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Doc. No: Unex-HDG-20-001 

 

 

 

10/11

 

A printed version of this document is an uncontrolled copy 

©  2020 Unex Technology Corporation – Company Confidential 

Pin 

Symbol 

Type 

Pull 

Drive   

Strength   

(mA) 

Description 

Power 

Domain 

56 

UART4_RXD 

PU 

UART Interface, Receive input for RF0 cable 

compensator 

VDD_3.3V 

57 

S_GPIO15 

I/O 

PU 

General Purpose I/O 

VDD_3.3V 

58 

GND 

Ground 

59 

M3_CLK32KOUT 

Output 32 kHz clock.

 

RTC Clock source for 

external CPU 

VDD_3V3_A 

60 

GND 

 

 

Ground 

61 

VBAT_3V3_AO_PG_OC 

PU 

Low voltage indicator (LVI). Used by PMU to 
change system state from normal to standby

 

(Falling = Stand By; Rising = Wake Up) 

VDD_3V3_A 

62 

CAN0_INH 

PU 

CAN0 Inhibit pin. Active HIGH. 

(High = CAN standby; Low = CAN normal) 

VDD_3.3V 

63 

M3_ONOFF 

PU 

On/Off bottom input. Falling edge toggles 

Normal => Standby or Standby => Normal 

operation. 

VDD_3V3_A 

64 

VDD_3V3_A 

3.3V Power Supply Always On (VDD_3V3_A) 

65 

GND 

Ground 

66 

UART2_TXD 

PU 

UART Interface, Transmit output 

VDD_3.3V 

67 

UART2_RXD 

PU 

UART Interface, Receive input 

VDD_3.3V 

68 

UART3_TXD 

PU 

UART Interface, Transmit output   

(console, 115200bps, 8N1) 

VDD_3.3V 

69 

UART3_RXD 

PU 

UART Interface, Receive input   

(console, 115200bps, 8N1) 

VDD_3.3V 

70 

N.C. 

Non Connection 

71 

N.C. 

Non Connection 

72 

N.C. 

Non Connection 

73 

N.C. 

Non Connection 

74 

GND 

Ground 

75 

SAR_ADC_CH0 

Analog to Digital Converter, resolution 10bits, 

ENOB 9bits, sampling rate 2.5MHz 

VDD_3.3V 

76 

SAR_ADC_CH1 

Analog to Digital Converter, resolution 10bits, 

ENOB 9bits, sampling rate 2.5MHz 

VDD_3.3V 

77 

SAR_ADC_CH2 

Analog to Digital Converter, resolution 10bits, 

ENOB 9bits, sampling rate 2.5MHz 

VDD_3.3V 

78 

SAR_ADC_CH3 

Analog to Digital Converter, resolution 10bits, 

ENOB 9bits, sampling rate 2.5MHz 

VDD_3.3V 

79 

GND 

Ground 

80 

USB0_DP 

I/O 

USB differential line D+ 

VDD_3.3V 

81 

USB0_DN 

I/O 

USB differential line D- 

VDD_3.3V 

82 

GND 

Ground 

83 

GND 

Ground 

84 

USB1_DP 

I/O 

USB differential line D+ 

VDD_3.3V 

85 

USB1_DN 

I/O 

USB differential line D- 

VDD_3.3V 

86 

GND 

Ground 

87 

I2C_SCL 

I/O 

PU 

I2C Interface, clock line 

VDD_3.3V 

88 

I2C_SDA 

I/O 

PU 

I2C Interface, data line 

VDD_3.3V 

89 

RF2_COMP_TX_EN 

PU 

Tx/Rx control for the RF1 cable compensator 

VDD_3.3V 

90 

WD_OUT_IND 

PU 

Asserted upon SoC WD reset; Can be used to 

reset devices on board (like SQI flash) upon 

SoC WD reset. 

VDD_3.3V 

91 

S_GPIO4 

I/O 

PU 

General Purpose I/O 

VDD_3.3V 

92 

GND 

Ground 

Summary of Contents for VTX-301

Page 1: ...1 Revision 0 3 Authors Nidor Huang Quick Start Guide for VTX 301 Reviewers Department Name Acceptance Date Note PD Nidor Huang 2020 4 7 RD JY Ou Modification History Revision Date Originator Comment 0...

Page 2: ...mmission Interference Statement 4 4 4 Modular approval RF Exposure 5 4 5 Labelling Requirements for the Host device 5 5 Product Appearance 6 6 Functional Block Diagram 6 7 I O Interfaces 7 7 1 Antenna...

Page 3: ...ce Unex VTX 301 datasheet Hirose U FL series catalog I PEX MHF Micro RF coax connector product series catalog 3 Safety Guideline Do not touch the module while power is applied Hold the module by its e...

Page 4: ...on warming as shown in this manual 4 3 Federal Communications Commission Interference Statement This equipment has been tested and found to comply with the limits for a Class B digital device pursuant...

Page 5: ...distance of at least 20 cm from all persons and must not be co located or operating in conjunction with any other antenna or transmitter End users and installers must be provide with antenna installa...

Page 6: ...1 6 11 A printed version of this document is an uncontrolled copy 2020 Unex Technology Corporation Company Confidential 5 Product Appearance Figure 1 Appearance 6 Functional Block Diagram Figure 2 Fun...

Page 7: ...connectors com for more detail Figure 3 Antenna connectors The antenna connection is one of the most important aspect in the full product design as it strongly affects the RF performance Connecting c...

Page 8: ...2 Pinout Please note that the pinout listed here is seen from the VTX 301 side For designing a system board interface the input and output direction must be reversed Typical internal PU PD resistor is...

Page 9: ...PU 8 Ethernet MAC Interface Tx Clock VDD_3 3V 32 GND G Ground 33 ETH0_TX0 O PU 8 Ethernet MAC Interface Tx Data line 0 VDD_3 3V 34 ETH0_TX1 O PU 8 Ethernet MAC Interface Tx Data line 1 VDD_3 3V 35 ET...

Page 10: ...5200bps 8N1 VDD_3 3V 69 UART3_RXD I PU 4 UART Interface Receive input console 115200bps 8N1 VDD_3 3V 70 N C Non Connection 71 N C Non Connection 72 N C Non Connection 73 N C Non Connection 74 GND G Gr...

Page 11: ...fill the air gap between VTX 301 and its system board could help disperse heat generated by the VTX 301 to the system board It is recommended to keep continuous large copper pour area on the system PC...

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