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參數(shù)資料
| 型號： | TA2123AF |
| 廠商： | Toshiba Corporation |
| 英文描述： | 1.5V Stereo Headphone Amplifier |
| 中文描述： | 1.5V的立體聲耳機放大器 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 427K |
| 代理商： | TA2123AF |
TA2123AF
2002-10-30
3
Terminal Explanation
(terminal voltage: Typical terminal voltage at no signal with test circuit, V
CC
= 1.3V,
Ta = 25°C)
Terminal
No.
Name
Function
Internal Circuit
Terminal
Voltage
(V)
1
IN
A F
2
IN
B F
4
IN
B R
5
IN
A R
Input of preamplifier
F / R SW (pin 44)
“L” level: Pin 1 / 2
“H” level: Pin 4 / 5
Refer to application note 3 (2)
0.73
6
PRE NF
A
11
PRE NF
B
NF of preamplifier
1
6
5
FWD
VREF OUT
REV
5pF
10pF
5pF10pF
500
500
FWD
REV
0.7
3
V
REF OUT
Output of reference circuit
48
V
REF IN
Input of reference circuit
48
3
+
+
0.73
7
PRE OUT
A
10
PRE OUT
B
Output of preamplifier
7
0.44
8
MTL DRV
A
9
MTL DRV
B
Metal driver terminal
On resistance: 90
(typ.)
8
—
12
AMS IN
Input of mixer amplifier for AMS
signal
0.7
14
AMS MIX
Output of mixer amplifier for AMS
signal
14
12
V
REF OUT
0.7
13
AMS SW
AMS sensitivity changeover switch
(this switch synchronizes with the
MT SW)
13
V
REF OUT
MT SW ON : CURRENT SOURCE
→
ON
MT SW OFF : CURRENT SOURCE
→
OFF
—
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