User's Manual
Table Of Contents
- 1. General Specification
- 2. Module Identification
- 3. Module Connection
- 4. Applications
- 5. Electrical Specifications
- 5-1. Absolute Maximum Ratings
- 5-2. Recommended operating Range
- 5-3. Electrical Characteristics – DC
- 5-4. Electrical Characteristics – RF TX
- 5-5. Electrical Characteristics – RF RX
- 5-6. Electrical Characteristics – RF PLL
- 5-7. Electrical Characteristics – Audio C/CS
- 5-8. I2S Communication Interface Timing
- 5-9. I2C Slave Communication Interface Timing
- 6. Certificate Statement
USER MANUAL
WSA520S
Wireless Audio Transceiver, 5GHz 30.0x40.4x3.2[mm], 24pin FFC Version: 01
14 /17 OCT 29, 2020
Requirement per KDB996369 D03
2.2 List of applicable FCC rules
List the FCC rules that are applicable to the modular transmitter. These are the rules that specifically establish the
bands of operation, the power, spurious emissions, and operating fundamental frequencies. DO NOT list
compliance to unintentional-radiator rules (Part 15 Subpart B) since that is not a condition of a module grant that
is extended to a host manufacturer. See also Section 2.10 below concerning the need to notify host
manufacturers that further testing is required.3
Explanation: This module meets the requirements of FCC part 15C(15.247). part 15E(15.407)
2.3 Summarize the specific operational use conditions
Describe use conditions that are applicable to the modular transmitter, including for example any limits on
antennas, etc. For example, if point-to-point antennas are used that require reduction in power or compensation
for cable loss, then this information must be in the instructions. If the use condition limitations extend to
professional users, then instructions must state that this information also extends to the host manufacturer’s
instruction manual. In addition, certain information may also be needed, such as peak gain per frequency band
and minimum gain, specifically for master devices in
5 GHz DFS bands.
Explanation: The EUT has a Chip Antenna, and the antenna use a permanently attached antenna which is not replaceable.
2.4 Limited module procedures
If a modular transmitter is approved as a “limited module,” then the module manufacturer is responsible for
approving the host environment that the limited module is used with. The manufacturer of a limited module must
describe, both in the filing and in the installation instructions, the alternative means that the limited module
manufacturer uses to verify that the host meets the necessary requirements to satisfy the module limiting
conditions.
A limited module manufacturer has the flexibility to define its alternative method to address the conditions that
limit the initial approval, such as: shielding, minimum signaling amplitude, buffered modulation/data inputs, or
power supply regulation. The alternative method could include that the limited module manufacturer reviews
detailed test data or host designs prior to giving the host manufacturer approval.
This limited module procedure is also applicable for RF exposure evaluation when it is necessary to
demonstrate compliance in a specific host. The module manufacturer must state how control of the product into
which the modular transmitter will be installed will be maintained such that full compliance of the product is
always ensured. For additional hosts other than the specific host originally granted with a limited module, a Class
II permissive change is required on the module grant to register the additional host as a specific host also
approved with the module.
Explanation: The module is not a limited module.