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LM15851 Datasheet(PDF) 5 Page - Texas Instruments |
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LM15851 Datasheet(HTML) 5 Page - Texas Instruments |
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5 / 87 page  VA19 GND GND 50 50 VA19 GND VA19 VD12 GND + ± 50 50 VA19 LM15851 www.ti.com SLAS990D – JANUARY 2014 – REVISED JULY 2015 Pin Functions (continued) PIN EQUIVALENT CIRCUIT TYPE DESCRIPTION NAME NO. DATA DS0 − 32 DS0+ 33 DS1– 35 DS1+ 36 Data DS2– 38 CML These pins are the high-speed serialized-data outputs with user-configurable O pre-emphasis. These outputs must always be terminated with a 100- Ω differential DS2+ 39 resistor at the receiver. DS3– 41 DS3+ 42 DS4– 44 DS4+ 45 GROUND, RESERVED, DNC Do Not Connect DNC 67 — Do not connect DNC to any circuitry, power, or ground signals. Reserved Connect to Ground or Leave Unconnected: This reserved pin is a logic input for RSV 66 — possible future device versions. It is recommended to connect this pin to ground. Floating this pin is also permissible. Reserved RSV2 61 — Connect to Ground Connect this reserved input pin to ground for proper operation. Ground (GND) The exposed pad on the bottom of the package is the ground return for all supplies. This pad must be connected with multiple vias to the printed circuit board (PCB) Thermal Pad — ground planes to ensure proper electrical and thermal performance. The exposed center pad on the bottom of the package must be thermally and electrically connected (soldered) to a ground plane to ensure rated performance. LVCMOS 47, NCO_0 48 50, NCO_1 51 NCO ConfigSelect These three pin pairs allow the host device to select the specific NCO frequency or I phase accumulator that is active. Each pair must be connected together and driven with a common 1.8-V LVCMOS signal. Connect these inputs to GND if they are not used in the application. 53, NCO_2 54 OR_T0 25 Over-Range O Over-range detection status for T0 and T1 thresholds. Leave these pins OR_T1 26 unconnected if they are not used in the application. Copyright © 2014–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM15851 |
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Similar Description - LM15851_15 |
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