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M02050 Arkusz danych(PDF) 8 Page - M/A-COM Technology Solutions, Inc. |
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M02050 Arkusz danych(HTML) 8 Page - M/A-COM Technology Solutions, Inc. |
8 / 28 page 02050-DSH-002-F Mindspeed Technologies™ 6 Mindspeed Proprietary and Confidential 2.0 Pin Definitions Table 2-1. Pin Descriptions QFN Pin# Name Function 1 GND Ground. 2VCC Power supply. Connect to either +5V or +3.3V. 3 PECLN Inverting PECL data output. 4 PECLP Non-inverting PECL data output. 5IREF Internal LOS reference current. Must be connected to ground through a 12.1 k Ω 1% resistor. 6STSET Loss of signal threshold setting input. Connect a 1% resistor between this pin and VCC3 to set loss of signal threshold. 7VCC3 Power supply input for 3.3V applications or the output of the internally regulated 3.3V voltage when VCC = 5V. Connect directly to supply for 3.3V applications (internal regulator not in use). Do not connect to power supply if VCC = 5V. 8RATESEL Rate select. When low or floating, the device is in low-rate mode (data rates ≤ 1.25 Gbps) and has reduced bandwidth. When high, the device is in full-rate mode with full bandwidth. Internal 80 k Ω resistor to ground. Drive with a current limited source as described in Section 4.1.4. 9 DINP Non-inverting data input. Internally terminated with 50 Ω to V TT (see Figure 3-2). 10 DINN Inverting data input. Internally terminated with 50 Ω to V TT (see Figure 3-2). 11 GND Ground. 12 RxAVGIN Average power monitor input. Connect to monitor output of TIAs that produce a current (sink) mirror replica of the photodiode current. Leave floating if not used. 13 JAM Output disable. When high, data outputs are disabled (with non-inverting output held high and inverting output held low). Connect to LOS output to disable outputs with loss of signal. Outputs are enabled when JAM is low or floating. Internal 150 k Ω resistor to ground. 14 LOS Loss of signal output. Goes high when input signal falls below threshold set by STSET. Open collector TTL with internal 80 k Ω pull-up resistor to V CC. 15 RSSIAVG Receiver average input power monitor. Provides a current source mirror of the current at RxAVGIN. Connect a resistor to ground to set the full scale voltage to the desired level at maximum average input power. 16 RSSIPP Receiver peak-to-peak input voltage monitor. Provides a DC voltage (ground referenced) proportional to the peak-to-peak input voltage swing. 17 Center Pad Ground to PCB for thermal dissipation. |
Podobny numer części - M02050_17 |
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Podobny opis - M02050_17 |
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