LSI L64777, Technical Manual

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5-8 Signals
QAM_IN Symbol I Modulation Inverted Analog Output
QAM_IN is the corresponding inverted differential part to
QAM_I.
QAM_Q Symbol Q Modulation Analog Output
QAM_Q is the positive differential analog quadrature
output signal of the modulator.
QAM_QN Inverted Differential of QAM_Q Analog Output
QAM_QN is the corresponding inverted differential part to
QAM_Q.
VDDX_I Isolated Power: Digital-to-Analog Converter,
I Channel
For usage and value, see the LSI Logic datasheet
G10
®
-p CW900100 10-bit Direct Digital Synthesis Digital-
to-Analog Converter (September 1998).
VDDX_Q Isolated Power: Digital-to-Analalog Converter,
Q Channel
For usage and value, see the LSI Logic datasheet
G10
®
-p CW900100 10-bit Direct Digital Synthesis Digital-
to-Analog Converter (September 1998).
VREF_I Reference Voltage Input: I Analog Input
For usage and value, see the LSI Logic datasheet
G10
®
-p CW900100 10-bit Direct Digital Synthesis Digital-
to-Analog Converter (September 1998).
VREF_Q Reference Voltage Input: Q Analog Input
For usage and value, see the LSI Logic datasheet
G10
®
-p CW900100 10-bit Direct Digital Synthesis Digital-
to-Analog Converter (September 1998).
5.8 Serial Microprocessor Interface Signals
INT_n Interrupt Request Output
The L64777 asserts INT_n LOW when the interrupt is
enabled and an interrupt condition occurs. INT_n is an
open drain output that requires an external pull-up
resistor for operation.