G1401.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 G1401 데이타시트 다운로드

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Global Mixed-mode Technology Inc.
G1401
Stereo Headphone Power Amplifier
Features
„Class AB amplifier
„High performance
„High signal-to-noise ratio
„Low distortion
„Low power consumption
„Large output voltage swing
„Excellent power supply ripple rejection
„3.0V to 7.0V supply voltage range
„Surface-Mount package-SOP 8
www.DataSheet4U.com
Applications
„CD-ROM
„DVD-ROM
„CD-R/W
„MP3
„Portable Stereo
„Earphone for cellular phone
General Description
The G1401 is a stereo audio power amplifier housed
in a 8-pin SOP package capable of delivering 135mW
of continuous power per channel into 16Ω loads.
Amplifier gain is externally configured by means of two
resistors per input channel.
The G1401 is a dual channel, low voltage, low power,
performance OP amps that can be designed into a
wide range of headphone driving applications, at an
economical price.
Ordering Information
PART
G1401P1
TEMP. RANGE PIN-PACKAGE
0°C to +70°C
8 SOP
Pin Configuration
G1401
OUTA 1
INA(neg) 2
INA(pos) 3
VSS 4
8 VDD
7 OUTB
6 INB(neg)
5 INB(pos)
Pinning
SYMBOL
OUTA
INA(neg)
INA(pos)
VSS
INB(pos)
INB(neg)
OUTB
VDD
PIN DESCRIPTION
1 output A
2 inverting input A
3 non-inverting input A
4 negative supply
5 non-inverting input B
6 inverting input B
7 output B
8 positive supply
Ver 1.1
Aug 13, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
1

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Global Mixed-mode Technology Inc.
Block Diagram
OUTA 1
G1401
8 VDD
INA(neg) 2
INA(pos) 3
7 OUTB
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VSS 4
_ 6 INB(neg)
+ 5 INB(pos)
G1401
Absolute Maximum Ratings (Note1)
SYMBOL
VDD
Tstg
Tamb
ESD
PARAMETER
Supply voltage
Storage temperature
Operating ambient temperature
ESD voltage
CONDITIONS
HBM
MIN.
0
-65
0
-
Notes:
1. Absolute Maximum Ratings are limits beyond which damage to the device may occur.
MAX.
7.0
+150
+70
2
Thermal Characteristics
SYMBOL
PARAMETER
Rth j-a
Thermal resistance from junction to ambient in free air SO8
VALUE
210
Test and Application Information
VDD
3.9k
220µF
+
VOUTA
RL
UNIT
V
°C
°C
KV
UNIT
°C/W
V IN A
2.2µF 3.9k
V re f
(typ. 2.5V)
V IN B
2.2µF 3.9k
18
2_
3+
G1401
5
6
74
+
C6
100µF
Ver 1.1
Aug 13, 2001
3.9k
220µF
+
VOUTB
RL
Fig.1 Measurement circuit for inverting application
2
TEL: 886-3-5788833
http://www.gmt.com.tw

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Global Mixed-mode Technology Inc.
Electrical Characteristics
VDD = 5V; VSS = 0V ; Tamb = 25°C; fi = 1kHz; RL = 32Ω; unless otherwise specified.
SYMBOL
PARAMETER
Supplies
VDD Supply voltage
Single
Dual
VSS Negative supply voltage
IDD Supply current
Ptot Total power dissipation
DC Characteristics
www.DataSheet4U.comVI(OS)
VCM
CMRR
Input offset voltage
Common mode voltage
Common-Mode Rejection Ratio
GV Open-loop voltage gain
IO Maximum output current
RO Output resistance
VO Output voltage swing
PSRR
Power supply rejection ratio
αCS Channel separation
AC Characteristics
THD
Total harmonic distortion
CONDITIONS
no load
no load
VCM = 0V to 5V
RL = 5kΩ
THD<0.1%
open-loop
RL= 20Ω
RL = 32Ω
note 1
RL = 5kΩ
note 1
fi = 1kHz;
Vripple(peak) = 1V
note 2
MIN.
3.0
3.0
1.5
-1.5
-
-
-15
0
40
70
-
-
1.0
0.1
50
-
fG Unity gain frequency
PO Maximum output power
B Power bandwidth
RL = 5kΩ
note 2
open-loop; RL = 5kΩ
note 1; RL = 16Ω
unity gain inverting
-
2.5
-
-
G1401
TYP. MAX. UNIT
5.0 7.0 V
5.0 7.0 V
2.5 3.5 V
-2.5 -3.5 V
3.0 5.5 mA
15 28 mW
- 15 mV
- 4.0 V
60 dB
90 - dB
100 - mA
1.78 - Ω
- 4.0 V
- 4.9 V
62 - dB
70 - dB
< 0.1
-
%
3.7 5.0 MHz
135 - mW
30 - kHz
Notes:
1. Values are proportional to VDD; THD < 0.1%
2. VDD = 5.0V; VO(P-P) = 4.0V (at 0 dB)
Ver 1.1
Aug 13, 2001
TEL: 886-3-5788833
http://www.gmt.com.tw
3