SSM2301RMZ-REEL7 Analog Devices Inc, SSM2301RMZ-REEL7 Datasheet

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SSM2301RMZ-REEL7

Manufacturer Part Number
SSM2301RMZ-REEL7
Description
Mono 1.4W Class D Audio Amp
Manufacturer
Analog Devices Inc
Type
Class Dr
Datasheet

Specifications of SSM2301RMZ-REEL7

Output Type
1-Channel (Mono)
Max Output Power X Channels @ Load
1.52W x 1 @ 8 Ohm
Voltage - Supply
2.5 V ~ 5 V
Features
Depop, Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Operational Class
Class-D
Audio Amplifier Output Configuration
1-Channel Mono
Output Power (typ)
1.52x1@8OhmW
Audio Amplifier Function
Speaker
Single Supply Voltage (typ)
3V
Dual Supply Voltage (typ)
Not RequiredV
Power Supply Requirement
Single
Rail/rail I/o Type
No
Power Supply Rejection Ratio
85dB
Single Supply Voltage (min)
2.5V
Single Supply Voltage (max)
5V
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
8
Package Type
MSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
SSM2301-MINI-EVALZ - BOARD EVAL MINI SSM2301SSM2301-EVALZ - BOARD EVAL FOR SSM2301
Lead Free Status / Rohs Status
Compliant
Other names
SSM2301RMZ-REEL7TR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SSM2301RMZ-REEL7
Manufacturer:
ADI
Quantity:
1 002
Part Number:
SSM2301RMZ-REEL7
Quantity:
7
FEATURES
Filterless Class-D amplifier with Σ-Δ modulation
No sync necessary when using multiple Class-D amplifiers
1.4 W into 8 Ω at 5.0 V supply with less than 1% THD + N
85% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
Greater than 98 dB SNR (signal-to-noise ratio)
Single-supply operation from 2.5 V to 5.0 V
20 nA ultralow shutdown current
Short-circuit and thermal protection
Available in 8-lead, 3 mm × 3 mm LFCSP and MSOP packages
Pop-and-click suppression
Built-in resistors reduce board component count
Fixed and user-adjustable gain configurations
APPLICATIONS
Mobile phones
MP3 players
Portable gaming
Portable electronics
Educational toys
GENERAL DESCRIPTION
The SSM2301 is a fully integrated, high efficiency, Class-D audio
amplifier designed to maximize performance for mobile phone
applications. The application circuit requires a minimum of
external components and operates from a single 2.5 V to 5.0 V
supply. It is capable of delivering 1.4 W of continuous output
power with less than 1% THD + N driving an 8 Ω load from
a 5.0 V supply.
The SSM2301 features a high efficiency, low noise modulation
scheme that does not require external LC output filters. The modu-
lation provides high efficiency even at low output power.
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
from Analog Devices, Inc.
SHUTDOWN
AUDIO IN+
AUDIO IN–
0.01µF
0.01µF
NOTES
1
INPUT CAPS ARE OPTIONAL IF INPUT DC COMMON-MODE
VOLTAGE IS APPROXIMATELY V
1
1
IN+
IN–
GAIN
SD
SSM2301
FUNCTIONAL BLOCK DIAGRAM
CONTROL
GAIN
Mono 1.4 W Class-D Audio Amplifier
DD
/2.
BIAS
10µF
Figure 1.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
The SSM2301 operates with 85% efficiency at 1.4 W into 8 Ω
from a 5.0 V supply and has a signal-to-noise ratio (SNR) that
is greater than 98 dB. Spread-spectrum modulation is used to
provide lower EMI-radiated emissions compared with other
Class-D architectures.
The SSM2301 has a micropower shutdown mode with a maximum
shutdown current of 30 nA. Shutdown is enabled by applying
a logic low to the SD pin.
The device also includes pop-and-click suppression circuitry.
This minimizes voltage glitches at the output during turn-on
and turn-off, thus reducing audible noise on activation and
deactivation.
The fully differential input of the SSM2301 provides excellent
rejection of common-mode noise on the input. Input coupling
capacitors can be omitted if the dc input common-mode voltage
is approximately V
The SSM2301 also has excellent rejection of power supply noise,
including noise caused by GSM transmission bursts and RF
rectification. PSRR is typically 63 dB at 217 Hz.
The gain can be set to 6 dB or 12 dB by utilizing the gain control
select pin connected respectively to ground or to VDD. Gain
can also be adjusted externally by inserting a resistor in series
with each input pin.
The SSM2301 is specified over the commercial temperature range
(−40°C to +85°C). It has built-in thermal shutdown and output
short-circuit protection. It is available in both an 8-lead, 3 mm ×
3 mm lead-frame chip scale package (LFCSP) and an 8-lead
MSOP package.
MODULATOR
OSCILLATOR
0.1µF
GND
VDD
Filterless High Efficiency
SUPPRESSION
DRIVER
POP/CLICK
FET
VBATT
2.5V TO 5.0V
DD
/2.
©2007 Analog Devices, Inc. All rights reserved.
OUT+
OUT–
SSM2301
www.analog.com

Related parts for SSM2301RMZ-REEL7

SSM2301RMZ-REEL7 Summary of contents

Page 1

FEATURES Filterless Class-D amplifier with Σ-Δ modulation No sync necessary when using multiple Class-D amplifiers from Analog Devices, Inc. 1.4 W into 8 Ω at 5.0 V supply with less than 1% THD + N 85% efficiency at 5.0 V, ...

Page 2

SSM2301 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 Absolute Maximum Ratings............................................................ 4 Thermal Resistance ...................................................................... 4 ESD Caution.................................................................................. 4 Pin Configurations and Function Descriptions ...

Page 3

SPECIFICATIONS 5 Ω μH, unless otherwise noted Table 1. Parameter DEVICE CHARACTERISTICS Output Power Efficiency Total Harmonic Distortion + Noise Input Common-Mode Voltage Range ...

Page 4

SSM2301 ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings apply at 25°C, unless otherwise noted. Table 2. Parameter Supply Voltage Input Voltage Common-Mode Input Voltage Storage Temperature Range Operating Temperature Range Junction Temperature Range Lead Temperature (Soldering, 60 sec) Stresses above those ...

Page 5

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS PIN OUT– INDICATOR GAIN 2 7 GND SSM2301 IN VDD TOP VIEW (Not to Scale) IN– OUT+ Figure 2. LFCSP Pin Configuration Table 4. Pin Function Descriptions ...

Page 6

SSM2301 TYPICAL PERFORMANCE CHARACTERISTICS 100 R = 8Ω, 15µH L GAIN = 6dB 0.1 0.01 0.0001 0.001 0.01 0.1 OUTPUT POWER (W) Figure 4. THD + N vs. Output Power ...

Page 7

V = 2.5V DD GAIN = 6dB R = 8Ω, 15µ 0.25W 0.125W 0.1 0.075W 0.01 0.001 0.0001 10 100 1k FREQUENCY (Hz) Figure 10. THD + N vs. Frequency 2 ...

Page 8

SSM2301 100 0.2 0.4 0.6 0.8 OUTPUT POWER (W) Figure 16. Efficiency vs. Output Power into 8 ...

Page 9

SD INPUT OUTPUT 0 –1 –2 –10 – TIME (ms) Figure 22. Turn-On Response 7 ...

Page 10

SSM2301 TYPICAL APPLICATION CIRCUITS 0.01µF AUDIO IN+ AUDIO IN– 0.01µ SHUTDOWN NOTES 1 INPUT CAPACITORS ARE OPTIONAL IF INPUT DC COMMON-MODE VOLTAGE IS APPROXIMATELY V 0.01µF AUDIO IN 0.01µF SHUTDOWN EXTERNAL GAIN SETTINGS = 20 log[4/(1 + R/150kΩ)] ...

Page 11

EXTERNAL GAIN SETTINGS = 20 log[4/(1 + R/150kΩ)] SSM2301 0.01µF R IN+ AUDIO IN GAIN R CONTROL IN– 0.01µ GAIN SD SHUTDOWN Figure 27. Single-Ended Input Configuration, User-Adjustable Gain EXTERNAL GAIN SETTINGS = 20 log[2/(1 + R/150kΩ)] SSM2301 ...

Page 12

SSM2301 APPLICATIONS INFORMATION OVERVIEW The SSM2301 mono Class-D audio amplifier features a filterless modulation scheme that greatly reduces external component count, conserving board space and, thus, reducing system cost. The SSM2301 does not require an output filter but, instead, relies ...

Page 13

PROPER POWER SUPPLY DECOUPLING To ensure high efficiency, low total harmonic distortion (THD), and high PSRR, proper power supply decoupling is necessary. Noise transients on the power supply lines are short-duration voltage spikes. Although the actual switching frequency can range ...

Page 14

... SSM2301CPZ-REEL −40°C to +85°C 1 SSM2301CPZ-REEL7 −40°C to +85°C 1 SSM2301RMZ-R2 −40°C to +85°C 1 SSM2301RMZ-REEL −40°C to +85°C 1 SSM2301RMZ-REEL7 −40°C to +85°C SSM2301-EVALZ RoHS Compliant Part. 3.00 0.60 MAX BSC SQ 8 2.75 TOP BSC SQ VIEW ...

Page 15

NOTES Rev Page SSM2301 ...

Page 16

SSM2301 NOTES ©2007 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06163-0-10/07(A) Rev Page ...

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