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AZV99NG Arkusz danych(PDF) 4 Page - Arizona Microtek, Inc |
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AZV99NG Arkusz danych(HTML) 4 Page - Arizona Microtek, Inc |
4 / 14 page Arizona Microtek, Inc. AZV99 PECL/LVDS Oscillator Gain Stage & Buffer with Selectable Enable www.azmicrotek.com +1-480-962-5881 4 Request a Sample May 2012, Rev 2.0 ENGINEERING NOTES FUNCTIONALITY MLP16 PACKAGE (AZV99L) The AZV99L provides a selectable enable (EN). Enable polarity and threshold can be selected to accommodate either CMOS/TTL or PECL input levels. If enable pull-up is desired in the CMOS/TTL mode, an external ≤ 20kΩ resistor connecting EN to VCC will override the on-chip pull-down resistor. Outputs Q/Q ¯ each have a selectable on-chip pull-down current source. External resistors may also be used to increase pull-down current to a maximum of 25mA (includes internal on-chip current source). The AZV99 also provides input biasing which is accomplished with a VBB and 470Ω internal resistors from D to VBB and D ¯ to VBB. The VBB pin supports 1.5mA sink/source current. VBB should be bypassed to ground with a 0.01µF capacitor. FUNCTIONALITY MLP8 PACKAGE (AZV99NB & AZV99ND) The AZV99NB and AZV99NB provide a PECL/ECL level enable input (EN ¯¯¯). When the EN ¯¯¯ input is LOW, the Q ¯ and QHG/Q ¯HG outputs pass data from the inputs. When EN ¯¯¯ is HIGH, the Q ¯ output continues to pass data while the QHG output is forced high and the Q ¯ HG output is forced low. Only the Q ¯ output operates with a current source (4 mA) to VEE. This is accomplished by internal bonding of CS-SEL. An external resistor may also be used to increase pull-down current to a maximum of 25mA (includes 4mA on-chip current source). The AZV99NB and AZV99ND versions operate with a single ended data input (D). The D ¯ input is internally bonded directly to the VBB pin bypassing the 470Ω bias resistor. FUNCTIONALITY MLP8 PACKAGE (AZV99N) & MSOP8 PACKAGE (AZV99T) The AZV99N and AZV99T provide a CMOS/TTL level enable input (EN). When the EN input is HIGH, the Q ¯ and QHG/Q ¯ HG outputs pass data from the inputs. When EN is LOW, the Q ¯ output continues to pass data while the QHG output is forced high and the Q ¯ HG output is forced low. Only the Q ¯ output operates with a current source (4 mA) to VEE. This is accomplished by internal bonding of CS-SEL. An external resistor may also be used to increase pull-down current to a maximum of 25mA (includes 4mA on-chip current source). The MSOP8 (T) and MLP8 (N) AZV99 operate with a single ended data input (D). The D ¯ input is internally bonded directly to the VBB pin bypassing the 470Ω bias resistor. |
Podobny numer części - AZV99NG |
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Podobny opis - AZV99NG |
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