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PDSP16330MC Datasheet(PDF) 3 Page - Zarlink Semiconductor Inc |
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PDSP16330MC Datasheet(HTML) 3 Page - Zarlink Semiconductor Inc |
3 / 8 page PDSP16330 MC 3 PIN DESCRIPTIONS Symbol Pin Name and Description CLK Clock: Common Clock to device Registers. Register contents change on the rising edge of clock. Both pins must be connected. CEX Clock Enable: Clock Enable for X Port. The clock to the X port is enabled by a low level. CEY Clock Enable: Clock Enable for Y Port The clock to the Y port is enabled by a low level. X15-X0 X Data Input Data presented to this input is loaded into the device by the rising edge of CLK. X15 is the MSB Y15-Y0 Y Data Input Data presented to this input is loaded into the device by the rising edge of CLK. Y15 is the MSB M15-M0 M Data Output: Magnitude data generated by the device is output on this port. Data changes on the rising edge of CLK, M15 is the MSB. The weighting of M15 is determined by the Scale factor selected . P11-P0 P Data Output: Phase data generated by the device is output on this port. Data changes on the rising edge of CLK, P11 is the MSB. The weighting of P11 is π radians. OEM Output Enable: Output Enable for M Port. The M Port is in a high impedance state when this input is high. OEP Output Enable: Output Enable for P Port. The P Port is in a high impedance state when this input is high. FORM Format Select This input selects the format of the Cartesian Data input on the X and Y ports. This input is latched by the rising edge of CLK, and is applied at the same time as the data to which it refers. A low !evel indicates that two’s complement data is applied, a high indicates Sign-Magnitude S1-S0 Scaling Control: Control input for scaling of Magnitude Data. This input is latched by the rising edge of CLK, and determines the scaling to be applied to the Magnitude result. The Scaling is applied to the output data in the cycle following the cycle in which the control was latched. OVR Overflow: Overflow flag. This signal becomes active if the scaling currently selected causes an invalid value to be presented to the Magnitude output. Vcc +5V supply. All Vcc pins must be connected. GND 0V supply. All GND pins must be connected. 2's Complement 7FFF . . . 0001 0000 FFFF . . . 8001 Sign Magnitude 7FFF . . . 0001 . . . FFF 0000 8000 INPUT DATA RANGE |
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