Nvidia JETSON TX2 User Manual

NVIDIA Jetson TX2/TX2i OEM Product Design Guide
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618 60
DMIC Design Guidelines
Table 63. DMIC Interface Signal Routing Requirements
Parameter
Requirement
Units
Notes
Clock Frequency/Period
12/83.33
MHz/ns
Data Bit-rate/Period (DDR24)
24/41.66
Mbps/ns
Configuration / Device Organization
1
load
Topology
Point to Point
Reference plane
GND
Trace Impedance
45-50

±20%
Via proximity (Signal via to GND return via)
< 3.8 (24)
mm (ps)
See Note
Trace spacing Microstrip / Stripline
2x / 2x
dielectric
Max Trace Delay
1280
ps
Max Trace Delay Skew between CLK & DAT
150
ps
Notes:
Up to 4 signal Vias can share a single GND return Via
Table 64. DMIC Signal Connections
Function Name
Type
Termination
Description
AO_DMIC_IN_CLK
O
Digital Microphone Clock: Connect to clock pin of DMIC device
AO_DMIC_IN_DAT
I
Digital Microphone Data: Connect to data pin of DMIC device

Nvidia JETSON TX2 Specifications

General

Brand	Nvidia
Model	JETSON TX2
Category	Microcontrollers
Language	English