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參數(shù)資料
| 型號： | DS4420N+T&R |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/10頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO MONO AB DIFF 14TDFN |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 放大器類型： | 音頻 |
| 電路數(shù)： | 1 |
| 輸出類型： | 差分 |
| 電流 - 電源： | 1.7mA |
| 電流 - 輸出 / 通道： | 95mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 5.5 V |
| 工作溫度： | -20°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-WFDFN 裸露焊盤 |
| 供應商設(shè)備封裝： | 14-TDFN-EP（3x3） |
| 包裝： | 帶卷 (TR) |
General Description
The DS4420 is a fully differential, programmable-gain
amplifier for audio applications. It features a -35dB to
+25dB gain range controlled by an I2C interface and it
is optimized to drive loads as low as 50Ω. The gain is
adjustable in 3dB increments across the entire range.
Three address inputs, used to select the I2C slave
address, enable up to eight devices on a common bus.
The product operates from a single 5V supply over a
-20°C to +70°C temperature range. It is offered in a
3mm x 3mm TDFN package.
Applications
Telephone Headsets
Audio Volume Control
Microphone Gain Control
Features
o Differential Inputs and Outputs
o -35dB to +25dB Adjustable Gain
o Low Output Noise
o Low-Distortion Driving into a 50Ω Load
o 3dB Gain Steps Programmed through I2C Interface
o 5V Single Supply
o 20kHz Bandwidth for All Gain Settings
o Small 3mm x 3mm x 0.8mm TDFN Package
o Up to Eight DS4420s can be Placed on the Same
I2C Bus
DS4420
I2C Programmable-Gain Amplifier
for Audio Applications
______________________________________________
Maxim Integrated Products
1
Rev 0; 9/06
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.
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
DS4420+
-20°C to +70°C
14 TDFN-EP*
+
Denotes lead-free package.
*
EP = Exposed paddle.
DS4420
-35dB
TO +25dB
GAIN
A2
A1
A0
SDA
SCL
IN+
OUT+
OUT-
IN-
GND
VCC
AGND AVCC
AUDIO
AMPLIFIER
AUDIO
SOURCE
MICROPR0CESSOR-
CONTROLLED GAIN
I2C INTERFACE
Typical Operating Circuit
TDFN
(3mm x 3mm x 0.8mm)
TOP VIEW
2
4
5
13
11
10
OUT+
AGND
N.C.
A1
SCL
SDA
1
+
14
AVCC
OUT-
A2
3
12
A0
6
9
IN-
VCC
7
8
IN+
GND
DS4420
Pin Configuration
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