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PDF NJW1149 Data sheet ( Hoja de datos )
| Número de pieza | NJW1149 | |
| Descripción | Audio Processor | |
| Fabricantes | New Japan Radio | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NJW1149 (archivo pdf) en la parte inferior de esta página. Total 26 Páginas | ||
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PRELIMINARY
NJW1149
Audio Processor with Sound Enhancement and TruSurround 5.1ch Virtualizer
s GENERAL DESCRIPTION
The NJW1149 is an audio processor with BBE sound enhancement
and SRS Labs' TruSurround 5.1 channel virtualizer. It includes all of
functions processing audio signal for TV, such as volume, balance, mute,
tone control, eala NJRC original surround and simulated stereo
functions. All of internal status and variables are controlled by I2C BUS.
s PACKAGE OUTLINE
s FEATURES
NJW1149FC2
q Operating Voltage
8 to 10 V
q I2C BUS Interface
q TruSurround 5.1ch. / 4ch. / 2ch. Inputs
q BBE
0dB to +15dB(0.5dB/step)
q eala (surround effect ; 2 steps) and Simulated Stereo
qVolume
0 to -80dB, MUTE (0.33dB/step)
qBalance
0 to -30dB, MUTE (1dB/step)
qTone Control
-15dB to +15dB(0.5dB/step)
q Bi-CMOS Technology
q Package Outline
QFP64-C2
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DataShee
s BLOCK DIAGRAM
L IN
R IN
FL IN
FR IN
ATT
ATT
RL IN
RRIN
C IN
SW IN
+
-
Vol1
Vol1
BBE Tone Vol2 Buffer
BBE Tone Vol2 Buffer
CBH
CBL
CVA
CVB
CTH
CTL
CSR
Bias
V+
GND
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1 page  
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PRELIMINARY
NJW1149
et4U.com
s I2C BUS CHARACTERISTICS (SDA, SCL)
I2C BUS Load Conditions: Pull up resistance 4kΩ (Connected to +5V), Load capacitance 200pF (Connected to GND)
PARAMETER
SYMBOL MIN. TYP. MAX. UNIT
High Level Input Voltage
VIH 3.0 - 5.0 V
Low Level Input Voltage
VIL 0 - 1.5 V
High Level Input Current
IIH - - 10 µA
Low Level Input Current
IIL - - 10 µA
Low Level Output Voltage (3mA at SDA pin)
VOL 0 - 0.4 V
Maximum Output Current
IOL -3.0 - - mA
Maximum Clock Frequency
fSCL 0 - 100 kHz
Data Change Minimum Waiting Time
tBUF 4.7 - - µs
Data Transfer Start Minimum Waiting Time
tHD:STA
4.0
-
-
µs
Low Level Clock Pulse Width
tLOW
4.7 -
-
µs
High Level Clock Pulse Width
THIGH 4.0 - - µs
Minimum Start Preparation Waiting Time
tSU:STA
4.7
-
-
µs
Minimum Data Hold Time
tHD:DAT
5.0
-
-
µs
Minimum Data Preparation Time
tSU:DAT
250
-
-
ns
Rise Time
tR - - 1.0 µs
Fall Time
tF - - 300 ns
Minimum Stop Preparation Waiting Time
tSU:STO
4.7
-
-
µs
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DataShee
SDA
tBU
SCL
tR
tHD:ST tLOW
PS
tF
tHD:DA
tHIGH
tSU:DA
tHD:ST
tSU:ST
Sr
tSU:ST
P
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PRELIMINARY
NJW1149
PIN
NO.
SYMBOL
FUNCTION
14 TONE-Ha Ach TONE Treble
Filter Capacitor
38 TONE-Hb Bch TONE Treble
Filter Capacitor
EQUIVALENT CIRCUIT
1k
FB
15 TONE-La Ach TONE Bass
Filter Capacitor
37 TONE-Lb Bch TONE Bass
Filter Capacitor
1k
12k
FB
12k
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19
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AGC
AGC Smoothing Filter
Capacitor
12k
400
400
20 CVA Ach Volume switching
noise rejection Capacitor
21
CVB
Bch Volume switching
noise rejection Capacitor
8k
TERMINAL
VOLTAGE
V+/2
V+/2
DataShee
-
VREF-0.7V
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– 11 –
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet NJW1149.PDF ] | |
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