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參數(shù)資料
| 型號(hào)： | TA2123AF |
| 廠商： | Toshiba Corporation |
| 英文描述： | 1.5V Stereo Headphone Amplifier |
| 中文描述： | 1.5V的立體聲耳機(jī)放大器 |
| 文件頁(yè)數(shù)： | 16/20頁(yè) |
| 文件大?。?/td> | 427K |
| 代理商： | TA2123AF |
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TA2123AF
2002-10-30
16
Characteristic
Symbol
Test
Cir
cuit
Test Condition
Min.
Typ.
Max.
Unit
Voltage gain 1
G
V1
—
—
24
—
Channel balance
CB
—
V
o
= 22dBV
1.5
0
+1.5
Voltage gain 2
G
V2
—
V
in (A)
= V
in (B)
= V
in (C)
V
o
= 22dBV
28
30
32
dB
Output power
P
o
—
V
CC
= 1.5V
THD (A) = THD (B) = 10%
3
6
—
mW
Total harmonic
distortion
THD
—
P
o
= 1mW
—
0.1
0.8
%
Output noise voltage
V
no
—
Rg = 600
, SW2: b
BPF = 20Hz~20kHz
—
40
80
μV
rms
Cross talk
CT3
—
V
o
= 22dBV
34
43
—
Ripple rejection ratio
RR2
—
V
CC
= 1V, f
r
= 100Hz
V
r
= 32dBV, BPF = 100Hz
—
70
—
Power amplifier muting
attenuation
ATT2
—
V
o
= 22dBV
SW5: a
→
b
—
72
—
dB
P
Beep signal input
sensitivity
SEN
—
V
o
= 62dBV, SW5: OPEN
0.7
1.3
2.2
μA
p p
Voltage gain 3
G
V3
—
f = 40Hz, V
in
= 64dBV
SW7: Open
Monitor: C AMP. GND
41
44
47
Voltage gain 4
G
V4
—
f = 40Hz, V
in
= 47dBV
SW7: Open
Monitor: C AMP. GND
27.5
30.5
33.5
dB
Maximum output
voltage
V
om2
—
f = 40Hz, THD = 1%
SW3: b, SW7: Open
—
86
—
mV
rms
Muting attenuation
ATT3
—
f = 40Hz, V
o
= 32dBV
SW7: Open
→
on
—
53
—
dB
B
Equalizer on resistance
R2
—
I
L
= 100μA, SW7: Open
—
1.9
—
k
Ripple filter output voltage
V
RF OUT
—
V
CC
= 1V, I
RF
= 20mA
0.89
0.92
—
V
Ripple filter ripple rejection
ratio
RR3
—
V
CC
= 1V, I
RF
= 20mA
BPF = 100Hz, f
r
= 100Hz
V
r
= 32dBV
35
42
—
dB
Power amplifier on current
I
41
—
5
—
—
μA
Power amplifier off voltage
V
41
—
0
—
0.3
V
Power on curent
I
42
—
5
—
—
μA
Power off voltage
V
42
—
0
—
0.3
V
Boost on voltage
V
43 (ON)
—
0.8
—
0.95
V
Boost off voltage
V
43 (OFF)
—
V
CC
= 0.95V
0
—
0.3
V
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