 |
поискавой системы для электроныых деталей |
|
|
поискавой системы для электроныых деталей |
|
DAC5687MPZPEP датащи(PDF) 52 Page - Texas Instruments |
|
|
|
|||||||||||||||||||||||||||||
DAC5687MPZPEP датащи(HTML) 52 Page - Texas Instruments |
|
|
52 / 75 page  www.ti.com IOUT1 IOUT2 S(1) S(1)C RLOAD RLOAD S(2) S(2)C S(N) S(N)C AVDD S0032-01 IOUT1 1:1 IOUT2 50 Ω 50 Ω RLOAD 50 Ω 100 Ω AVDD (3.3 V) AVDD (3.3 V) S0033-01 DAC5687-EP SGLS333 – JUNE 2006 Figure 57. Equivalent Analog Current Output The DAC5687 can be easily configured to drive a doubly terminated 50- Ω cable using a properly selected RF transformer. Figure 58 and Figure 59 show the 50- Ω doubly terminated transformer configuration with 1:1 and 4:1 impedance ratio, respectively. Note that the center tap of the primary input of the transformer has to be connected to AVDD to enable a dc-current flow. Applying a 20-mA full-scale output current would lead to a 0.5 VPP for a 1:1 transformer and a 1-VPP output for a 4:1 transformer. The low dc impedance between the IOUT1 or IOUT2 and the transformer center tap sets the center of the ac-signal at AVDD, so the 1-VPP output for the 4:1 transformer results in an output between AVDD + 0.5 V and AVDD – 0.5 V. Figure 58. Driving a Doubly Terminated 50- Ω Cable Using a 1:1 Impedance Ratio Transformer 52 Submit Documentation Feedback |
|
ссылки URL |
| Вашему бизинису помогли Аллдатащит? [ DONATE ] |
Что такое Аллдатащит | реклама | контакт | Конфиденциальность | Ссылка на техническое описание | обмен ссыками | поиск по производителю All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
Russian ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
