Analog Devices EVAL-SSM3515Z, Руководство пользователя

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EVAL-SSM3515Z User Guide
UG-580
One
Technology Way
•
P.O. Box 9106
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Norwood, MA 02062-9106, U.S.A.
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Tel: 781.329.4700
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Fax: 781.461.3113
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www.analog.com
Evaluating the SSM3515 25 W, Filterless, Class-D, Digital Input Audio Amplifier
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Rev. A | Page 1 of 19
FEATURES
Filterless digital input, mono Class-D amplifier
Operates from a single 4.5 V to 17 V supply
25 W output power, 16 V supply and 4 Ω load at 1% THD + N
107 dB A-weighted signal-to-noise ratio
93.3% efficiency into 8 Ω load at 12 V
I
2 C control with up to 4 pin-selectable slots/addresses
Digital interface supports sample rates from 8 kHz to 192 kHz
Flexible digital and analog gain adjustment
Flexible supply monitoring AGC function
Short-circuit and thermal protection, thermal warning
EVALUATION KIT CONTENTS
EVAL-SSM3515Z evaluation board
EVAL-ADUSB2EBZ USB interface board (USBi)
User GUI with SigmaStudio software (download from
product page)
DOCUMENTS NEEDED
SSM3515 data sheet
EVAL-SSM3515Z user guide
GENERAL DESCRIPTION
The EVAL-SSM3515Z is an evaluation board for quick evaluation
of the SSM3515 . The board uses a single supply from 4.5 V to
17 V. The board includes 3.3 V and 1.8 V regulators. The on-board
digital SPDIF optical input generates the serial digital signal to
the
SSM3515 . The board provides register control using USBi
with SigmaStudio ™-based GUI or the Total Phase Aardvark™
I 2 C/SPI Host Adapter. The application circuit requires a minimum
of external components and can operate from a single 4.5 V to
17 V supply. It is capable of delivering 8 W of continuous output
power into an 8 Ω load, and 15 W into an 4 Ω load from a 12 V
power supply. The board can deliver 25 W into a 4 Ω load from
a 16 V power supply, all with <1% total harmonic dist
noise (THD + N); however, output powers above 20 W are not
continuous due to the thermal limit.
This user guide describes how to configure and use the
EVAL-
SSM3515Z evaluation board. When using the evaluation board,
consult this user guide in conjunction with the SSM3515 data
sheet, which provides specifications, internal block diagrams,
and application guidance for the amplifier IC.
The
EVAL-SSM3515Z evaluation board includes a complete
circuit for driving a loudspeaker. Figure 1 shows the top view of
the evaluation board, and Figure 2 shows the bottom view of the
evaluation board.
EVALUATION BOARD TOP VIEW AND BOTTOM VIEW
1
1691-
001
Figure 1. EVAL-SSM3515Z Evaluation Board Top View
1
1691-
002
Figure 2. EVAL-SSM3515Z Evaluation Board Bottom View