Quectel 5G Module Series Hardware Design

5G Module Series
RM500Q-AE&RM502Q-AE Hardware Design
RM500Q-AE&RM502Q-AE_Hardware_Design 46 / 86
Table 18: PCIe Turn-on Timing of the Module
4.4. PCM Interface
The module supports audio communication via Pulse Code Modulation (PCM) digital interface. The PCM
interface supports the following modes:
⚫ Primary mode (short frame synchronization): the module works as both master and slave.
⚫ Auxiliary mode (long frame synchronization): the module works as master only.
In primary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising
edge. The PCM_SYNC falling edge represents the MSB. In this mode, the PCM interface supports 256
kHz, 512 kHz, 1024 kHz or 2048 kHz PCM_CLK at 8 kHz PCM_SYNC, and also supports 4096 kHz
PCM_CLK at 16 kHz PCM_SYNC.
In auxiliary mode, the data is sampled on the falling edge of the PCM_CLK and transmitted on the rising
edge. The PCM_SYNC rising edge represents the MSB. In this mode, PCM interface operates with a
256 kHz PCM_CLK and an 8 kHz, 50 % duty cycle PCM_SYNC only.
The module supports 16-bit linear data format. The following figures show the primary mode’s timing
relationship with 8 kHz PCM_SYNC and 2048 kHz PCM_CLK, as well as the auxiliary mode’s timing
relationship with 8 kHz PCM_SYNC and 256 kHz PCM_CLK.
Symbol
Min.
Typ.
Max.
Comment
T
power-on
0 ms
20 ms
-
Module power-on time depending on the host.
T
turn-on
-
68 ms
-
Module system turn on time.
T
FCPO#-CLKREQ#
90 ms
100 ms
-
PCIe clock request.
T
FCPO#-PERST#
100 ms
-
-
PCIe reset.
T
PERST#-CLK
100 μs
-
-
The time period during which REFCLK is stable
before PERST# is inactive.

Quectel 5G Module Series Specifications

General

Brand	Quectel
Model	5G Module Series
Category	Motherboard
Language	English