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DS26324GN Datasheet(PDF) 10 Page - Maxim Integrated Products |
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DS26324GN Datasheet(HTML) 10 Page - Maxim Integrated Products |
10 / 120 page DS26324 3.3V, 16-Channel, E1/T1/J1 Short-Haul Line Interface Unit 10 of 120 4 PIN DESCRIPTION Table 4-1. Pin Descriptions NAME PIN TYPE FUNCTION ANALOG TRANSMIT AND RECEIVE TTIP1 E1 Analog output Transmit Bipolar Tip for Channels 1–16. These pins are differential line driver tip outputs. These pins can be high impedance if pin OE is low. When “1” is set in the Output Enable Register OE bit, the associated TTIPn pin will be enabled when the OE pin is high. The differential outputs of TTIPn and TRINGn can provide internal matched impedance for E1 75 Ω, E1 120Ω, T1 100Ω, or J1 110Ω. If the TCLK input for a given LIU is held low for 64 MCLKs, that LIU’s transmitter is powered down and the TTIP/TRING outputs are high impedance. TTIP2 F1 TTIP3 K1 TTIP4 L1 TTIP5 T5 TTIP6 T6 TTIP7 T10 TTIP8 T11 TTIP9 M16 TTIP10 L16 TTIP11 G16 TTIP12 F16 TTIP13 A12 TTIP14 A11 TTIP15 A7 TTIP16 A6 TRING1 E2 Analog output Transmit Bipolar Ring for Channels 1–16. These pins are differential line driver ring outputs. These pins can be high impedance if pin OE is low. When “1” is set in the Output Enable Register OE bit, the associated TRINGn pin will be enabled when the OE pin is high. The differential outputs of TTIPn and TRINGn can provide internal matched impedance for E1 75 Ω, E1 120Ω, T1 100Ω, or J1 110Ω. If the TCLK input for a given LIU is held low for 64 MCLKs, that LIU’s transmitter is powered down and the TTIP/TRING outputs are high impedance. TRING2 F2 TRING3 K2 TRING4 L2 TRING5 R5 TRING6 R6 TRING7 R10 TRING8 R11 TRING9 M15 TRING10 L15 TRING11 G15 TRING12 F15 TRING13 B12 TRING14 B11 TRING15 B7 TRING16 B6 RTIP1 A1 Analog input Receive Bipolar Tip for Channels 1–16. 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 impedance matching with external resistance for E1 75 Ω, E1 120Ω, T1 100Ω, or J1 110Ω. RTIP2 C1 RTIP3 H1 RTIP4 N1 RTIP5 T1 RTIP6 T3 RTIP7 T8 RTIP8 T13 RTIP9 T16 RTIP10 P16 RTIP11 J16 RTIP12 D16 RTIP13 A16 RTIP14 A14 RTIP15 A9 RTIP16 A4 |
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