C6748/46/42 Complementary Products

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Introduction

This page serves as a repository of Complimentary Devices that can be paired with the C6748/46/42 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 DSP (power, clocking, etc.)
  • Expanding the interface options beyond the on-chip peripherals
  • Creating the link between the digital domains on the DSP 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.


Analog Video Input

NOTE: Applies to C6748 and C6746 only.

C6748 and C6746 DSPs include a 8-/16-bit digital video input port (VPIF) that can be interfaced with a video decoder, or ADC, to bring analog SD video into the DSP. Before bringing the analog video into the ADC, it is also necessary to run it through an anti-aliasing filter to restrict the bandwidth before sampling. Below is a sample of SD video decoders and anti-aliasing filters that would be a good match for C6748/46 DSPs. Also view the Video and Imaging Solutions Guide for a comprehensive selection of complementary video products.

Part Number Description Device Interface Details
TVP5147M
Component, S-Video, and Composite Video Decoder
VPIF The following is a summary of the device features:
  • Two 30 MSPS 10-bit A/D channels with programmable gain control
  • Supports NTSC, PAL, SECAM CVBS (composite), and S-video
  • 10 analog video input terminals
  • Programmable video output formats including 10-bit ITU-R BT.656
  • Composite or S-video signals samples at 2x ITU-R BT.601 clock frequency
  • Programmable gain amplifier and automatic gain control circuit
  • Supports different VBI features
TVP5150
Composite, S-Video Video Decoder
VPIF

The following is a summary of the device features:

  • Accepts NTSC/PAL video data
  • ITU-R BT.601 standard sampling
  • 8-bit 4:2:2 or 8-bit ITU-R BT.656 output format
  • Two composite inputs or one S-video input
  • Programmable gain amplifier and automatic gain control circuit
  • Ultralow power consumption: 113mW
  • Power-down mode: <1mW
  • Supports different VBI modes (see device data sheet)
THS7353 3-Channel Video Amplifier/Filter VPIF Integrated Anti-aliasing filter for Video ADCs
  • Selectable SD/ED/HD Filter Cut-off Frequencies
  • 0dB Gain and 2:1 MUX for connecting dual analog video sources


Analog Video Output

Note: Applies to C6748 and C6746 only.

C6748 and C6746 DSPs include a 8-/16-bit digital video output port (VPIF) that can be interfaced with a video encoder, or DAC, to deliver analog SD video from the DSP. On the output of the ADC, it is also necessary to take the analog video through an amplifier and reconstruction filter to achieve the correct gain and remove the high-frequency images of the signal. Below is a sample of SD video DACs, amplifiers, and reconstruction filters that would be a good match for C6748/46 DSPs. Also view the Video and Imaging Solutions Guide for a comprehensive selection of complementary video products.

Part Number Description Compatible Part Numbers Device Interface Details
ADV7343 Component, S-Video, and Composite Video Encoder ADV7342 VPIF

The following is a summary of the device features:

  • 1.8V/3.3V interface support
  • 74.25 MHz 20-/30-bit high definition input support
  • 6, 11-bit, 297 MHz video DACs
  • NTSC M, PAL B/D/G/H/I/M/N, PAL 60 support
  • NTSC and PAL square pixel operation (24.54 MHz/29.5 MHz)
  • Macrovision® Rev 7.1.L1 (SD) and Rev 1.2 (ED) compliant
  • Simultaneous SD and ED/HD operation
THS7314
Video Amplifier

VPIF This device has the following features:
  • 3 SDTV video amplifiers for CVBS, S-video, component, and RGB
  • Low 16mA at 3.3V total quiscent current


Audio Input/Output

C6748/46/42 DSPs include a sixteen-serializer Multi-channel Audio Serial Port (McASP) for interfacing to audio Codecs, ADCs, DACs, Digital Power Amplifiers, and more. In addition, C6748/46/42 DSPs include a Multi-channel Buffered Serial Port (McBSP) for interfacing to a variety of devices, including audio devices. Below is a sampling of audio Codecsthat would be a good match for C6748/46/42 DSPs. Also view the Audio Guide for a comprehensive selection of complementary audio products.

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


Analog-to-Digital Converters

C6748 and C6746 DSPs include a universal parallel port (UPP) which can be used to interface to various devices like high-speed analog-to-digital converters (ADCs).  The UPP supports up to two CMOS I/O channels with a maximum width of 16-bits.  Each channel has separate clock and control signals for independent operation.  Additionally, the UPP can be clocked both externally and internally (high-speed ADCs require a low-jitter, high-frequency clock, see Clocking section for UPP clock solutions).

The C6748, C6746, and C6742 DSPs include a serial peripheral interface (SPI) which can be used to interface to low-speed ADCs.

Below is a list of ADCs compatible with C6748/46/42 DSPs.  Also see the Data Converter Selection Guide for a comprehensive guide to data coverter solutions from TI.

Part Number Description Compatible Part Numbers
Device Interface Details
ADS62P24
Dual-channel, 12-bit, 105MSPS ADC
ADS62P25
ADS62P23
ADS62P22
UPP
  • 12-bit, dual channel, pipeline ADC with a sample rate of up to 105MPSPS.
  • ADS62P25/23/22 provide different levels of MSPS and power.
ADS6123
Single-channel, 12-bit, 80MSPS ADC
ADS6122
ADS6143
ADS6142
UPP
  • 12-bit, single input, pipeline ADC with a sample rate of up to 80MSPS.
  • ADS6122 is also 12-bit ADC, but with lower MSPS and lower power consumption.
  • ADS6143/42 are 14-bit ADCs; pin compatible with the ADS612x devices.
ADS901
Single-channel, 10-bit, 20MSPS ADC
ADS900
UPP
  • 10-bit pipeline ADC with a sample rate of 20MSPS with external reference.
  • ADS900 has both external and internal voltage reference mode.
ADS5232
Dual-channel, 12-bit, 65MSPS ADC
ADS5231
ADS5237
UPP
  • 12-bit, dual input, pipelined, ADC with sample rate up to 65MSPS with external reference.
  • ADS5237 is 10-bit version, ADS5231 is 12-bit version with 40MSPS.
ADS7884
Single-channel, 10-bit, 3MSPS serial ADC
ADS7885
SPI
  • 10-bit SAR ADC with sample rate of 3MSPS.
  • ADS7885 is 8-bit version.

Note: UPP only available on C6748 and C6746.

Digital-to-Analog Converters

C6748 and C6746 DSPs include a universal parallel port (UPP) which can be used to interface to various devices like high-speed digital-to-analog converters (DACs).  The UPP supports up to two CMOS I/O channels with a maximum width of 16-bits.  Each channel has separate clock and control signals for independent operation.  Additionally, the UPP can be clocked both externally and internally (high-speed DACs require a low-jitter, high-frequency clock, see Clocking section for UPP clock solutions).

C6748, C6746, and C6742 DSPs include a serial peripheral interface (SPI) which can be used to interface to low-speed DACs.

Below is a list of ADCs compatible with C6748/46/42 DSPs. Also see the Data Converter Selection Guide for a comprehensive guide to data coverter solutions from TI.

Part Number Description Compatible Part Numbers
Device Interface Details
DAC2904
Dual-channel, 14-bit 125MSPS DAC
DAC2902
DAC2900
UPP
  • 14-bit, 2-channel DAC with current output and sample rate up to 125MSPS.
  • Power consumption: 310mW, power down: 23mW
  • Pin compatibility between family members provides 10-bit (DAC2900), 12-bit (DAC2902), and 14-bit (DAC2904) resolution.
THS5661A
Single-channel, 12-bit, 125MSPS DAC
THS5671A
THS5651A
THS5641A
UPP
  • 12 bit, 1-channel DAC with current output and sample rate up to 125MSPS.
  • Power consumption 175mW at 5V; sleep mode power 25mW at 5V.
  • Alternate part numbers offer pin-compatible options with different precisions: 71A 14-bit; 51A 10-bit; 41A, 8-bit.
DAC2932
Dual-channel, 12-bit, 40MSPS DAC

UPP
  • 12-bit, dual-channel DAC with current ouput and sample rate up to 40MSPS.
  • Includes four voltage output serial DACs, separate from two current output DACs.
  • Low power consumption: 29mW at 40MSPS, 5.5mW standby, 25uW power-down.
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.

Note: UPP only available on C6748 and C6746.


RS-232

The UART peripheral included in C6748, C6746, C6742 DSPs can be used to implement a RS-232 interface when paired with the appropriate line driver/receiver. All three UARTs on C6748/46/42 DSPs support transmit/receive and modem control (RTS, CTS). Below is a sampling of RS-232 products with varying numbers of drivers/receivers to support the desired RS-232 capabilities.


Part Number Description Device Interface Benefits
TRSF3232E Two-Channel RS-232 Driver/Receiver UART0/1/2 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

C6748/46/42 DSPs include an I2C interface 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 C6748/46/42 DSPs.

Part Number Description Compatible Part Numbers
Device Interface Details

TPS65070

(TBA)

Touch Screen Interface
TPS65073
TPS650731
TPS650732
I2C
The TPS6507x devices are power management Ics for portable applications. The touch screen interface is embedded in power management IC.
TMP102
Low-power Digital Temperature Sensor

I2C
  • 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

I2C
  • 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

C6748/46/42 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 sometime 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 C6748/46/42 DSPs, they can also provide the clock for other devices in the system such as the audio and video encoders/decoders.

Additionally, the UPP requires a low-jitter clock to interface to high-speed ADCs and DACs.  The UPP can be configured to operate using an external clock source provided by a clock generator/synthesizer.

Below is a sampling of clock generators/synthesizers that would complement C6748/46/42 DSPs. Also view the Clocks and Timing Selection Guide for a comprehensive guide to clocking solutions from TI.

Part Number Description Device Interface Details
CDCM7005
3.3-V High Performance Clock Synchronizer and Jitter Cleaner
UPP
  • High Performance LVPECL and LVCMOS PLL Clock Synchronizer.
  • LVCMOS input frequencies up to 200MHz.
  • VCXO_IN clock synchronized to one of two reference clocks.
  • Up to 10 LVCMOS outputs and 5 differential LVPECL outputs.
  • VCXO_IN frequencies up to 2GHz.
CDCV304
200-MHz General Purpose Clock Buffer
UPP
  • Operating frequency: 0 to 200MHz.
  • Distributes one clock input to one bank of four outputs.
  • Operates from single 3.3V or 2.5V supply.
CDCM61004
1:4 Ultra Low Jitter Crystal-In Clock Generator
UPP
  • Single-ended or crystal reference input.
  • Input frequency range: 21.875 to 28.47MHz.
  • Supports multiple common LVCMOS output frequencies (62.5 to 250MHz).
WIP
Clock Input WIP

NOTE: UPP only supported on C6748 and C6746.


Power

C6742/C6746/C6748 devices require regulated Core, 1.8V, and 3.3V voltages, sequenced in a low-to-high order.


TI provides a C6742/C6746/C6748 Power Management Website 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 OMAP-L1x8 devices.

Part Number Description Details

TPS65070

(TBA)

Single-chip Power Management IC with battery charger, TSC, wLED drivers
The TPS6507x devices are power management ICs for portable applications.
TPS62111
4.5-17V input, high efficiency DCDC Converter with Integrated FETs
  • High-Efficiency Synchronous Step-Down Converter With up to 95% Efficiency
  • Up to 1.5-A Output Current
  • High Efficiency Over a Wide Load-Current range Due to PFM/PWM Operation Mode
  • Fixed 3.3V output eliminates need for external voltage-setting resistors
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
TPS62420
Dual, Adjustable, 600mA and 1000mA, 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 600 mA and 1000 mA
  • EasyScale™ Optional One Pin Serial Interface for Dynamic Output Voltage Adjustment
  • Power Save Mode at Light Load Currents
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 ≥ 2.2F

TBA = to be announced