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参数资料
| 型号： | G1421F |
| 厂商： | Global Mixed-mode Technology Inc. |
| 英文描述： | 2W Stereo Audio Amplifier with No Headphone Coupling Capacitor Function |
| 中文描述： | 2W立体声音频放大器耦合电容器没有耳机功能 |
| 文件页数： | 13/24页 |
| 文件大小： | 442K |
| 代理商： | G1421F |
Ver: 1.6
Aug 04, 2005
TEL: 886-3-5788833
http://www.gmt.com.tw
20
G1421
Global Mixed-mode Technology Inc.
Application Circuits (Continued)
No DC Blocking Capacitors Application
Logical Truth Table
INPUTS
OUTPUT
AMPLIFIER STATES
SE/ BTL
HP/ LINE
HP-IN
Mute In Shutdown
Mute Out
Input
L/R Out+ L Out-
R Out- Mode
X
----
High
----
X
----
Mute
Low
X
High
----
High
X
VDD/2
Mute
High
X
High
----
High
X
VDD/2
----
Mute
X
High
----
High
X
VDD/2
----
Mute
Low
L/R Line
BTL
Output
BTL
Output
BTL
Output
BTL
Low
High
Low
L/R HP
BTL
Output
BTL
Output
BTL
Output
BTL
High
Low
L/R Line
SE
Output
----
SE
High
Low
L/R HP
SE
Output
----
SE
X
Low
High
Low
L/R Line
SE
Output
VDD/2
----
HP-IN
X
High
Low
L/R HP
SE
Output
VDD/2
----
HP-IN
GND/HS
VOL
ROUT+
RLINEIN
RHPIN
LVDD
RVDD
HP-IN
HP/LINE
ROUT-
SE/BTL
GND/HS
PHONOJACK
CFL
RFL
AUDIO SOURCE
CIL
RIL
GND/HS
TJ
LOUT+
LLINEIN
RIR
LHPIN
LBYPASS
RBYPASS
SHUTDWON
MUTE OUT
LOUT-
MUTE IN
GND/HS
CIR
AUDIO SOURCE
RFR
CFR
3
1
2
4
5
G1421
1
24
2
23
322
4
21
12
13
14
11
10
15
17
916
8
18
7
20
5
6
19
CBL
RC
4.7
Ω
CC
0.1F
RC
4.7
Ω
CC
0.1F
1F
10K
Ω
20K
Ω
4.7F
10K
Ω
1F
20K
Ω
4.7F
GND/HS
VOL
ROUT+
RLINEIN
RHPIN
LVDD
RVDD
HP-IN
HP/LINE
ROUT-
SE/BTL
GND/HS
PHONOJACK
CFL
RFL
AUDIO SOURCE
CIL
RIL
GND/HS
TJ
LOUT+
LLINEIN
RIR
LHPIN
LBYPASS
RBYPASS
SHUTDWON
MUTE OUT
LOUT-
MUTE IN
GND/HS
CIR
AUDIO SOURCE
RFR
CFR
3
1
2
4
5
G1421
1
24
2
23
322
4
21
12
13
14
11
10
15
17
916
8
18
7
20
5
6
19
CBL
RC
4.7
Ω
CC
0.1F
RC
4.7
Ω
CC
0.1F
1F
10K
Ω
20K
Ω
4.7F
10K
Ω
1F
20K
Ω
4.7F
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