MAX9700BEBC-T Maxim Integrated, MAX9700BEBC-T Datasheet

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MAX9700BEBC-T

Manufacturer Part Number
MAX9700BEBC-T
Description
Audio Amplifiers
Manufacturer
Maxim Integrated
Datasheet

Specifications of MAX9700BEBC-T

Output Type
1-Channel Mono
Output Power
1.6 W x 1 at 6 Ohms
Thd Plus Noise
0.01 % at 8 Ohms at 125 mW
Operating Supply Voltage
3 V, 5 V
Maximum Power Dissipation
484 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
UCSP
Audio Load Resistance
16 Ohms
Common Mode Rejection Ratio (min)
72 dB (Typ)
Input Signal Type
Differential
Minimum Operating Temperature
- 40 C
Output Signal Type
Differential
Supply Type
Single
Supply Voltage - Max
5.5 V
Supply Voltage - Min
2.5 V
The MAX9700 mono class D audio power amplifier pro-
vides class AB amplifier performance with class D effi-
ciency, conserving board space and extending battery
life. Using a class D architecture, the MAX9700 delivers
1.2W into an 8Ω load while offering efficiencies above
90%. A low-EMI modulation scheme renders the tradi-
tional class D output filter unnecessary.
The MAX9700 offers two modulation schemes: a fixed-
frequency (FFM) mode, and a spread-spectrum (SSM)
mode that reduces EMI-radiated emissions due to the
modulation frequency. Furthermore, the MAX9700 oscil-
lator can be synchronized to an external clock through
the SYNC input, allowing the switching frequency to be
user defined. The SYNC input also allows multiple
MAX9700s to be cascaded and frequency locked, mini-
mizing interference due to clock intermodulation. The
device utilizes a fully differential architecture, a full-
bridged output, and comprehensive click-and-pop sup-
pression. The gain of the MAX9700 is set internally
(MAX9700A: 6dB, MAX9700B: 12dB, MAX9700C:
15.6dB, MAX9700D: 20dB), further reducing external
component count.
The MAX9700 features high 72dB PSRR, a low 0.01%
THD+N, and SNR in excess of 90dB. Short-circuit and
thermal-overload protection prevent the device from
damage during a fault condition. The MAX9700 is avail-
able in 10-pin TDFN (3mm
µMAX
packages. The MAX9700 is specified over the extended
-40°C to +85°C temperature range.
19-3030; Rev 2; 10/08
UCSP is a trademark of Maxim Integrated Products, Inc.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Cellular Phones
PDAs
DIFFERENTIAL
AUDIO INPUT
®
, and 12-bump UCSP™ (1.5mm
INPUT
SYNC
________________________________________________________________ Maxim Integrated Products
OSCILLATOR
General Description
V
DD
AND H-BRIDGE
MODULATOR
3mm
Block Diagram
MAX9700
MP3 Players
Portable Audio
Applications
0.8mm), 10-pin
2mm
0.6mm)
1.2W, Low-EMI, Filterless,
Class D Audio Amplifier
♦ Filterless Amplifier Passes FCC Radiated
♦ Unique Spread-Spectrum Mode Offers 5dB
♦ Optional External SYNC Input
♦ Simple Master-Slave Setup for Stereo Operation
♦ 94% Efficiency
♦ 1.2W into 8Ω
♦ Low 0.01% THD+N
♦ High PSRR (72dB at 217Hz)
♦ Integrated Click-and-Pop Suppression
♦ Low Quiescent Current (4mA)
♦ Low-Power Shutdown Mode (0.1µA)
♦ Short-Circuit and Thermal-Overload Protection
♦ Available in Thermally Efficient, Space-Saving
*EP = Exposed pad.
Ordering Information continued and Selector Guide appears
at end of data sheet.
MAX9700AETB
MAX9700AEUB
MAX9700AEBC-T
MAX9700BETB
MAX9700BEUB
MAX9700BEBC-T
Pin Configurations continued at end of data sheet.
Emissions Standards with 100mm of Cable
Emissions Improvement Over Conventional
Methods
Packages
10-Pin TDFN (3mm x 3mm x 0.8mm)
10-Pin µMAX
12-Bump UCSP (1.5mm x 2mm x 0.6mm)
TOP VIEW
PART
SHDN
GND
V
IN+
IN-
DD
TEMP RANGE
-40
-40
-40
-40
-40
-40
1
2
3
4
5
Ordering Information
o
o
o
o
o
o
TDFN/μMAX
C to +85
C to +85
C to +85
C to +85
C to +85
C to +85
MAX9700
Pin Configurations
o
o
o
o
o
o
C
C
C
C
C
C
PIN-
PACKAGE
10 TDFN-EP*
10 µMAX
12 UCSP
10 TDFN-EP*
10 µMAX
12 UCSP
10
9
8
7
6
PV
OUT-
OUT+
PGND
SYNC
DD
Features
MARK
ACM
TOP
ACI
1

Related parts for MAX9700BEBC-T

MAX9700BEBC-T Summary of contents

Page 1

... MAX9700AEUB MAX9700AEBC-T MAX9700BETB Applications MAX9700BEUB MAX9700BEBC-T *EP = Exposed pad. Ordering Information continued and Selector Guide appears at end of data sheet. TOP VIEW Pin Configurations continued at end of data sheet. Features Ordering Information PIN- TEMP RANGE PACKAGE MARK ...

Page 2

Low-EMI, Filterless, Class D Audio Amplifier ABSOLUTE MAXIMUM RATINGS V to GND.............................................................................. PGND .........................................................................6V DD GND to PGND .......................................................-0.3V to +0.3V All Other Pins to GND.................................-0. Continuous Current Into/Out of PV /PGND/OUT_........±600mA DD Continuous ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 3.3V, V SHDN DD DD GND unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Signal-to-Noise Ratio Oscillator Frequency SYNC Frequency ...

Page 4

Low-EMI, Filterless, Class D Audio Amplifier (V = 3.3V, SYNC = GND (SSM +25°C, unless otherwise noted TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY + 8Ω L 0.1 P ...

Page 5

SYNC = GND (SSM +25°C, unless otherwise noted TOTAL HARMONIC DISTORTION PLUS NOISE vs. COMMON-MODE VOLTAGE 3. 8Ω 1kHz P = 300mW OUT DIFFERENTIAL ...

Page 6

Low-EMI, Filterless, Class D Audio Amplifier (V = 3.3V, SYNC = GND (SSM +25°C, unless otherwise noted GSM POWER-SUPPLY REJECTION V DD MAX9700 OUTPUT 2ms/div f = 217Hz INPUT LOW = 3V INPUT HIGH = ...

Page 7

SYNC = GND (SSM +25°C, unless otherwise noted SUPPLY CURRENT vs. SUPPLY VOLTAGE 6.0 5.5 5 +25°C A 4.5 4.0 3.5 3.0 2.5 3.0 3.5 SUPPLY VOLTAGE (V) 1μF 5 (B2) ...

Page 8

Low-EMI, Filterless, Class D Audio Amplifier PIN BUMP NAME TDFN/µMAX UCSP GND SHDN SYNC 7 B3 PGND 8 A4 OUT OUT ...

Page 9

V IN- V IN+ OUT- OUT+ t ON(MIN OUT+ OUT- Figure 1. MAX9700 Outputs with an Input Signal Applied Table 1. Operating Modes SYNC INPUT GND FFM with f = 1100kHz S UNCONNECTED FFM with f = ...

Page 10

... Idle Mode™ voltage across the speaker, minimizing power consumption. Efficiency of a class D amplifier is attributed to the region of operation of the output stage transistors Idle Mode is a trademark of Maxim Integrated Products. 10 ______________________________________________________________________________________ t t ...

Page 11

FREQUENCY (MHz) Figure 3. MAX9700 EMI Spectrum The MAX9700 has a shutdown mode that reduces power consumption and extends battery life. Driving SHDN ...

Page 12

Low-EMI, Filterless, Class D Audio Amplifier the power conversion of the class D amplifier. For exam- ple, an 8mV DC offset across an 8Ω load results in 1mA extra current consumption in a class AB device. In the class ...

Page 13

V DD 1μ MAX9700 IN+ RIGHT-CHANNEL DIFFERENTIAL AUDIO INPUT IN- SYNC 1μ MAX9700 IN+ LEFT-CHANNEL DIFFERENTIAL AUDIO INPUT IN- SYNC Figure 7. Master-Slave Stereo Configuration TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 100 V = ...

Page 14

... MAX9700 IN+ Figure 10b. Improved Single-Ended Drive of MAX9700 Plus Volume TOP PART MARK MAX9700AETB ACN MAX9700AEUB — MAX9700AEBC-T — MAX9700BETB ACO MAX9700BEUB — MAX9700BEBC-T — MAX9700CETB MAX9700CEUB MAX9700CEBC-T MAX9700DETB MAX9700DEUB MAX9700DEBC-T *EP = Exposed pad. 1μF 22kΩ IN- CW 50kΩ MAX9700 1μF IN+ 22kΩ ...

Page 15

V DD 0.1μF AUX_IN OUT 2.2kΩ OUT BIAS 2.2kΩ MAX4063 0.1μF IN+ IN- 0.1μF μCONTROLLER Pin Configurations (continued) TOP VIEW MAX9700 (BUMP SIDE DOWN SYNC OUT IN+ SHDN PGND PV B IN- GND OUT- ...

Page 16

Low-EMI, Filterless, Class D Audio Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. PACKAGE TYPE 12 UCSP 10 TDFN-EP 10 µMAX 16 ______________________________________________________________________________________ Package Information PACKAGE CODE B12-11 T1033-1 U10-2 PACKAGE OUTLINE, 4x3 UCSP ...

Page 17

For the latest package outline information and land patterns www.maxim-ic.com/packages. ______________________________________________________________________________________ 1.2W, Low-EMI, Filterless, Class D Audio Amplifier Package Information (continued) 17 ...

Page 18

Low-EMI, Filterless, Class D Audio Amplifier For the latest package outline information and land patterns www.maxim-ic.com/packages. COMMON DIMENSIONS SYMBOL MIN. MAX. A 0.70 0.80 D 2.90 3.10 E 2.90 3.10 A1 0.00 0.05 L 0.20 0.40 k ...

Page 19

For the latest package outline information and land patterns www.maxim-ic.com/packages. ______________________________________________________________________________________ 1.2W, Low-EMI, Filterless, Class D Audio Amplifier Package Information (continued) α α 19 ...

Page 20

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 20 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2008 Maxim Integrated Products ...

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