress 05H
DESCRIPTION
GAIN
GAIN
(dB)
(dB)
+6
+6
0
0
0
0
3
3
SIGN BIT
SIGN BIT
03H[0]
03H[1]
GAI18
GAI28
0
0
0
1
0
0
0
1
SYMBOL VALUE
WPOFF
HOLDG
HLNRS
GAFIX
GAI28
GAI18
VBSL
GAI17
GAI27
0
1
1
1
0
1
1
1
GAI16
GAI26
1
0
0
0
1
1
0
1
0
1
(1)
(1)
0
0
0
1
0
0
0
1
normal clamping if decoder is in unlocked state
reference select if decoder is in unlocked state
short vertical blanking (AGC disabled during equalization
and serration pulses)
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)
white peak control active
white peak control off
AGC active
AGC integration hold (freeze)
automatic gain controlled by MODE3 to MODE0
gain is user programmable via GAI[17:10] and GAI[27:20]
154
GAI15
GAI25
0
0
0
1
0
0
0
1
CONTROL BITS 7 TO 0
CONTROL BITS 7 TO 0
GAI14
GAI24
0
1
1
1
0
1
1
1
see Table 154
see Table 153
GAI13
GAI23
SAA7108E; SAA7109E
FUNCTION
0
0
0
1
0
0
0
1
GAI12
GAI22
0
0
0
1
0
0
0
1
Product specification
GAI11
GAI21
0
0
0
1
0
0
0
1
GAI10
GAI20
0
0
1
1
0
0
1
1