MAX9716ETA-T Maxim Integrated, MAX9716ETA-T Datasheet

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MAX9716ETA-T

Manufacturer Part Number
MAX9716ETA-T
Description
Audio Amplifiers
Manufacturer
Maxim Integrated
Datasheet
1.MAX9717AEBL-T.pdf (21 pages)

Specifications of MAX9716ETA-T

Product
General Purpose Audio Amplifiers
Output Power
1.4 W
Thd Plus Noise
0.02%
Supply Current
4.3 mA
Maximum Power Dissipation
1951 mW
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TDFN-8
Audio Load Resistance
4 Ohms
Minimum Operating Temperature
- 40 C
The MAX9716/MAX9717 audio power amplifiers are ideal
for portable audio devices with internal speakers. A
bridge-tied load (BTL) architecture minimizes external
component count, while providing high-quality audio
reproduction. Both devices deliver 1.4W continuous
power into a 4Ω load with less than 1% Total Harmonic
Distortion (THD) while operating from a single +5V sup-
ply. With an 8Ω load, both devices deliver 1W continuous
power. These devices also deliver 350mW continuous
power into an 8Ω load while operating from a single
+3.0V supply. The devices are available as adjustable
gain amplifiers (MAX9716/MAX9717A) or with internally
fixed gains of 6dB, 9dB, and 12dB (MAX9717B/
MAX9717C/MAX9717D), reducing component count.
A low-power shutdown mode disables the bias generator
and amplifiers, reducing quiescent current consumption
to less than 10nA. These devices feature Maxim’s
industry-leading, comprehensive click-and-pop sup-
pression that reduces audible clicks and pops during
startup and shutdown.
The MAX9717 features a headphone sense input (BTL/SE)
that senses when a headphone is connected to the
device, disables the BTL slave driver, muting the speaker
while driving the headphone as a single-ended load.
The MAX9716 is pin compatible with the LM4890 and is
available in 9-bump UCSP™, 8-pin TDFN (3mm x
3mm), and 8-pin µMAX
available in 9-bump UCSP, 8-pin TDFN, and 8-pin
µMAX packages. Both devices operate over the -40°C
to +85°C extended temperature range.
19-3146; Rev 3; 3/12
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 Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.
Mobile Phones
PDAs
________________________________________________________________ Maxim Integrated Products
IN-
General Description
®
packages. The MAX9717 is
Portable Devices
BIAS
SINGLE SUPPLY
2.7V TO 5.5V
Applications
Low-Cost, Mono, 1.4W BTL Audio
MAX9716
o 2.7V to 5.5V Single-Supply Operation
o 1.4W into 4Ω at 1% THD+N
o 10nA Low-Power Shutdown Mode
o 73dB PSRR at 1kHz
o No Audible Clicks or Pops at Power-Up/Down
o Internal Fixed Gain to Reduce Component Count
o Adjustable Gain Option (MAX9716/MAX9717A)
o BTL /SE Input Senses when Headphones are
o Pin Compatible with LM4890 (MAX9716)
o Pin Compatible with TPA711 (MAX9717A)
o Available in Compact, Thermally Enhanced µMAX
Ordering Information continued at end of data sheet.
Pin Configurations and Selector Guide appear at end of data
sheet.
* EP = Exposed pad.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
G45 indicates protective die coating.
/V denotes automotive qualified part.
IN-
MAX9716ETA+T
MAX9716EBL+TG45
MAX9716EUA
MAX9716EUA/V+
(MAX9717B/C/D)
Connected (MAX9717)
and TDFN (3mm x 3mm) Packages
PART
BIAS
SINGLE SUPPLY
2.7V TO 5.5V
MAX9717B/C/D
Simplified Block Diagrams
Power Amplifiers
BTL/SE
-40°C to +85°C 8 TDFN-EP*
-40°C to +85°C 3 x 3 UCSP
-40°C to +85°C 8 µMAX-EP*
-40°C to +85°C 8 µMAX-EP*
TEMP RANGE
Ordering Information
V
CC
PIN-
PACKAGE
Features
GAIN
(dB)
Adj.
Adj.
Adj.
Adj.
1

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MAX9716ETA-T Summary of contents

Page 1

... BTL /SE Input Senses when Headphones are Connected (MAX9717) o Pin Compatible with LM4890 (MAX9716) o Pin Compatible with TPA711 (MAX9717A) o Available in Compact, Thermally Enhanced µMAX and TDFN (3mm x 3mm) Packages PART MAX9716ETA+T MAX9716EBL+TG45 MAX9716EUA MAX9716EUA/ Exposed pad. + Denotes a lead(Pb)-free/RoHS-compliant package. G45 indicates protective die coating. ...

Page 2

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V to GND) ..................................-0.3V to +6V CC Any Other Pin to GND ...............................-0. IN_, BIAS, SHDN, BTL/SE Continuous Current...................20mA OUT_ Short-Circuit Duration to GND or V ...

Page 3

ELECTRICAL CHARACTERISTICS—5V Supply (continued) = 0V, SHDN = 5V GND CC = ∞ connected between OUT+ and OUT-. Typical values are at T BTL/SE = GND (MAX9717_ PARAMETER SYMBOL Output Short-Circuit ...

Page 4

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers ELECTRICAL CHARACTERISTICS—3V Supply (continued) = 0V, SHDN = 3V GND ∞ connected between OUT+ and OUT-. Typical values are at T BTL/SE = ...

Page 5

THD+N measurement bandwidth = 22Hz to 22kHz, BTL mode TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY 100 8Ω 6dB 0.1 OUTPUT POWER = ...

Page 6

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers (V = 5V, THD+N measurement bandwidth = 22Hz to 22kHz, BTL mode TOTAL HARMONIC DISTORTION PLUS NOISE vs. OUTPUT POWER 100 8Ω ...

Page 7

THD+N measurement bandwidth = 22Hz to 22kHz, BTL mode OUTPUT POWER vs. SUPPLY VOLTAGE 1 8Ω 1kHz 1 6dB V 1.2 THD+N = 10% 0.9 0.6 THD+N = ...

Page 8

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers (V = 5V, THD+N measurement bandwidth = 22Hz to 22kHz, BTL mode GAIN AND PHASE vs. FREQUENCY 120 A = 60dB -30 -60 -90 -120 10 ...

Page 9

PIN BUMP TDFN/µMAX UCSP MAX9716 MAX9717 MAX9716 MAX9717 — B1 — 3 — — — — Detailed ...

Page 10

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers +1 -1 Figure 1. Bridge-Tied Load Configuration Applications Information The MAX9716/MAX9717 are designed to drive a load differentially, a configuration referred to as bridge-tied load or BTL. The BTL configuration (Figure 1) offers ...

Page 11

BIAS IN+ MAX9716 AUDIO IN- INPUT R Figure 2. Setting the MAX9716/MAX9717A Gain Gain-Setting Resistors External feedback resistors set the gain of the MAX9716 and MAX9717A. Resistors R Figure 2 ) set the gain of the ...

Page 12

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers 220pF 0.33µF 20kΩ AUDIO INPUT 0.33µF 20kΩ AUDIO INPUT VALUES SHOWN FOR 0dB GAIN. Figure 4. MAX9716 Differential Input BIAS is the output of the ...

Page 13

UCSP Applications Information For the latest application details on UCSP construction, dimensions, tape carrier information, printed circuit board techniques, bump-pad layout, and recommended reflow temperature profile, as well as the latest information on reliability testing results, refer to the application ...

Page 14

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers TOP VIEW SHDN 1 BIAS 2 MAX9716 IN+ 3 IN- 4 µMAX MAX9716 TOP VIEW 1 (BUMPS ON BOTTOM) A IN- B GND C BIAS UCSP (1.5mm x 1.5mm) SHDN 1 BIAS 2 ...

Page 15

Low-Cost, Mono, 1.4W BTL Audio Functional Diagrams/Typical Operating Circuits 1µF BIAS C BIAS 1µF IN 0.33µF 20kΩ AUDIO IN- INPUT VALUES SHOWN FOR 12dB GAIN 1µ BIAS C BIAS 1µ ...

Page 16

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers Functional Diagrams/Typical Operating Circuits (continued) 1µF BIAS C BIAS 1µ 0.33µF 20kΩ AUDIO IN- INPUT 16 ______________________________________________________________________________________ CLICKLESS/POPLESS SHDN SHUTDOWN CONTROL OUT- 20kΩ IN+ 20kΩ ...

Page 17

For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- ...

Page 18

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a ...

Page 19

For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- ...

Page 20

Low-Cost, Mono, 1.4W BTL Audio Power Amplifiers For the latest package outline information and land patterns (footprints www.maxim-ic.com/packages. Note that a "+", "#", or "-" in the package code indicates RoHS status only. Package drawings may show a ...

Page 21

... Maxim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 21 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2012 Maxim Integrated Products Low-Cost, Mono, 1 ...

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