The new MAX9860 from Maxim is a low-power, mono audio codec with dual ADC paths and programmable digital voice filters. The device employs a flexible clocking scheme that utilises common system clock frequencies ranging from 10 MHz to 60 MHz, eliminating the need for an external PLL and multiple crystal oscillators. The device is targeted at applications such as voice headsets, digital cameras, cellphones, portable recorders, VoIP telephones and conference phones.
The MAX9860 includes two differential microphone inputs with a user-programmable preamplifier and programmable gain amplifier. Automatic gain control with selectable attack/release times and a signal threshold allows maximum dynamic range. A noise gate with a selectable threshold helps quiet the audio channel when no signal is present. This configuration allows the user to select one channel for voice, while the other channel can be converted and processed downstream for echo-noise cancelling and background noise.
The programmable digital voice filters provide full attenuation for out-of-band signals, as well as a 5th-order, GSM-compliant digital high-pass filter. An elliptical digital filter notches the 217 Hz (GSM) frequency for 8 kHz and 16 kHz sample rates. Also, an available digital side-tone mixer provides loopback of the ADC signal (microphones) to the DAC output (headphone) in the case of a headset application.
The analog output is a bridge-tied-load (BTL), mono headphone amplifier. The MAX9860 can output 30 mW into a 32 earpiece while operating from a single 1,8 V power supply. This low-voltage operation translates into low power consumption that makes the IC suitable for battery-powered applications.
The MAX9860 includes two serial data interfaces. The ADC and DAC data is transferred over a flexible digital I²S-compatible interface that also supports TDM mode. General mode settings, including volume control, digital filters, and shutdown, are all programmed through a 2-wire, I²C-compatible interface.
IMU with dual-sensing capability EBV Electrolink
Analogue, Mixed Signal, LSI
ST’s 6-axis inertial measurement unit integrates a dual accelerometer up to 320g and embedded AI for activity tracking and high-impact sensing.
Read more...Plural data converter series
Analogue, Mixed Signal, LSI
Silanna Semiconductor has announced the launch of Plural, a new generation of data converters for customers eager to find a more available, affordable, high-performance alternative to existing brands.
Read more...Precision JFET op-amp Altron Arrow
Analogue, Mixed Signal, LSI
The specifications of the ADA4620 make it optimal as a front-end amplifier in a data-acquisition system, or for a TIA circuit with high input impedance.
Read more...A new era in modular I/O solutions Rugged Interconnect Technologies
Analogue, Mixed Signal, LSI
Aerospace and defence system designers are demanding scalable and high-performance I/O solutions and while traditional mezzanine standards have proven reliable, they often fall short of meeting modern bandwidth, size, and flexibility requirements.
Read more...High voltage instrument op-amp iCorp Technologies
Analogue, Mixed Signal, LSI
The SGM621B is a high accuracy, high voltage instrumentation amplifier, which is designed to set any gain from 1 to 10 000 with one external resistor.
Read more...High-speed SAR ADC simplifies design Altron Arrow
Analogue, Mixed Signal, LSI
The ADI AD4080 simplifies data converter integration by integrating a low drift reference buffer, low dropout regulators and a 16K result data FIFO buffer.
Read more...2-wire quad voltage output DAC Altron Arrow
Analogue, Mixed Signal, LSI
The DAC has a 2-wire serial interface that operates at clock rates up to 400 kHz, and this interface is SMBus compatible, allowing multiple devices to be placed on the same bus.
Read more...Dual-channel ADC for RF applications RFiber Solutions
Analogue, Mixed Signal, LSI
The ARF0471 from Advanced RF is a dual-channel, 14-bit, 3 GSPS ADC, which features an on-chip buffer and sample-and-hold circuit.
printer friendly version