LT1964 Signal Chain Evaluation Board | 200mA Low Noise Negative LDO
Analog Devices Inc.
Demonstration circuit SCP-LT1964-EVALZ is a –20V, 200mA Low Dropout (LDO) regulator designed to allow low noise operation in noise sensitive circuits. It is easily configured for a wide output range and can provide extremely quiet operation with its high PSRR.
Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely:
SCP-INPUT-EVALZ
SCP-OUTPUT-EVALZ
SCP-1X5BKOUT-EVALZ
SCP-THRUBRD-EVALZ
SCP-FILTER-EVALZ
SCP-1X2BKOUT-EVALZ
SCP-5X1-EVALZ
To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design.
Note that the Demo Manual does not cover details important to the operation and configuration regarding the LT1964. Please refer to the LT1964 data sheet for a complete description of the part.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-SCP-LT1964-EVALZ-ND | 0 | $67.39 | $67.39 | $67.39 | $67.39 | $67.39 | $67.39 | |
Analog Devices Inc | SCP-LT1964-EVALZ | 0 | $66.21 | $66.21 | $66.21 | $66.21 | $66.21 | $66.21 | |
element14 APAC | SCP-LT1964-EVALZ | 1 | 1 | * $82.32 | * $82.32 | * $82.32 | * $82.32 | * $82.32 | * $82.32 |
Farnell | SCP-LT1964-EVALZ | 2 | 1 | * $70.30 | * $70.30 | * $70.30 | * $70.30 | * $70.30 | * $70.30 |
Mouser Electronics | 584-SCP-LT1964-EVALZ | 5 | 1 | $68.87 | $68.87 | $68.87 | $68.87 | $68.87 | $68.87 |
Newark | SCP-LT1964-EVALZ | 1 | 1 | $66.73 | $66.73 | $66.73 | $66.73 | $66.73 | $66.73 |
LT8362 Signal Chain Evaluation Board | CUK Converter w/ 2A, 60V Switch
Analog Devices Inc.
Demonstration circuit SCP-LT8362-I-EVALZ features the LT8362 in a Cuk configuration. It operates with a switching frequency of 2MHz and is designed to convert a 4.5V to 42V source to –15V, with up to 1A output current (depending on input voltage).
Like all boards in the Signal Chain Power series, this board is designed to be easily plugged into other SCP boards to form a complete signal chain power system, enabling fast evaluation of low power signal chains. To evaluate this board, some universal SCP hardware is required, namely:
SCP-INPUT-EVALZ
SCP-OUTPUT-EVALZ
SCP-FILTER-EVALZ
SCP-THRUBRD-EVALZ
SCP-1X2BKOUT-EVALZ
SCP-1X5BKOUT-EVALZ
SCP-5X1-EVALZ
To properly evaluate SCP series demo boards, you will need the SCP Configurator companion software. SCP Configurator can help you choose the right board and topology for your design.
Note that the Demo Manual does not cover details important to the operation and configuration regarding the LT8362. Please refer to the LT8362 datasheet for a complete description of the part.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-SCP-LT8362-I-EVALZ-ND | 0 | $67.39 | $67.39 | $67.39 | $67.39 | $67.39 | $67.39 | |
Analog Devices Inc | SCP-LT8362-I-EVALZ | 0 | $66.21 | $66.21 | $66.21 | $66.21 | $66.21 | $66.21 | |
element14 APAC | SCP-LT8362-I-EVALZ | 2 | 1 | * $76.45 | * $76.45 | * $76.45 | * $76.45 | * $76.45 | * $76.45 |
Farnell | SCP-LT8362-I-EVALZ | 2 | 1 | * $75.94 | * $75.94 | * $75.94 | * $75.94 | * $75.94 | * $75.94 |
Mouser Electronics | 584-LT8362-I-EVALZ | 2 | 1 | $68.87 | $68.87 | $68.87 | $68.87 | $68.87 | $68.87 |
Newark | SCP-LT8362-I-EVALZ | 2 | 1 | $68.80 | $68.80 | $68.80 | $68.80 | $68.80 | $68.80 |
SSM2167Z-EVAL
Analog Devices Inc.
The SSM2167 is a complete and flexible solution for conditioning microphone inputs in personal electronics and computer audio systems. It is also excellent for improving vocal clarity in com-munications and public address systems. A low noise voltage controlled amplifier (VCA) provides a gain that is dynamically adjusted by a control loop to maintain a set compression characteristic. The compression ratio is set by a single resistor and can be varied from 1:1 to over 10:1 relative to the fixed rotation point. Signals above the rotation point are limited to prevent overload and to eliminate popping. A downward expander (noise gate) prevents amplification of background noise or hum. This results in optimized signal levels prior to digitization, thereby eliminating the need for additional gain or attenuation in the digital domain. The flexibility of setting the compression ratio and the time constant of the level detector, coupled with two values of rotation point, make the SSM2167 easy to integrate in a wide variety of microphone conditioning applications.The device is available in a 10-lead MSOP package, and is guaranteed for operation over the extended industrial temperature range of ?40?C to +85?C.ApplicationsDesktop, portable, or palmtop computersTelephone conferencingCommunication headsetsTwo-way communicationsSurveillance systemsKaraoke and DJ mixers
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-SSM2167Z-EVAL-ND | 1 | $139.47 | $139.47 | $139.47 | $139.47 | $139.47 | $139.47 | |
Analog Devices Inc | SSM2167Z-EVAL | 0 | $139.78 | $139.78 | $139.78 | $139.78 | $139.78 | $139.78 | |
Arrow North American Components | SSM2167Z-EVAL | 0 | 1 | $110.47 | $110.47 | $110.47 | $110.47 | $110.47 | $110.47 |
element14 APAC | SSM2167Z-EVAL | 4 | 1 | * $139.07 | * $139.07 | * $139.07 | * $139.07 | * $139.07 | * $139.07 |
Farnell | SSM2167Z-EVAL | 2 | 1 | * $141.25 | * $141.25 | * $141.25 | * $141.25 | * $141.25 | * $141.25 |
Mouser Electronics | 584-SSM2167Z-EVAL | 1 | 1 | $145.38 | $145.38 | $145.38 | $145.38 | $145.38 | $145.38 |
Newark | SSM2167Z-EVAL | 0 | $118.75 | $118.75 | $118.75 | $118.75 | $118.75 | $118.75 | |
Verical Marketplace | SSM2167Z-EVAL | 33 | 1 | $126.98 | $126.98 | $126.98 | $126.98 | $126.98 | $126.98 |
SSM2603-EVALZ
Analog Devices Inc.
The SSM2603 is a low power, high quality stereo audio codec for portable digital audio applications with one set of stereo programmable gain amplifier (PGA) line inputs and one monaural microphone input. It features two 24-bit analog-to-digital converter (ADC) channels and two 24-bit digital-to-analog (DAC) converter channels.The SSM2603 can operate as a master or a slave. It supports various master clock frequencies, including 12 MHz or 24 MHz for USB devices; standard 256 fS or 384 fS based rates, such as 12.288 MHz and 24.576 MHz; and many common audio sampling rates, such as 96 kHz, 88.2 kHz, 48 kHz, 44.1 kHz, 32 kHz, 24 kHz, 22.05 kHz, 16 kHz, 12 kHz, 11.025 kHz, and 8 kHz.The SSM2603 can operate at power supplies as low as 1.8 V for the analog circuitry and as low as 1.5 V for the digital circuitry. The maximum voltage supply is 3.6 V for all supplies.The SSM2603 software-programmable stereo output options provide the user with many application possibilities. Its volume control functions provide a large range of gain control of the audio signal.The SSM2603 is specified over the industrial temperature range of ?40?C to +85?C. It is available in a 28-lead, 5 mm ? 5 mm lead frame chip scale package (LFCSP).Applications Mobile phones MP3 players Portable gaming Portable electronics Educational toys
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | SSM2603-EVALZ-ND | 0 | $183.90 | $183.90 | $183.90 | $183.90 | $183.90 | $183.90 | |
Analog Devices Inc | SSM2603-EVALZ | 0 | $185.70 | $185.70 | $185.70 | $185.70 | $185.70 | $185.70 | |
element14 APAC | SSM2603-EVALZ | 0 | 1 | * $213.98 | * $213.98 | * $213.98 | * $213.98 | * $213.98 | * $213.98 |
Farnell | SSM2603-EVALZ | 0 | 1 | * $183.98 | * $183.98 | * $183.98 | * $183.98 | * $183.98 | * $183.98 |
Mouser Electronics | 584-SSM2603-EVALZ | 2 | $150.35 |
USB-I2C/LIN-CONV-Z
Analog Devices Inc.
The ADuC7019?/?ADuC7020?/ ADuC7021 /?ADuC7022?/?ADuC7024?/?ADuC7025?/ ADuC7026?/?ADuC7027?/?ADuC7028?/?ADuC7029 are fully integrated,1 MSPS, 12-bit data acquisition systems incorporating highperformance multichannel ADCs, 16-bit/32-bit MCUs, andFlash?/EE memory on a single chip.The ADC consists of up to 12 single-ended inputs. An additionalfour inputs are available but are multiplexed with the four DACoutput pins. The four DAC outputs are available only on certainmodels (ADuC7020, ADuC7026, ADuC7028, and ADuC7029).However, in many cases where the DAC outputs are not present,these pins can still be used as additional ADC inputs, giving amaximum of 16 ADC input channels. The ADC can operate insingle-ended or differential input mode. The ADC input voltageis 0 V to VREF. A low drift band gap reference, temperature sensor,and voltage comparator complete the ADC peripheral set.Depending on the part model, up to four buffered voltageoutput DACs are available on-chip. The DAC output range isprogrammable to one of three voltage ranges.The devices operate from an on-chip oscillator and a PLLgenerating an internal high frequency clock of 41.78 MHz(UCLK). This clock is routed through a programmable clockdivider from which the MCU core clock operating frequencyis generated. The microcontroller core is an ARM7TDMI?,16-bit/32-bit RISC machine, which offers up to 41 MIPS peakperformance. Eight kilobytes of SRAM and 62 kilobytes ofnonvolatile Flash/EE memory are provided on-chip. TheARM7TDMI core views all memory and registers as a singlelinear array.On-chip factory firmware supports in-circuit serial downloadvia the UART or I2C serial interface port; nonintrusive emulationis also supported via the JTAG interface. These features areincorporated into a low cost QuickStart? development systemsupporting this MicroConverter? family.The parts operate from 2.7 V to 3.6 V and are specified over anindustrial temperature range of ?40?C to +125?C. Whenoperating at 41.78 MHz, the power dissipation is typically120 mW. The ADuC7019 / ADuC7020 / ADuC7021 /? ADuC7022 / ADuC7024 / ADuC7025 / ADuC7026 / ADuC7027 / ADuC7028 / ADuC7029 areavailable in a variety of memory models and packages (seeOrdering Guide).APPLICATIONS Industrial control and automation systems Smart sensors, precision instrumentation Base station systems, optical networking
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-USB-I2C/LIN-CONV-Z-ND | 0 | $113.32 | $113.32 | $113.32 | $113.32 | $113.32 | $113.32 | |
Analog Devices Inc | USB-I2C/LIN-CONV-Z | 0 | $112.92 | $112.92 | $112.92 | $112.92 | $112.92 | $112.92 | |
Arrow North American Components | USB-I2C/LIN-CONV-Z | 0 | 1 | $91.78 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
element14 APAC | USB-I2C/LIN-CONV-Z | 4 | 1 | * $125.48 | * $125.48 | * $125.48 | * $125.48 | * $125.48 | * $125.48 |
Farnell | USB-I2C/LIN-CONV-Z | 4 | 1 | * $124.67 | * $124.67 | * $124.67 | * $124.67 | * $124.67 | * $124.67 |
Mouser Electronics | 584-USB-I2CLINCONVZ | 4 | 1 | $117.45 | $117.45 | $117.45 | $117.45 | $117.45 | $117.45 |
Newark | USB-I2C/LIN-CONV-Z | 4 | 1 | $112.92 | $112.92 | $112.92 | $112.92 | $112.92 | $112.92 |
Verical Marketplace | USB-I2C/LIN-CONV-Z | 223 | 1 | $122.36 | $115.66 | $112.57 | $111.09 | $111.09 | $111.09 |
EVAL-ADXL357Z
Analog Devices Inc.
The analog output ADXL356 and the digital output ADXL357 are low noise density, low 0 g offset drift, low power, 3-axis accelerometers with selectable measurement ranges. The ADXL356B supports the ?10 g and ?20 g ranges, the ADXL356C supports the ?10 g and ?40 g ranges, and the ADXL357 supports the ?10 g, ?20 g, and ?40 g ranges.The ADXL356/ADXL357 offer industry leading noise, minimal offset drift over temperature, and long-term stability, enabling precision applications with minimal calibration.The low drift, low noise, and low power ADXL357 enables accurate tilt measurement in an environment with high vibration. The low noise of the ADXL356 over higherfrequencies is ideal for condition-based monitoring and other vibration sensing applications.The ADXL357 multifunction pin names may be referenced only by their relevant function for either the serial peripheral interface (SPI) or limited I2C interface.Applications Inertial measurement units (IMUs)/altitude and heading reference systems (AHRSs) Platform stabilization systems Structural health monitoring Seismic imaging Tilt sensing Robotics Condition monitoring
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-EVAL-ADXL357Z-ND | 3 | $44.07 | $44.07 | $44.07 | $44.07 | $44.07 | $44.07 | |
Analog Devices Inc | EVAL-ADXL357Z | 0 | $42.80 | $42.80 | $42.80 | $42.80 | $42.80 | $42.80 | |
Arrow North American Components | EVAL-ADXL357Z | 1 | 1 | $43.19 | $43.19 | $43.19 | $43.19 | $43.19 | $43.19 |
element14 APAC | EVAL-ADXL357Z | 1 | 1 | * $48.49 | * $48.49 | * $48.49 | * $48.49 | * $48.49 | * $48.49 |
Farnell | EVAL-ADXL357Z | 4 | 1 | * $46.41 | * $46.41 | * $46.41 | * $46.41 | * $46.41 | * $46.41 |
Mouser Electronics | 584-EVAL-ADXL357Z | 140 | 1 | $44.52 | $44.52 | $44.52 | $44.52 | $44.52 | $44.52 |
Newark | EVAL-ADXL357Z | 13 | 1 | $43.51 | $43.51 | $43.51 | $43.51 | $43.51 | $43.51 |
Verical Marketplace | EVAL-ADXL357Z | 1 | 1 | $43.19 | $43.19 | $43.19 | $43.19 | $43.19 | $43.19 |
EVAL-ADXL362Z-S
Analog Devices Inc.
The ADXL362 is an ultralow power, 3-axis MEMS accelerometer that consumes less than 2 ?A at a 100 Hz output data rate and 270 nA when in motion triggered wake-up mode. Unlike accelerometers that use power duty cycling to achieve low power consumption, the ADXL362 does not alias input signals by undersampling; it samples the full bandwidth of the sensor at all data rates.The ADXL362 always provides 12-bit output resolution; 8-bit formatted data is also provided for more efficient single-byte transfers when a lower resolution is sufficient. Measurement ranges of ?2 g, ?4 g, and ?8 g are available, with a resolution of 1 mg/LSB on the ?2 g range. For applications where a noise level lower than the normal 550 ?g/?Hz of the ADXL362 is desired, either of two lower noise modes (down to 175 ?g/?Hz typical) can be selected at minimal increase in supply current.In addition to its ultralow power consumption, the ADXL362 has many features to enable true system level power reduction. It includes a deep multimode output FIFO, a built-in micropower temperature sensor, and several activity detection modes including adjustable threshold sleep and wake-up operation that can run as low as 270 nA at a 6 Hz (approximate) measurement rate. A pin output is provided to directly control an external switch when activity is detected, if desired. In addition, the ADXL362 has provisions for external control of sampling time and/or an external clock.The ADXL362 operates on a wide 1.6 V to 3.5 V supply range, and can interface, if necessary, to a host operating on a separate, lower supply voltage. The ADXL362 is available in a 3 mm ? 3.25 mm ? 1.06 mm package.APPLICATIONS Hearing aids Home healthcare devices Motion enabled power save switches Wireless sensors Motion enabled metering devices
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-EVAL-ADXL362Z-S-ND | 0 | $206.76 | $206.76 | $206.76 | $206.76 | $206.76 | $206.76 | |
Analog Devices Inc | EVAL-ADXL362Z-S | 0 | $209.45 | $209.45 | $209.45 | $209.45 | $209.45 | $209.45 | |
element14 APAC | EVAL-ADXL362Z-S | 0 | 1 | * $201.08 | * $201.08 | * $201.08 | * $201.08 | * $201.08 | * $201.08 |
Farnell | EVAL-ADXL362Z-S | 0 | 1 | * $170.30 | * $170.30 | * $170.30 | * $170.30 | * $170.30 | * $170.30 |
Mouser Electronics | 584-EVAL-ADXL362Z-S | 0 | 1 | $217.84 | $217.84 | $217.84 | $217.84 | $217.84 | $217.84 |
Newark | EVAL-ADXL362Z-S | 0 | $163.13 | $163.13 | $163.13 | $163.13 | $163.13 | $163.13 | |
Win Source | EVAL-ADXL362Z-S | 2 | 1 |
Evaluating the ADXL371 Micropower, 3-Axis, ±200 g Digital Output, MEMS Accelerometer
Analog Devices Inc.
The EVAL-ADXL371Z is a simple evaluation board that allows quick evaluation of the performance of the ADXL371 ultralow power, 3-axis, digital output MEMS accelerometer. The EVAL-ADXL371Z is ideal for evaluation of the ADXL371 in an existing system because the stiffness and the small size of the evaluation board minimize the effect of the board on both the system and acceleration measurements.
For full specifications on the ADXL371, see the ADXL371 data sheet, which should be consulted in conjunction with the user guide when using this evaluation board.
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | 505-EVAL-ADXL371Z-ND | 0 | $39.66 | $39.66 | $39.66 | $39.66 | $39.66 | $39.66 | |
Analog Devices Inc | EVAL-ADXL371Z | 0 | $38.40 | $38.40 | $38.40 | $38.40 | $38.40 | $38.40 | |
element14 APAC | EVAL-ADXL371Z | 5 | 1 | * $42.68 | * $42.68 | * $42.68 | * $42.68 | * $42.68 | * $42.68 |
Farnell | EVAL-ADXL371Z | 5 | 1 | * $41.78 | * $41.78 | * $41.78 | * $41.78 | * $41.78 | * $41.78 |
Mouser Electronics | 584-EVAL-ADXL371Z | 10 | 1 | $40.34 | $40.34 | $40.34 | $40.34 | $40.34 | $40.34 |
Newark | EVAL-ADXL371Z | 5 | 1 | $38.40 | $38.40 | $38.40 | $38.40 | $38.40 | $38.40 |
EVAL-ADXRS290Z-S
Analog Devices Inc.
The ADXRS290 is a high performance pitch and roll (dual-axis in-plane) angular rate sensor (gyroscope) designed for use in stabilization applications.The ADXRS290 provides an output full-scale range of ?100?/s with a sensitivity of 200 LSB/?/s. Its resonating disk sensor structure enables angular rate measurement about the axes normal to the sides of the package around an in-plane axis. Angular rate data is formatted as 16-bit twos complement and is accessible through a SPI digital interface. The ADXRS290 exhibits a low noise floor of 0.004?/s/?Hz and features programmable high-pass and low-pass filters.The ADXRS290 is available in a 4.5 mm ? 5.8 mm ? 1.2 mm, 18-terminal cavity laminate package.APPLICATIONS Optical image stabilization Platform stabilization Wearable products
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | EVAL-ADXRS290Z-S-ND | 1 | $188.73 | $188.73 | $188.73 | $188.73 | $188.73 | $188.73 | |
Analog Devices Inc | EVAL-ADXRS290Z-S | 0 | $190.71 | $190.71 | $190.71 | $190.71 | $190.71 | $190.71 | |
element14 APAC | EVAL-ADXRS290Z-S | 0 | 1 | * $199.73 | * $199.73 | * $199.73 | * $199.73 | * $199.73 | * $199.73 |
Farnell | EVAL-ADXRS290Z-S | 0 | 1 | * $169.15 | * $169.15 | * $169.15 | * $169.15 | * $169.15 | * $169.15 |
Mouser Electronics | 584-EVAL-ADXRS290Z-S | 0 | 1 | $198.35 | $198.35 | $198.35 | $198.35 | $198.35 | $198.35 |
Newark | EVAL-ADXRS290Z-S | 0 | $162.04 | $162.04 | $162.04 | $162.04 | $162.04 | $162.04 |
EVAL-ADXRS453Z
Analog Devices Inc.
The ADXRS453 is an angular rate sensor (gyroscope) intended for industrial, instrumentation, and stabilization applications in high vibration environments. An advanced, differential, quad sensor design rejects the influence of linear acceleration, enabling the ADXRS453 to offer high accuracy rate sensing in harsh envi-ronments where shock and vibration are present.The ADXRS453 uses an internal, continuous self-test architec-ture. The integrity of the electromechanical system is checked by applying a high frequency electrostatic force to the sense structure to generate a rate signal that can be differentiated from the base-band rate data and internally analyzed.The ADXRS453 is capable of sensing an angular rate of up to ?300?/sec. Angular rate data is presented as a 16-bit word that is part of a 32-bit SPI message.The ADXRS453 is available in a 16-lead plastic cavity SOIC (SOIC_CAV) and an SMT-compatible vertical mount package (LCC_V), and is capable of operating across a wide voltage range (3.3 V to 5 V). ApplicationsRotation sensing in high vibration environments Rotation sensing for industrial and instrumentation applicationsHigh performance platform stabilization
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1,000 | 10,000 |
---|---|---|---|---|---|---|---|---|---|
DigiKey | EVAL-ADXRS453Z-V-ND | 0 | $98.47 | $98.24 | $98.24 | $98.24 | $98.24 | $98.24 | |
Analog Devices Inc | EVAL-ADXRS453Z | 0 | $97.75 | $97.75 | $97.75 | $97.75 | $97.75 | $97.75 | |
element14 APAC | EVAL-ADXRS453Z | 1 | 1 | * $106.62 | * $106.62 | * $106.62 | * $106.62 | * $106.62 | * $106.62 |
Farnell | EVAL-ADXRS453Z | 1 | 1 | * $104.66 | * $104.66 | * $104.66 | * $104.66 | * $104.66 | * $104.66 |
Mouser Electronics | 584-EVAL-ADXRS453Z | 3 | 1 | $101.67 | $101.67 | $101.67 | $101.67 | $101.67 | $101.67 |
Newark | EVAL-ADXRS453Z | 1 | 1 | $95.94 | $95.94 | $95.94 | $95.94 | $95.94 | $95.94 |
Win Source | EVAL-ADXRS453Z | 1 | 1 |