Input characteristics (nom)

53210A

53220A

53230A

Channels

Standard (DC - 350 MHz)

Ch 1

Ch 1 & Ch 2

Optional (6 or 15 GHz)

Ch 2

Ch 3

Standard inputs (nom)

Frequency range

DC coupled

DC (1 mHz) to 350 MHz (2.8 ns to 1000 sec)

AC coupled, 50 Ω1 or 1 MΩ

10 Hz - 350 MHz

Input

Connector

Input impedance (typ)

Selectable 1 MΩ ± 1.5% or 50 Ω ± 1.5% || <25 pF

Input coupling

Selectable DC or AC

Input filter

Selectable 100 kHz cut-off frequency low pass

10 Hz (AC coupling) cut-off frequency high pass filter

Amplitude range

Input range

±5 V (±50 V) full scale ranges

DC - 100 MHz: 20 mVpk

> 100 MHz: 40 mVpk

500 µVrms (max), 350 µVrms (typ)

Input event thresholds

Threshold levels

±5 V (±50 V) in 2.5 mV (25 mV) steps

Selectable On/ Off

Slope

Selectable Positive or Negative

Auto-scale

Acquires signal for current measurement channel,

selects range (5 V or 50 V), sets auto-level 50%

Auto-level

Selectable On or Off

On: Sets auto-level (% of Vpp) operation

Occurs once for each INIT or after a timeout.

Measures signal Vpp and sets Trigger level to 50%

Off: Selectable user set level (Volts)

Minimum signal frequency for

auto level

User selectable (Slow (50 Hz), Fast (10 kHz))

Minimum signal for auto level

300 mVpp

Maximum input

50 Ω damage level

1 W

50 Ω protection threshold

Will not activate below 7.5 Vpk

50 Ω internal termination auto-protects

by switching to 1 M Ω

1 M Ω damage level

DC - 5 kHz: 350 Vpk (AC + DC)

5 kHz - 100 kHz: Derate linearly to 10 Vpk (AC + DC)

>100 kHz: 10 Vpk (AC + DC)

Input Channel Characteristics

3 | Keysight | 53200A Series RF/Universal Frequency Counter/Timers - Data Sheet