Ad1937 - Four Adcs/Eight Dacs With Pll, 192 Khz, 24-Bit Codec; Ada4841 - Low Power, Low Noise And Distortion, Rail-To-Rail Output Amplifiers; Adg774 - Cmos 3 V/5 V, Wide Bandwidth Quad 2:1 Mux - Analog Devices EVAL-AD2437A1MZ Manual

Independent sub and main I2C/SPI control ports allow the ADAU1452 not only to be programmed and configured
by an external main device, but also to act as a main that can program and configure external slave devices directly.
This flexibility, combined with self boot functionality, enables the design of standalone systems that do not require
any external input to operate.
The power efficient DSP core executes full programs while consuming only a few hundred milliwatts (mW) of pow-
er and can run at a maximum program load while consuming less than a watt, even in worst case temperatures ex-
ceeding 100°C. This relatively low power consumption and small footprint make the ADAU1452 ideal replace-
ments for large, general-purpose DSPs that consume more power at the same processing load.
AD1937 - Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Co-
dec
The AD1937 is a high performance, single-chip codec that provides four analog-to-digital converters (ADCs) with
differential input and eight digital-to-analog converters (DACs) with differential output, using the Analog Devices,
Inc., patented multibit sigma delta (Σ-Δ) architecture. An I2C port is included, allowing a microcontroller to adjust
volume and many other parameters. The AD1937 operates from 3.3 V digital and analog supplies. The AD1937 is
available in a 64-lead (differential output) LQFP.
The AD1937 is designed for low EMI. This consideration is apparent in both the system and circuit design architec-
tures. By using the on-board PLL to derive the master clock from the LR (frame) clock or from an external crystal,
the AD1937 eliminates the need for a separate high frequency master clock and can also be used with a suppressed
bit clock. The DACs and ADCs are designed using the latest Analog Devices continuous time architecture to further
minimize EMI. By using 3.3 V supplies, power consumption is minimized and further reduces emissions.
ADA4841 - Low Power, Low Noise and Distortion, Rail-to-Rail
Output Amplifiers
The ADA4841-1/ADA4841-2
a quiescent current of 1.5 mA maximum. In spite of their low power consumption, these amplifiers offer low wide-
band voltage noise performance of 2.1 nV/√Hz and 1.4 pA/√Hz current noise, along with excellent spurious-free
dynamic range (SFDR) of −105 dBc at 100 kHz. To maintain a low noise environment at lower frequencies, the
amplifiers have low 1/f noise of 7 nV/√Hz and 13 pA/√Hz at 10 Hz. The ADA4841-1/ADA4841-2 output can
swing to less than 50 mV of either rail. The input common-mode voltage range extends down to the negative sup-
ply. The ADA4841-1/ ADA4841-2 can drive up to 10 pF of capacitive load with minimal peaking.

ADG774 - CMOS 3 V/5 V, Wide Bandwidth Quad 2:1 Mux

The ADG774 is a monolithic CMOS device comprising four 2:1 multiplexer/demultiplexers with high impedance
outputs. The CMOS process provides low power dissipation yet gives high switching speed and low on resistance.
The on resistance variation is typically less than 0.5 Ω with an input signal ranging from 0 V to 5 V.
EVAL-AD2437A1MZ Manual
are unity gain stable, low noise and distortion, rail-to-rail output amplifiers that have

AD1937 - Four ADCs/Eight DACs with PLL, 192 kHz, 24-Bit Codec

2–5