NJW1156AV [NJRC]
Volume Control Circuit, 2 Channel(s), BICMOS, PDSO20, SSOP-20;
| 型号： | NJW1156AV |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Volume Control Circuit, 2 Channel(s), BICMOS, PDSO20, SSOP-20 ISM频段 信息通信管理 光电二极管 商用集成电路 |
| 文件： | 总12页 (文件大小：127K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJW1156A
2-CHANNEL ELECTRONIC VOLUME WITH INPUT SELECTOR
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
NJW1156A is a two channel electronic volume with 5
input selector. It’s suitable for Input signal trimmer of
audio equipments such as DVD / HDD recorder and
VCR. These functions are controlled by I2C Bus.
NJW1156A changes high input impedance (38.5kΩ)
compared with NJW1156.
NJW1156AV
■ FEATURES
■ Operating Voltage
■ I2C Bus control
■ 5 Input Selector
■ Volume
8 to 13V
0 to –39.5dB/0.5dBstep, MUTE
SSOP20
■ Bi-CMOS Technology
■ Package Outline
■ BLOCK DIAGRAM
A/D
INPUTS
INPUTS
I2C Control
V+
V+
GND
GND
A/D
NJW1156A
■ PIN FUNCTION
No.
1
SYMBOL
GND
FUNCTION
Ground
R channel Input 1
R channel Input 2
R channel Input 3
R channel Input 4
R channel Input 5
R channel Output
2
R1IN
3
R2 IN
R3IN
4
5
R4IN
6
R5IN
20
1
11
10
7
ROUT
VSSOUT
SCL
Internal VSS Noise Rejection Capacitor Terminal
8
I2C Clock Input
9
I2C Data Input
10
11
12
13
14
15
16
17
18
19
20
SDA
Internal VDD Noise Rejection Capacitor Terminal
Reference Voltage Output
Power Supply
Reference Voltage Noise Rejection Capacitor Terminal
L channel Output
VDDOUT
VREFOUT
V+
VREFIN
LOUT
L5IN
L channel Input 5
L channel Input 4
L4IN
L channel Input 3
L3IN
L channel Input 2
L2IN
L channel Input 1
L1IN
■ ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
SYMBOL
RATING
15
UNIT
Power Supply Voltage
V+
V
mW
°C
Power Dissipation
PD
300
Operating Temperature Range
Storage Temperature Range
Topr
-20 to +75
-40 to +125
Tstg
°C
■ ELECTRICAL CHARACTERISTICS (Ta=25°C,V+=+12V)
PARAMETER
■ Power Supply
SYMBOL
TEST CONDITION
MIN.
TYP.
MAX.
UNIT
Operating Voltage
Reference Voltage
Supply Current
V+
Vref
ICC
-
-
8
5.5
-
12
6
13
6.5
6.8
V
V
No signal
4.5
mA
■ Input/Output Characteristics
f=1kHz,THD=1%
Volume=0dB
VIN=1Vrms, f=1kHz
Volume=0dB
VIN=1Vrms, f=1kHz
Volume=-20dB
Maximum Output Voltage
VOM
GV1
3.0
-0.5
-21
-42.0
-0.5
-
4.0
0
-
0.5
-19
-37.0
0.5
-
Vrms
dB
Voltage Gain 1
Voltage Gain 2
Voltage Gain 3
Voltage Gain Error
Mute Level
GV2
-20
-39.5
0
dB
VIN=1Vrms, f=1kHz
Volume=-39.5dB
VIN=1Vrms, f=1kHz
Volume=-20dB , Ach - Bch
f=1kHz, VIN=1Vrms
Volume=Mute, A-weight
Volume=0dB,
GV3
dB
∆GV
Mute
VNO
dB
-100
dB
-110
(3.2µ)
-100
(10µ)
dBV
(Vrms)
Output Noise
-
Rg=0,A-weight
f=1kHz,Vo=1Vrms,
Total Harmonic Distortion
Channel Separation
THD
CS
Volume=0dB
-
-
0.0015
0.05
%
BW : 400Hz - 30kHz
f=1kHz,Vo=1Vrms,
Volume=0dB
-100
-90
dB
Rg=0Ω, A-weight
– 2 –
NJW1156A
■ I2C BUS BLOCK CHARACTERISTICS (SDA,SCL)
PARAMETER
SYMBOL
VIH
MIN.
2.5
0
TYP.
MAX.
UNIT
V
High Level Input Voltage
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
5.0
Low Level Input Voltage
VIL
1.5
V
High Level Input Current
IIH
-
10
µA
µA
V
Low Level Input Current
IIL
-
10
Low Level Output Voltage (3mA at SDA pin)
Maximum Output Current
VOL
0
0.4
IOL
-3.0
-
-
mA
kHz
µs
µs
µs
µs
µs
µs
ns
µs
ns
µs
Maximum Clock Frequency
Data Change Minimum Waiting Time
Data Transfer Start Minimum Waiting Time
Low Level Clock Pulse Width
High Level Clock Pulse Width
Minimum Start Preparation Waiting Time
Minimum Data Hold Time
fSCL
100
tBUF
4.7
4.0
4.7
4.0
4.7
5.0
250
-
-
tHD:STA
tLOW
tHIGH
tSU:STA
tHD:DAT
tSU:DAT
tR
-
-
-
-
-
Minimum Data Preparation Time
Rise Time
-
1.0
300
-
Fall Time
tF
-
Minimum Stop Preparation Waiting Time
tSU:STO
4.0
I2C BUS Load Condition:
Pull up resistance 4kΩ (Connected to +5V)
Load capacitance 200pF (Connected to GND)
SDA
SCL
tBUF
tR
tF
tHD:STA
tSU:STA
tSU:STO
tHD:STA tLOW
tHD:DAT
tHIGH
tSU:DAT
Sr
P
S
P
– 3 –
NJW1156A
! TERMINAL DESCRIPTION
TERMINAL
DC
VOLTAGE
PIN
SYMBOL
NO.
FUNCTION
EQUIVALENT CIRCUIT
2
3
R1IN
R2IN
R3IN
R4IN
R5IN
L5IN
L4IN
L3IN
L2IN
L1IN
R channel Input 1
V+
R channel Input 2
R channel Input 3
R channel Input 4
R channel Input 5
L channel Input 5
L channel Input 4
L channel Input 3
L channel Input 2
L channel Input 1
4
5
6
V+/2
16
17
18
19
20
300
150K
50K
VREF
VREF
GND
V+
400
7
ROUT
Rch Output
Lch Output
V+/2
15
LOUT
GND
V+
VSS_OUT
=Vref – 2.5V
8
11
VSS_OUT
VDD_OUT
Internal VSS Noise Rejection Capacitor Terminal
Internal VDD Noise Rejection Capacitor Terminal
VDD_OUT
=Vref + 2.5V
GND
4K
8K
9
SCL
I2C Clock Input
-
GND
– 4 –
NJW1156A
! TERMINAL DESCRIPTION
TERMINAL
DC
VOLTAGE
PIN
SYMBOL
NO.
FUNCTION
EQUIVALENT CIRCUIT
4K
10
SDA
I2C Data Input
-
8K
GND
V+
400
V+/2
VREFOUT
12
Reference Voltage Output
GND
13
V+
Power Supply
V+
GND
V+
50K
14
VREFIN
Reference Voltage Noise Rejection Capacitor
Terminal
V+/2
50K
GND
– 5 –
NJW1156A
■ APPLICATION CIRCUIT
20
19
1
2
GND
L1IN
L2IN
L3IN
L4IN
L5IN
LOUT
10µF
10µF
10µF
10µF
10µF
10µF
10µF
10µF
10µF
10µF
10µF
10µF
R1IN
R2IN
R3IN
R4IN
R5IN
ROUT
3
18
4
17
16
5
6
15
14
10µF
1µF
VREFIN
V+
7
VSSOUT
I2C
8
13
12
100µF
SCL
SDA
9
10µF
10µF
VREFOUT
VDDOUT
Interface
10
11
– 6 –
NJW1156A
■ DEFINITION OF I2C REGISTER
♦ I2C BUS FORMAT
MSB
LSB
MSB
LSB
MSB
LSB
S
Slave Address
A
Select Address
A
Data
A
P
1bit
8bit
1bit
8bit
1bit
8bit
1bit 1bit
S: Starting Term
A: Acknowledge Bit
P: Ending Term
♦ SLAVE ADDRESS
MSB
LSB
1
0
0
0
0
0
1
0
♦ CONTROL REGISTER TABLE
The select address sets each function (Volume, Selector).
The auto increment function cycles the select address as follows.
00H■01H■02H■00H
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
00H
01H
02H
VOL-L
VOL-R
Don’t Care
Don’t Care
Don’t Care
TEST
Selector
Don’t Care
♦ CONTROL REGISTER DEFAULT VALUE
Control register default values are as follows :
Select
BIT
D4
D3
D2
D1
D0
Address
D7
D6
D5
00H
01H
02H
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
1
1
0
– 7 –
NJW1156A
■ CONTROL COMMAND TABLE
a) Master Volume
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
00H
01H
VOL-L
VOL-R
Don’t Care
Don’t Care
•VOL-L / VOL-R: Lch and Rch volume level setting from 0dB to –39.5dB with 0.5dB step.
VOL-L / VOL-R
Gain (dB)
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
•••
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
•••
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
•••
0
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
•••
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
•••
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
•••
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
•••
1
1
-0.5
-1
-1.5
-2
-2.5
-3
-3.5
-4
-4.5
-5
-5.5
-6
-6.5
-7
-7.5
-8
-8.5
-9
-9.5
-10
-10.5
-11
-11.5
-12
-12.5
-13
-13.5
-14
-14.5
-15
-15.5
-16
-16.5
-17
-17.5
-18
-18.5
-19
-19.5
-20
•••
-39.5
Mute
– 8 –
NJW1156A
b)Input Selector
BIT
Select
Address
D4
D3
D2
D1
D0
D7
D6
D5
02H
TEST
Selector
Don’t Care
Don’t Care
•TEST : Test Mode(User Inhibit). The command “TEST”(D6, D5) must be “0”.
•Selector : Input signal selecting
Selector
D0
Input
D2
0
0
0
0
D1
L1IN / R1IN
L2IN / R2IN
L3IN / R3IN
L4IN / R4IN
L5IN / R5IN
0
0
1
1
0
1
0
1
0
1
0
– 9 –
NJW1156A
! TYPICAL CHARACTERISTICS
Operating Current vs. Supply Voltage
Ta=25oC
Voltage Gain vs. Attenuater Set Level
Ta=25oC
4.5
4
0
-5
3.5
3
-10
-15
-20
-25
-30
-35
-40
-45
2.5
2
L1,R1IN
1.5
1
0.5
0
0
-5 -10 -15 -20 -25 -30 -35 -40 -45
0
-40
0
5
10
15
Attenuator Set Level [dB]
Supply Voltage [V]
THD+N vs. Input Level
V+=12V, VOL=0dB, BW=10Hz-80kHz
INPUT:L1IN, OUTPUT:LOUT
THD+N vs. Input Level
V+=12V, f=1kHz, BW=10Hz-80kHz
INPUT:L1IN, OUTPUT:LOUT
10
1
10
-20dB
1
0.1
-30dB
0.1
20kHz
0.01
0.001
0.01
0dB
20Hz,1kHz
-10dB
0.001
-20
Input Level [dB]
0
20
-40
-20
0
20
Input Level [dB]
Operating Current vs. Supply Voltage
Operating Current vs. Ambient Temperature
V+=12V
5
4
3
2
1
0
5
4.5
4
25oC
125oC
-40oC
3.5
3
-50
0
50
100
150
5
10
15
Ambient Temperature [oC]
Supply Voltage [V]
– 10 –
NJW1156A
! TYPICAL CHARACTERISTICS
Voltage Gain vs. Ambient Temperature
V+=12V,Vin=1V,f=1kHz,Vol=0dB
Attenuation Level vs. Ambient Temperature
V+=12V,Vin=1V,f=1kHz,Vol=-20dB
-10
-15
-20
-25
-30
1.0
0.5
0.0
L1,R1IN
-0.5
L1,R1IN
-1.0
-50
0
50
100
150
-50
0
50
100
150
Ambient Temperature [oC]
Ambient Temperature [oC]
Attenuation Level vs. Ambient Temperature
V+=12V,Vin=1V,f=1kHz,Vol=-39.5dB
Attenuation Level vs. Ambient Temperature
V+=12V,Vin=1V,f=1kHz,Vol=Mute
-30
-80
-85
-90
-35
-40
-45
-50
R1IN
L1IN
-95
-100
-105
-110
-115
-120
-125
-130
L1,R1IN
-50
0
50
100
150
-50
0
50
100
150
Ambient Temperature [oC]
Ambient Temperature [oC]
Maximam Output Voltage vs. Ambient Temperature
V+=12V,f=1kHz,THD+N=1%,Vol=0dB
Output Noise Level vs. Ambient Temperature
V+=12V,Rg=0Ω,Vol=0dB,A-w eight
13.0
12.5
12.0
11.5
11.0
10.5
10.0
9.5
-60
-70
-80
-90
L1,R1IN
R1IN
L1IN
-100
-110
-120
-130
9.0
-50
0
50
100
150
-50
0
50
100
150
Ambient Temperature [oC]
Ambient Temperature [oC]
– 11 –
NJW1156A
! TYPICAL CHARACTERISTICS
THD+N vs. Ambient Temperature
V+=12V,Vin=1V,f=1kHz,THD+N=1%,Vol=0dB
10
1
0.1
L1IN
0.01
R1IN
0.001
-50
0
50
100
150
Ambient Temperature [oC]
[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.
– 12 –
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