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參數資料
型號: TSH512CF
廠商: STMICROELECTRONICS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: 10 X 10 MM, ROHS COMPLIANT, TQFP-44
文件頁數: 8/31頁
文件大小: 1350K
代理商: TSH512CF
Application information
TSH512
16/31
Doc ID 8120 Rev 7
4.2
Sub-carrier generator application: voice-operated wireless
camera
Thanks to its operating frequency, the TSH512 offers the possibility of generating usual
audio sub-carriers for video applications (Figure 23). The camera can be voice-activated
using the VOX-MUTE output of the TSH512. The TSH512 also provides bias, amplification,
ALC for the electret microphone.
Figure 23.
Typical block diagram for audio sub-carrier generator
4.3
Multimedia application
4.3.1
Headset side
The TSH512 is used in mono mode to transmit the signal of the electret condenser
microphone of the headset. The circuit is supplied by batteries and the VOX function
switches off the output stages to save energy. The usual working frequency is 1.7 MHz for
infrared mono operation.
TSH512
LNA + ALC
MIC. BIAS
TX2
VOX
SBY
buffer1
buffer2
Vcc
6 or 6.5 MHz
filter
Electret Condenser
Microphone
Miniature camera
FM 2.4 GHz
transmitter
6 or 6.5 MHz
Audio sub-carrier
Video
VOX-MUTE
Stand-By
S
Sub-carrier
Stand-By
TX1
TSH512
LNA + ALC
MIC. BIAS
TX2
VOX
SBY
buffer1
buffer2
Vcc
6 or 6.5 MHz
filter
Electret Condenser
Microphone
Miniature camera
FM 2.4 GHz
transmitter
6 or 6.5 MHz
Audio sub-carrier
Video
VOX-MUTE
Stand-By
S
Sub-carrier
Stand-By
TX1
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相關代理商/技術參數
參數描述
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TSH512CYFT 功能描述:IC IR TRANSMITTER HIFI 44LQFP RoHS:是 類別:RF/IF 和 RFID >> RF 發射器 系列:- 標準包裝:4,000 系列:- 頻率:310MHz ~ 440MHz 應用:- 調制或協議:UHF,ASK 數據傳輸率 - 最大:20 kBaud 功率 - 輸出:1dBm ~ 5dBm 電流 - 傳輸:10mA 數據接口:PCB,表面貼裝 天線連接器:PCB,表面貼裝 存儲容量:- 特點:- 電源電壓:2.2 V ~ 4 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-LSSOP(0.154",3.90mm 寬) 包裝:帶卷 (TR)
TSH60 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Wide-Band, Low-Power Operational Amplifiers with Standby
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