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PDF NJW1161 Data sheet ( Hoja de datos )
| Número de pieza | NJW1161 | |
| Descripción | AUDIO PROCESSOR | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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P R E L I M I N A LY
NJW1161
AUDIO PROCESSOR with SRS 3D STEREO
www.daItasGhEeeNt4EuR.coAmL DESCRIPTION
The NJW1161 is an audio processor that includes SRS
3D stereo. It includes all of the audio signal processing
functions for TV such as tone control, balance, volume, mute,
and AGC.
The SRS 3D stereo technology reproduces a 3D stereo
surround sound effect using only two speakers.
All of internal status and variables are controlled by I2C
BUS interface.
I PACKAGE OUTLINE
NJW1161L
NJW1161M
I FEATURES
Operating Voltage 7.5 to 13V
I2C BUS Interface
AGC Circuit (It reduces volume difference among input sources.)
SRS 3D Stereo
Simulated Surround
Bi-CMOS Technology
Package Outline SDIP30, SDMP30
I BLOCK DIAGRAM
AGC
VOL1
VOL1
SRS
3D Stereo
&
Simulated
Surround
TONE
VOL2
I2C Bus
Interface
TONE
VOL2
Bias
-1-
1 page  
NJW1161
I I2C BUS BLOCK CHARACTERISTICS (SDA,SCL)
PARAMETER
www.datHasihgehetL4eu.vceoml Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
Low Level Output Voltage (3mA at SDA pin)
Maximum Output Current
Maximum Clock Frequency
Data Change Minimum Waiting Time
Data Transfer Start Minimum Waiting Time
Low Level Clock Pulse Width
High Level Clock Pulse Width
Minimum Start Preparation Waiting Time
Minimum Data Hold Time
Minimum Data Preparation Time
Rise Time
Fall Time
Minimum Stop Preparation Waiting Time
SYMBOL
VIH
VIL
IIH
IIL
VOL
IOL
fSCL
tBUF
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
tF
tSU:STO
MIN.
3.0
0
-
-
0
-3.0
-
4.7
4.0
4.7
4.0
4.7
5.0
250
-
-
4.0
I2C BUS Load Condition:
Pull up resistance 4kΩ (Connected to +5V)
Load capacitance 200pF (Connected to GND)
TYP.
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
MAX.
5.0
1.5
10
10
0.4
-
100
-
-
-
-
-
-
-
1.0
300
-
UNIT
V
V
µA
µA
V
mA
kHz
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
SDA
tBUF
SCL
tR
tHD:STA tLOW
PS
tF
tHD:DAT
tHIGH
tSU:DAT
tHD:STA
tSU:STA
Sr
tSU:STO
P
-5-
5 Page 
2. Tone Control
a) Bass: Setting the Cut-off frequency
Bass Filter
www.datasheet4u.com
12k 12k
8pin
23pin
C
b) Treble: Setting the Cut-off frequency
Treble Filter
10k
7pin
24pin
C
fC
=
2π
M
×C ×12k
M changes by gain setting of Tone.
M ≈ 2.65
M ≈ 3.45
M ≈ 8.10
(±15dB)
(±10dB)
(±5dB)
fC
=
2π
N
× C ×10k
N changes by gain setting of Tone.
N ≈ 0.76
N ≈ 0.58
N ≈ 0.25
(±15dB)
(±10dB)
(±5dB)
NJW1161
3. AUX1, AUX0 Terminal
AUX1/0 are enable to control external logic circuit is
Source current
: 1mA typ. (Ta=25˚C)
Sink current
: 0.5mA typ. (Ta=25˚C)
4. Capacitor for Reference Voltage (21pin)
22µF should be recommended for ripple filter connected to Vref terminal (21pin).
Reducing this capacity may cause to reduce the maximum attenuation level and to increase the output
noise.
- 11 -
11 Page | ||
| Páginas | Total 25 Páginas | |
| PDF Descargar | [ Datasheet NJW1161.PDF ] | |
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