AN5295NK Datasheet, PDF (11/11 Pages) Panasonic Semiconductor – 3-ch. sound signal processing single chip IC for TV with I2C bus

ICs for TV
s Technical Information (continued)
• I²C bus (continued)
3. Sub address byte and data byte format (continued)
1) L-ch. Vol., R-ch. Vol., C-ch. Vol.
Min. at data = 00
Max. at data = 3F
2) L/R/C treble, L/R/C bass
Min. at data = 0
Max. at data = F
3) Surround effect
Min. at data = 0
Max. at data = F
4) Switches (except C-ch. mute SW)
Off at data = 0
On at data = 1
s Application Circuit Example
5) DAC1
Low (0 V) at data = 0
High (5 V) at data = 1
6) C-In select
L+R in at data = 0
C-In at data = 1
7) C-ch. mute
Off at data = 0
On at data = 1
AN5295NK
100 µF
L-In
Buffer
30
10 µF
I²C ^I2C
Off
VCA ^On
R-In
10 µF
Buffer
1
L+R
Off
VCA ^On
L+S
L+R
L−R
PS
1st
stage
LPF
amp.1
R−S
C-sel _Loop
Vol.+mute
Tone Vol.
19 ^L-Out
Add
10 µF
Buffer
Add
Tone Vol.
11 ^R-Out
10 µF
Buffer
B-Out/
C-In
Buffer
28
Level sense
Control
10 µF
0 dB adj.
24 kΩ
AGC Adj.
12 V
Bass add
On
Off
Tone Vol.
18 ^C-Out
10 µF
Buffer
C-In: At HV
C
Without no AGC.
Possible also for 3D at 2-ch..
ADD: Add signal after AGC
Tone : LB : L-ch. bass f_C
LT : L-ch. treble f_C
RB: R-ch. bass f_C
RT : R-ch. treble f_C
CB: C-ch. bass f_C
CT : C-ch. treble f_C
11