Connectors

Connectors

AUDIO OUT

This port is used to output signals from audio frequency generators 1 and 2.

Operating Considerations

The output level is set by the AF generators and is not affected by the front-panel VOLUME control.

Output impedance <1 Ω

Maximum output current = 20 mA peak

Maximum reverse voltage = 12 V peak

AC/DC coupling is selected using the Audio Out field. This field is available on the RF GENERATOR screen.

BASEBAND OUT (I and Q)

These outputs provide buffered versions of the I and Q drive signals.

Operating Considerations

The I and Q drive signals are balanced by DACs that provide the correct dc offset for the I/Q modulator.

Output impedance = 50 Ω

Nominal output level = 250 mV (open circuit)

Frequency = approximately 600 kHz

Chassis Ground

The chassis ground terminal provides a general chassis connection.

CHIP CLOCK 1.2288 MHz OUT

This output provides a 1.2288 MHz (CDMA chip rate) square wave with a 50% duty cycle. This signal comes from the CDMA frame clocks.

Operating Considerations

Nominal output level = TTL

Output impedance = 50 Ω

Chapter 9

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Agilent Technologies 8935 series e6380a manual Audio OUT