参数资料
型号: TSH512CFT
厂商: STMICROELECTRONICS
元件分类: 消费家电
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封装: 10 X 10 MM, ROHS COMPLIANT, TQFP-44
文件页数: 9/31页
文件大小: 1350K
代理商: TSH512CFT
TSH512
Application information
Doc ID 8120 Rev 7
17/31
Figure 24.
Headset-side block diagram
4.3.2
Computer side
In multimedia applications, the TSH512 transmits the hi-fi stereo from the PC to the
headset.
Figure 25.
Computer-side block diagram
TSH512
LNA + ALC
MIC. BIAS
TX2
TX1
VOX
SBY
buffer1
buffer2
photodiode
Vcc
LED
Vcc
Audio
amp2
SBY
1
SBY
2
LNA
2.3 MHz
Band-pass
TSH511
HiFi stereo from the PC:
2 x 20 mW /16
Ω
1.7 MHz
Band-pass
Voice transmitted to the PC
Microphone Tx:
1.7 MHz
carrier
Stereo Rx:
2.3 & 2.8 MHz
filter
1.7 MHz
reject
2.8 MHz
Band-pass
TSH511 & 512 supply:
2.3 to 5.5V, 25 mA
Audio
amp1
filter
RX2
RX1
SQ
U
E
L
C
H
1.7 MHz
reject
filter
Vcc
-
HiFi
-
Microphone Tx:
1.7 MHz
carrier
Stereo Rx:
2.3 & 2.8 MHz
filter
-pass
:
filter
SQ
U
E
L
C
H
filter
LNA + ALC
SBY
buffer1
buffer2
LED
photodiode
TSH511 & 512 supply:
2.3 to 5.5V, 24 mA
TSH512
Audio
amp1
Audio
amp2
SBY
1
SBY
2
SQ
U
E
L
C
H
SQ
U
E
L
C
H
LNA
RX2
RX1
filter
TSH511
Vcc
1.7 MHz
Band-pass
HiFi stereo Tx:
2.3 & 2.8 MHz
mono Rx:
1.7 MHz
Voice from the headset microphone
HiFi stereo
VOX
TX2
TX1
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