Interface EVR. NJU7394 Datasheet

NJU7394 EVR. Datasheet pdf. Equivalent

NJU7394 Datasheet
Recommendation NJU7394 Datasheet
Part NJU7394
Description Pushbutton Interface EVR
Feature NJU7394; NJU7394 Pushbutton Interface EVR „ GENERAL DESCRIPTION The NJU7394 is a pushbutton interface elect.
Manufacture New Japan Radio
Datasheet
Download NJU7394 Datasheet




New Japan Radio NJU7394
NJU7394
Pushbutton Interface EVR
„ GENERAL DESCRIPTION
The NJU7394 is a pushbutton interface electronic volume.
It includes a electronic volume controller with differential input,
attenuator function, some indicator and a stand-by function
(Power-saving mode).
The NJU7394 has also built-in push button interface for its
volume UP/DOWN controls and power ON/OFF controls -
making application possible without the use of micro-controller.
The NJU7394 is suitable for low power application and also for
application without micro-controller such as mobile audio player
and cradle speaker for mobile game.
„ PACKAGE OUTLINE
NJU7394VC3
„ FEATURES
• Operating Voltage
• Low operating current
• Pop-noise reduction
• Quasi-differential input
• Pushbutton interface EVR
• Adjustable initial Volume
• Attenuator / Soft MUTE Function
• CMOS Technology
• Package Outline
+2.7 to +5.5V
2mA typ. (Active mode)
1µA typ. (stand-by mode)
+6 to -62dB, MUTE
-6dB, -10dB, -14dB, -18dB
-10dB, -15dB, -20dB, MUTE
SSOP20-C3
„ BLOCK DIAGRAM
Power Button
V+
V+ Power
indicator
V+ Volume
indicator
V+
Power
Bias
V+
Standby
Input L
Input G
Input R
SWMODE PWSW PWIND
Power Contrel
Logic
STBY
VOLIND IREF V+
VREF GND
Bias
Electric Volume
(+6dB to -62dB, Mute)
Attenuator
Bypass/Att.
(-10dB, -15dB,
-20dB, Mute)
Volume Control Logic
ATTADJ
VOLADJ
ATT UP DOWN TEST
V+
Attenuate level
adjuster
RATT
-10,-15,-20dB,Mute
Initial volume
RINIT
adjuster
-6,-10,-14,-18 dB
Attenuator
Test mode
Up Down
V+ V+
NJU7394 Ver.3.3 _E
Output L
Output R
-1-



New Japan Radio NJU7394
NJU7394
„ PIN CONFIGURATION
20
11
1
No. Symbol
1 INL
2 ING
3 INR
4 SWMODE
5 STBY
6 ATT
7 PWSW
8 UP
9 DOWN
10 T E S T
Function
Lch Input
Common Input
Rch Input
Control Mode Setting
Standby Setting
Attenuator Setting
Power Switch
Volume Up Switch
Volume Down Switch
Test Terminal
No Symbol
11 V O L I N D
12 P W I N D
13 V O L A D J
14 AT TA D J
15 V +
16 G N D
17 I R E F
18 O U T R
19 V R E F
20 O U T L
10
Function
Volume Indicator
Power Indicator
Initial Volume Adjustor
Attenuator Adjustor
Power Supply
Ground
Reference Current
Rch Output
Reference Voltage
Lch Output
-2-



New Japan Radio NJU7394
NJU7394
„ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
Power Supply Voltage
Power Dissipation
Maximum Input Voltage
Operating Temperature Range
V+
PD
VIMAX
Topr
+7
540*1)
0 to V+ *2)
-40 to +85
Storage Temperature Range
Tstg
-40 to +125
*1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
*2) Don’t apply the input voltage that exceeds supply voltage.
„ ELECTRICAL RECOMMENDED OPERATING CONDITION (Ta=25°C)
PARAMETER
SYMBOL
TEST CONDITION
Operating Voltage
V+
-
MIN.
2.7
TYP.
3.3
MAX.
5.5
UNIT
V
mW
V
oC
oC
UNIT
V
„ ELECTRICAL CHARACTERISTICS
DC CHARACTERISTICS (Ta=25°C, V+=3.3V, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX.
Operating Current
IDD1 No Signal, Active
IDD2 No Signal, Standby*3)
- 2.0
- 0.1
Reference Voltage
VREF
No signal
1.5 1.65
*3) In case of the voltage of each terminal SWMODE, STBY, ATT, PWSW, UP, DOWN and TEST is “L”=0V.
AC CHARACTERISTICS
(Ta=25°C, V+=3.3V, VIN=500mVrms, f=1kHz, ATT: OFF, VOL: 6dB, unless otherwise specified)
3.0
1.0
1.8
UNIT
mA
µA
V
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Maximum Input Voltage
Output Noise Voltage 1
Output Noise Voltage 2
Total Harmonic Distortion
Maximum Gain
Initial Volume 1
Initial Volume 2
Initial Volume 3
Initial Volume 4
Maximum Attenuate level
Mute Level
VIM
THD=1%
BW=400Hz-30kHz
VNO1
VNO2
THD+N
Rg=0, A-weighted
Rg=0, A-weighted
VOL=-62dB
VIN=250mVrms
BW=400Hz-30kHz
GVMAX
GVINIT1
GVINIT2
GVINIT3
GVINIT4
GV-62
Mute
Power-on state
RINIT=0
Power-on state
RINIT=47k
Power-on state
RINIT=100k
Power-on state
RINIT=OPEN
VOL=-62dB
BW=400Hz-30kHz
VOL=MUTE
BW=400Hz-30kHz
500 550
- mVrms
-
-100
(10)
-94 dBV
(20) (µVrms)
-
-100
(10)
-94 dBV
(20) (µVrms)
- 0.05 0.1
%
5.0 6.0 7.0
dB
-8.0 -6.0 -4.0
dB
-12.0 -10.0 -8.0
dB
-16.0 -14.0 -12.0
dB
-20.0 -18.0 -16.0
dB
-64 -62 -60
dB
-
-90 -84
dB
-3-







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