SPRAC31
February 2019
TMS320C5505
,
TMS320C5515
,
TMS320C5535
TMS320C5505/15/35/45 schematic checklist
Trademarks
1
Introduction
1.1
Device Applicability
1.2
Links to TI Hardware Designs Based on C5505/15/35/45
1.2.1
C5505 eZdsp
1.2.2
C5515 eZdsp
1.2.3
C5515 EVM
1.2.4
C5535 eZdsp
1.2.5
C5535 Audio Capacitive Touch BoosterPack
1.2.6
C5545 BoosterPack (BOOST5545ULP)
1.3
EVM vs Data Sheet
2
Complimentary Resources
3
Recommendations Specific to C5504/05/14/15/32/33/34/35/45
3.1
Before You Begin
3.1.1
Documentation
3.1.2
Pin Out
3.2
Unused Pins
3.3
Unused Power Rails
3.3.1
If USB is not Used
3.3.2
If RTC is not Used
3.3.3
If EMIF is not Used (not applicable to C5532/33/34/35 or C5545)
3.3.4
If an On-Chip LDO Output is not Used
3.4
Clocking
3.5
OSC Internal Oscillator Clock Source
3.6
Power
3.6.1
CVDDRTC Must be Always Supplied - [0.998 V - 1.43 V]
3.6.2
LDOI Must be Always Supplied
3.6.3
On-Chip LDOs
3.6.4
Recommended PMIC
3.6.5
DVDDIO Supply ON While CVDD OFF
3.6.6
Power Sequencing
3.6.7
Voltage Rails of IO Pins
3.7
Decoupling Capacitors
3.8
LDO Output Decoupling Capacitors
3.9
Digital GND, Analog GND, Local GND
3.9.1
Recommended USB Supplies
3.10
Reset
3.11
USB
3.12
I2C
3.13
I2S
3.14
RTC
3.15
SAR ADC
3.16
Pin Muxing
3.17
Signal Visibility
3.18
EMIF (not applicable to C5532/33/34/35 or C5545)
3.19
JTAG
3.20
Bootloader
4
References
3.3.1
If USB is not Used
Terminate USB pins to permanently disable USB
USB_LDOO must be left floating (can be disabled in software - LDOCNTL register [7004h])
USB_R1 signal must be connected via a 10 kΩ resistor to ground
Short the following USB pins directly to ground:
USB_MXI
USB_VDDOSC
USB_VSSOSC
USB_VBUS
USB_DP
USB_DM
USB_VSSREF
USB_VDDA3P3
USB_VDDA1P3
USB_VDD1P3
USB_VDDPLL
USB_VSSPLL
USB_VSS1P3
USB_VSSA3P3