NJW1128FR3 [NJRC]
Voice Switched Speakerphone Circuit with Speaker Amplifier; 语音切换扬声器电路与扬声器放大器
| 型号： | NJW1128FR3 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Voice Switched Speakerphone Circuit with Speaker Amplifier |
| 文件： | 总13页 (文件大小：252K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJW1128
Voice Switched Speakerphone Circuit
with Speaker Amplifier
! GENERAL DESCRIPTION
! PACKAGE OUTLINE
The NJW1128 is a Voice Switched Speakerphone Circuit. It includes all of functions
processing a high quality hands–free speakerphone system, such as the necessary
amplifiers ( Mic , Receive ,Line, Speaker ), attenuators, level detectors functions.
The NJW1128 is controllable independently power-down of the speaker amplifier and
the entire IC excluding the speaker amplifier.
All external capacitors are sufficient small so that ceramic capacitors are applied.
NJW1128FR3
! APPLICATION
•Video Door Phone
•Conference System
•Wireless Application
•Security System
! FEATURES
● Operating voltage range
● Attenuator gain range between Transmit and Receive
● Speaker amplifier
3.9 to 5.5V
52dB
● Microphone amplifier with mute function
● Force to Receive, Transmit, or Idle modes
● Mode –watching monitor
● Background noise monitor for each path
● 4-point signal sensing
● Chip disable Pin powers down the entire IC excluding
the speaker amplifier
● Speaker switch Pin power down the speaker amplifier
● Microphone and Receive Amplifiers pinned out for flexibility
● Package Outline
LQFP48-R3
! BLOCK DIAGRAM
C10 C11
100n 100n 5.1k
C8 R4
100n 3k
R5
300k
C9
10 0n
R8
R9
51k
Microphone
Line Out
R6
5.1k
R7
5.1k
CfL
MICOUT
M ICIN
TLI2
TLI1 TXO
LII
LiO-
LiO+
SPV+
C22
1
µ
MUT
V+
GND :ACTIVE
R2
3 00k
SPV+
V+
V+
:MUTE
C12
1
µ
Tx Atten uato r
-1
M ic
VREF
V+
VREF
Am plif ier
L ine Amplifier
C2
1
Monitor
CT
µ
M UT
C5
100n
C6
C7
1
µ
V+
:Recive
Level
Detector
TLO2
RL O2
GND :Trensmit
Open :idle
V+
100n
RTSW
CPR
C4
1u
Background
Attenuator
Control
Backgrou nd
No iseM onitor
C21
1
µ
NoiseMon itor
CPT
C20
100 n
C20
L evel
1
µ
TLO1
RLO1
BIAS
Detector
VREF
CD
C19
100 n
C1
1
µ
CD
Speaker Ampl ifier
V+ :ACTIVE
GND :Power Down
R3
300 k
Receiv e
Ampli fier
SPGND
GND
C3
V+
1
µ
SPS
Rx Attenuator
-1
VREF
FI
VREF
1.2
A
µ
SPSW
V+ :ACTIVE
GND :Power Down
V+
R3
300 k
RLI1
FO
SPO+
SPO-
CfS
SPI
RL I2
VLC
RX O
R13
5.1k
C16
C15
R15
5. 1k
R14
5.1 k
R12
5.1k
10 0n
100n
RVLC
Recive In
R10
51 k
R11 C13 C14
5.1k 10 0n 100n
CfR
Speaker
Ver.1.4
NJW1128
! ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
7
UNIT
V
Power Supply Voltage
V+
Power Dissipation
PD
1,330(Note1)
-40 ~ +85
-40 ~ +125
0 ~ V+ (Note2)
mW
°C
Operating Temperature Range
Storage Temperature Range
Maximum Input Voltage
Topr
Tstg
°C
VIMAX
V
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
! OPERATING VOLTAGE
PARAMETER
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
V+
-
3.9
5.0
5.5
V
Operating Voltage
! ELECTRICAL CHARACTERISTICS (Ta=25°C,V+=5V,Vin=150mVrms/1kHz,MUT=CD=SPSW= V+,MON=OPEN, RVLC=0Ω)
●Power Supply
PARAMETER
Operating Current 1
Operating Current 2
Operating Current 3
Operating Current 4
Operating Current 5
Reference Voltage
SYMBOL
ICC1
TEST CONDITION
RX-mode (Receive)
MIN.
2.0
2.0
2.0
1.0
0.5
2.2
TYP.
3.5
3.5
3.5
2.5
1
MAX.
6.0
UNIT
mA
mA
mA
mA
mA
V
ICC2
TX-mode (Transmit)
6.0
ICC3
Idle-mode (Standby)
6.0
ICC4
Idle-mode ,SPSW=PD
Idle-mode ,CD=PD,SPSW=PD
No signal,Idle-mode
4.0
ICC5
1.5
VREF
2.5
2.8
●Receive Attenuator(RxIN=200Vrms,Receive Amplifier Gv=0dB)
PARAMETER
Receive Attenuator Gain 1
Receive Attenuator Gain 2
Receive Attenuator Gain 3
Range R to T mode
SYMBOL
TEST CONDITION
MIN.
3.0
-42
-17
47
TYP.
6.0
-46
-20
52
MAX.
9.0
-50
-23
57
UNIT
dB
GR1
RX-mode (Receive)
GR2
TX-mode (Transmit)
dB
GR3
Idle-mode (Standby)
dB
dGR
RX-mode – TX-mode
RX-mode – TX-mode (DC)
RX-mode,RVLC=0Ω-100kΩ
dB
Dynamic DC offset
Volume control range
GRDC
GRVR
-50
35
-
50
mV
dB
45
55
●Transmit Attenuator (TxIN=200Vrms,Mic.amplifier Gv=0dB)
PARAMETER
Transmit Attenuator Gain 1
Transmit Attenuator Gain 2
Transmit Attenuator Gain 3
Range R to T mode
SYMBOL
TEST CONDITION
MIN.
3.0
TYP.
6.0
-46
-20
52
MAX.
9.0
UNIT
dB
GT1
TX-mode (Transmit)
GT2
RX-mode (Receive)
-42
-17
47
-50
-23
57
dB
GT3
Idle-mode (Standby)
TX-mode – RX-mode
TX-mode – RX-mode (DC)
dB
dGT
dB
Dynamic DC offset
GTDC
-50
-
50
mV
– 2 –
NJW1128
●MIC Amplifier(TxIN=1mVrms,Gv=40dB,RL=5.1kΩ)
PARAMETER
Output Offset Voltage
Input Bias Current
SYMBOL
TEST CONDITION
MIN.
TYP.
0.0
30
MAX.
UNIT
mV
nA
VMOS
RF=300k
Ω
-50
-
50
-
IMBIAS
Voltage Gain 1
GVM1
f=1kHz
-
40
-
dB
Voltage Gain 2
GVM2
f=20kHz
THD=1%
-
36
-
dB
Maximum Output Voltage
Maximum Attenuation
VMMAX
GMMUTE
1.0
-70
-
-
Vrms
dB
MUT=MUTE
-73
-
●Receive Amplifier (RxIN=1mVrms,Gv=40dB,RL=5.1kΩ)
PARAMETER
Output Offset Voltage
Input Bias Current
Voltage Gain 1
SYMBOL
TEST CONDITION
MIN.
TYP.
0.0
30
MAX.
UNIT
mV
VROS
RF=300k
Ω
-50
50
-
IRBIAS
-
-
nA
GVR1
f=1kHz
40
-
dB
Voltage Gain 2
GVR2
f=20kHz
THD=1%
-
36
-
dB
Maximum Output Voltage
VRMAX
1.0
-
-
Vrms
●Line Amplifier (LINEIN=50mVrms, GV=26dB,RL=1.2kΩ)
PARAMETER
Output Offset Voltage
Input Bias Current
Voltage Gain 1
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
VLOS
RF=51k
Ω
-50
0.0
30
26
25
1.5
0
50
mV
nA
IRBIAS
GvL1
-
-
f=1kHz
f=20kHz
-
-
-
nA
Voltage Gain 2
GvL2
-
-
nA
Gain Bandwidth
GLBW
GLC
RL=600
RL=1.2k
RL=1.2k
Ω
,LIO
-
MHz
dB
Closed Loop Gain
Maximum Output Voltage
Ω
,LIO- to LIO+
-0.5
2.0
0.5
-
VLMAX
Ω
,THD=1%
-
Vrms
VIN=100mVrms,GV=20dB
RL=1.2
Total Harmonic Distortion
THDLN
-
-
0.5
%
Ω
●Speaker Amplifier (SPIN=50mVrms, GV=26dB,RL=32Ω)
PARAMETER
Output Offset Voltage
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
SYMBOL
TEST CONDITION
RF=51k
f=1kHz
MIN.
TYP.
MAX.
UNIT
VSPOS
GVSP1
GVSP2
GVSP3
GVSO4
GLC
Ω
-50
-
-
-
-
0.0
26
24
6
4
0
50
-
-
-
-
mV
dB
dB
dB
dB
dB
mW
mW
f=20kHz
f=1kHz, GVSP=6dB,RL=8Ω
f=20kHz, GVSP=6dB,RL=8Ω
SPO- to SPO+
Voltage Gain 4
Closed Loop Gain
-0.6
200
300
0.6
-
-
PoMAX1
PoMAX2
RL=32
Ω
,THD=3%
300
500
Maximum Output Power
Total Harmonic Distortion
RL=8Ω
,THD=3%
VIN=500mVrms,f=1KHz,
RL=32Ω,GVD=26dB
VIN=500mVrms,f=1KHz,
RL=8Ω,GVD=6dB
THDSP1
-
1.0
%
THDSP2
-
-
1.0
%
– 3 –
NJW1128
●MONITOR TERMINAL (32Pin)
PARAMETER
SYMBOL
TEST CONDITION
MIN.
V+-0.6
GND
TYP.
MAX.
V+
UNIT
RX-mode
TX-mode
Rx
Tx
-
-
-
-
V
V
0.6
Idle-mode
Idle
No Signal
2.4
-
2.5
0.9
2.6
-
V
Maximum Output Current
IMON
Rx-mode / Tx-mode
mA
! CONTROL CHARACTERISTICS (MUT)
PARAMETER
Low Level Input Voltage
High Level Input Voltage
SYMBOL
TEST CONDITION
MIN.
-
1.5
TYP.
MAX.
0.3
-
UNIT
V
V
-
-
VIL1
VIH1
-
-
! CONTROL CHARACTERISTICS (RTSW)
PARAMETER
Low Level Input Voltage
High Level Input Voltage
SYMBOL
TEST CONDITION
MIN.
-
TYP.
MAX.
0.3
-
UNIT
V
V
VIL2
VIH2
-
-
-
-
V+-0.3
! FUNCTION
●CD
INPUT VOLTAGE
STATUS
ACTIVE
MUTE
OPERATION
VIH
VIL
NJW1128 is active.
NJW1128 is stand-by except Speaker Amplifier.
●MUT
INPUT VOLTAGE
STATUS
MUTE
OPERATION
The microphone input is mute.
VIH
VIL
ACTIVE
The microphone input is active.
●SPSW
INPUT VOLTAGE
STATUS
ACTIVE
PD
OPERATION
The Speaker Amplifier is Active.
The Speaker Amplifier is Stand-by.
VIH
VIL
●RTSW
INPUT VOLTAGE
STATUS
Receive
AUTO
OPERATION
VIH
Force to Receive mode.
Receive mode and Transmit mode are automatically switched.
Force to Transmit mode.
OPEN
VIL
Transmit
●RVLC (26pin)
IMPEDANCE
STATUS
VolMAM
VolMIN
OPERATION
The Receive attenuator Volume is maximum.
The Receive attenuator Volume is minimum.
0
100k
Ω
– 4 –
NJW1128
! APPLICATION CIRCUIT
Rx-Mode :H
Tx-Mode :L
C2
1u
Idle
:HI-Z
R24 LED1
TR1 2.2k
R1
300k
SW1
SW2
SW3
H:Active
V+
L: PowerDown
V+
MON
C3
1u
C30
1u
R23
51k
R2
300k
H:MUTE
L:ACTIVE
V+
H:Recive
L:Trensmit
O:Auto
C4
1u
H:ACTIVE
L:PowerDown
R3
300k
V+
Open
V+
V+
C28
1u
C29
1u
C27
220n
C1
1u
SW4
C6
220n
C5
1u
48
TLO2
47
CPT
46
45
44
43
GND
42
V+
41
MON
40
RTSW VREF CPR RLO1
TLO1
39
38
37
C7
220n
C26
220n
CD
SPSW MUT
1
RLO2
36
35
34
33
32
31
30
29
28
27
26
25
NC
2
NC
CT
VR1
100k
C8
1u
VLC
NC
3
4
3
1
*R21 : Jumper
NC
2
R7
0
R6
5.1k
C10
100n
R22
C25
5.1k 100n
R21
0
Receive
In
MCI
MIC IN
FI
5
R8
51k
C12
100p
C23
100p
R20
51k
MCO
TLI2
FO
FO
MIC OUT
6
R9
5.1k
C22
100n
R19
5.1k
C13
100n
*R7 : Jumper
NJW1128
RLI1
RLI2
RXO
SPI
NC
7
R10
510
R18
510
8
TLI1
TXO
C14
1u
C21
1u
*R11 : Jumper
*R17 : Jumper
RX
OUT
TX OUT
LINE IN
9
R11
0
*R17
0
C20
R16
5.1k
C15 R12
100n 5.1k
100n
SP IN
10
11
12
LII
R13
5.1k
C16
1n
C19
1n
R15
5.1k
Line Out
LIO-
－
Line Out
＋
NC
LIO+
NC
*R14 : Dummy Load
SPO-
21
V+
14
V+
15
SPO+ SPO+
GND
19
SPO-
20
V+
22
V+
23
NC
24
GND
18
13
16
17
+
+
C18
10u
C17
10u
V+
SP Out+
SP Out
－
– 5 –
NJW1128
! TYPICAL CHARACTERISTICS
Supply Current vs Supply Voltage
No Signal , Supply Current 1
Supply Current vs Supply Voltage
No Signal , Supply Current 4
6
5
4
3
2
1
0
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
+85degC
+25degC
+85degC
+25degC
-40degC
-40degC
0
1
2
3
4
5
6
7
8
0
1
2
3
4
5
6
7
8
Supply Voltage [V]
Supply Voltage [V]
Supply Current vs Supply Voltage
No Signal , Supply Current 5
Supply Current vs Temperature
V+ =5.0V , No Signal
5
4.5
4
2.0
Supply Current 1
Supply Current 4
Supply Current 5
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
3.5
3
+85degC
+25degC
2.5
2
-40degC
1.5
1
0.5
0
-50
-30
-10
10
30
50
70
90
110
130
150
0
1
2
3
4
5
6
7
8
Temperature [degC]
Supply Voltage [V]
RxAtt Gain vs Temperature
V+ =5.0V , RecieveAmp : 0dB , RL=5.1k
RxAtt Gain vs Temperature
V+ =5.0V , Rx-Mode , RecieveAmp : 0dB , RL=5.1k
Ω
Ω
10
5
50
48
46
44
42
40
38
36
34
32
30
Idle-Mode
0
RX-Mode
Tx-Mode
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
-50
-30
-10
10
30
50
70
90
110
130
150
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature [degC]
Temperature [degC]
– 6 –
NJW1128
! TYPICAL CHARACTERISTICS
TxAtt Gain vs Temperature
V+ = 5.0V , MicAmp : 0dB , RL=5.1k
RecieveAmp MaximumOutput Voltage vs Temperature
V+ = 5.0V , f = 1kHz Rf = 300k , Gv=40dB , RL=5.1k , THD+N = 1% , BW=400Hz-30kHz
Ω
Ω
Ω
10
5
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
0
Idle-Mode
TX-Mode
-5
RX-Mode
-10
-15
-20
-25
-30
-35
-40
-45
-50
-50
-30
-10
10
30
50
70
90
110
130
150
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature [degC]
Temperature [degC]
MicAmp MaximumOutput Voltage vs Temperature
V+ =5.0V , f = 1kHz , Rf = 300k , Gv=40dB , RL=5.1k , THD+N = 1% , BW=400Hz-30kHz
MicAmp Mute Range vs Temperature
V+ =5.0V , Rf = 300k , Gv=40dB , RL=5.1k , A-Weighting
Ω
Ω
Ω
Ω
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1
80
79
78
77
76
75
74
73
72
71
70
-50
-30
-10
10
30
50
70
90
110
130
150
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature [degC]
LineAmp THD vs Temperature
Ω
V+ =5.0V , f = 1kHz , Rf = 51k , Gv=26dB , Vin = 50mVrms , RL=1.2k , BW=400Hz-30kHz
Ω
LineAmp Maximum Output Voltage vs Temperature
V+ =5.0V , f = 1kHz , Rf = 51k , Gv=26dB , RL=1.2k , THD+N = 1% , BW=400Hz-30kHz
Ω
Ω
0.3
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
0.25
0.2
0.15
0.1
0.05
0
-50
-30
-10
10
30
50
70
90
110
130
150
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature [degC]
Temperature [degC]
– 7 –
NJW1128
! TYPICAL CHARACTERISTICS
Speaker Amp THD vs Temperature
V+ =5.0V , f = 1kHz , BW=400Hz-30kHz
Speaker Amp Maximum Output Pow er vs Temperature
V+ =5.0V , f = 1kHz , THD+N = 3% , BW=400Hz-30kHz
0.7
0.6
800
700
600
500
400
300
200
100
0
8
/ 6dB
Ω
32 / 26dB
Ω
0.5
0.4
0.3
0.2
0.1
0
32 / 26dB
Ω
8
/ 6dB
Ω
-50
-30
-10
10
30
50
70
90
110
130
150
-50
-30
-10
10
30
50
70
90
110
130
150
Temperature [degC]
Temperature [degC]
Receive Amp THD+N vs Input Voltage
V+ = 5.0V , f = 1kHz Rf = 300k , Ri=3k , Ci = 1 F , Gv=40dB , RL=5.1k ,
Ω
Receive Amp THD+N vs Input Voltage
Ω
Ω
µ
V+ = 5.0V , f = 1kHz Rf = 3k , Ri=3k , Ci = 1 F , Gv=0dB , RL=5.1k , BW=400Hz-30kHz
Ω
Ω
µ
Ω
BW=400Hz-30kHz
10
1
10
-40degC
+25degC
+85degC
-40degC
+25degC
+85degC
0.1
0.01
1
0.001
0.1
0.0001
0.01
0.1
1
10
0.001
0.01
0.1
Input Voltage [%]
Input Voltage [Vrms]
Mic Amp THD+N vs Input Voltage
V+ = 5.0V , f = 1kHz Rf = 300k , Ri=3k , Ci = 1 F , Gv=40dB , RL=5.1k ,
Ω
Mic Amp THD+N vs Input Voltage
f = 1kHz Rf = 3kohm, Ri=3kohm , Ci = 1uF , Gv=0dB , RL=5.1kohm ,BW=400Hz-30kHz
Ta = -40degC
Ω
Ω
µ
BW=400Hz-30kHz
10
1
10
-40degC
+25degC
+85degC
-40degC
+25degC
+85degC
0.1
1
0.01
0.001
0.1
0.0001
0.01
0.1
1
10
0.001
0.01
0.1
THD+N [Vrms]
Input Voltage [Vrms]
– 8 –
NJW1128
! TYPICAL CHARACTERISTICS
Line Amp THD+N vs Input Voltage
f = 1kHz Rf = 51kohm , Ri=5.1kohm , Ci = 1uF , Gv=26dB , RL=1.2kohm ,BW=400Hz-30kHz
Ta = -40degC
10
-40degC
+25degC
+85degC
1
0.1
0.001
0.01
0.1
1
Input Voltage [Vrms]
Speaker Amp THD+N vs Output Pow er
V+ = 5.0V , f = 1kHz Rf = 51k , Ri=5.1k , Ci = 1 F , Gv=26dB , RL=32 ,BW=400Hz-30kHz
Speaker Amp THD+N vs Output Pow er
V+ = 5.0V , f = 1kHz Rf = 5.1k , Ri=5.1k , Ci = 1 F , Gv=26dB , RL=8 ,BW=400Hz-30kHz
Ω
Ω
µ
Ω
Ω
Ω
µ
Ω
10
10
-40 degC
+25 degC
+85 degC
-40degC
+25degC
+85degC
1
1
0.1
0.001
0.1
0.001
0.01
0.1
1
0.01
0.1
1
Output Pow er [Wrms]
Output Pow er [Wrms]
Receive Amp Maximum Output Voltage vs Load Impedance
V+ = 5.0V ,Rf = 300k , Ta=25degC
Mic Amp Maximum Output Voltage vs Load Impedance
V+ = 5.0V ,Rf = 300k , Ta=25degC
Ω
Ω
6
5
4
3
2
1
0
6
5
4
3
2
1
0
100
1000
10000
100000
100
1000
10000
100000
Load Impedance [
]
Load Impedance [ ]
Ω
Ω
– 9 –
NJW1128
! TYPICAL CHARACTERISTICS
Rx Att Maximum Output Voltage vs Load Impedance
V+=5.0V , Ta=25degC
Tx Att Maximum Output Voltage vs Load Impedance
V+=5.0V , Ta=25degC
6
5
4
3
2
1
0
6
5
4
3
2
1
0
100
1000
10000
100000
100
1000
10000
100000
Load Impedance [
]
Load Impedance [ ]
Ω
Ω
Line Amp Maximum Output Voltage vs Load Impedance
V+ = 5.0V ,Rf = 51k , Ta=25degC
Monitor out Maximum Output Voltage vs Load Impedance
V+=5.0V , Ta=25degC
Ω
6
5
4
3
2
1
0
6
5
4
3
2
1
0
100
1000
10000
100000
100
1000
10000
100000
Load Impedance [
]
Load Impedance [ ]
Ω
Ω
– 10 –
NJW1128
! TYPICAL CHARACTERISTICS
Pd vs Output Power
V+=5.0V , f=1kHz , Gv=6dB , BW=400Hz-30kHz , Ta=25degC
700
600
500
400
300
200
100
0
THD=1%
THD=3%
8Ω
16Ω
32Ω
0
100
200
300
400
500
600
700
Output Power [mW]
RecieveAmp Voltage Gain vs Frequency
RecieveAmp Voltage Gain vs Frequency
Vin = 1mVrms , Rf = 300k , Ri = 3k , Ci = 1 F , Gv=40dB , RL=5.1k
Ω
Vin = 100mVrms , Rf = 3k , Ri = 3k , Ci = 1 F , Gv=0dB , RL=5.1k
Ω
Ω
µ
Ω
Ω
Ω
µ
2
0
45
40
35
30
25
20
15
10
-2
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
-4
-6
-8
-10
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
Mic Amp Voltage Gain vs Frequency
Vin = 100mVrms , Rf = 3k , Ri = 3k , Ci = 1 F , Gv=0dB , RL=5.1k
Mic Amp Voltage Gain vs Frequency
Vin = 1mVrms , Rf = 300k , Ri = 3k , Ci = 1 F , Gv=40dB , RL=5.1k
Ω
Ω
Ω
µ
Ω
Ω
Ω
µ
2
0
45
40
35
30
25
20
15
10
-2
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
-4
-6
-8
-10
10
100
1000
10000
100000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
– 11 –
NJW1128
! TYPICAL CHARACTERISTICS
Line Amp Voltage Gain vs Frequency
Vin = 50mVrms , Rf = 51k , Ri = 5.1k , Ci = 1 F , Gv=26dB , RL=1.2k
Ω
Ω
Ω
µ
28
26
24
22
20
18
16
14
12
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
10
10
0
100
1000
10000
100000
100000
2.5
Frequency [Hz]
Speaker Amp Voltage Gain vs Frequency
Speaker Amp Voltage Gain vs Frequency
Vin = 500mVrms , Rf = 5.1k , Ri = 5.1k , Ci = 1 F , Gv=6dB , RL=8
Ω
Vin = 50mVrms , Rf = 51k , Ri = 5.1k , Ci = 1 F , Gv=26dB , RL=32
Ω
Ω
µ
Ω
Ω
Ω
µ
28
26
24
22
20
18
16
14
12
10
8
6
4
V+ =3.7V , 5,0V , 5.5V
Ta = -40 , +25 , +85 degC
2
V+ =3.9V to 5.5V
Ta = -40degC to +85degC
0
-2
-4
-6
-8
-10
100
1000
10000
10
100
1000
10000
100000
Frequency [Hz]
Frequency [Hz]
Supply Current vs CD Pin Voltage
Supply Current vs SPSW Pin Voltage
V+ = 5.0V , CD = Active , RTSW = Open , no Signal
V+ = 5.0V , SPSW = PD , RTSW = Open , no Signal
3.5
3
5
4.5
+85 degC
+85 degC
+25 degC
4
+25 degC
2.5
2
3.5
3
-40 degC
-40 degC
2.5
2
1.5
1
1.5
1
0.5
0
0.5
0
0.5
1
1.5
CD Pin Voltage [V]
2
0
0.5
1
1.5
2
2.5
SPSW Pin Voltage [Hz]
– 12 –
NJW1128
! TYPICAL CHARACTERISTICS
Mic Amp Mute attenuate Range vs MUT Pin Voltage
TX , RX attenuator Gain vs RTSW Pin Voltage
V+ = 5.0V , Vin = 1mVrms , Rf = 300kohm , Ri = 3kohm , Ci = 1uF , Gv=40dB , RL=5.1kohm
V+ = 5.0V , f = 1kHz , Vin = 200mVrms
A-Weighting
20
10
10
TX-Mode
Auto(Idle)-Mode
RX-Mode
0
+25 degC
-10
-40degC
+25degC
+85 degC
-40 degC
0
-20
-30
-40
-50
-60
-70
-80
+85degC
-10
-20
-30
-40
-50
TX Att.
RX Att.
RX Att.
TX Att.
-40degC
+25degC
+85degC
0
0.5
1
1.5
MUT Pin Voltage [V]
2
2.5
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
RTSW Voltage [V]
[CAUTION]
The specifications on this databook are only
given for information , without any guarantee
as regards either mistakes or omissions. The
application circuits in this databook are
described only to show representative usages
of the product and not intended for the
guarantee or permission of any right including
the industrial rights.
– 13 –
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