HP 81200 Data Generator/Analyzer Platform (HP E4840A, HP E4849A)

The HP 81200 provides stimulus and response capabilities in one platform. With up to 120 channels, it is freely configurable to your needs as a standalone data generator, as well as forming a platform with any combination of analyzers and generators.

With up to 1Mbit memory depth per channel and a frequency range of up to 660 MHz, the HP 81200 is the ideal tool throughout the design verification process from first turn-on, through operational check and characterization of design margins, to detailed analysis of problems or critical parts of your design. It helps you to test your design under real-world conditions and bring up your prototypes faster.

Key Features:

• 1 kbit/s to 660 Mbit/s
• Up to 1 Mbit memory per channel
• 2 to 120 RZ channels (doubles for NRZ channels up to 200 Mbit/s)
• 2 ps timing resolution, ± 50 ps edge placement accuracy
• logical EXOR addition of two or four channels
• pattern formats: NRZ, DNRZ, RZ, R1
• sequencing with 5 looping levels (nested loops)
• PRBS (up to 2^15 -1)
• variable timing parameters
• analyzer measurement modes: capture, error count, error capture from which results are shown as BER and a statelist with the failures highlighted
• intuitive Windows^® NT 4.0 based graphical user interface
• scaleable and upgradable modules and frontends

System Clock

Clock period/rate: 1.515 ns to 1 ms/1 kHz to 660 MHz. 
Note: not all front-ends are capable of 660 MHz, see frontend specifications

Resolution: 1 Hz (HP E4805A), 4 digits (HP E4831A)

Accuracy: (int ref, int ck) ±50 ppm (HP E4805A), ±100 ppm (HP E4831A)

Jitter: (int ref, int ck) 10 ps rms (5 ps typ)


Generator/Analyzer Timing 

Data rate: System clock divided by 1, 2, 4, 8, or 16

Delay: Individually in each channel. Delay, phase or % of period

Range: 0 to 3.00 µs independent of period
For f<333.334 kHz, max delay is 1 period

Resolution: 2 ps. For f < 170 kHz, 0.05% of period

Width: Individually in each channel. Can be entered as width, 
duty cycle, or trailing edge delay

Range: [Min. see frontend] to [Period - min.]
Max. 3 µs (or 1 period if f<333.33 kHz)

Duty cycle: 1% to 99% subject to width limits

Sampling rate: As generator data rate but max. rate depends on
mode and front-end

Sampling edge delay: Delay range as above. 
Inter-channel delay up to one cycle


Generator/Analyzer Frontends

Parameters              | HP E4843A                  | HP E4846A                  |
                        | 660 MHz, single channel    | 200 Mbit/s dual channel    |
-----------------------------------------------------------------------------------
Outputs/source          | Differential/both ends     | 2, single-ended/           | 
resistance              | 50 Ohm                     | outputs 50 Ohm             |
-----------------------------------------------------------------------------------
Maximum frequency and   | 600 Mbit/s (RZ, NRZ, DNRZ) | 200 Mbit/s (NRZ, DNRZ)     |
(data formats)          |                            |                            |
-----------------------------------------------------------------------------------
Output voltage window   | -2.00 to +3.00 V           | -1.75 to +3.50 V           |
                        | (doubles into open)        | (doubles into open)        |
-----------------------------------------------------------------------------------
Amplitude / Resolution  | 0.30 to 2.50 Vpp / 10 mV   | 0.30 to 3.50 Vpp / 10 mV   |
                        | (doubles into open)        | (doubles into open)        |
-----------------------------------------------------------------------------------
Transition times:       | Fixed                      | Constant slew rate         |
20-80% at ECL levels:   | <350 ps, 200 ps typ.       | <1.2 ns, 700 ps typ.       |
10-90% at 2.5 Vpp ampl: | 500 ps typ.                | <2.5 ns, 1.8 ns typ.       |
-----------------------------------------------------------------------------------
Minimum pulse width     | ECL: 600 ps typ.           | ECL: <1.5 ns, 1 ns typ.    |
                        | 2.5 Vpp: 700 ps typ.       | 2.5 Vpp: <4.0 ns, 3 ns typ.|
-----------------------------------------------------------------------------------
Channel addition        | XOR                        | XOR                        |
-----------------------------------------------------------------------------------


General Characteristics

Save/recall: pattern segments, settings and complete settings
plus segments can be saved and recalled. This is limited only by
the internal disk space.

Up/download: pattern files can be up/downloaded via a 3.5 inch
floppy disk, LAN or HP-IB.

Programming interface: IEEE 488.2 and SCPI 1992.0.

Ordering    Product Description
Number

HP E4840A   Small mainframe - holds three modules. Includes imbedded
            PC with 3.5" disk drive, hard disk and installed Window NT
            and HP E4873A software.
HP E4849A   Mainframe - holds 10 modules, nine when option 002 is installed.
            Includes HP E1401B VXI frame plus a PC module with 3.5" disk
            drive, hard disk and installed Windows NT and HP E4873A
            software.
HP E4848A   Expander Frame - holds twelve modules. Includes an HP E1401B
            VXI frame plus an HP E1482B VXI extender module and all
            cables for connecting to the mainframes HP E4805A and the
            HP E1482B modules.
HP E4805A   Central clock - clocks up to eleven HP E4841A modules and
            up to two HP E4805As. Required in all systems that include
            analyzer front-ends, and for all systems with seven or more
            HP E4841A.
HP E4831A   Clock and data generator - holds two generator front-ends,
            any mix. Clocks up to six HP E4841A modules. The HP E4841A
            is an alternative to the HP E4805A for smaller generator-only
            systems.
HP E4841A   Data Generator/Analyzer Module - holds four front-ends, any mix.
HP E4843A   660 MHz, RZ/NRZ , single channel, 2.5 Vpp.
HP E4846A   200 Mbit/s, NRZ, dual channel, 3.5 Vpp.
HP E4844A   660 MSa/s, 1 GHz bandwidth, single input, 50 Ohm.
HP E4845A   330 MSa/s, 1 GHz bandwidth, dual channel, 50 Ohm.
HP E4847A   330 MSa/s, 350 MHz bandwidth, dual input, high-Z/50 Ohm.


Please ask your local HP representative for HP 81200 Photocard with the
publication number: 5966-3222E.

HP 81200 Technical Specifications

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