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PDF NJU8713 Data sheet ( Hoja de datos )
| Número de pieza | NJU8713 | |
| Descripción | PWM/PDM | |
| Fabricantes | JRC | |
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NJU8713
2V Operation Switching Driver for Class D Amplifier
GENERAL DESCRIPTION
The NJU8713 is a Switching Driver for a class D
Amplifier including Separated Power Source terminals
between Input and Output, BEEP and BPZ (Bipolar Zero)
output circuits. It converts 1bit digital signal input, such
as PWM or PDM signal, to an analog signal output through
a simple external LC low-pass filter.
The NJU8713 realizes very high power-efficiency
because of the class D operation. Therefore, it is suitable
for portable audio set and others.
PACKAGE OUTLINE
NJU8713V
FEATURES
2-channel 1bit Audio Signal Input
Standby(Hi-Z), BPZ Control
Internal BPZ Charger
Beep Function
Operating Voltage
: 1.7V to 2.7V
Driving Voltage
CMOS Technology
: 1.7V to VDD
Package Outline
: SSOP14
PIN CONFIGURATION
MCK
VSS
IN1
EN1
VSSO
OUT1
VDDO
1
2
3
4
5
6
7
14
13
12
11
10
9
8
BEEP
VDD
IN2
EN2
VSSO
OUT2
VDDO
BLOCK DIAGRAM
VDD VSS
IN1
BEEP
BPZ Output
IN2
Output Control
MCK EN1 EN2
BPZ Output
VDDO VSSO
OUT1
OUT2
Ver.2004-06-02
-1-
1 page  
www.DataSheet4U.com
NJU38575153
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Operation Supply Voltage
Driving Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Power Dissipation SSOP14
Power Supply Voltage Condition
SYMBOL
VDD
VDDO
Vin
Topr
Tstg
PD
-
RATING
-0.3 to +4.0
-0.3 to +2.7
-0.3 to VDD+0.3
-40 to +85
-40 to +125
300
VDD ≥ VDDO
(Ta=25°C)
UNIT
V
V
V
°C
°C
mW
V
Note 1) All voltage values are specified as VSS=VSSO=0V.
Note 2) If the LSI is used on condition beyond the absolute maximum rating, the LSI may be destroyed.
Using LSI within electrical characteristics is strongly recommended for normal operation. Use beyond
the electrical characteristics conditions will cause malfunction and poor reliability.
Note 3) Decoupling capacitors should be connected between VDD-VSS and VDDO-VSSO due to the stabilized
operation.
ELECTRICAL CHARACTERISTICS
(Ta=25°C, VDD=VDDO=2.0V, VSS=VSSO=0.0V, Load Impedance=32Ω, fS=44.1kHz, unless otherwise noted)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX. UNIT
VDD Supply Voltage
VDD
1.7 2.0 2.7 V
VDDO Supply Voltage
BPZ Driving Voltage
Output Driver
High side Resistance
Output Driver
Low side Resistance
Beep
High side Current
Beep
Low side Current
Operating Current
At Standby
Operating Current
At no input signal
Input Voltage
VDDO
VBPZ
RH
RL
IBH
IBL
IST
IDD
IDDO
VIH
VIL
load operating
MCK=256fS
IN1, IN2=32fS Duty50%
VOUT=VDDO-0.1V
1.7
VDDO /2-0.2
-
VOUT=0.1V
-
VOUT=VDDO-1V
20
VOUT=1V
Stopping MCK, IN1, IN2,
BEEP
No-load operating
IN1, IN2=32fS
MCK=256fS
20
-
-
-
0.7VDD
0
2.0
VDDO /2
1.5
1.5
50
50
-
0.05
0.6
-
-
VDD V
VDDO /2+0.2 V
2
2
150
150
1
0.1
1.2
VDD
0.3VDD
Ω
Ω
uA
uA
uA
mA
V
V
Input Leakage Current
ILK
- - ±1 uA
Ver.2004-06-02
-5-
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet NJU8713.PDF ] | |
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