25LC010AT - 1K SPI Serial EEPROM
The Microchip Technology Inc. 25XX010A* is a 1 Kbit Serial Electrically Erasable Programmable Read-Only Mem-
ory (EEPROM). The memory is accessed via a simple Serial Peripheral Interface (SPI) compatible serial bus. The
bus signals required are a clock input (SCK) plus separate data in (SI) and data out (SO) lines. Access to the device is
controlled through a Chip Select (CS) input.
AD2428 - Automotive Audio Bus A
2
B Transceiver
The Automotive Audio Bus (A
2
B
®
) provides a multichannel, I2S/TDM link over distances of up to 15 m between
nodes. It embeds bidirectional synchronous pulse-code modulation (PCM) data (for example, digital audio), clock,
and synchronization signals onto a single differential wire pair. A
2
B supports a direct point to point connection and
allows multiple, daisy-chained nodes at different locations to contribute and/or consume time division multiplexed
channel content.
A
2
B is a single-master, multiple-slave system where the transceiver chip at the host controller is the master. The mas-
ter generates clock, synchronization, and framing for all slave nodes. The master A
2
B chip is programmable over a
control bus (I
2
C) for configuration and read back. An extension of this control bus is embedded in the A
2
B data
stream, which grants direct access of registers and status information on slave transceivers as well as I
2
C to I
2
C com-
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-toanalog converters (DACs), and codecs through a multichannel I
2
S/TDM interface. It also provides a pulse
density modulation (PDM) interface for direct connection of up to four PDM digital microphones.
Finally, the transceiver also supports an A
2
B bus powering feature, where the master node supplies voltage and cur-
rent to the slave nodes over the same daisy-chained, twisted pair wire cable as used for the communication link.
ADAU1962A - 12 Channel, High Performance, 192kHz, 24-Bit
DAC
The ADAU1962A is a high performance, single-chip digital-to-analog converter (DAC) that provides 12 DACs
with differential or single-ended output using the Analog Devices, Inc., patented multibit sigma-delta (
Σ
-
Δ
) archi-
tecture. A serial peripheral interface (SPI)/I2C port is included, allowing a micro-controller to adjust volume and
many other parameters. The ADAU1962A operates from 2.5 V digital and 3.3 V analog supplies. A linear regulator
is included to generate the digital supply voltage from the analog supply voltage.
The ADAU1962A is designed for low EMI. This consideration is apparent in both the system and circuit design
architectures. By using the on-board PLL to derive the internal master clock from an external LRCLK, the
ADAU1962A can eliminate the need for a separate high frequency master clock and can be used with or without a
25LC010AT - 1K SPI Serial EEPROM
ADZS-21569-EZKIT
Manual
2–5
Summary of Contents for ADZS-21569-EZKIT
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