NJM2705PB1 [NJRC]
Surround Audio Processor for Mobile Applications; 环绕声音频处理器为移动应用程序
| 型号： | NJM2705PB1 |
| 厂家： | 
NEW JAPAN RADIO |
| 描述： | Surround Audio Processor for Mobile Applications |
| 文件： | 总14页 (文件大小：277K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
NJM2705
Surround Audio Processor for Mobile Applications
■ GENERAL DESCRIPTION
■ PACKAGE OUTLINE
The NJM2705 is the surround audio processor for mobile
applications.
It regenerates the 3D surround sound with extremely narrow
space two speakers (2SP mode), headphone surround with
normal headphone (HP mode) and reverberation sound with
only one speaker (1SP mode).
NJM2705PB1
NJM2705SD3
It includes mode control switches for surround function and
standby function and realizes low consumption power design by
standby function.
In addition to SSOP16, ultra small and thin packages FFP16
(Flip-Chip Fine Package) and PCSP16 (Plastic Chip Size
Package) is applied.
It is suitable for cellular phone, PDA and portable game.
NJM2705V
■ FEATURES
■ Operating Voltage
■ Operating Current
1.8 to 6V
0.7mA typ. at Active mode
1µA max. at Standby mode
10µVrms typ
■ Low Output Noise
(2SP/HP/1SP mode, VR : max.)
■ Variable Surround Effect by external resistor
(Adjustable for speaker and headphone independently.)
■ Standby Function
■ Internal Mode Control Switch
■ Bipolar Technology
■ Package Outline
FFP16, PCSP16, SSOP16
■ BLOCK DIAGRAM
LOUT
ROUT
LIN
3D
Enhancer
3D
Filter
1SP
Surround
RIN
Bypass mode
Surround mode
2SP mode
HP mode
1SP mode
- 1 -
NJM2705
■ PIN CONFIGURATION
FFP16 (Top View)
12 11 10
9
1. LIN
2. RIN
9. LMON
10. PS
13
14
15
16
8
7
6
5
3. LOUT
4. ROUT
5. NFSPR
6. NFHPR
7. NFSPL
8. NFHPL
11. SW2
12. SW1
13. STBY
14. V+
15. GND
16. VREF
1
2
3
4
PCSP16 (Top View)
12 11 10
9
1. ROUT
2. LOUT
3. RIN
9. SW1
10. SW2
11. PS
12. LMON
13. NFHPL
14. NFSPL
15. NFHPR
16. NFSPR
13
14
8
7
6
5
4. LIN
5. VREF
6. GND
7. V+
15
16
8. STBY
1
2
3
4
SSOP16 (Top View)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1. NFHPR
2. NFSPR
3. ROUT
4. LOUT
5. RIN
6. LIN
7. VREF
8. GND
9. V+
10. STBY
11. SW1
12. SW2
13. PS
14. LMON
15. NFHPL
16. NFSPL
- 2 -
NJM2705
■ABSOLUTE MAXIMUM RATING (Ta=25°C)
PARAMETER
Supply Voltage
SYMBOL
V+
RATINGS
UNIT
V
7
(FFP16) 400
(PCSP16) TBD
(SSOP16) 300
-20 to +75
Power Dissipation
PD
mW
Operating Temperature Range
Storage Temperature Range
Topr
Tstg
°C
°C
-40 to +125
■OPERATING VOLTAGE
PARAMETER
TEST CONDITION
MIN
1.8
TYP
3.0
MAX
6.0
UNIT
V
SYMBOL
V+
Operating Voltage
-
■ELECTRICAL CHARACTERISTICS (V+=3V, Ta=25°C unless otherwise specified)
TEST CONDITION
PARAMETER
MIN
TYP
MAX
UNIT
SYMBOL
ICC
INPUT
OUT
PUT
SP
VR
HP
VR
MODE
L
R
0
0
Operating
Current
0
0
-
-
Active
-
-
450
0.1
700
1.0
µA
No Signal
No Signal
Standby
Reference
Voltage
Vref
0
0
-
-
1.0
1.15
1.3
V
■AC CHARACTERISTICS
(V+=3V, Ta=25°C, VIN=-20dBV(100mVrms), f=1kHz, RL=10kΩ, unless otherwise specified)
TEST CONDITION
PARAMETER
MIN
TYP
MAX
UNIT
SYMBOL
VIM1
VIM2
VIM3
VIM4
VIM5
VIM6
VIM7
VIM8
VIM9
VIM10
VNO1
VNO2
VNO3
VNO4
INPUT
OUT
PUT
L
SP
VR
HP
VR
MODE
Bypass
2SP
L
R
0
f=1kHz
VIN
0
-2.0
(790)
-16.0
(160)
-16.0
(160)
-16.0
(160)
-14.5
(190)
-8.5
Maximum
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
THD=1%
f=100Hz
VIN
0
R
Input Voltage
VIN
0
L
MAX
-
-
THD=1%
f=100Hz
VIN
0
R
VIN
0
L
HP
MAX
THD=1%
f=100Hz
VIN
R
VIN
0
0
L
L
MAX
MAX
-
-
1SP
THD=1%
f=100Hz
VIN
-
1SP
THD=1%
V+=1.8V,f=1kHz
THD=1%
V+=1.8V,f=100Hz
THD=1%
V+=1.8V,f=100Hz
THD=1%
V+=1.8V,f=100Hz
THD=1%
V+=1.8V,f=100Hz
THD=1%
Rg=0Ω
dBV
VIN
0
0
VIN
0
L
R
L
-10.5
(300)
-24.5
(60)
(mVrms)
Bypass
2SP
-
(380)
-22.5
(75)
VIN
0
MAX
-
-
VIN
0
R
L
VIN
0
-24.5
(60)
-22.5
(75)
HP
MAX
VIN
R
-24.5
(60)
-22.5
(75)
VIN
0
0
VIN
0
L
L
MAX
MAX
-
-
1SP
1SP
-23.0
(70)
-21.0
(90)
-
L
R
L
-112
(2.5)
-106
(5.0)
-94
(20)
-94
(20)
-94
(20)
Output Noise
0
Bypass
1SP
-
-
-
-
-
A-Weighted
Rg=0Ω
-100
(10)
0
0
MAX
-
-
MAX
-
A-Weighted
Rg=0Ω
R
L
dBV
(µVrms)
-100
(10)
0
0
HP
A-Weighted
Rg=0Ω
R
-100
(10)
0
0
L
MAX
1SP
A-Weighted
- 3 -
NJM2705
■AC CHARACTERISTICS
(V+=3V, Ta=25°C, VIN=-20dBV(100mVrms), f=1kHz, RL=10kΩ, unless otherwise specified)
TEST CONDITION
PARAMETER
MIN
TYP
MAX
UNIT
SYMBOL
INPUT
OUT
PUT
SP
VR
HP
VR
MODE
L
R
0
VIN
0
L
R
L
Total Harmonic
Distortion
THD1
THD2
THD3
THD4
GVBYP
f=1kHz
Bypass
2SP
HP
-
-
-
-
0.02
0.1
0.05
0.5
VIN
0
VIN
0
f=1kHz
MAX
-
-
VIN
0
R
L
%
VIN
0
f=1kHz
MAX
-
0.1
0.5
VIN
0
R
L
VIN
0
f=1kHz
MAX
-
-
-
0.1
0.5
1SP
Bypass
2SP
2SP
HP
VIN
0
R
L
VIN
0
BYPASS Gain
f=1kHz
-
-1.0
12.5
0.5
12.5
0.5
6.5
2.0
-5.5
-12.0
0.0
1.0
dB
VIN
0
R
L
VIN
0
Surround Gain
GVSUR1
GVSUR2
GVSUR3
GVSUR4
GVSUR5
GVSUR6
GVSUR7
GVSUR8
f=100Hz
f=100Hz
f=100Hz
f=100Hz
f=100Hz
f=100Hz
f=100Hz
f=100Hz
MAX
MIN
-
-
14.5
2.5
16.5
4.5
VIN
0
R
L
VIN
0
-
VIN
0
R
L
VIN
0
MAX
14.5
2.5
16.5
4.5
VIN
0
R
L
VIN
0
-
MIN
HP
VIN
R
dB
VIN
0
0
L
L
L
L
MAX
MAX
MIN
MIN
-
-
-
-
8.5
10.5
6.0
1SP
1SP
1SP
1SP
VIN
0
4.0
VIN
0
-3.5
-10.0
-1.5
-8.0
VIN
■CONTROL CHARACTERISTICS (V+=3V, Ta=25°C unless otherwise specified)
PARAMETER
MODE Select
TEST CONDITION
MIN
1.2
TYP
MAX
V+
UNIT
V
SYMBOL
VMODE
-
-
VIN=High Level
VIN=Low Level
Control Voltage
0.0
0.3
■SWITCH FUNCTION
SURROUND FUNCTION SW
MODE
Bypass
SW1
L, OPEN
L, OPEN
H
SW2
L, OPEN
H
NOTES
Input Through
2SP mode
HP mode
1SP mode
Surround mode for narrow space two speakers
Surround mode for Headphone
L, OPEN
H
H
Surround mode for monaural speaker (Surround signal from LOUT)
STANDBY SW
MODE
STBY
NOTES
IC is non-active
Standby
L, open
H
Active
IC is active
- 4 -
NJM2705
■TERMINAL DESCRIPTION
PIN No.
PCSP
16
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
Voltage
FFP
16
SSOP
16
V+
V+
1
2
4
3
5
6
LIN
RIN
Lch Input
Rch Input
1.15V
1.15V
1.15V
400
400
6p
VREF
V+
V+
V+
V+
3
4
9
2
1
12
4
3
14
LOUT
ROUT
LMON
Lch Output
Rch Output
Filter terminal
12k
6p
V+
V+
5
6
7
8
16
15
14
13
2
1
16
15
NFSPR
NFHPR
NFSPL
NFHPL
Filter terminal
Filter terminal
Filter terminal
Filter terminal
400
6p
V+
V+
10
11
13
PS
Filter terminal
1.15V
400
400
6p
- 5 -
NJM2705
■TERMINAL DESCRIPTION
PIN No.
PCSP
16
SYMBOL
FUNCTION
EQUIVALENT CIRCUIT
V+
Voltage
FFP
16
SSOP
16
V+
V+
11
12
10
9
12
11
SW2
SW1
Mode control switch
Mode control switch
0V
700
25k
V+
V+
13
8
10
STBY
Standby switch
0V
700
75k
14
15
7
6
9
8
V+
Power Supply
V+
0V
GND
GND
V+
V+
V+
16
5
7
VREF
Reference voltage
1.15V
400
400
6p
- 6 -
NJM2705
■APPLICATION CIRCUIT (FFP16)
1) 2SP mode, HP mode
SW1
SW2
12
11
10
9
SW1
SW2
PS
LMON
STBY
13 STBY
NFHPL
8
7
6
5
MAX
MIN
HP VR
50kB
10µ
V+
14 V+
NFSPL
NFHPR
NFSPR
MAX
MIN
SP VR
50kB
15 GND
16 VREF
1µ
LIN
1
RIN
2
LOUT
3
ROUT
4
Lch IN
Rch IN
Rch OUT
0.1µ
0.1µ
Lch OUT
2) 1SP mode, HP mode
SW1
SW2
12
11
10
9
SW1
SW2
PS
LMON
STBY
13 STBY
NFHPL
8
7
6
5
MAX
MIN
HP VR
50kB
10µ
V+
14 V+
NFSPL
NFHPR
NFSPR
MAX
MIN
SP VR
50kB
15 GND
16 VREF
1µ
LIN
1
RIN
2
LOUT
3
ROUT
4
Lch IN
Rch IN
Rch OUT
Lch OUT
0.1µ
0.1µ
Surround signal is outputted from LOUT terminal at 1SP mode.
- 7 -
NJM2705
■APPLICATION CIRCUIT (PCSP16)
1) 2SP mode, HP mode
SW2
SW1
12
11
10
9
LMON
PS
SW2
SW1
13 NFHPL
STBY
8
7
6
5
STBY
HP VRMAX
50kB
10µ
V+
MIN
14 NFSPL
15 NFHPR
16 NFSPR
V+
GND
MAX
SP VR
50kB
MIN
VREF
1µ
ROUT
LOUT
2
RIN
3
LIN
4
1
Rch OUT
Lch OUT
Lch IN
Rch IN
0.1µ
0.1µ
2) 1SP mode, HP mode
SW2
SW1
12
11
10
9
LMON
PS
SW2
SW1
13 NFHPL
STBY
8
STBY
HP VRMAX
50kB
10µ
V+
MIN
14 NFSPL
15 NFHPR
16 NFSPR
V+
GND
7
6
5
MAX
SP VR
50kB
MIN
VREF
1µ
ROUT
LOUT
2
RIN
3
LIN
4
1
Rch OUT
Lch OUT
Lch IN
Rch IN
0.1µ
0.1µ
Surround signal is outputted from LOUT terminal at 1SP mode.
- 8 -
NJM2705
■APPLICATION CIRCUIT (SSOP16)
SP VR 50kB
HP VR 50kB
1) 2SP mode, HP mode
4.7k
4.7k
HFHPR
NFSPR
ROUT
LOUT
RIN
NFSPL
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
0.0047µ
0.0033µ
0.0047µ
NFHPL
LMON
PS
0.0033µ
Rch OUT
Lch OUT
Rch IN
0.027µ
SW2
SW1
STBY
V+
SW2
SW1
STBY
0.1µ
0.1µ
1µ
100k
1µ
Lch IN
LIN
100k
1µ
VREF
GND
10µ
V+
2) 1SP mode, HP mode
SP VR 50kB
HP VR 50kB
4.7k
4.7k
NFSPL
HFHPR
NFSPR
ROUT
LOUT
RIN
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
0.0047µ
0.0033µ
0.0047µ
NFHPL
LMON
PS
Rch OUT
Lch OUT
Rch IN
1
µ
0.027µ
SW2
SW1
STBY
V+
SW2
SW1
STBY
0.1µ
0.1µ
1µ
100k
1µ
Lch IN
LIN
100k
1µ
VREF
GND
10µ
V+
Surround signal is outputted from LOUT terminal at 1SP mode.
- 9 -
NJM2705
■TYPICAL CHARACTERISTICS
Operating Current vs. Temperature (STANDBY)
Operating Current vs. Operating Voltage (STANDBY)
Ta=25oC
V+=3V
20
1
0.8
0.6
0.4
0.2
0
15
10
5
0
-50
-25
0
25
50
75
100
125
0
1
2
3
4
5
6
7
Ta [oC]
Operating Voltage [V]
Operating Current vs. Operating Voltage (ACTIVE)
Operating Current vs. Temperature (ACTIVE)
Ta=25oC
V+=3V
1000
1000
800
600
400
200
0
800
600
Bypass,2SP,HP,1SP mode
Bypass,2SP,HP,1SP mode
400
200
0
0
1
2
3
4
5
6
7
-50
-25
0
25
50
75
100
125
Ta [oC]
Operating Voltage [V]
Reference Voltage vs. Temperature
Reference Voltage vs. Operating Voltage
Ta=25oC
V+=3V
3.5
3
1.3
1.25
1.2
2.5
2
1.15
1.1
1.5
1
1.05
1
0.5
0
0
1
2
3
4
5
6
7
-50
-25
0
25
50
75
100
125
Ta [oC]
Operating Voltage [V]
- 10 -
NJM2705
■TYPICAL CHARACTERISTICS
Maximum Input Voltage vs. Operating Voltage (BYPASS)
f=1kHz, RL=10kΩ, THD=1%, Ta=25oC
Maximum Input Voltage vs. Operating Voltage (2SP)
Ta= 25oC, f=100Hz SP_VR=MAX, RL=10kΩ, THD=1%
10
-5
-10
-15
-20
-25
-30
5
0
Vin=Lch Vout=Lch
Vin=Rch Vout=Rch
Vin=Lch Vout=Lch
Vin=Rch Vout=Rch
-5
-10
-15
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Operating Voltage [V]
Operating Voltage [V]
Maximum Input Voltage vs. Operating Voltage (HP)
Ta=25oC, f=100Hz, HP_VR=MAX, RL=10k
Maximum Input Voltage vs. Temperature (1SP)
Ta= 25oC, f=100Hz, SP_VR=MAX, RL=10kΩ, THD=1%
Ω
,THD=1%
-5
-5
-10
-15
-20
-25
-30
-10
-15
-20
-25
-30
Vin=Lch Vout=Lch
Vin=Rch Vout=Lch
Vin=Lch Vout=Lch
Vin=Rch Vout=Rch
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Operating Voltage [V]
Operating Voltage [V]
Maximum Input Voltage vs. Temperature (BYPASS)
Maximum Input Voltage vs. Temperature (2SP)
V+=3V, f=1kHz, RL=10kΩ
V+=3V, f=100Hz, RL=10kΩ
THD=1%
SP_VR=MAX, THD=1%
0
-15
Vin=Lch Vout=Lch
Vin=Rch Vout=Rch
Vin=Lch Vout=Lch
Vin=Rch Vout=Rch
-1
-2
-3
-4
-5
-16
-17
-18
-19
-20
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ta [oC]
Ta [oC]
- 11 -
NJM2705
■TYPICAL CHARACTERISTICS
Maximum Input Voltage vs. Temperrature (HP)
Maximum Input Voltage vs. Temperature (1SP)
V+=3V, f=100Hz, RL=10kΩ
HP_VR=MAX, THD=1%
V+=3V, f=100Hz, RL=10kΩ
SP_VR=MAX, THD=1%
-12
-15
-16
-17
-18
-19
-20
Vin=Lch Vout=Lch
-13
Vin=Rch Vout=Lch
Vin=Rch Vout=Rch
-14
-15
Vin=Lch Vout=Lch
-16
-17
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ta [oC]
Ta [oC]
Output Noise Voltage vs. Temperature
V+=3V, Rg=0 , Vout=Lch
SP_VR=MAX, HP_VR=MAX, FILTER=A-Weighted
Output Noise Voltage vs. Temperature
V+=3V, Rg=0 , Vout=Rch
SP_VR=MAX, HP_VR=MAX, FILTER=A-Weighted
Ω
Ω
-90
-90
-95
-100
-105
-110
-115
-120
-95
-100
-105
-110
-115
-120
2SP mode
2SP mode
HP mode
HP mode
1SP mode
Bypass
Bypass
-50
-25
0
25
50
75
100
125
-50
-25
0
25
50
75
100
125
Ta [oC]
Ta [oC]
Total Harmonic Distortion vs. Input Voltage (BYPASS)
Total Harmonic Distortion vs. Input Voltage (2SP)
V+=3V, Vin=Lch, f=1kHz, Vout=Lch
V+=3V, Vin=Lch, f=100Hz, Vout=Lch
RL=10k
Ω
, BW=10Hz-80kHz
RL=10kΩ, BW=10Hz-80kHz, SP_VR=MAX
10
1
10
1
Ta=75oC
Ta=25oC
Ta=-20oC
0.1
0.1
Ta=-20oC
Ta=25oC
Ta=75oC
0.01
0.001
0.01
-50
-40
-30
-20
-10
0
-50
-40
-30
-20
-10
0
Input Voltage [dBV]
Input Voltage [dBV]
- 12 -
NJM2705
■TYPICAL CHARACTERISTICS
Total Harmonic Distortion vs. Input Voltage (HP)
V+=3V, Vin=Lch, f=100Hz, Vout=Lch
Total Harmonic Distortion vs. Input Voltage (1SP)
V+=3V, Vin=Lch, f=100Hz, Vout=Lch
RL=10k , BW=10Hz-80kHz, SP_VR=MAX
RL=10k
Ω
, BW=10Hz-80kHz, HP_VR=MAX
Ω
10
10
1
1
0.1
0.01
0.1
Ta=-20oC
Ta=25oC
Ta=75oC
Ta=-20oC
Ta=25oC
Ta=75oC
0.01
-50
-40
-30
-20
-10
0
-50
-40
-30
-20
-10
0
Input Voltage [dBV]
Input Voltage [dBV]
Frequency Responce (BYPASS)
Frequency Responce (2SP)
V+=3V, Vin=-20dBV Lch, Vout=Lch
V+=3V, Vin=-20dBV Lch, Vout=Lch
RL=10kΩ, Rg=25Ω, SP_VR=MAX
RL=10kΩ, Rg=25Ω
20
15
10
5
1
Ta=75oC
Ta=25oC
0.5
0
Ta=-20oC
Ta=-20,25,75oC
-0.5
-1
0
-5
104
105
10
100
1000
104
105
10
100
1000
Frequency [Hz]
Frequency [Hz]
Frequency Responce (2SP)
Phase vs. Frequency (2SP)
V+=3V, Vin=-20dBV Lch, Vout=Lch
V+=3V, Vin=-20dBV, Lch+Rch
RL=10kΩ, Rg=25Ω, SP_VR=MIN
RL=10kΩ, Rg=25Ω, SP_VR=MAX
90
0
20
15
10
5
Ta=-20,25,75oC
Vout=Rch
-90
-180
-270
Ta=75oC
Ta=25oC
Ta=-20,25,75 oC
Vout=Lch
0
Ta=-20oC
-5
10
100
1000
104
105
10
100
1000
104
105
Frequency [Hz]
Frequency [Hz]
- 13 -
NJM2705
■TYPICAL CHARACTERISTICS
Frequency Responce (HP)
Frequency Responce (HP)
V+=3V, Vin=-20dBV Lch, Vout=Lch
V+=3V, Vin=-20dBV Lch, Vout=Lch
RL=10kΩ, Rg=25Ω, HP_VR=MAX
RL=10kΩ, Rg=25Ω, HP_VR=MIN
20
15
10
5
20
15
10
5
Ta=75oC
Ta=25oC
Ta=-20oC
Ta=75oC
Ta=25oC
Ta=-20oC
0
0
-5
-5
10
100
1000
104
105
10
100
1000
104
105
Frequency [Hz]
Frequency [Hz]
Frequency Responce (1SP)
Frequency Responce (1SP)
V+=3V, Vin=-20dBV, Vout=Lch
V+=3V, Vin=-20dBV, Vout=Lch
RL=10kΩ, Rg=25Ω, SP_VR=MAX
RL=10kΩ,Rg=25Ω, VR=MIN
15
10
5
10
5
o
Vin=Lch
Ta=75 C
Ta=25oC
Ta=-20oC
Vin=Lch Ta=75oC
Ta=25oC
0
Ta=-20oC
Vin=RchTa=75oC
Ta=25oC
0
-5
Ta=-20oC
o
Vin=Rch
Ta=-20 C
Ta=25oC
-5
-10
-15
Ta=75oC
-10
10
100
1000
Frequency [Hz]
104
105
10
100
1000
Frequency [Hz]
104
105
[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.
- 14 -
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