Line Amplifier. NJW1241 Datasheet

NJW1241 Amplifier. Datasheet pdf. Equivalent

NJW1241 Datasheet
Recommendation NJW1241 Datasheet
Part NJW1241
Description 3-Chanels Differential Output Line Amplifier
Feature NJW1241; NJW1241 3-Chanels Differential Output Line Amplifier „ GENERAL DESCRIPTION The NJW1241 is a differ.
Manufacture New Japan Radio
Datasheet
Download NJW1241 Datasheet




New Japan Radio NJW1241
NJW1241
3-Chanels Differential Output Line Amplifier
„ GENERAL DESCRIPTION
The NJW1241 is a differential output 3-channel audio line
amplifier for High Voltage Pre-out of Car AV system. It can
swing 5Vrms(14.1V peak-to peak) singal at 8V opearating
voltage /single-end output because of including the charge
pump circuit.
Ground-referenced outputs eliminate output coupling
capacitor. The pop noise suppression circuit reduces a pop
noise at the power-on and power-off.
PACKAGE OUTLINE
„ FEATURES
l Operating Voltage
6.0V to +10V
l Operating Current
IDD=12mA typ.
at V+=8V, RL=47k, No Signal
l Maximum Output Voltage
l Low Distortion
l Output Coupling Capacitor-less
l External Synchronizing
l Pop Noise Suppression Circuit
l External Mute
l Gain Select
5.0Vrms min. @single-end output
0.004% typ
Divide-by-2
+6dB/+8dB
l RF Immunity OpAmp tolerant to FR noise. (ex. mobile phone)
l Bi-CMOS Technology
l Package Outline
SSOP32
NJW1241V
„ BLOCK DIAGRAM
V+
IN1
OUT1A
V- Mute Tr
Mute Tr
OUT1B
V+
IN2
OUT2A
V- Mute Tr
Mute Tr
OUT2B
V+
IN3
OUT3A
V- Mute Tr
Gain
Select
Charge
Pump
Mute Tr
Pop Noise
Suppression
V-
V+ Detector
OUT3B
Ver. 0.4E
–1–



New Japan Radio NJW1241
NJW1241
„ PIN CONFIGURATION
No. Symbol
Function
No. Symbol
Function
1 IN1
Input 1
17 NC
No Connect
2 REF1
Reference 1
18 FB V- Power Supply External Setting
3 IN2
Input 2
19 CP Flying Capacitor Positive Terminal
4 REF2
Reference 2
20 NC
No Connect
5 IN3
Input 3
21 NC
No Connect
6 REF3
Reference 3
22 GND
Ground
7 MUTE MUTE / Pop Noise Suppression 23
CN Flying Capacitor Negative Terminal
8 GAIN
Gain Select
24 MUTE_TC Pop Noise Suppression Capacitor
9 V- IN
V- Power Input
25 V+ A
V+ Power Supply for Analog
10 V- OUT
V- Power Output
26 GND
Ground
11 RegCNT
V- Power Control
27 OUT3B
Output 3B
12 NC
No Connect
28 OUT3A
Output 3A
13 NC
No Connect
29 OUT2B
Output 2B
14 CLK
External Clock Input
30 OUT2A
Output 2A
15 V+ Reg V+ Power Supply for Regulator 31 OUT1B
Output 1B
16 NC
No Connect
32 OUT1A
Output 1A
–2–



New Japan Radio NJW1241
NJW1241
„ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
Supply Voltage
V+
RATING
10.5
CLK Terminal Voltage
V- Power Supply Control Voltage
FB Terminal Voltager
Maximum Input Voltage
Power Dissipation
Operating Temperature Range
VCLK
VRegCNT
VFB
VIN
PD
Topr
-0.3 +6
-0.3 +6
(V-OUT)+6
V+ +0.3
905(Note1)
-40 ~ +85
Storage Temperature Range
Tstg
-40 ~ +125
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
RECOMMENDED OPERATING CONDITIONS
(Ta=25°C unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
Operating Voltage
V+
68
External Clock Input Range
fCLK
150 -
External Clock Duty Input Range
DUTY
45 -
(Note2) The regulator for V- power supply operates by the half of fCLK.
„ ELECTRICAL CHARACTERISTICS
(Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47k, GAIN=Low, MUTE=High, RegCNT=High unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP.
Operating Current
Voltage Gain1
Voltage Gain2
Maximum Output Voltage
Mute Level
S/N Ratio
Total Harmonic Distortion
Channel Separation
IDD
GV1
GV2
VOMAX
VMUTE
VNO1
THD
CS
No signal
GAIN=High
THD=1%,
MUTE=Low
Vin=500mVrms , A=Weighted
Differential Output
BW:400Hz-22kHz,
Differential Output
Rg=600
- 12
5.5 6
7.5 8
5-
- -100
- 100
- 0.004
80 -
Internal Oscillating Frequency
fOSC
fCLK=No signal
- 300
MAX.
10
1250
80
MAX.
20
6.5
8.5
-
-80
-
-
-
-
UNIT
V
V
V
V
V
mW
°C
°C
UNIT
V
kHz
%
UNIT
mA
dB
dB
Vrms
dB
dB
%
dB
kHz
„ CONTROL CHARACTERISTICS
(Ta=25°C, V+=8V, f=1kHz, Vin=0dBV, RL=47kunless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITION
Mute Terminal High
Mute Terminal Low
Gain Terminal High
Gain Terminal Low
CLK Terminal High
CLK Terminal Low
MuteH
MuteL
GainH
GainL
CLKH
CLKL
MUTE OFF
MUTE ON
Gv=8dB
Gv=6dB
MIN.
2.3
0
2.3
0
2.3
0
TYP.
-
-
-
-
-
-
MAX.
V+
0.7
V+
0.7
5.5
0.7
UNIT
V
V
V
V
V
V
–3–







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)