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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)： | 15/20頁(yè) |
| 文件大小： | 427K |
| 代理商： | TA2123AF |
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TA2123AF
2002-10-30
15
Electrical Characteristics
Unless Otherwise Specified: V
CC
= 1.3V, Ta = 25°C, f = 1kHz, SW1: b, SW2: b, SW3: a,
SW4: OPEN SW5: a, SW6: a, SW7: ON, SW8: a / b, SW9: b,
SW10: ON
Preamplifier: Normal Mode, R
g
= 2.2k
, R
L
= 10k
, SW1: a
Power Amplifier: R
g
600
, R
L
= 32
, SW2: a
Characteristic
Symbol
Test
Cir
cuit
Test Condition
Min.
Typ.
Max.
Unit
Quiescent supply current 1
I
CCQ1
—
OCL mode, PRE + PW
—
2.2
4.0
Quiescent supply current 2
I
CCQ2
—
OCL mode, PRE: OFF
SW9: a
—
1.7
3.0
Quiescent supply current 3
I
CCQ3
—
Coupling mode
PRE + PW, SW4: ON
—
1.5
2.7
Quiescent supply current 4
I
CCQ4
—
Coupling mode
PRE : OFF, SW4: ON
SW9: a
—
1.0
1.8
mA
Open loop voltage gain
G
VO
—
V
o
= 22dBV
NF resistor (150
): Short
65
80
—
Closed loop voltage gain
G
VC
—
V
o
= 22dBV
—
35
—
dB
Maximum output voltage
V
om1
—
THD = 1%
160
250
—
mV
rms
Total harmonic distortion
THD1
—
V
CC
= 1V, V
o
= 22dBV
—
0.08
0.3
%
Equivalent input noise
voltage
V
ni
—
Rg = 2.2k
BPF: 20Hz~20kHz
NAB (G
V
= 35dB, f = 1kHz)
SW1: b
—
1.7
2.7
μV
rms
Cross talk (CH A / CH B)
CT1
—
—
60
—
Cross talk
(forward / reverse)
CT2
—
V
o
= 22dBV
—
62
—
Ripple rejection ratio
RR1
—
f
r
= 100Hz, V
r
= 32dBV
BPF = 100Hz
—
54
—
Preamplifier muting
attenuation
ATT1
—
V
o
= 22dBV
SW9: b
→
a
—
84
—
dB
P
Driver on resistance
R1
—
I
L
= 100μA, SW10: OPEN
—
90
—
AMS sensitivity 1
AMS1
—
SW5: b
58.3
56.3
54.3
AMS sensitivity 2
AMS2
—
SW5: a
69.7
67.7
65.7
dBV
Forward mode on voltage
V
44
—
0
—
0.3
V
Reverse mode on current
I
44
—
5
—
—
μA
Preamplifier on voltage
V
45
—
0
—
0.3
V
Preamplifier off current
I
45
—
5
—
—
μA
Metal mode on voltage
V
46 (M)
—
0.8
—
0.95
V
Normal mode on voltage
V
46 (N)
—
V
CC
= 0.95V
0
—
0.3
V
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