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PDF NJW1177 Data sheet ( Hoja de datos )
| Número de pieza | NJW1177 | |
| Descripción | Audio Processor | |
| Fabricantes | JRC | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJW1177 (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
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www.DataSheet4U.com
NJW1177
AUDIO PROCCESOR with SRS&BBE&ealaBASS
s GENERAL DESCRIPTION
NJW1177 is a sound processor includes all of the
functions required to process the audio signal for TV,
such as volume, balance, mute, tone control,
AGCfunctions. And also It performs NJRC original
dynamic bass boost technology “ealaBASS” provides
graceful bass sound with low distortion. All of internal
states and variables are controlled by I2C BUS
interface. In addition to SRS and BBE, since
NJW1177 builds in ealaBASS, it reproduces clearly,
natural and rich bass sound
s PACKAGE OUTLINE
NJW1177V
s FEATURES
q Operating Voltage
+7.5 to +13V
q I2C BUS interface
q BBE Sound Enhancement (Low Boost and High Boost: 15dB max.)
qSRS 3D Stereo
qeala
qeala BASS (Dynamic Bass Boost)
qSimulated Stereo
qAGC Circuit
qLow Noise VCA
qBi-CMOS technology
qPackage Outline
SSOP44
s BLOCK DIAGRAM
AGC
VOL1
VOL1
TONE
TONE
SRS
3D Stereo
&
eala
&
Simulated
Surround
BBE
eala
BASS
BBE
VOL2
VOL2
I2C
Bus
Logic
Bias
–1–
1 page  
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NJW1177
sI2C BUS CHARACTERISTICS (SDA, SCL)
I2C BUS Load Condition: Pull Up Resistance R=4kΩ (Connected to +5V), Load Capacitance C=200pF (Connected to GND)
PARAMETER
SYM
BOL
STANDARD
MIN TYP MAX
FAST
UNIT
MIN TYP MAX
Low Level Input Voltage
High Level Input Voltage
Hysteresis of Schmitt Trigger Inputs
LOW level Output Voltage (3mA at SDA pin)
Output Fall Time From VIHmin to VILmax with a Bus
Capacitance from 10pF to 400pF
Pulse width of spikes which must be suppressed by the
input filter
Input Current each I/O pin with an Input Voltage
between 0.1 and 0.9VDDmax
Capacitance for each I/O pin
SCL Clock Frequency
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
Data Change Minimum Waiting Time
Capacitive load for each bus line
Noise Margin at the Low Level
Noise Margin at the High Level
VIL
VIH
Vhys
VOL
tof
tSP
Ii
Ci
fSCL
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tr
tf
tSU:STO
tBUF
Cb
VnL
VnH
0.0
2.7
-
0
-
-
-10
-
-
4.0
4.7
4.0
4.7
0
250
-
-
4.0
4.7
-
0.5
1
- 1.5 0.0 - 1.5 V
- 5.0 2.7 - 5.0 V
- - 0.25 - - V
- 0.4 0
- 0.4 V
- 250 20
- 250 Ns
+0.1Cb
- - 0 - 50 Ns
- 10 -10 - 10 µA
- 10 -
- 10 PF
- 100 -
- 400 KHz
- - 0.6 - - µs
- - 1.3 - - µs
- - 0.6 - - µs
- - 0.6 - - µs
- 3.45 0
- 0.9 µs
- - 100 - - Ns
- 1000 -
- 300 Ns
- 300 -
- 300 Ns
- - 0.6 - - µs
- - 1.3 - - µs
- 400 -
- 400 PF
- - 0.5 - - V
- -1- -V
Cb ; total capacitance of one bus line in pF.
SDA
tf
tr
SCL
tHD:STA
S
tLOW
tSU:DAT
tf
tHD:STA
tHD:DAT
tHIGH
tSU:STA
Sr
tSP tr
tBUF
tSU:STO
P
S
–5–
5 Page 
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NJW1177
sAPPLICATION CIRCUIT 1
100nF
22nF
4.7nF
100nF
3.3nF
33nF
1µF
10303nF
4.7µF
20kΩ
1µF
47kΩ 47kΩ
33nF 33nF
4.7µF
0.33µ
1µF
1µF
1µF
1 INa
INb 44
2
SURROUND
FIL
SRS FIL 43
3 TONE-Ha
TONE-Hb 42
4 TONE-La
TONE-Lb 41
5 BBEHa
BBEHb 40
6 BBELa
BBELb 39
7 SENDa
SENDb 38
8 RETURNa RETURNb 37
ealaBASS ealaBASS
9 LPF1
LPF3
ealaBASS ealaBASS
10 SENSE LPF2
36
35
ealaBASS
11 INT
CBB 34
12 OUTa
OUTb 33
13 AMP+INa
AMP+INb 32
14 AMP-INa
AMP-INb 31
15 AMPOUTa AMPOUTb 30
16 AGCINT
CBH 29
17 CVa
CTH 28
18 CVb
CTL 27
19 CSR
20 SDA
21 SCL
22 GND
VREF 26
AUX0 25
AUX1 24
V+ 23
100nF
4.7kΩ
4.7nF
100nF
3.3nF
33nF
330nF
8.2nF
1µF
0.33µF
1µF
4.7µF
47kΩ 47kΩ
33nF 33nF
4.7µF
1µF
1µF
1µF
1µF
1µF
(✳) Separate the I2C bus line and Signal line from the following terminals for avoiding digital noise problem and cross talk.
Pin No.
Symbol
Pin No.
Symbol
Pin No.
Symbol
Pin No.
Symbol
2 SURROUND FIL 6
BBELa
35 ealaBASS LPF2 41
TONE-Lb
3
TONE-Ha
9
ealaBASS LPF1
36 ealaBASS LPF3 42
TONE-Hb
4
TONE-La
10 ealaBASS SENSE 39
BBELb
-
-
5
BBEHa
11 ealaBASS INT 40
BBEHb
-
-
– 11 –
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet NJW1177.PDF ] | |
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