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MT9173AP Datasheet(PDF) 2 Page - Zarlink Semiconductor Inc |
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MT9173AP Datasheet(HTML) 2 Page - Zarlink Semiconductor Inc |
2 / 28 page MT9173/74 Data Sheet 2 Zarlink Semiconductor Inc. Figure 2 - Pin Connections Pin Description Pin # Name Description 24 28 12 LOUT Line Out. Transmit Signal output (Analog). Referenced to VBias. 23 VBias Internal Bias Voltage output. Connect via 0.33 µF decoupling capacitor to VDD. 34 VRef Internal Reference Voltage output. Connect via 0.33 µF decoupling capacitor to VDD. 4,5, 6 5,7, 8 MS2-MS0 Mode Select inputs (Digital). The logic levels present on these pins select the various operating modes for a particular application. See Table 1 for the operating modes. 7 9 RegC Regulator Control output (Digital). A 512 kHz clock used for switch mode power supplies. Unused in MAS/MOD mode and should be left open circuit. 810 RxSB Receive Sync Bit output (Digital). In DN mode, this output is held high until receive synchronization occurs (i.e., until the sync bit in Status Register =1). Once low, indicating synchronized transmission, a high going pulse (6.24 µs wide pulse @ 160 kb/s and 12.5 µs wide @ 80 kb/s) indicates the temporal position of the receive "SYNC" bit in the biphase line transmission. Inactive and low in MOD mode. 911 F0/CLD Frame Pulse/C-Channel Load (Digital). In DN mode a 244 ns wide negative pulse input for the MASTER indicating the start of the active channel times of the device. Output for the SLAVE indicating the start of the active channel times of the device. Output in MOD mode providing a pulse indicating the start of the C-channel. 10 12 CDSTi/ CDi Control/Data ST-BUS In/Control/Data In (Digital). A 2.048 Mbit/s serial control & signalling input in DN mode. In MOD mode this is a continuous bit stream at the bit rate selected. 11 13 CDSTo/ CDo Control/Data ST-BUS Out/Control/Data Out (Digital). A 2.048 Mbit/s serial control & signalling output in DN mode. In MOD mode this is a continuous bit stream at the bit rate selected. 12 14 VSS Negative Power Supply (0 V). 13 15 DSTo/Do Data ST-BUS Out/Data Out (Digital). A 2.048 Mbit/s serial PCM/data output in DN mode. In MOD mode this is a continuous bit stream at the bit rate selected. 28 PIN PLCC 5 6 7 8 9 10 11 25 24 23 22 21 20 19 ² NC LOUT DIS Precan OSC1 OSC2 NC C4/TCK MS2 NC MS1 MS0 RegC F0/CLD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 24 23 22 21 20 19 18 17 24 PIN PDIP/ SSOP LOUT VBias VRef MS2 MS1 MS0 RegC F0/CLD CDSTi/CDi CDSTo/CDo VSS RxSB VDD LIN TEST LOUT DIS Precan OSC1 OSC2 C4/TCK F0o/RCK DSTi/Di DSTo/Do NC RxSB |
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