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G1428F31U Datasheet

  • G1428F31U

  • 2W Stereo Audio Amplifier

  • 339.02KB

  • 16頁

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Global Mixed-mode Technology Inc.
Absolute Maximum Ratings
Supply Voltage, V
CC
鈥︹€︹€︹€︹€︹€︹€?.鈥?..鈥︹€?鈥︹€?..6V
Operating Ambient Temperature Range
T
A
鈥︹€?鈥︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€?鈥︹€︹€?-40擄C to +85擄C
Maximum Junction Temperature, T
J
鈥?.鈥︹€︹€?鈥?150擄C
Storage Temperature Range, T
STG
鈥?鈥?65擄C to+150擄C
Reflow Temperature (soldering, 10sec)鈥?鈥︹€?.260擄C
Note:
(1)
(2)
G1428
Power Dissipation
(1)
T
A
鈮?/div>
25擄C 鈥?..鈥︹€?鈥?鈥︹€︹€︹€︹€?鈥?鈥︹€︹€?.2.7W
T
A
鈮?/div>
70擄C 鈥︹€︹€︹€︹€?鈥︹€︹€︹€︹€︹€?.鈥︹€︹€?.1.7W
Electrostatic Discharge, V
ESD
Human body mode..鈥︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€︹€?000
(2)
: Recommended PCB Layout
: Human body model : C = 100pF, R = 1500惟, 3 positive pulses plus 3 negative pulses
Electrical Characteristics
DC Electrical Characteristics, T
A
=+25擄C
PARAMETER
Supply voltage VDD
High-Level Input voltage, V
IH
Low-Level Input voltage, V
IL
DC Differential Output Voltage
Supply Current in Mute Mode
I
DD
in Shutdown
SYMBOL
V
DD
V
IH
V
IL
V
O(DIFF)
I
DD
I
SD
CONDITION
SE/
BTL
,
HP/
LINE
,
SHUTDOWN
, GAIN0 ,
GAIN1
SE/
BTL
,
HP/
LINE
,
SHUTDOWN
, GAIN0,
GAIN1
V
DD
= 5V,Gain = 2
V
DD
= 5V
V
DD
= 5V
Stereo BTL
Stereo SE
MIN
4.5
3.5
---
---
---
---
TYP
5
---
---
5
7.5
4
160
MAX
5.5
---
1
50
13
7
300
UNIT
V
V
V
mV
mA
碌A(chǔ)
(AC Operation Characteristics, V
DD
= 5.0V, T
A
=+25擄C, R
L
= 4惟, unless otherwise noted)
PARAMETER
SYMBOL
CONDITION
THD = 1%, BTL, R
L
= 4惟 G=-2V/V
THD = 1%, BTL, R
L
= 8惟 G=-2V/V
THD = 10%, BTL, R
L
= 4惟 G=-2V/V
THD = 10%, BTL, R
L
= 8惟 G=-2V/V
THD = 0.1%, SE, R
L
= 32惟
P
O
= 1.6W, BTL, R
L
= 4惟 G=-2V/V
P
O
= 1W, BTL, R
L
= 8惟 G=-2V/V
P
O
= 75mW, SE, R
L
= 32惟
V
I
= 1V, RL = 10K惟, SE
THD = 5%
F=1kHz, BTL mode G=-2V/V
C
BYP
=1碌F
f = 1kHz
MIN
---
---
---
---
---
---
---
---
---
---
---
---
---
---
TYP
2
1.25
2.5
1.6
85
100
60
80
30
>15
68
MAX
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
UNIT
W
Output power (each channel) see Note
P
(OUT)
mW
Total harmonic distortion plus noise
THD+N
m%
Maximum output power bandwidth
Power supply ripple rejection
Channel-to-channel output separation
Line/HP input separation
BTL attenuation in SE mode
Input impedance
Signal-to-noise ratio
Output noise voltage
B
OM
PSRR
kHz
dB
dB
dB
dB
M惟
dB
碌V (rms)
ZI
V
n
P
O
= 500mW, BTL, G=-2V/V
BTL, G=-2V/V, A Weighted filter
80
80
85
See Table 2
---
90
---
45
Note :Output power is measured at the output terminals of the IC at 1kHz.
Ver: 1.2
Mar 31, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
2

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