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PDF AN53 Data sheet ( Hoja de datos )
| Número de pieza | AN53 | |
| Descripción | The CS5322 Digital Filter | |
| Fabricantes | ETC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AN53 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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ICs for TV
AN5295NK
3-ch. sound signal processing single chip IC for TV (with I2C bus)
s Overview
The AN5295NK is a television-use 3-ch. sound sig-
nal processing IC which incorporates volume, tone con-
trol (L/R/C 3-ch.), and surround sound, sound AGC,
lower sound enforce (L/R 2-ch.) functions. All of the func-
tions (including changeover switch) including external I/
O port can be controlled by I2C bus.
s Features
• 3-ch. of volumes can be controlled independently (max.
attenuation is 75 dB or more)
• Center output can be switched, ether center input or in-
side L+R signal (for HDTV)
• Lower sound enforce effect (frequency and gain) can be
adjusted with external parts
• With L+R output
s Applications
• Television
Unit: mm
1 30
15 16
8.6±0.3
4.7±0.25
1.0±0.25
3.3±0.25
3° to 15°
10.16±0.25
0.35+–00..105
SDIP030-P-0400
s Block Diagram
Buffer
L-In 30
I2C I2C
Off
VCA On
L+R
Vol.+mute
Tone Vol. 19 L-Out
L+S Add
Buffer
L−R
PS
1st
stage
LPF
amp.1
R-In
Buffer
1
L+R
Off
VCA On
C-sel Loop
R−S Add
Tone Vol.
11 R-Out
Buffer
Buffer Level sense Control
B-Out/ 28
C-In
0 dB adj.
Bass add
On
Off
Tone Vol. 18 C-Out
Buffer
1
1 page  
ICs for TV
s Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
3
96 kΩ
40 kΩ
20 kΩ 20 kΩ
3
Description
AGC Adj.:
AGC on/off changeover
AGC off at 1.2 V or less.
4
250 Ω
18 kΩ
900 Ω
LS1:
AGC level sensor 1
1/2 VCC
4
5 CTL
Level 2 Level 1
LS2:
AGC level sensor 1, 2
AN5295NK
Voltage (V)
7
0.5 to 1.5
430 20
Ω kΩ
5
6
50 kΩ
6
50 kΩ
VREF :
Reference voltage to be stabilized
7
7 200 Ω
18 kΩ
18 kΩ
PS:
Phase shift pin
8 STB:
L/R/C-ch. bass DAC output pin
8 500 Ω
5.8 kΩ
500 Ω
20.5
kΩ
3V
20.5
kΩ
6
6
3±1
5
5 Page 
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
Without no AGC.
Possible also for 3D at 2-ch..
ADD: Add signal after AGC
C
Tone : LB : L-ch. bass fC
LT : L-ch. treble fC
RB: R-ch. bass fC
RT : R-ch. treble fC
CB: C-ch. bass fC
CT : C-ch. treble fC
11
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet AN53.PDF ] | |
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