- High number of measurement channels;
- High values of the functional control frequency, data reception/transmission speed, and memory capacity of the test generator;
- Support for syncing a group of modules in the AXIe-1 standard;
- PCIe×4 Gen2 management;
- Ability to work in 4 frequency domains;
- Universal and algorithmic modes of test generators;
- The multiplication for memory resources to scan mode;
Digital module P128C200M, the PIN electronics device implemented in the open standard AXIe-1.
The P128C200M module provides measurement and control of integrated circuit parameters using parametric measurement methods, as well as functional and algorithmic control. The module implements a synchronization system that ensures the operability of a group of modules when they are installed in the AXIe-1 chassis.
Parametric measurement methods are implemented on the basis of special PPMU meters that provide generation and measurement of parameters of DC electrical signals. Each channel of the module contains its own independent PPMU, which is why parallel (simultaneous) control of DC parameters is provided on all channels of the module.
For parametric measurements on the signal pins of the chips, the module provide
- formation of a programmable constant voltage value and measurement of constant voltage and DC power (FVMV, FVMI modes);
- formation of a programmable value of DC power in 5 ranges and measurement of DC voltage and DC power (FIMV, FIMI modes);
- measurement of DC voltage in the disconnected state (FNMV mode);
- limiting the DC voltage value by two independent programmable levels, in FIMI and FIMV modes;
- limitation of the DC power value, by two independent programmable levels, in each current range, in FVMV, FVMI modes
For functional monitoring and measurement of dynamic parameters on the signal pins of the chips, the module provides:
- generation by channel drivers of a vector sequence of pulse signals with programmable voltage levels (lower, middle, upper, and high-voltage levels), the steepness of the front and cutoff of the signal, and timestamps for switching between voltage levels (timestamps D0, D1, D2).
- channel Comparators monitor the state of signals in vectors by comparing the voltage levels of signals in vectors with the programmable voltage levels of Comparators at specified time points (timestamps R0, R1);
- programmable connection for signal monitoring and disconnection for dynamic active load signal generation, with programmable levels of positive current, negative current, and switching voltage;
- programmable connection during signal monitoring and disconnection during signal generation of dynamic voltage limiters on channels with programmable upper and lower voltage levels;
The listed functionality and characteristics of the device are superior to domestic analogues and are comparable to foreign products.
Number of independent measuring channels: 128 | Number of high-voltage channels: 48 |
Number of frequency domains: 4 | Maximum frequency of functional monitoring: 250 MHz |
Maximum data rate: 500 Mbit/s | Vector memory capacity per channel: 128M |
Response/error memory per channel: 128M | The maximum amount of memory vectors in scan mode: 4G |
Discreteness of setting timestamps: 5 ps | Limits of permissible absolute error of the input differential formation time (IEPA): ±125 ps |
Limits of permissible absolute error of the output differential monitoring time (OEPA): ±125 ps | Limits of permissible absolute error of the time of formation of input differences and control of output differences (OTA): ±275 ps |
PPMU features | |
Voltage generation and measurement range: -1.5 V ... +6.5 V |
Limits of permissible absolute error of voltage generation and measurement: (±(0.002*U+3) – 2.1*I) mV
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Limits of permissible absolute error of current generation and measurement:
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Limits of permissible absolute error of current limitation:
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Upper and lower limit voltage range: -1.5 V ... +6.5 V | Limits of permissible absolute error of the limiting voltage: ±(0.003*U+25) mV |
Characteristics of the driver channels | |
The range of voltage levels of the driver: -1,5 V … +6,5 V |
Limits of permissible absolute error in forming driver voltage levels: ±(0.002·U+10) mV |
Absolute value of DC power at the driver output: at least 60 mA | Nominal value and limits of permissible absolute error of the driver output resistance: (50 ± 2) Ohm |
Duration of the driver signal edge (cut-off):
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Minimum driver signal pulse duration:
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Programming the steepness of the front (cut) of the signal: from 25 % to 100 % | Driver high-voltage level range: 0 V ... +13 V |
Limits of permissible absolute error in forming the high-voltage driver voltage level: ±(0.002·U+35) mV | |
Characteristics of the Comparators of channels | |
Range of comparator voltage levels: -1.5 V ... +6.5 V | Limits of permissible absolute error in the formation of comparator voltage levels: ±(0.002·U+15) mV |
Minimum duration of the signal pulse when monitoring by comparators: no more than 0.75 ns |
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Channel active load characteristics | |
Range of incoming and outgoing active load current: 0 mA ... 20 mA | Limits of permissible absolute error in forming the incoming and outgoing current of the active load: ±(0.002·I+50) mkA |
Active load switching voltage generation range: -1.5 V ... +6.5 V | Limits of permissible absolute error of forming the switching voltage of the active load: ±(0.003·U+30) mV |
Characteristics of the voltage limiters of the channels | |
Limit voltage range: -2.2 V ... +7.2 V | Limits of permissible absolute error of limiting voltages: ±(0.003·U+30) mV |