Agilent Technologies E8257C PSG Bedienungsanleitung PDF herunterladen (Seite 31)

Input/Output Descriptions

1. Digital inputs and outputs are 3.3 V CMOS unless indicated otherwise. Inputs will accept 5 V CMOS, 3 V CMOS, or TTL voltage levels.

Front panel connectors (all connectors are BNC female unless otherwise noted.)

RF output Output impedance 50 Ω (nom)

Option 520 and 521 Precision APC-3.5 male, or Type-N female with Option 1ED

Caution: Option 521 output power > 1 Watt

Options 532, 540, and 550 Precision 2.4 mm male; plus 2.4 – 2.4 mm and 2.4 – 2.9 mm female adapters

Option 567 Precision 1.85 mm male; plus 1.85 – 1.85 mm and 2.4 – 2.9 mm female adapters

ALC input Used for negative external detector leveling. Nominal input impedance 120 kΩ, damage level ±15 V.

LF output Outputs the internally generated LF source. Nominal output impedance 50 Ω.

External input 1 Drives either AM, FM, or ΦM. Nominal input impedance 50 or 600 Ω, damage levels are 5 V

rms

and 10 V

peak

External input 2 Drives either AM, FM, or ΦM. Nominal input impedance 50 or 600 Ω, damage levels are 5 V

rms

and 10 V

peak

Pulse/trigger gate input Accepts input signal for external fast pulse modulation. Also accepts external trigger pulse input for internal

pulse modulation. Nominal impedance 50 Ω. Damage levels are 5 V

rms

and 10 V

peak

Pulse video out Outputs a signal that follows the RF output in all pulse modes. TTL-level compatible, nominal source

impedance 50 Ω.

Pulse sync out Outputs a synchronizing pulse, nominally 50 ns width, during internal and triggered pulse modulation. TTL-level

compatible, nominal source impedance 50 Ω.

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Agilent Technologies E8257C PSG Bedienungsanleitung Seite 31