Agilent Technologies 93000 SOC Series User Manual

Lesson 1 – Analog Modules
90
Dual High Speed Sampler
The Dual High Speed Sampler (software identifier: SPA) can be
used to capture repetitive waveforms up to 1 GHz with 12-bit
resolution.
The Dual High Speed Sampler module has two identical samplers
(called sampler cores) that share the trigger/timing system and
sequencer. As shown in the following figure, the SYNC CLK pin
(which is the trigger input pin), the timing generator, and
sequencer are shared between its two sampler cores. The two
sampler cores can capture two single-ended waveforms
simultaneously with the common sampling rate, common sampling-
timing, and common sequencer program.
The one specified sampler core only can also be triggered.
Dual High Speed Sampler (SPA) Block Diagram
(Single-ended input routes shown with bold lines)
The two sampler cores in the module can capture two waveforms
with a very tight timing skew: around ±100 ps when the same
input range is used in both sampler cores. To do this, on the DUT
board, connect between the sampler input pogo pads and the DUT
output pins by using coaxial cables (or printed circuit patterns)
that have 50 ohm characteristic-impedance and the same electrical
length.
The Dual High Speed Sampler (SPA) is a single-slot analog module
installed in the testhead.
Max. Input Frequency Resolution Sampling Rate Waveform Memory
1 GHz 12 bits 8 ksps to 1 Msps 0.5 M samples (per sampler core)
Input Multiplexer
CCLK Stop Seq Start
Conversion Clock (CCLK)
Core 1
Waveform
Memory
Sequencer
50
ADC
S/H
Amp
Pogo Pin
DGND
SYNC CLK (04)
SYNC DATA (03)
AGND
(GND for SYNC CLK)
AGND
Input
Amp
Master Clock
Timing
Generator
CCLK
Offset DAC
Core 2
Waveform
Memory
ADC
A+ (16/Mode1)
B+ (14/Mode2)
50 S/H
Amp
Input
Amp
CCLK
Offset DAC
C+ (12/Mode3)
D+ (10/Mode4)

Agilent Technologies 93000 SOC Series Specifications

General

Brand	Agilent Technologies
Model	93000 SOC Series
Category	Test Equipment
Language	English