MAX4410EVKIT [MAXIM]
Evaluation Kit for the MAX4410 ; 评估板MAX4410\n
| 型号： | MAX4410EVKIT |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | Evaluation Kit for the MAX4410
|
| 文件： | 总4页 (文件大小：121K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-2500; Rev. 0; 7/02
MAX4410 Evaluation Kit
General Description
Features
ꢀ No DC-Blocking Capacitors Required
ꢀ 1.8V to 3.6V Single-Supply Operation
ꢀ 80mW Per Channel into 16
The MAX4410 evaluation kit (EV kit) is a fully assembled
and tested surface-mount circuit board that evaluates the
MAX4410 DirectDrive stereo headphone amplifier.
DirectDrive eliminates the two large DC-blocking capaci-
tors typically required between the output of the amplifier
and the headphones. The MAX4410 EV kit is designed to
be driven by the lineout of a CD player or directly con-
nected to any stereo audio source. The MAX4410 EV kit
includes RCA jacks on the input and a 3.5mm headphone
jack on the output to facilitate easy connections to the cir-
cuit board.
ꢀ 0.003% THD + N at 1kHz
ꢀ Low-Profile (1.2mm max) Design
ꢀ Ultra-Compact Solution
ꢀ Fully Assembled and Tested Surface-Mount
Board
ꢀ Independent Left/Right Shutdown Controls
Ordering Information
PART
TEMP RANGE
IC PACKAGE
MAX4410EVKIT
0°C to +70°C
14 TSSOP
Component Suppliers
SUPPLIER
PHONE
FAX
WEBSITE
www.avxcorp.com
AVX
843-946-0238
800-348-2496
847-803-6100
843-626-3123
847-925-0899
847-390-4405
Taiyo Yuden
TDK
www.t-yuden.com
www.component.tdk.com
Note: Please indicate that you are using the MAX4410 when contacting these component suppliers.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
A1
1
MAX4410EBE (16-pin UCSP)
Phono jack (side-entry PC board
mount) white
J1
J2
1
1
1.0µF 20ꢀ, 10V tantalum capacitors
(R-Case)
AVX TAJR105M010R
C1, C2
2
Phono jack (side-entry PC board
mount) red
J3
JU1, JU2
R1–R4
None
None
None
None
U1
1
2
4
2
1
1
1
1
Stereo headphone jack (3.5mm dia.)
3-pin headers
100pF 5ꢀ, 50V C0G ceramic
capacitors (0402)
TDK C1005C0G1H101J
C3, C4
2
3
10k
1ꢀ resistors (0402)
Shunts
2.2µF 10ꢀ, 6.3V X5R ceramic
capacitors (0603)
TDK C1608X5R0J225K
MAX4410 EV kit PC board
MAX4410 EV kit data sheet
MAX4410 data sheet
C5, C6, C7
Taiyo Yuden JMK107BJ225KA
MAX4410EUD (14-pin TSSOP)
10µF 20ꢀ, 6.3V X5R ceramic
capacitor (0805)
TDK C2012X5R0J106M
Taiyo Yuden JMK212BJ106MG
Note: A1 is for display purposes only (not a functional component).
C8
1
________________________________________________________________ Maxim Integrated Products
1
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.
MAX4410 Evaluation Kit
Quick Start
Table 1. Shutdown Selection
Recommended Equipment
• One pair of 16 or 32 headphones
SHUNT
POSITION
JUMPER
DESCRIPTION
1-2
2-3
1-2
2-3
Left channel enabled
Left channel disabled
Right channel enabled
Right channel disabled
• One variable DC power supply capable of supplying
JU1
between 1.8V and 3.6V at 300mA
• One stereo audio source
JU2
Procedure
The MAX4410 EV kit is fully assembled and tested. Follow
the steps below to verify board operation. Do not turn on
the power supply until all connections are completed:
1) Plug the headphones into the 3.5mm headphone
jack.
JU1 JU2
1
2
3
1
2
3
2) Ensure that the stereo audio source is turned off.
3) Connect the disabled stereo audio source through
the RCA phono jacks.
4) Ensure that shunts JU1 and JU2 are installed in posi-
tion 1-2.
5) Connect the 1.8V to 3.6V DC power supply to the
VCC and GND pads.
Figure 1. Simultaneous Shutdown Control
Layout Considerations
6) Turn on the DC power supply.
7) Enable the stereo audio source.
To optimize the audio performance of the MAX4410, it
is important to follow these layout guidelines. The
MAX4410 EV kit uses two ground planes to minimize
switching noise from the charge pump coupling into the
audio signal. The two planes are star-connected at one
point (GND pad). Capacitors C5, C6, and C7 should be
placed close to the IC and connected with wide traces.
Short, wide traces should be used to connect the
power pins of the IC to the power supply.
Detailed Description
The MAX4410 EV kit is a stereo, single-supply head-
phone amplifier. The MAX4410 EV kit is designed to be
driven by the stereo lineout of a CD player or directly
connected to any stereo audio source. The input
impedance is 10k . The -3dB corner frequencies are
approximately 16Hz and 159kHz and are dependent on
components R1–R4 and C1–C4. The MAX4410 EV kit
has a gain of -1 and can be powered with a 1.8V to
3.6V supply.
Shutdown Control
The MAX4410 EV kit provides two shutdown pins
(SHDNL, SHDNR) to disable the outputs. Jumpers JU1
and JU2 control the left and right channels, respectively
(see Table 1 for shutdown shunt positions).
Shorting pin 2 of JU1 to pin 2 of JU2 allows the user to
control both channels’ shutdown pins simultaneously by
driving the provided user pad SHDN with an external
source (see Figure 1 for shunt configuration). SHDNL
and SHDNR are CMOS logic-level inputs.
2
_______________________________________________________________________________________
MAX4410 Evaluation Kit
TP3
OUTPUT
J3
3
1
2
TP1
TP2
8
11
OUTL
OUTR
U1
R4
C4
R3
10k
1%
C1
1 F
10V
C3
100pF
C2
1 F
10V
10k
1%
MAX4410
LEFT IN
J1
100pF
RIGHT IN
J2
2
1
10
4
13
14
2
1
INL
INR
R2
10k
1%
R1
10k
1%
VCC
VCC
PGND
SGND
1
2
1
2
SHDN
JU2
JU1
1
12
SHDNL
SHDNR
3
3
9
2
7
6
SV
SS
SV
DD
VCC
GND
PV
SS
PV
DD
C7*
2.2 F
C8
10 F
C5
2.2 F
C1N
C1P
3
5
C6*
2.2 F
*C6 AND C7 CAN BE REDUCED IN SIZE. REFER TO THE MAX4410 DATA SHEET FOR DETAILS.
Figure 2. MAX4410 EV Kit Schematic
_______________________________________________________________________________________
3
MAX4410 Evaluation Kit
Figure 3. MAX4410 EV Kit Component Placement Guide—
Component Side
Figure 4. MAX4410 EV Kit PC Board Layout—Component Side
Figure 5. MAX4410 EV Kit PC Board Layout—Solder Side
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.
4 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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