| | 53210A | 53220A | 53230A |
| Input Channel Characteristics |
| Input characteristics (nom) |
| 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 Ω 1 or 1 MΩ | 10 Hz - 350 MHz |
| Input |
| Connector | Front panel BNC(f). Option 201 adds parallel rear panel BNC(f) inputs 2 |
| Input impedance (typ) | Selectable 1 MO ± 1.5% or 50 O ± 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 |
| Sensitivity¾ (typ) | DC - 100 MHz: 20 mVpk
> 100 MHz: 40 mVpk |
| Noise³ | DC - 100 MHz: 20 mVpk
> 100 MHz: 40 mVpk |
| Input event thresholds |
| Threshold levels | ±5 V (±50 V) in 2.5 mV (25 mV) steps |
| Noise reject | ±5 V (±50 V) in 2.5 mV (25 mV) steps |
| 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 |
| 1M 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) |
| Optional microwave inputs (nom) |
| Frequency range |
| Option 106 | 100 MHz - 6 GHz |
| Option 115 | 300 MHz - 15 GHz |
| Input |
| Connector | Front panel precision Type-N(f)
Option 203 moves the input connector to a rear panel SMA(f) |
| Input impedance (typ) | 50 Ω ± 1.5% (SWR < 2.5) |
| Input coupling | AC |
| Continuous wave amplitude range |
| Option 106 | Autoranged to +19 dBm max. (2 Vrms) |
| Option 115 | Autoranged to +13 dBm max. (1.0 Vrms) |
| Sensitivity (typ) | 6 GHz (Opt 106): -27 dBm (10 mVrms)
15 GHz (Opt 115):
< 3 GHz: -23 dBm
3 – 11 GHz: -27 dBm
> 11 GHz: -21 dBm |
| Input event thresholds |
| Level range | Auto-ranged for optimum sensitivity and bandwidth |
| AM tolerance | AM tolerance |
| Maximum input |
| Damage level | 6 GHz (Opt 106): > +27 dBm (5 Vrms)
15 GHz (Opt 115): > +19 dBm (2 Vrms) |
1. AC coupling occurs after 50 O termination.
2. When ordered with optional rear terminals, the standard/baseband channel inputs are active on both the front and rear of the
universal counter though the specifications provided only apply to the rear terminals. Performance for the front terminals with rear
terminals installed is not specified.
3. Multiply value(s) by 10 for the 50 V range.
4. Stated specification assumes Noise Reject OFF. Noise Reject ON doubles the sensitivity minimum voltage levels.
5. Assumes sine wave.
6. CW only. Assumes AM Rate > 10/gate. For Option 106, spec applies for input powers > -20 dBm; use a tolerance of 15% modulation
depth for frequencies less than 900 MHz. For Option 115, spec applies for input powers > -10 dBm. |