전자부품 데이터시트 검색엔진 |
|
HDMP-1012 데이터시트(PDF) 40 Page - Agilent(Hewlett-Packard) |
|
HDMP-1012 데이터시트(HTML) 40 Page - Agilent(Hewlett-Packard) |
40 / 42 page 612 deliver ECL swings directly into 50 Ω. The output impedance is matched to 50 Ω with a VSWR of less than 2:1 to above 2 GHz. This output is ideal for driving the I- H50 input through a 50 Ω cable and a 0.1 uF coupling capacitor. The 150 Ω shunt resistor to ground improves internal DC bias of the O-BLL differential output circuit. The O-BLL driver can also be connected directly into a high speed 50 Ω oscilloscope. For optimum performance, both output should see the same impedance. It is necessary that all used O-BLL outputs be terminated into 50 Ω. Figure 23 shows various methods of interfacing O-BLL to I-H50 and standard ECL logic. TTL and Positive 5 V Operation Many applications require the I/ Os to interface to the standard TTL logic family. Such TTL/ECL translators are available in the industry from various semiconductor manufacturers. This works well, but requires two power supplies since the system is supporting two different logic families. This technique is preferred, since it is easier to keep a single clean ground plane. Although G-LINK has been designed to work with conven- tional ECL negative supply, a single positive supply can also be used. This basically replaces the traditional ground and Vee planes with the Vcc and ground planes. Also, the termination plane Vtt is shifted up to +3 V. In theory, since voltages are all relative, there should be no difference. In practice, however, the differences lie in how well the Vcc plane is bypassed to ground, since all of the I/Os are referenced to this plane. It is therefore necessary to separate any TTL or CMOS Vcc to this chip set, so that the cleanest Vcc plane can be achieved. Figure 22. I-H50 and O-BLL Simplified Circuit Schematic. ZO = 50 Ω VEE VEE 28 mA 80 80 50 150 150 50 50 12 O-BLL I-H50 HGND 0.1 µF 50 |
유사한 부품 번호 - HDMP-1012 |
|
유사한 설명 - HDMP-1012 |
|
|
링크 URL |
개인정보취급방침 |
ALLDATASHEET.CO.KR |
ALLDATASHEET 가 귀하에 도움이 되셨나요? [ DONATE ] |
Alldatasheet는? | 광고문의 | 운영자에게 연락하기 | 개인정보취급방침 | 링크교환 | 제조사별 검색 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 |