C6747/45/43 Complementary Products

From Texas Instruments Embedded Processors Wiki

Contents 1 Introduction 2 Audio Input/Output 3 Analog-to-Digital Converters 4 Digital-to-Analog Converters 5 RS-232 6 Miscellaneous 7 Clocking 8 Power

Introduction

This page serves as a repository of Complimentary Devices that can be paired with C6747/45/43 floating-point digital signal processors (DSPs) when integrating the device into a system. The Complementary Products listed here serve a wide range of functions such as:

• Providing basic support functions for the SoC (power, clocking, etc.)
• Expanding the interface options beyond the on-chip peripherals
• Creating the link between the digital domains on the SoC to the system's analog/physical domains

The Complementary Products are organized into functional categories, with the goal of showing several options and their respective Benefits.

Audio Input/Output

The Multi-channel Audio Serial Ports (McASP) included in C6747/45/43 devices can be used for interfacing to audio Codecs, ADCs, DACs, Digital Power Amplifiers, and more. Below is a sampling of audio Codecs that would be a good match for C6747/45/43 DSPs. Also view the Audio Guide for a comprehensive selection of complementary audio products. Note that the C6747/45 DSPs include three McASPs, while C6743 includes only two.

Part Number	Description	Compatible Part Numbers	Device Interface	Details
TLV320AIC3107	Low Power Stereo CODEC with Integrated Mono Class-D Speaker Amplifiers	TLV320AIC3007	McASP	Stereo CODEC with Integrated MONO Class-D Amp Audio ADC + Audio DAC Seven Audio Input Pins
TLV320AIC3104	Low Power Stereo Audio CODEC For Portable Audio/Telephony		McASP	Stereo Audio DAC+ADC Six Audio Output Drivers Automatic Gain Control 14mW Stereo 48-kHz PB
TLV320AIC3254	Low Power Stereo Audio Codec	TLV320AIC3204	McASP	4.1 mW Stereo 48ksps DAC Playback 6.1 mW Stereo 48 ksps ADC Record Low Power Bypass

Analog-to-Digital Converters

The serial peripheral interface (SPI) included in C6747/45/43 DSPs can be used to interface to low-speed serial ADCs. Below is a list of ADCs compatible with C6747/45/43 DSPs .  Also see the Data Converter Selection Guide for a comprehensive guide to data coverter solutions from TI. Note that C6747/45 DSPs inlclude two SPIs, while C6743 includes only one.

Part Number	Description	Compatible Part Numbers	Device Interface	Details
ADS7884	Single-channel, 10-bit, 3MSPS serial ADC	ADS7885	SPI	10-bit SAR ADC with sample rate of 3MSPS. ADS7885 is 8-bit version.

Digital-to-Analog Converters

The serial peripheral interface (SPI) included in C6747/45/43 DSPs can be used to interface to low-speed DACs. Below is a list of ADCs compatible with C6747/45/43 DSPs. Also see the Data Converter Selection Guide for a comprehensive guide to data coverter solutions from TI. Note that C6747/45 DSPs inlclude two SPIs, while C6743 includes only one.

Part Number	Description	Compatible Part Numbers	Device Interface	Details
DAC8831	Single-channel, 16-bit, 2MSPS serial DAC	DAC8830	SPI	16-bit, 1-channel DAC with voltage output and sample rate of 2MSPS. Power consumption is 15uW at 3V. DAC8830 is a lower speed version.

RS-232

The UART peripheral included in C6747/45/43 DSPs can be used to implement a RS-232 interface when paired with the appropriate line driver/receiver. All UARTs on C6747/45/43 DSPs support transmit/receive. Additionally, UART0 supports modem control functions (CTS, RTS). Below is a sampling of RS-232 products with varying numbers of drivers/receivers to support the desired RS-232 capabilities. Note that the C6747/45 DSPs include three UARTs, while the C6743 DSP includes only two UARTs.

Part Number	Description	Device Interface	Benefits
TRSF3232E	Two-Channel RS-232 Driver/Receiver	UART0	Adds RS-232 (with modem control) Capabilities Operates up to 1 Mbit/s ±15-kV HBM ±15-kV IEC 61000-4-2 Air-Gap Discharge ±8-kV IEC 61000-4-2 Contact Discharge Dual-channel
TRSF3221E	Single-Channel RS-232 Driver/Receiver	UART0/1/2	Adds RS-232 (without modem control) Capabilities Operates up to 1 Mbit/s ±15-kV HBM ±15-kV IEC 61000-4-2 Air-Gap Discharge ±8-kV IEC 61000-4-2 Contact Discharge Single-channel

Miscellaneous

C6747/45/43 DSPs include two I2C interfaces which can be used to communicate with off-chip peripherals like temperature sensors and touch screen controllers.  Below is a sampling of off-chip peripherals which can be used with C6747/45/43 DSPs.

Part Number	Description	Compatible Part Numbers	Device Interface	Details
TMP102	Low-power Digital Temperature Sensor		I2C0/1	Low Quiescent Current 10 uA (MAX) 12-bit Resolution 10 uA (MAX) shutdown current Supply Range: 1.4V to 3.6V Accuracy: 0.5°C (–25°C to +85°C)
TCA8418 (TBA)	Keypad Scan with Integrated ESD Protection		I2C0/1	QWERTY keyboard operation plus GPIO expansion 8x10 kepad array supported (80 buttons) Integrated ESD protection Stanby current: 3uA 1.65V to 3.6V operating supply voltage

TBA = to be announced

Clocking

C6747/45/43 DSPs require a 12 to 30MHz main clock. While a crystal can be paired with the internal oscillator to provide this clock, an external clock generator/synthesizer can sometimes be more cost effective. Clock generators/synthesizers can use a single crystal to produce many clock output frequencies using their internal PLLs. Not only can they source both the main clock for the DSP, they can also provide the clock for other devices in the system such as the audio and video encoders/decoders.

Below is a sampling of clock generators/synthesizers that would complement C6747/45/43 DSPs. Also view the Clocks and Timing Selection Guide for a comprehensive guide to clocking solutions from TI.

Part Number	Description	Device Interface	Details
WIP		Clock Input	WIP

Power

C6747/45/43 DSPs require regulated Core (1.2V) and I/O (1.8V & 3.3V) voltages, sequenced in a low-to-high order. When selecting voltage regulators to pair with C6747/45/43 DSPs, TI provides an C6747/45/43 DSPs Power Consumption Summary (TBD) to help size the regulators for the worst case power of the system.

In addition, TI provides Power Management websites for the C6747/45 and C6743 that gives detailed power specs, power reference designs covering multiple design care-abouts, and other useful links. These power reference designs are built and tested based on the worst case power specs given in the power spec table.

Below is a sampling of the power management products that complement C6747/45/43 devices.

Part Number	Description	Details
TPS65023	6-channel Power Mgmt IC with 3DC/DCs, 3 LDOs, I2C Interface and DVS	The TPS65023 provides the complete power needs for the OMAP-L137 in a single device
TPS62410	Dual 800mA, Adjustable, 2.25MHz Step-Down Converter with Integrated FETs & 1-Wire Interface in QFN	High Efficiency—up to 95% VIN Range From 2.5 V to 6 V Output Current 2 x 800 mA EasyScale™ Optional One Pin Serial Interface for Dynamic Output Voltage Adjustment Power Save Mode at Light Load Currents
TPS62353	3MHz DCDC Converter with Integrated FETs & I2C for Dynamic Voltage Scaling	88% Efficiency at 3-MHz Operation Output Peak Current up to 800mA Best in Class Load and Line Transient Available in a 10-Pin QFN (3 x 3 mm) 12-Pin NanoFree™ (CSP) Packaging
TPS74801	Single Output LDO, 1.5A, Adjustable Output, Programmable Soft-Start	VOUT Range: 0.8V to 3.6V 2% Accuracy Over Line/Load/Temperature Programmable Soft-Start Provides Linear Voltage Startup Stable with Any Output Capacitor ≥ 2.2uF
TPS71718	Single Output LDO, 150mA, Fixed(1.8V), High PSRR, Low Quiescent Current, Low Noise	150mA Low-Dropout Regulator with Enable Low Iq: 45µA (typical) Ultra-High PSRR: 70dB at 1kHz, 67dB at 100kHz and 45dB at 1MHz Low Noise: 30µV typical (100Hz to 100kHz) Stable with a 1.0µF Ceramic Capacitor Also Available in Fixed Output & Adjustable Output Voltage versions

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