ZS2S Module Datasheet

ZS2S is a low-power embedded Zigbee module that Tuya has developed. It consists of a highly integrated RF processor chip (EFR32MG21A020F768IM32-B) and several peripheral components, with an embedded 802.15.4 PHY/MAC Zigbee network protocol stack and robust library functions.

Overview

ZS2S is embedded with a 32-bit low-power Arm Cortex-M33 core, 768 KB flash memory, and 64 KB random-access memory (RAM), and has extensive peripherals.

Features

• Embedded low-power 32-bit Arm Cortex-M33 processor, which provides digital signal processor (DSP) instructions and floating-point units (FPUs) and can also function as an application processor
• Clock rate: 80 MHz
• Working voltage:2.0V-3.8V
• Peripherals: 5xPWMs，1xADC，1xUART
• Zigbee features
  • Channels 11 to 26 at 2.405 GHz to 2.480 GHz, 250 kbit/s air interface rate
  • Maximum output power: +20 dBm;
  • Dynamic output power: > 35 dB
  • Runtime power consumption: 60 µA/MHz; current in sleep mode: 5 µA
  • Proactive device pairing for terminals
  • Onboard PCB antenna with antenna gain 1dBi
  • Working temperature:-40℃ to +85℃

Application scenarios

• Intelligent building
• Smart household and home appliances
• Smart socket and light
• Industrial wireless control
• Baby monitor
• Network camera
• Intelligent bus

Change history

Module interfaces

Dimensions and footprint

ZS2S has two rows of pins with a 2±0.1 mm pin spacing.
ZS2S dimensions (W x D x H) are 14.9 (±0.35) mm (W)×17.9 (±0.35) mm (L) ×2.8(±0.15) mm（H）.Figure shows the ZS2S front and rear views.

Interface pin definition

Test pin definition

Note: P indicates a power supply pin, and I/O indicates an input/output pin.

Electrical parameters

Absolute electrical parameters

Working conditions

RF current consumption

Working current

RF features

Basic RF features

TX performance

RX performance

RX sensitivity

Antenna information

Antenna type

ZS2S uses an PCB antenna, antenna gain is 1dBi.

Antenna interference reduction

To ensure optimal Zigbee performance when the Zigbee module uses a PCB antenna, it is recommended that the antenna be at least 15 mm away from other metal parts. To prevent adverse impact on the antenna radiation performance, avoid copper or traces along the antenna area on the PCB.

Packaging information and production instructions

Mechanical dimensions

Note: The default tolerance of module overall dimension is ± 0.35 mm，Key dimension tolerance is ± 0.1 mm.If the customer has clear requirements for key dimensions，please make clear calibration in the specification after communication。

Production instructions

• For the in-line module developed by Tuya, the wave soldering equipment is most preferred and manual soldering is less preferred. After being unpacked, the module must be soldered within 24 hours. Otherwise, it must be put into the drying cupboard where the RH is not greater than 10%, or it needs to be packaged under vacuum again and record the exposure time (the total exposure time cannot exceed 168 hours).

• Soldering equipment and materials:

  • Wave soldering equipment
  • Wave soldering fixture
  • Constant-temperature soldering iron
  • Tin bar, tin wire, and flux
  • Oven temperature tester

• Baking equipment:

  • Cabinet oven
  • Anti-static heat-resistant pallets
  • Anti-static heat-resistant gloves

• The module needs to be baked in the following cases:

  • The vacuum packing bag was found to be damaged before being unpacked.
  • There is no humidity indicator card (HIC) in the vacuum packing bag.
  • After being unpacked, 10% and above circles on the HIC become pink.
  • The total exposure time has been more than 168 hours since unpacking.
  • More than 12 months have passed since the sealing date of the bag.

• Baking settings:

  • Temperature: 60°C and ≤ 5%RH for reelizing and 125°C and ≤5%RH for palletizing (please use heat-resistant pallet rather than plastic pallet)

  • Time: 48 hours for reelizing and 12 hours for palletizing

  • Alarm temperature: 65°C for reelizing and 135°C for palletizing

  • Production ready temperature after natural cooling: < 36°C

  • The number of drying times: 1

  • Re-baking requirement: If a module remains unused for 168 hours after being unpacked, it must be baked again.

    Important: If this batch of modules is not baked within 168 hours, do not use the wave soldering to solder them. Because the modules are 3-level moisture-sensitive components, they are very likely to get damp when exposed outside. In this case, if they are soldered at high temperatures, it may result in component failure or poor soldering.

• In the whole production process, take electrostatic discharge (ESD) protective measures.

• To guarantee the quality of products, you must pay attention to the following items:

  • The amount of soldering flux.
  • The height of the wave peak.
  • Whether the tin slag and copper content in the wave soldering tank exceed standards.
  • Whether the window and thickness of the wave soldering fixture are appropriate.
  • Whether the wave soldering oven temperature curve is reasonable.

Recommended oven temperature curve and temperature

For oven temperature setting, refer to oven temperatures for wave soldering. The peak temperature is 260°C±5°C. The wave soldering temperature curve is shown below:

Recommended soldering temperature:

Storage conditions

Storage conditions for a delivered module are as follows:

• The moisture-proof bag is placed in an environment where the temperature is below 40°C and the relative humidity is lower than 90%.

• The shelf life of a dry-packaged product is 12 months from the date when the product is packaged and sealed.

• The package contains a humidity indicator card (HIC).

  

  

MOQ and packing information

Appendix: Statement

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate this equipment.

This device complies with Part 15 of the FCC Rules.Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which
  the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

Radiation Exposure Statement

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled rolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator and your body.

Important Note

This radio module must not installed to co-locate and operating simultaneously with other radios in host system except in accordance with FCC multi-transmitter product procedures. Additional testing and equipment authorization may be required to operating simultaneously with other radio.

The availability of some specific channels and/or operational frequency bands are country dependent and are firmware programmed at the factory to match the intended destination. The firmware setting is not accessible by the end user.

The host product manufacturer is responsible for compliance to any other FCC rules that apply to the host not covered by the modular transmitter grant of certification. The final host product still requires Part 15 Subpart B compliance testing with the modular transmitter installed.
The end user manual shall include all required regulatory information/warning as shown in this manual, including: This product must be installed and operated with a minimum distance of 20 cm between the radiator and user body.

This device have got a FCC ID: 2ANDL-ZS2S.The final end product must be labeled in a visible area with the following: “Contains Transmitter Module FCC ID: 2ANDL-ZS2S”

This device is intended only for OEM integrators under the following conditions:

1. The antenna must be installed such that 20cm is maintained between the antenna and users, and

2. The transmitter module may not be co-located with any other transmitter or antenna.

As long as 2 conditions above are met, further transmitter test will not be required. However, the OEM integrator is still responsible for testing their end-product for any additional compliance requirements required with this module installed.

Declaration of Conformity European notice

Hereby, Hangzhou Tuya Information Technology Co., Ltd declares that this module product is in compliance with essential requirements and other relevant provisions of Directive 2014/53/EU,2011/65/EU.A copy of the Declaration of conformity can be found at https://www.tuya.com

This product must not be disposed of as normal household waste, in accordance with EU directive for waste electrical and electronic equipment (WEEE- 2012/19/EU). Instead，it should be disposed of by returning it to the point of sale, or to a municipal recycling collection point.

The device could be used with a separation distance of 20cm to the human body.