Ada4661 -18 V, Precision, 725 Μa, 4 Mhz, Cmos Rrio Operational Amplifier; Adau1701 Sigmadsp 28-/56-Bit Audio Processor With Two Adcs And Four Dacs - Analog Devices EVAL-AD2437B1MZ Manual

ADA4661 -18 V, Precision, 725 µA, 4 MHz, CMOS RRIO Operational Amplifier
The AD2437 provides a multi-channel, I2S/TDM link over distances of up to 30 m between nodes. It embeds bi-
directional synchronous pulse-code modulation (PCM) data (for example, digital audio), clock, and synchronization
signals onto a single differential wire pair. A
sy-chained nodes at different locations to contribute and/or consume time division multiplexed channel content.
2
A B is a single-main, multiple-sub system where the transceiver at the host controller is the main node and generates
clock, synchronization, and framing for all sub nodes. The main A
2
(I C and SPI) for configuration and read back. An extension of this control bus is embedded in the A
stream, which grants direct access of registers and status information on sub transceivers as well as I
munication over distance.
The transceiver can connect directly to general-purpose digital signal processors (DSPs), field-programmable gate
arrays (FPGAs), application specific integrated circuits (ASICs), microphones, analog-to-digital converters (ADCs),
digital-to-analog converters (DACs), and codecs through a multi-channel I
pulse density modulation (PDM) interface for direct connection of up to four PDM digital microphones.
Finally, the transceiver also supports an A
to the sub nodes over the same daisy-chained, twisted pair cable as used for the communication link. Please refer to
the datasheet for more details.
ADA4661 -18 V, Precision, 725 µA, 4 MHz, CMOS RRIO Opera-
tional Amplifier
The ADA4661-2 is a dual, precision, rail-to-rail input/output amplifier optimized for low power, high bandwidth,
and wide operating supply voltage range applications.
The ADA4661-2 performance is guaranteed at 3.0 V, 10 V, and 18 V power supply voltages. It is an excellent selec-
tion for applications that use single-ended supplies of 3.3 V, 5 V, 10 V, 12 V and 15 V, and dual supplies of ±2.5 V,
±3.3 V, and ±5 V. It uses the Analog Devices, Inc., patented DigiTrim® trimming technique, which achieves low
offset voltage. Additionally, the unique design architecture of the ADA4661-2 allows it to have excellent power sup-
ply rejection, common-mode rejection, and offset voltage when operating in the common-mode voltage range of
−VSY + 1.5 V to +VSY − 1.5 V.
ADAU1701 SigmaDSP 28-/56-Bit Audio Processor with Two
ADCs and Four DACs
The ADAU1701 is a complete single-chip audio system with a 28-/56-bit audio DSP, ADCs, DACs, and microcon-
troller-like control interfaces. Signal processing includes equalization, crossover, bass enhancement, multiband dy-
namics processing, delay compensation, speaker compensation, and stereo image widening. This processing can be
used to compensate for real-world limitations of speakers, amplifiers, and listening environments, providing dramat-
ic improvements in perceived audio quality.
2–4
2
B supports a direct point to point connection and allows multiple, dai-
2
B bus powering feature, where the main node supplies voltage and current
2
B device is programmable over a control bus
2
S/TDM interface. It also provides a
EVAL-AD2437B1MZ Manual
2
B data
2
C and SPI com-