MAX13331 Maxim Integrated Products, MAX13331 Datasheet
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MAX13331
Manufacturer Part Number
MAX13331
Description
(MAX13330 / MAX13331) Automotive DirectDrive Headphone Amplifiers
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX13331.pdf
(15 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MAX13331GEE/V+
Manufacturer:
MAXIM/美信
Quantity:
20 000
Company:
Part Number:
MAX13331GEE/V+T
Manufacturer:
MAXIM
Quantity:
55
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The MAX13330/MAX13331 stereo headphone amplifiers
are designed for automotive applications requiring out-
put short-circuit and ESD protection to battery/ground
with diagnostics. These devices use Maxim’s unique,
patented
ground-referenced output from a single supply, elimi-
nating the need for large DC-blocking capacitors, sav-
ing board space and component height. The gain of the
amplifier is set internally (-1.5V/V) on the MAX13330 or
adjusted externally with resistors on the MAX13331.
The MAX13330/MAX13331 deliver 120mW per channel
into a 16Ω load or 135mW into a 32Ω load and have a
low 0.01% THD+N. Low output impedance and the effi-
cient integrated charge pump allows the device to drive
loads as low as 8Ω, enabling the use of small loud-
speakers. An 80dB at 217Hz PSRR allows these
devices to operate from noisy digital supplies without
an additional linear regulator. These devices include
±15kV Human Body Model ESD protection and short-
circuit protection up to +45V at the headphone outputs.
Comprehensive click-and-pop circuitry suppresses
audible clicks and pops on startup and shutdown. A
low-power shutdown mode reduces the supply current
to 3µA (typ).
The MAX13330/MAX13331 are specified from -40°C to
+105°C AEC-Q100 Level 2 automotive temperature
range and are available in a 16-pin QSOP package.
19-4341; Rev 0; 10/08
DirectDrive 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.
U.S. Patent #7,061,327
RIGHT-CHANNEL
LEFT-CHANNEL
Automotive DirectDrive Headphone Amplifiers
AUDIO IN
AUDIO IN
SHDN
Automotive Entertainment Systems
Automotive Rear Seat Entertainment Systems
†
DirectDrive
Simplified Block Diagram
MAX13330
________________________________________________________________ Maxim Integrated Products
with Output Protection and Diagnostics
General Description
®
CLICK-AND-POP
SUPPRESSION
architecture to produce a
Applications
DIAGNOSTICS
OUTPUT
♦ 4V to 5.5V Single-Supply Operation
♦ 2MHz Charge Pump Prevents AM Radio
♦ Ground-Referenced Outputs Eliminate Bulky DC-
♦ Short-to-Ground and Battery (V
♦ Short-Circuit Diagnostic Output
♦ Adjustable Gain (MAX13331) or Fixed -1.5V/V Gain
♦ 135mW per Channel into 32Ω at 1% THD+N
♦ Low 0.01% THD+N
♦ Integrated Click-and-Pop Suppression
♦ High PSRR Eliminates LDO
♦ No Degradation of Low-Frequency Response Due
♦ ±15kV Human Body Model ESD Protection for
+ Denotes a lead-free/RoHS-compliant package.
T = Tape-and-reel.
/V denotes an automotive qualified part.
Typical Application Circuits appear at end of data sheet.
M A X1 3 3 3 0 GE E /V + T
M A X1 3 3 3 1 GE E /V + T
Interference
Blocking Capacitors
Output Protection, Load Dump Protection
(MAX13330)
to Output Capacitors
Output Pins
PART
CPVDD
SGND
SGND
SHDN
C1P
V
INR
INL
DD
1
2
3
4
5
6
7
8
E xter nal l y
-1.5V/V
+
GAIN
Ordering Information
Set
MAX13330
MAX13331
QSOP
Pin Configuration
- 40°C to + 105°C
- 40°C to + 105°C
RANGE
TEMP
BAT
16
15
14
13
12
11
10
9
OUTL
PGND
V
OUTR
DIAG
CPVSS
C1N
PGND
up to +45V)
SS
Features
PACKAGE
16 QSOP
16 QSOP
PIN-
1