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Leader LE1876 Digital Processing Jitter Meter

BH #LELE1876 • MFR #LE1876
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Leader LE1876 Digital Processing Jitter Meter
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Leader LE1876 Overview

The LE1876 Digital Processing Jitter Meter from Leader is a device designed to measure the jitter conforming to Blu-Ray disc standards. It combines time interval analyzer TIA and digital processing methods for jitter measurement, enabling both accurate readings and high throughput. Use this unit to adjust and inspect optical pickups on productions lines.

Standard features include a limit equalizer applicable to x2 speed blu-ray disc standards, PLL clock regenerator, and jitter measurement sections. These features allow the x2 speed of HF signal output from a pickup to be directly applied to this instrument for measuring jitter.

A large LCD panel displays jitter and provides histogram analysis, making this unit equally well suited for production, inspection, and research & development. Jitter measurement units for a DVD/CD or HFM are optionally available. Also optionally available are GPIB and LAN interfaces for constructing an automatic measurement system for quality-control checks.

Jitter Meter for Blu-Ray
This device is designed to measure the jitter conforming to Blu-Ray disc standards.
Accurate Readings & High Throughput
It combines time interval analyzer TIA and digital processing methods for jitter measurement, enabling both accurate readings and high throughput.
Standard Features
Standard features include a limit equalizer applicable to x2 speed blu-ray disc standards, PLL clock regenerator, and jitter measurement sections.
Production, Inspection, Research & Development
A large LCD panel displays jitter and provides histogram analysis, making this unit equally well suited for production, inspection, and research & development.
Optional Functionality
Jitter measurement units for a DVD/CD or HFM are optionally available. Also optionally available are GPIB and LAN interfaces for constructing an automatic measurement system for quality-control checks.

Leader LE1876 Specs

Input
Input Coupling: AC
Measurement Voltage Range: 0.1 to 2.0 V p-p
Input Range: 3 ranges
0.3 V range: 0.1 to 0.3 V p-p
0.9 V range: 0.3 to 0.9 V p-p
2.0 V range: 0.9 to 2.0 V p-p
Input Impedance: 50 ohms
Auto Slicer: AUTO (Response time constant x1 speed: 10 kHz, x2 speed 20 kHz)
Maximum Input Voltage: ± 2.5 V
Measurement Control: ARMING IN/INHIBIT IN
Input Impedance: 10k ohms
Input Signal Level: 0/+5 V
Maximum Input Voltage: -0.7 V/+5.7 V
Output
MONITOR OUT
Output Impedance: 50 ohms
Output Amplitude: Up to 2.0 Vp-p ±30 %
(into 50 ohms, in proportion to input signal)
Output Connector: BNC

EQUALIZER OUT
Output Impedance: 50 ohms
Output Amplitude: 0.8 Vp-p ±30 % (into 50 ohms)
Output Connector: BNC

DIGITAL OUT (DATA, CLOCK)
Outputs: binary DATA signal and CLOCK signal regenerated by PLL.
Output Signal: DATA signal, CLOCK signal
Output Amplitude: 0.15 Vp-p (into 50 ohms)
Output Offset Voltage: 0.34 V (into 50 ohms)
Output Connector: BNC

DC OUT
Output Accuracy: ±2 %
Output Item: Jitter (full scale voltage variable)
Maximum Input Voltage: 2 V

GATE MONITOR
Output Amplitude: TTL level
Output Impedance: 1k ohms

Equalizer
Applicable format: 1-7 PP modulation
Channel Bit Rate: 66 MHz
Equalizer Mode: Conventional Equalizer Mode or Limit
Equalizer Mode: Selectable Conventional Equalizer
Gain Variable Range: 0 to 8 dB (36 steps)
Gain Accuracy: ±0.5 dB
Group Delay Deviation: 2.0 nsp-p (5.8 dB: 6 MHz to 33 MHz)
Jitter
Applicable Speed:
HF: Clock frequency
x1 speed: 66 MHz ±4 %
x2 speed: 132 MHz ±4 %
Measurement Mode:
DATA to CLOCK, PERIOD mode, sum of
all-T data in PERIOD mode, PULSE
WIDTH mode, sum of all-T data in
PULSE WIDTH mode
Measurement Resolution:
12.5 ps
Display Resolution:
max. min: 12.5 ps min.
AVERAGE 10 ps min.
T 0.01% min.
Measurement Accuracy Sigma Value: ± 5%
Polarity Section:
DATA
CLOCK
Measurement Item:
AVERAGE, max, min, T, T max, T min.
Unit Displayed: ns,%
Measurement Results Display:
Numeric value, bar graph, histogram,
TIME DEVIATION, BOTH for separate display
Number of Samples: 1,000,000 max.
Measurement
Measurement Control Mode: ARMING mode/INHIBIT mode
Input Impedance: 10k ohms
Input Signal Level: 0/+5 V
Maximum Input Voltage: -0.7 V/+5.7 V

INHIBIT
ENABLE: HIGH/LOW
COUNT: 0 to 50, in 1 steps

ARMING
SLOPE: RISE/FALL
COUNT: 0 to 50, in 1 steps
START DLY: 0 to 99.99 ms (in 0.01 steps)
LENGTH MODE: SAMPLE/TIME
LENGTH: 0.01 to 99.99 ms (in 0.01 steps min.), (TIME only)

Clock
Clock Regenerator (DATA to CLOCK mode only)
Regenerates reference clock signal from DATA signal input.
HF: x1 speed: 66 MHz ±8 %
x2 speed: 132 MHz ±8 %

Clock Frequency Measurement Section (DATA to CLOCK mode only)
HF: x1 speed: 60.72 MHz to 71.28 MHz
x2 speed: 121.44 MHz to 142.56 MHz
Measurement Accuracy: ±0.1 %

Control
RS-232C Interface
Power
90-250VAC, 50/60 Hz
Maximum 55W, 80VA maximum
Dimensions
8-3/8 x 5-1/4 x 11-13/16" (213 x 132 x 300 mm)
Weight
8.8 lbs (4.0kg)

Leader LE1876 Reviews

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