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DS26303GN-120 Datasheet(PDF) 11 Page - Maxim Integrated Products |
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DS26303GN-120 Datasheet(HTML) 11 Page - Maxim Integrated Products |
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11 / 97 page  DS26303: 3.3V, T1/E1/J1, Short-Haul, Octal Line Interface Unit 11 of 97 4 PIN DESCRIPTION Table 4-1. Pin Descriptions PIN NAME eLQFP PBGA TYPE FUNCTION ANALOG TRANSMIT AND RECEIVE TTIP1 45 N5 TTIP2 52 L5 TTIP3 57 L10 TTIP4 64 N10 TTIP5 117 B10 TTIP6 124 D10 TTIP7 129 D5 TTIP8 136 B5 Analog Output Transmit Bipolar Tip for Channel 1 to 8. These pins are differential line-driver tip outputs. These pins can be high impedance if pin OE is low. If the corresponding clock TCLKn is low for 64 MCLKs, where n is 1 to 8 for the eight transmitters. This puts the corresponding transmitter in a power-down mode. When 1 is set in the OEB.OEB bit, the associated pin is high impedance. The differential outputs of TTIPn and TRINGn can provide internal matched impedance for E1 75 W, E1 120W, T1 100W, or J1 110W. TRING1 46 P5 TRING2 51 M5 TRING3 58 M10 TRING4 63 P10 TRING5 118 A10 TRING6 123 C10 TRING7 130 C5 TRING8 135 A5 Analog Output Transmit Bipolar Ring for Channel 1 to 8. These pins are differential line-driver ring outputs. These pins can be high impedance if pin OE is low. If the corresponding clock TCLKn is low for 64 MCLKs, where n is 1 to 8 for the eight transmitters. This puts the corresponding transmitter in a power-down mode. When 1 is set in the OEB.OEB bit, the associated pin is high impedance. The differential outputs of TTIPn and TRINGn can provide internal matched impedance for E1 75 W, E1 120W, T1 100W, or J1 110W. RTIP1 48 P7 RTIP2 55 M7 RTIP3 60 M8 RTIP4 67 P8 RTIP5 120 A8 RTIP6 127 C8 RTIP7 132 C7 RTIP8 139 A7 Analog Input Receive Bipolar Tip for Channel 1 to 8. Receive analog input for differential receiver. Data and clock are recovered and output at RPOS/RNEG and RCLK pins, respectively. The differential inputs of RTIPn and RRINGn can provide internal matched impedance for E1 75 W, E1 120W, T1 100W, or J1 110W. RRING1 49 N7 RRING2 54 L7 RRING3 61 L8 RRING4 66 N8 RRING5 121 B8 RRING6 126 D8 RRING7 133 D7 RRING8 138 B7 Analog Input Receive Bipolar Ring for Channel 1 to 8. Receive analog input for differential receiver. Data and clock are recovered and output at RPOS/RNEG and RCLK pins, respectively. The differential inputs of RTIPn and RRINGn can provide internal matched impedance for E1 75 W, E1 120W, T1 100W, or J1 110W. |
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