OMAP-L137 Complementary Products

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Introduction

This page serves as a repository of Complimentary Devices that can be paired with the OMAP-L137/C6747/AM1707 devices 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

OMAP-L137/C6747/AM1707 devices include a sixteen-serializer Multi-channel Audio Serial Port (McASP) 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 OMAP-L137/C6747/AM1707devices. 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
  • 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 OMAP-L137/C6747/AM1707serial peripheral interface (SPI) can be used to interface to low-speed serial ADCs. Below is a list of ADCs compatible with OMAP-L137/C6747/AM1707devices.  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
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 OMAP-L137/C6747/AM1707 serial peripheral interface (SPI) can be used to interface to low-speed DACs. Below is a list of ADCs compatible with OMAP-L137/C6747/AM1707devices. 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
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 OMAP-L137/C6747/AM1707 UART peripheral can be used to implement a RS-232 interface when paired with the appropriate line driver/receiver. All three UARTs on OMAP-L137/C6747/AM1707 devices 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.


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

OMAP-L137/C6747/AM1707 devices 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 OMAP-L137/C6747/AM1707 devices.


Part Number Description Compatible Part Numbers
Device Interface Details
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

OMAP-L137/C6747/AM1707 devices 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 OMAP-L137/C6747/AM1707 devices, 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 OMAP-L137/C6747/AM1707 devices. 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

OMAP-L137/C6747/AM1707 devices 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 OMAP-L137 devices, TI provides an OMAP-L137/C6747/AM1707 Power Consumption Summary to help size the regulators for the worst case power of the system.


In addition, TI provides a OMAP-L1x7 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-L137/C6747/AM1707devices.

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/C6747/AM1707 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