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One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com
PACKAGE CONTENTS
EVAL-SSM2932Z
evaluation board
OTHER SUPPORTING DOCUMENTATION
SSM2932
data sheet
GENERAL DESCRIPTION
The
SSM2932
is a stereo headphone amplifier capable of
delivering 50 mW continuous output power per channel into
16 Ω single-ended loads at the 1% THD + N threshold. The
stereo headphone drivers are highly efficient, true ground-
referenced Class-G technology.
The
SSM2932
incorporates a gain control pin that selects
between 0 dB and 6 dB. The ground-referenced output scheme
eliminates the need for large dc-blocking capacitors, reducing
system BOM cost and board area. The Class-G amplifier is
Figure 1.
SSM2932
PLEASE SEE THE LAST PAGE FOR AN IMPORTANT
WARNING AND LEGAL TERMS AND CONDITIONS.
Evaluation Board for
Class-G Headphone Amplifier
DIGITAL PICTURE OF THE EVALUATION BOARD
Evaluation Board Top View
Evaluation Board User Guide
SSM2932
High Efficiency
fine-tuned to maximize battery life, a critical task in portable
applications. The device maximizes battery life by modulating
the amplifier power supply rail to match the output demand
without consuming excessive supply current, thus reducing
power dissipation during typical audio playback.
The
SSM2932
is specified over the industrial temperature range
(−40°C to +85°C). It has output short-circuit protection along
with ESD protection to 8 kV using a human body model. It is
available in 16-ball 1.6 mm × 1.6 mm wafer level chip scale
package (WLCSP).
EVALUATION BOARD OVERVIEW
The
SSM2932
evaluation board carries a complete application
circuit for driving a headphone. Figure 1 shows the top view of
the evaluation board, and Figure 2 shows the bottom view.
Figure 2.
Rev. 0 | Page 1 of 8
SSM2932
Evaluation Board Bottom View
UG-373
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Table of Contents
Related Manuals for Analog Devices UG-373
Summary of Contents for Analog Devices UG-373
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Page 1: Package Contents
Evaluation Board User Guide UG-373 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluation Board for SSM2932 High Efficiency Class-G Headphone Amplifier PACKAGE CONTENTS fine-tuned to maximize battery life, a critical task in portable applications. -
Page 2: Table Of Contents
UG-373 Evaluation Board User Guide TABLE OF CONTENTS Package Contents ................1 Output Configuration ..............3 Other Supporting Documentation ..........1 Ground Sense .................3 General Description ................. 1 Power Supply Configuration ............3 Evaluation Board Overview ............1 Passive Component Selection ............4 Digital Picture of the Evaluation Board ......... -
Page 3: Setting Up The Evaluation Board
Evaluation Board User Guide UG-373 SETTING UP THE EVALUATION BOARD INPUT CONFIGURATION OUTPUT CONFIGURATION Four of the 2-pin headers (J1, J2, J5, and J6) feed the stereo The output connector, J8 can be connected to a set of head- differential audio signal into the board (see Figure 1). If the phones with a minimum impedance of 16 Ω. -
Page 4: Passive Component Selection
UG-373 Evaluation Board User Guide PASSIVE COMPONENT SELECTION CHARGE PUMP FLYING CAPACITOR INPUT GAIN RESISTORS The headphone amplifier uses Class-G architecture and generates If the desired gain of the amplifier is lower than the default 6 dB the required power supplies with a built-in charge pump, using a or 0 dB gain settings, a series resistor can be placed in the input flying capacitor connected across CF1 and CF2, C8. -
Page 5: Evaluation Board Schematic And Artwork
Evaluation Board User Guide UG-373 EVALUATION BOARD SCHEMATIC AND ARTWORK Figure 3. Schematic of the SSM2932 Evaluation Board Rev. 0 | Page 5 of 8... - Page 6 UG-373 Evaluation Board User Guide Figure 4. Top Layer Copper Figure 6. Third Layer Copper—VDD Plane Figure 5. Second Layer Copper—GND Plane Figure 7. Bottom Layer Copper Figure 8. Top Silkscreen Rev. 0 | Page 6 of 8...
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Page 7: Ordering Information
Evaluation Board User Guide UG-373 ORDERING INFORMATION BILL OF MATERIALS Table 2. Reference Designator Description Supplier/Part No. SSM2932 Analog Devices/SSM2932CBZ C1, C2, C3, C4 Capacitor, ceramic 1.0 µF, 25 V, X7R, 080 Taiyo Yuden/TMK212B7105KG-T C5, C8 Capacitor, ceramic 1.0 µF, 25 V, X7R, 0603 Taiyo Yuden/TMK107B7105KA-T Capacitor, ceramic 0.1 µF, 16 V, X7R, 0603... - Page 8 By using the evaluation board discussed herein (together with any tools, components documentation or support materials, the “Evaluation Board”), you are agreeing to be bound by the terms and conditions set forth below (“Agreement”) unless you have purchased the Evaluation Board, in which case the Analog Devices Standard Terms and Conditions of Sale shall govern. Do not use the Evaluation Board until you have read and agreed to the Agreement.
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