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M21428 Datasheet(PDF) 9 Page - M/A-COM Technology Solutions, Inc. |
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M21428 Datasheet(HTML) 9 Page - M/A-COM Technology Solutions, Inc. |
9 / 21 page Functional Description 214x8-DSH-001-E Mindspeed Technologies ® 9 Mindspeed Proprietary and Confidential 1.2.3 M21418/M21428 Pin List Table 1-2. Interface Pins Pin Name Pin # Function Default Type RSET 5 Input control signal for setting the single-ended output swing amplitude. Higher output swing levels or reduced variations with a ±1% tolerance external resistor. For 800mVp–p single-ended, a 750 Ω ±1% resistor to AVDD is recommended. — Analog Input Table 1-3. Power Pins Pin Name Pin # Function Type AVSS 3, 8, 15 Chip Ground Power AVDD 2, 7 Positive Supply Power NC 4 Not Connected. Leave these pins floating. Do not connect to any supply, ground or logic level. NC Table 1-4. High-speed Signal Pins Pin Name Pin # Function Default Type DDI/DDI 16, 1 Non-inverting and Inverting serial externally terminated inputs. — I—High-speed SDO2/SDO2 11, 10 Non-inverting and inverting serial unterminated data outputs to coaxial cable. — O—High-speed SDO1/SDO1 13, 12 Non-inverting and inverting serial unterminated data outputs to coaxial cable. — O—High-speed Table 1-5. Control Pins Pin Name Pin # Function Default Type MUTE2 6 A high mutes SDO2/SDO2 outputs, low enables SDO2/SDO2. Pull-up I—CMOS MUTE1 14 A high mutes SDO1/SDO1 outputs, low enables SDO1, SDO1. Pull-down I—CMOS SD/HD 9 Input control signal to change the output slew rate. SD/HD = High: Slow output slew rate for SD-SDI rate (143–540 Mbps). SD/HD = Low: Fast output slew rate for HD and 3G-SDI rate. Pull-up I—CMOS NOTES: Internal pull-ups/pull-downs are 100 k Ω. |
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