AD2S1210WDSTZ Detailed explanation of pin function specifications and circuit principle instructions

The part number "AD2S1210WDSTZ" refers to an Analog Devices product, specifically the AD2S1210 device. This is a precision resolver-to-digital converter (RDC) used for converting analog resolver signals into digital outputs for precise angle measurement. The WDSTZ suffix in the part number corresponds to a 16-lead TSSOP (Thin Shrink Small Outline Package), a common packaging style for surface-mount devices.

Here’s the detailed breakdown of the pin function specifications for the AD2S1210WDSTZ in a tabular format:

Pin Function Table for AD2S1210WDSTZ (16-Lead TSSOP)

Pin Number Pin Name Pin Function Description 1 VDD Power supply pin. Connect to positive supply voltage (typically +5V). 2 VSS Ground pin. Connect to system ground. 3 SINE+ Positive input for the sine wave signal from the resolver. 4 SINE- Negative input for the sine wave signal from the resolver. 5 COS+ Positive input for the cosine wave signal from the resolver. 6 COS- Negative input for the cosine wave signal from the resolver. 7 SINE_REF Reference input for the sine waveform. 8 COS_REF Reference input for the cosine waveform. 9 Z_PHASE Input for the optional Z signal (resolver feedback). 10 Z_REF Reference for the Z signal input. 11 RDY Ready output signal. This pin is active low when the device is ready for data transfer. 12 CLKOUT Clock output. Provides a clock signal for synchronization with other devices. 13 FS Full-scale output. This output signal is used to represent the maximum angular measurement. 14 AOUT Analog output pin that provides the converted digital angle value. 15 DIR Direction input. Defines the direction of rotation (CW or CCW) for angle measurement. 16 RESET Reset pin. Active low resets the device.

Package and Pinout Details

Package Type: 16-lead TSSOP (Thin Shrink Small Outline Package) Package Size: 5.0mm x 4.4mm Lead Pitch: 0.65mm

The AD2S1210WDSTZ provides 16 pins in a surface-mount package and includes both analog and digital interface pins to allow for precision angle measurements from resolvers.

20 Common FAQs Regarding the AD2S1210WDSTZ (in Q&A format)

Q: What is the power supply voltage for the AD2S1210WDSTZ? A: The AD2S1210WDSTZ requires a 5V power supply for proper operation.

Q: What is the purpose of the SINE+ and SINE- pins on the AD2S1210WDSTZ? A: The SINE+ and SINE- pins are used to input the sine wave signal from the resolver.

Q: How do I connect the cosine signal to the AD2S1210WDSTZ? A: You connect the positive cosine signal to the COS+ pin and the negative cosine signal to the COS- pin.

Q: What is the purpose of the RDY pin? A: The RDY pin indicates when the AD2S1210WDSTZ is ready to output the converted digital angle data. It is active low.

Q: How is the direction of rotation specified on the AD2S1210WDSTZ? A: The direction is specified by the DIR pin, where high indicates clockwise (CW) and low indicates counter-clockwise (CCW).

Q: How does the AD2S1210WDSTZ handle a reset? A: The RESET pin is used to reset the device. It is active low and resets the device to its initial state when pulled low.

Q: What type of outputs does the AD2S1210WDSTZ provide? A: It provides both digital and analog outputs, including the RDY (ready), AOUT (analog output), and CLKOUT (clock output).

Q: What is the purpose of the ZPHASE and ZREF pins? A: The ZPHASE and ZREF pins are used to input the Z feedback signal from the resolver. They are optional and can be used for additional position measurement.

Q: How do I handle the CLKOUT pin on the AD2S1210WDSTZ? A: The CLKOUT pin provides a clock output that can be used for synchronization with other devices.

Q: Is the AD2S1210WDSTZ compatible with a 3.3V supply? A: No, the AD2S1210WDSTZ is designed to operate with a 5V supply voltage. Operating it at 3.3V may lead to improper functionality.

Q: What is the maximum output frequency of the AD2S1210WDSTZ? A: The AD2S1210WDSTZ supports a maximum output frequency of 500 kHz.

Q: How can I use the FS pin? A: The FS pin is used to indicate the full-scale angle range of the resolver, typically corresponding to 360° or another angular range depending on the setup.

Q: What type of resolver can I use with the AD2S1210WDSTZ? A: You can use a 2-phase resolver with sine and cosine wave signals.

Q: How do I set the reference for the sine and cosine signals? A: The reference signals for sine and cosine are provided through the SINEREF and COSREF pins.

Q: Can I use the AD2S1210WDSTZ for absolute angle measurement? A: Yes, it can be used for both absolute and incremental angle measurement, depending on the resolver configuration.

Q: What happens if the device is not reset? A: If the device is not reset, it may not function properly, and initialization may fail. The reset pin should be asserted low during startup.

Q: How precise is the angle measurement with the AD2S1210WDSTZ? A: The AD2S1210WDSTZ provides high precision with a resolution of up to 16 bits for the digital output.

Q: What are the key differences between the AD2S1210 and other RDCs from Analog Devices? A: The AD2S1210 offers specific features like high-speed sampling, precise digital output, and support for 2-phase resolvers, making it ideal for applications requiring accurate angle measurements.

Q: What is the typical application for the AD2S1210WDSTZ? A: Typical applications include motor control systems, robotics, and any system requiring precise angle measurement from a resolver.

Q: Can I use the AD2S1210WDSTZ in a high-speed data communication environment? A: Yes, it is suitable for high-speed data communication environments where precise angle data is needed in real-time.

This explanation provides detailed insight into the AD2S1210WDSTZ, with a full description of pin functions, packaging, and application. Let me know if you need further clarification or additional information!