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参数资料
| 型号： | DS4420N+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 8/10页 |
| 文件大小： | 0K |
| 描述： | IC AMP AUDIO MONO AB DIFF 14TDFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 放大器类型： | 音频 |
| 电路数： | 1 |
| 输出类型： | 差分 |
| 电流 - 电源： | 1.7mA |
| 电流 - 输出 / 通道： | 95mA |
| 电压 - 电源，单路/双路(±)： | 4.5 V ~ 5.5 V |
| 工作温度： | -20°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 14-WFDFN 裸露焊盘 |
| 供应商设备封装： | 14-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
DS4420
I2C Programmable-Gain Amplifier
for Audio Applications
_____________________________________________________________________
7
Slave Address Byte and Address Pins
The slave address byte consists of a 7-bit slave
address plus a R/W bit (see Figure 2). The DS4420’s
slave address is determined by the state of the A0, A1,
and A2 address pins. These pins allow up to eight
DS4420s to reside on the same I2C bus. Address pins
connected to GND result in a ‘0’ in the corresponding
bit position in the slave address. Conversely, address
pins connected to VCC result in a ‘1’ in the correspond-
ing bit positions. For example, the DS4420’s slave
address byte is A0h when A0, A1, and A2 pins are
grounded. I2C communication is described in detail in
the
I2C Serial Interface Description section.
Figure 1. Control Register Description
Control Register (F8h)
Power-Up Default:
1000 0000 b
F8h
Standby
x
Mute
Gain Setting[4:0]
bit 7
bit 4
bit 3
bit 2
bit 1
bit 0
bit 7
Standby: Places the DS4420 in standby mode.
0 = Normal operation.
1 = Places the DS4420 in standby mode. (Power-up default.)
bit 6
Don’t care.
bit 5
Mute: Mutes the amplifier output, regardless of the current gain setting.
0 = Normal operation. (Power-up default.)
1 = Mutes the amplifier output.
bit 4:0
Gain Setting: Five-bit gain setting. The power-up default is setting 00h.
GAIN
SETTING
(hex)
GAIN
(dB)
GAIN
SETTING
(hex)
GAIN
(dB)
00h
-35
0Bh
-2
01h
-32
0Ch
+1
02h
-29
0Dh
+4
03h
-26
0Eh
+7
04h
-23
0Fh
+10
05h
-20
10h
+13
06h
-17
11h
+16
07h
-14
12h
+19
08h
-11
13h
+22
09h
-8
14h
+25
0Ah
-5
15h to 1Fh
Illegal
*THE SLAVE ADDRESS IS DETERMINED BY ADDRESS PINS A0, A1, AND A2.
1
MSB
SLAVE
ADDRESS*
LSB
01
0
A2
A1
A0
R/W
READ/WRITE
BIT
Figure 2. DS4420 Slave Address Byte
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS4421FP000 | 制造商:Thomas & Betts 功能描述:400A,CON,3P4W,MG,421,3P440V |
| DS4421MP000 | 制造商:Thomas & Betts 功能描述:400A,PLG,3P4W,MG,421,3P440V |
| DS4421MR000 | 制造商:Thomas & Betts 功能描述:400A,NLT,3P4W,MG,421,3P440V |
| DS4422 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Two-/Four-Channel, I2C, 7-Bit Sink/Source Current DAC |
| DS4422_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Two-/Four-Channel, I2C, 7-Bit Sink/Source Current DAC |
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