NJRC NJM2151A Monaural power amp. & headphone power amp. ic Datasheet

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NJM2151A
MONAURAL POWER AMP. & HEADPHONE POWER AMP. IC
■ GENERAL DESCRIPTION
The NJM2151A is a monaural audio power amplifier and
stereo headphone amplifier for wide voltage operation.
The NJM2151A was stereo headphone power amplifier
for low distortion single-end output , and monaural power
amplifier for high power bridge(BTL).
The NJM2151A operate low voltage supply , low
operating current and low power-down current.
The NJM2151A includes MUTE , SUSPEND mode, and
suitable for NOTE PC, PDA, CAMCODER, and other
battery equipment.
The NJM2151AVF1 is packaged in the power package.
■ FEATURES
●Operating Voltage
(2.7V to 9.0V)
●Electric Volume Function (Headphone Amplifier)
●LINE Input Mode
●System BEEP Input
(Headphone)
●BEEP Level Control Function
●BEEP Input
(Monaural Amplifier)
●Suspend Mode
(Monaural Amplifier , Headphone Amplifier)
●Mute Mode
(Headphone Amplifier)
●Bipolar Technology
●Package Outline
NJM2151A: DMP20,SSOP20,SSOP20-F1
■ PACKAGE OUTLINE
NJM2151AM
NJM2151AV
NJM2151AVF1
■ PIN CONFIGURATION
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
PIN CONFIGURATION
1. EVR
2. LINE IN L
3. MUTE
4. LINE IN R
5. BEEP BIAS
6. SYS.BEEP IN
7. SP.IN
8. BEEP IN
9. HP.SUSPEND
10.SP.SUSPEND
11.SP.GND
12.LM
13.SP.OUT 2
14.SP.OUT 1
15.BEEP LEVEL
+
16.SP.V
17.HP.GND
18.HP.OUT R
19.HP.OUT L
+
20.HP.V
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NJM2151A
■ ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
+
Supply Voltage
V
Power Dissipation
Operating Temperature Range
Storage Temperature Range
PD
Topr
Tstg
RATINGS
15
(DMP)
375
(SSOP)
375
(SSOP-F1) 750
-40 to +85
-50 to +150
(Ta=25°C)
UNIT
V
■ RECOMMENDED OPERATING CONDITIONS
PARAMETER
SYMBOL
TEST CONDITION
Operating Voltage
Vopr
+2.7 to +9.0
+
mW
°C
°C
(Ta=25°C)
UNIT
V
+
■ ELECTRICAL CHARACTERISTICS (HP V =SP, V =5V,Ta=25°C)
● Operating Current
PARAMETER
SYMBOL
TEST CONDITION
Operating Current
Iq
No Signal :IqHP+IqSP
Operating Current
Iqs
No Signal :IqHP+IqSP,VHS=L,VSS=L
(Suspend Mode)
● HEADPHONE 1 (INPUT:LINE IN L/R,OUTPUT:HP OUT L/R)
PARAMETER
SYMBOL
TEST CONDITION
Output Voltage Level
Vohp1
Vin=-10.0dBV
Total Harmonic Distortion THDhp
Vin=-10.0dBV (note1)
Vin=-10.0dBV (note2),
EVR Adjustable Range
Gevr
+→
Vevr=HP V GND
Maximum Output Level
Vomhp
THD=1% (note1)
Output Remain
Vonhp
Rg=1kΩ (note2)
Crosstalk
CThp
Vin=-10dBV (note2)
Muting Level
MThp
Vin=-10dBV:VM=H (note2)
● HEADPHONE 2 (INPUT:SYSTEM BEEP IN,OUTPUT:HP OUT L/R)
PARAMETER
SYMBOL
TEST CONDITION
Output Voltage Level
Vohp2
Vin=3.0Vp-p
Input Threshold Level
VTHHP
MIN.
-
TYP.
3.0
MAX.
5.0
UNIT
mA
-
252
422
µA
MIN.
-7.4
-
TYP.
-4.0
0.1
MAX.
-1.5
1.0
UNIT
dBV
%
70
90
-
dB
+0.6
-80
-79
-94
-73
-70
-83
dBV
dBV
dBV
dBV
TYP.
0.32
-
MAX.
0.42
5.00
UNIT
Vp-p
Vp-p
-1.6
-
MIN.
0.22
4.50
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NJM2151A
● SPEAKER AMP1 (INPUT:SP IN,OUTPUT:SP OUT1/2)
PARAMETER
SYMBOL
TEST CONDITION
Output Voltage Level
Vosp
Vin=-10.0dBV
Total Harmonic Distortion THDsp
Vin=-10.0dBV (note1)
Maximum Output Level
VOMsp
THD=3% (note1)
MIN.
-1.4
+3.5
TYP.
+2.0
0.7
+5.7
MAX.
+4.5
2.0
-
UNIT
dBV
%
dBV
Output Remain Noise
Vonsp
Rg=1kΩ (note2)
-
-82
-78
dBV
Line Mix Off Level
Vooffsp
Vin=-12dBV,VL=H (note2)
-
-78
-70
dBV
MIN.
-7.4
TYP.
-4.0
MAX
-1.5
UNIT
dBV
MIN.
GND
1.5
TYP.
-
MAX.
0.4
+
V
UNIT
V
V
HEADPHONE SUSPEND CONTROL (9pin:HPSUS-CTRL)
PARAMETER
SYMBOL
TEST CONDITION
HP Suspend On
VHPSL
HP Suspend Off
VHPSH
MIN.
GND
1.5
TYP.
-
MAX.
0.4
+
V
UNIT
V
V
SPEAKER SUSPEND Control (10pin:SPSUS-CTRL)
PARAMETER
SYMBOL
TEST CONDITION
SP Suspend On
VSPSL
SP Suspend Off
VSPSH
MIN.
GND
1.5
TYP.
-
MAX.
0.4
+
V
UNIT
V
V
LINE MIX ON/OFF Control (12pin:LINE MIX ON/OFF CTRL)
PARAMETER
SYMBOL
TEST CONDITION
Line Mix On
VLL
Line Mix Off
VLH
MIN.
GND
1.5
TYP.
-
MAX.
0.4
+
V
UNIT
V
V
● SPEAKER AMP2 (INPUT:PM BEEP IN,OUTPUT:SP OUT 1/2)
PARAMETER
SYMBOL
TEST CONDITION
Output Level
Vosp2
Vin=-10.0dBV
(noet1):B.W.=0.4 to 30kHz ,(note2):CCIR
● CONTROL BLOCK
MUTE CONTROL (3pin:MUTE-CTRL)
PARAMETER
SYMBOL
HP Mute Off
VML
HP Mute On
VMH
TEST CONDITION
(Note) Unless specified, tested with next mode below.
FUNCTION
SYMBOL PIN.No
EVR Control
Vevr
1pin
Mute Control
VM
3pin
Headphone Suspend Control
VHS
9pin
Speaker Suspend Control
VHS
10pin
Line Mix Control
VL
12pin
CONDITION
+
Vevr=V
VM=L
VHS=H
VSS=H
VL=L
STATUS
EVR=Max
Mute Off
Suspend Off
Suspend Off
Line Mix On
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NJM2151A
■ BLOCK DIAGRAM
20
19
18
17
16
15
14
13
12
11
HP.V+
SP.V+
+
VR
VR
SP.
SUSPEND
+
+
1
2
+
HP.
SUSPEND
3
4
5
6
7
8
9
10
+
■ PIN FUNCTION (SP V =3.0V,HP V =3.0V)
PIN No.
SYMBOL
FUNCTION
1
2
EVR
LINE-IN-L
EVR Control
Line Lch Input
PIN
VOLTAGE(V)
1.5
3
MUTE
Headphone Mute Control
3.0
4
5
6
7
LINE-IN-R
BEEP BIAS
SYS.BEEP-IN
SP.IN
Line Rch Input
Bias
System BEEP Input
Speaker Amp. Input
2.5
1.5
1.5
1.5
8
9
10
11
BEEP IN
HP.SUSPEND
SP.SUSPEND
SP.GND
Speaker BEEP Input
Headphone Suspend
Speaker Suspend Control
GND for Speaker
1.5
0.0
12
LM
Speaker Line Mix On/Off Control
3.0
13
SP.OUT2
BTL Invert Output
1.5
14
SP.OUT1
BTL Non-Invert Output
1.5
15
16
17
18
BEEP LEVEL
+
SP.V
HP.GND
HP.OUT R
System BEEP Output Level Control
Supply for Speaker
GND for Headphone
Headphone Rch Output
2.3
3.0
0.0
1.5
19
HP.OUT L
Headphone Lch Output
1.5
20
HP.V
Supply for Headphone
3.0
+
EQUIVARENT
CIRCUIT
Base(PNP)
Base(PNP)
100kΩ Pull Down
Base(PNP)
Base(PNP)
64kΩ
Base(PNP)
Base(PNP)
Base(PNP)
Base(PNP)
Base(PNP)
100k ΩPull Up
Base(PNP)
Emitter Follower
(NPN)
Emitter Follower
(NPN)
C(PNP)-3kΩ
Emitter Follower
(NPN)
Emitter Follower
(NPN)
-
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NJM2151A
■ TEST CIRCUIT
HP.V+
EVR
HP.V+
1
LINE-IN-L
27kΩ
2
+
VR
19
0.47uF
MUTE 1kΩ
3
LINE-IN-R
44
27kΩ
0.47uF
1kΩ
22uF
SYS.BEEP IN
+
VR
1kΩ
BEEP IN
1kΩ
HP.OUT L
47uF 100Ω
HP.OUT R
100Ω
17
SP.V+
5
HP GND
390kΩ
15
SP.OUT 1
0.47uF
15kΩ
0.47uF
+
7
14
0.47uF
SP.OUT 2
8Ω
18kΩ
1kΩ
SP.V+
16
33kΩ
SP IN
47uF
18
6
HP.SUSPEND
20
13
8
LM
9
HP.SUSPEND
12
10
SP.SUSPEND
11
SP.SUSPEND
SP.GND
■ CONTROL TERMINAL EXPLANATION
1:MUTE CTRL (3pin)
PARAMETER
STATUS
HP. Mute On
H
HP. Mute Off
L
NOTE
HP.AMP. is not given off signal.
HP.AMP. is given off signal.
2:HP.SUSPEND CTRL (9pin)
PARAMETER
STATUS
HP. Suspend Off
H
HP. Suspend On
L
NOTE
HP.AMP. is active.
HP.AMP. is non-active.
3:SP.SUSPEND CTRL (10pin)
PARAMETER
STATUS
SP. Suspend Off
H
SP. Suspend On
L
NOTE
SP.AMP. is active.
SP.AMP. is non-active.
4:LINE MIX ON/OFF CTRL (12pin)
PARAMETER
STATUS
Line Mix Off
H
Line Mix On
L
NOTE
Signal don’t get in SP.AMP.
Signal get in SP.AMP.
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NJM2151A
■ APPLICATION CIRCUIT
+
VE
HP.V
1
+
HP.V
20
+
LINE L
2
+
19
VR
L
VM
18
3
R
LINE R
4
+
17
VR
+
SP.V
+
5
SP.V
16
+
SYSTEM
BEEP IN
6
15
SP.IN
+
7
14
MONO.
SPEAKER
PM BEEP IN
8
13
VHS
VL
9
HP.SUSPEND
12
10
SP.SUSPEND
11
VSS
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NJM2151A
■ EQUIVARENT CIRCUIT
PIN No.
FUNCTION
EQUIVARENT CIRCUIT
PIN No.
FUNCTION
+
+
V
V
1PIN
1
EQUIVARENT CIRCUIT
100KΩ
EVR
6
SYS.BEEP
IN
6PIN
Vref
FB
20KΩ
48KΩ
GND
GND
+
+
V
V
2PIN
7PIN
2
LINE-IN-L
7
SP.IN
FB
30KΩ
GND
GND
+
+
V
V
20KΩ
8PIN
3
MUTE
8
3PIN
BEEP-IN
20KΩ
100kΩ
GND
GND
+
To
+
V
V
4PIN
4
LINE-IN-R
9
HP.SUSPE
ND
9PIN
100KΩ
GND
GND
+
+
V
V
5PIN
5
BEEP BIAS
64KΩ
10
SP.SUSPE
ND
10PIN
GND
100KΩ
GND
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NJM2151A
■ EQUIVARENT CIRCUIT
PIN No.
FUNCTION
11
SP.GND
EQUIVARENT CIRCUIT
V
PIN No.
FUNCTION
16
SP.V
17
HP.GND
EQUIVARENT CIRCUIT
+
+
100KΩ
12
LM
12PIN
GND
V
+
13PIN
13
V
+
18PIN
20KΩ
SP.OUT 2
18
58KΩ
HP.OUT R
NFB
NFB
GND
V
14PIN
14
GND
+
SP.OUT 1
V
19PIN
20KΩ
NFB
19
HP.OUT L
GND
V
15
BEEP
LEVEL
GND
20
+
HP.V
58KΩ
NFB
GND
+
15PIN
+
MEMO
[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.
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