Data Sheet

Linkplay Technology Inc. A128 SOM Datasheet Rev.03
Confidential of Linkplay Technology Inc. 6
2.2 Application Processor
The QCS405 device is an audio/Wi-Fi SoC for use in the smart Speaker, Smart Assistant, Mesh
router and Soundbar markets. It includes a 64-bit ARM Cortex-A53 Quad-core application processor.
QCS405 supports up to 12 channels.
Figure 2-2 QCS405 Subsystem
2.3 eMCP
 32-bit 8Gb LPDDR31866MHz
 eMMC Data transfer rate: up to 400MB/s
 MMC I/F Clock frequency: 0~200MHz
2.4 PMIC-PMS405
 System-clock and sleep-clock sources for QCS405 chipset
 Two RF (low noise) outputs
 One BB (low-noise) output
 Sleep-clock output
 SPMI RCS support for interrupt communication
2.5 WLAN-BT
2.5.1 WCN3999
 2x2 802.11ac with MU-MIMO
 160 MHz & DBS support
 Concurrent operation for WLAN and BT with and without dedicated BT antenna