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NJW1124のメーカーはNJR Corporationです、この部品の機能は「Voice Switched Speakerphone circuit」です。 |
部品番号 | NJW1124 |
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部品説明 | Voice Switched Speakerphone circuit | ||
メーカ | NJR Corporation | ||
ロゴ | |||
このページの下部にプレビューとNJW1124ダウンロード(pdfファイル)リンクがあります。 Total 29 pages
NJW1124
Voice Switched Speakerphone circuit
! GENERAL DESCRIPTION
The NJW1124 is a Voice Switched Speakerphone Circuit.
NJW1124 includes all of functions processing a high quality hands–free
speakerphone system, such as the necessary amplifiers ( Microphone ,
Receive ,Line), attenuators, level detectors functions.
All external capacitors are sufficient small so that ceramic capacitors are
applied.
! APPLICATION
•Video Door Phone
•Conference System
•Wireless Application
•Security System
! FEATURES
• Operating voltage range
• Force to Receive, Transmit, or Idle modes
• Mode –watching monitor
• Attenuator gain range between Transmit and Receive
• Microphone amplifier with mute function
• Background noise monitor for each path
• Volume control range
• 4-point signal sensing
• Microphone and Receive Amplifiers pinned out for flexibility
• Package Outline
2.9 to 4.5V
52dB
40dB
SSOP32
! PACKAGE OUTLINE
NJW1124V
! BLOCK DIAGRAM
Microphone
C6 R2
100n 5.1k
R3 C7
51k 100n
MCI MCO
R4
51k
TLI2
C8 C9 R6
100n 100n 5.1k
R5
10k
TLI1
TXO
LII
R7
51k
C10
LiO-
LiO+
Line Out
V+
V+ R1
300k
C1
1µ
C3
470n
C4
470n
C2
1u
M UT
TLO2
RLO2
CPT
C23
1µ VREF
VREF2
VREF
Mic
Amplifier
Tx Attenuator
Lev el
Detector
Background
NoiseMonitor
Attenuator
Control
VREF
-1
Line Amplifier
Background
NoiseMonitor
Lev el
Detector
C11
V+ 1µ
M onit or
CT
RTSW
C5
1µ
V+
CPR
C22
1µ
TLO1
RLO1
C20
470n
C21
470n
BIAS
IC1
NJW1124
Rx Attenuator
1.2µ A
Receive
Amplifier
GND
VREF
V+ R10
15k
C15
1µ
Speaker
IC2
NJU7084
Power Amplifier
5.0V
+ C16
10µ C13
1µ
RXO RLI2
C17
100n
R11
10k
C14 1 µ
R9
22k
R8 C12
11k 100n
VLC
R12
51k
RVLC
RLI1 FO
C18
100n
R13
5. 1k
FI
R14 C19
5.1k 100n
Recive In
–1–
1 Page NJW1124
! ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
Power Supply Voltage
Power Dissipation
Operating Temperature Range
V+
PD
Topr
5.5
800 (Note1)
-40 ~ +85
Storage Temperature Range
Tstg
-40 ~ +125
Maximum Input Voltage
VIMAX
0 ~ V+
(Note1) EIA/JEDEC STANDARD Test board (76.2x114.3x1.6mm, 2layer, FR-4) mounting
(Note2) Don’t apply the input voltage that exceeds supply voltage.
! OPERATING VOLTAGE
PARAMETER
Operating Voltage
SYMBOL
TEST CONDITION
V+ -
MIN.
2.9
TYP.
4.0
MAX.
4.5
UNIT
V
mW
°C
°C
V
UNIT
V
! ELECTRICAL CHARACTERISTICS (Ta=25°C,V+=4V,MUT=ACTIVE,RTSW=OPEN,RVLC=0Ω,GVM=0dB,ReceiveAmplifierGV=0dB)
PARAMETER
SYMBOL
TEST CONDITION
MIN. TYP. MAX. UNIT
Operating Current 1
Operating Current 2
Operating Current 3
Reference Voltage
ICC1
ICC2
ICC3
VREF
RX-mode (Receive)
TX-mode (Transmit)
Idle-mode
Idle-mode
0.7 2.0 4.0
0.7 2.0 4.0
0.7 2.0 4.0
1.7 2.0 2.3
mA
mA
mA
V
●Receive Attenuator (RxIN=100Vrms,Receive Amplifier Gv=0dB)
PARAMETER
SYMBOL
TEST CONDITION
Receive Attenuator Gain 1
Receive Attenuator Gain 2
Receive Attenuator Gain 3
Range R to T mode
Dynamic DC offset
Volume control range
GR1
GR2
GR3
∆GR
GRDC
GRVR
RX-mode (Receive)
TX-mode (Transmit)
Idle-mode (Standby),CPT=CPR=V+
RX-mode – TX-mode
RX-mode – TX-mode (DC)
RX-mode,RVLC=0Ω-100kΩ
Maximum DetecterSink Current
IRSINKMAX RLI1,TLI1,Maximum Sink Current
MIN.
3.0
-43
-17
47
-50
30
-
TYP.
6.0
-46
-20
52
-
40
-
MAX.
9.0
-50
-23
57
50
50
200
UNIT
dB
dB
dB
dB
mV
dB
µA
●Transmit Attenuator (TxIN=100Vrms,Mic.amplifier Gv=0dB)
PARAMETER
SYMBOL
TEST CONDITION
Transmit Attenuator Gain 1
Transmit Attenuator Gain 2
Transmit Attenuator Gain 3
Range R to T mode
Dynamic DC offset
Volume control range
GT1
GT2
GT3
∆GT
GTDC
GTVR
TX-mode (Transmit)
RX-mode (Receive)
Idle-mode CPT=CPR=V+
TX-mode – RX-mode
TX-mode – RX-mode (DC)
RX-mode,RVLC=0Ω-100kΩ
Maximum DetecterSink Current
IRSINKMAX RLI1,TLI1,Maximum Sink Current
MIN.
3.0
-43
-17
47
-50
31
-
TYP.
6.0
-46
-20
52
-
40
-
MAX.
9.0
-50
-23
57
50
46
200
UNIT
dB
dB
dB
dB
mV
dB
µA
–3–
3Pages NJW1124
! MEASUREMENT CIRCUIT
S2
VIH
VIL
100
1 VREF2
2 MUT
3 NC
V+
OPEN
S4
1u
1k
100n
100n
4 CPT
5 TLO2
6 RLO2
TxIN
MCOUT
TxOUT
LINEIN
LINEOUT
1u
300k S5
0dB 1u
3k
40dB
100n
100n
7
300k
8
9
5.1k
10
5.1k
11
12
1u 5.1k
51k 47p
1.2k(RLL)
13
14
15
CT
M CI
M CO
TLI2
TLI1
TXO
LII
LIO-
LIO+
16 GND
S12
OPEN
V+
S13
OPEN
MON
RTSW
V REF
CPR
RLO1
RLMH
32
31
30
29
28
4.7k
RLML
100
1u
1u
1k
100n
4.7k
M ONOUT
S6
VIH
OPEN
VIL
Vref
S7
V+
OPEN
TLO1 27
100n
S8
0ohm
VLC 26
100k
100k
300k
FI 25
1u 0dB
3k
300k
40dB
S9
FO 24
5.1k
RLI1 23
100n
RLI2 22
5.1k
100n
RXO 21
RxIN
FilterOUT
RxOUT
NC 20
NC 19
NC 18
V+ 17
Icc
1u
V+
–6–
6 Page | |||
ページ | 合計 : 29 ページ | ||
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PDF ダウンロード | [ NJW1124 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
NJW1124 | Voice Switched Speakerphone circuit | NJR Corporation |
NJW1128 | Voice Switched Speakerphone Circuit | NJR Corporation |