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參數(shù)資料
| 型號： | HWD2111 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Dual 105mW Headphone Amplifier with Digital Volume Control and Shutdown Mode |
| 中文描述： | 雙105mW耳機放大器，具有數(shù)字音量控制和關(guān)斷模式 |
| 文件頁數(shù)： | 4/19頁 |
| 文件大小： | 1038K |
| 代理商： | HWD2111 |
Electrical Characteristics
(Notes 1, 8)
The following specifications apply for V
DD
= 3.3V unless otherwise specified, limits apply to T
A
= 25C.
Symbol
Parameter
Conditions
HWD
21
11
Units
(Limits)
Typical
(Note 4)
1.1
0.3
4.0
Limit
(Note 5)
I
DD
I
SD
V
OS
P
o
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
V
IN
= 0V, I
O
= 0A
V
IN
= 0V
V
IN
= 0V
0.1% THD+N; f = 1kHz
R
L
= 16
R
L
= 32
P
O
= 25mW, R
L
= 32
f = 20Hz to 20kHz
C
B
= 1.0μF, V
RIPPLE
= 100mV
PP
f = 217Hz
mA
μA
mV
40
28
0.5
mW
mW
%
THD+N
Total Harmonic Distortion
PSRR
Power Supply Rejection Ratio
60
dB
V
IH
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
Digital Volume Range
1.4
V (min)
V
IL
0.4
V (max)
Input referred minimum gain
Input referred maximum gain
All 16 discrete steps
All 16 discrete steps
All gain settings from
33dB to +12dB
Shutdown mode active
33
+12
3.0
±
0.3
0.15
dB
dB
dB
dB
dB
Digital Volume Stepsize
Stepsize Error
ChanneltoChannel Volume
Tracking Error
Shutdown Attenuation
100
dB
Electrical Characteristics
(Notes 1, 8)
The following specifications apply for V
DD
= 2.6V unless otherwise specified, limits apply to T
A
= 25C.
Symbol
Parameter
Conditions
HWD
21
11
Units
(Limits)
Typical
(Note 4)
1.0
0.3
4.0
Limit
(Note 5)
I
DD
I
SD
V
OS
P
o
Supply Current
Shutdown Current
Output Offset Voltage
Output Power
V
IN
= 0V, I
O
= 0A
V
IN
= 0V
V
IN
= 0V
0.1% THD+N; f = 1kHz
R
L
= 16
R
L
= 32
P
O
= 15mW, R
L
= 32
f = 20Hz to 20kHz
C
B
= 1.0μF, V
RIPPLE
= 100mV
PP
f = 217Hz
mA
μA
mV
20
16
0.6
mW
mW
%
THD+N
Total Harmonic Distortion
PSRR
Power Supply Rejection Ratio
60
dB
V
IH
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage High
(CLOCK, UP/DN, SHUTDOWN)
Input Voltage Low
Digital Volume Range
1.4
V (min)
V
IL
0.4
V (max)
Input referred minimum gain
Input referred maximum gain
All 16 discrete steps
All 16 discrete steps
All gain settings from
33dB to +12dB
33
+12
3.0
±
0.3
0.15
dB
dB
dB
dB
dB
Digital Volume Stepsize
Stepsize Error
ChanneltoChannel Volume
Tracking Error
4
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