參數(shù)資料
型號(hào): TB2173FTG
廠商: Toshiba Corporation
英文描述: 2-Source Stereo Headphone Amplifier
中文描述: 2源立體聲耳機(jī)放大器
文件頁數(shù): 7/19頁
文件大?。?/td> 254K
代理商: TB2173FTG
TB2173FTG
2006-04-19
7
Pin No.
and Name
Function
Internal Equivalent Circuit
Pin
Voltage
(V)
24 IN
1B
25 IN
1A
Input pin 1
Input pin with G
V
=
8dB
0.6
26 IN
2B
31 IN
2A
Input pin 2
The input signal is supplied to
the power amplifier through
the electronic volume circuit
and preamplifier.
0
27 OUT
B
30 OUT
A
Volume output
IN
2
electronic volume output
0
32 GND
Logic ground
0
35 PW SW
Power switch
IC ON/OFF switch.
The switch does not,
however, control the
electronic volume circuit.
When controlling PW SW
using a port, specify "1" in a
command.
In that case, the IC operates
as follows according to the
port state:
High: IC ON
Low: IC OFF
When controlling PW SW
using a command, drive the
port high.
36 RESET
Command reset
This pin resets the bus data.
High: No reset
Low: Reset
2.1
40 V
DD
Logic power supply
2.1
to
ADD OUT
25
V
CC1
10 k
1
BIAS OUT
2
BIAS OUT
2 k
35
to
BUS
31
30
2
40
36
5
200
V
DD
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