參數資料
型號: MAX9765ETJ+
廠商: Maxim Integrated Products
文件頁數: 14/33頁
文件大?。?/td> 0K
描述: IC AMP AUDIO .75W STER AB 32TQFN
標準包裝: 60
類型: AB 類
輸出類型: 2-通道(立體聲)帶立體聲耳機
在某負載時最大輸出功率 x 通道數量: 750mW x 2 @ 4 歐姆; 65mW x 2 @ 16 歐姆
電源電壓: 2.7 V ~ 5.5 V
特點: 消除爆音,I²C,輸入多路復用器,麥克風,靜音,短路和熱保護,關機
安裝類型: 表面貼裝
供應商設備封裝: 32-TQFN-EP(5x5)
封裝/外殼: 32-WFQFN 裸露焊盤
包裝: 管件
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
______________________________________________________________________________________
21
HPS_EN = 1. A logic high selects speaker mode, a
logic low selects headphone mode. Bits 5 to 7 (MG0-2)
control the gain of the microphone amplifiers (Table 5).
Read Data Format
In read mode (R/W = 1), the MAX9765/MAX9766 write
the contents of the selected register to the bus. The
direction of the data flow reverses following the
address acknowledge by the MAX9765/MAX9766. The
master device reads the contents of all registers,
including the read-only status register. Table 7 shows
the status register format. Figure 7 shows an example
read data sequence.
REGISTER
ADDRESS
0000 0010
BIT
NAME
VALUE
DESCRIPTION
0*
7
RESET
1
Reset device
0*
6
RESET
1
Reset device
0*
5
RESET
1
Reset device
0*
4
RESET
1
Reset device
0*
3
RESET
1
Reset device
0*
2
RESET
1
Reset device
1
X
Don’t Care
0*
Normal operation
0
SHDN
1
Shutdown
Table 4. SHDN Register Format
*Default state.
REGISTER
ADDRESS
0000 0011
BIT
NAME
VALUE
DESCRIPTION
7
MG2
6
MG1
5
MG0
Microphone amplifier
gain set; 3-bit code sets
the gain of the
microphone amplifiers
(Table 6)
0*
Speaker mode selected
4
SPKR/HP
1
Headphone mode
selected
0*
Differential input selected
3
INT/EXT
1
Single-ended input
selected
0*
Automatic headphone
detection enabled
2
HPS_D
1
Automatic headphone
detection disabled
(HPS ignored)
0*
Input 1 selected
1
IN1/IN2
1
Input 2 selected
0X
Don’t Care
Table 5. Control Register Format
S
ADDRESS
7 BITS
8 BITS
1
WR
ACK
COMMAND
ACK
DATA
ACK
P
I2C SLAVE ADDRESS.
SELECTS DEVICE.
REGISTER ADDRESS.
SELECTS REGISTER TO BE
WRITTEN TO.
REGISTER DATA.
I2C SLAVE ADDRESS.
SELECTS DEVICE.
DATA FROM
SELECTED REGISTER.
S
ADDRESS
7 BITS
8 BITS
1
WR
ACK
COMMAND
ACK
DATA
P
I2C SLAVE ADDRESS.
SELECTS DEVICE.
REGISTER ADDRESS.
SELECTS REGISTER
TO BE READ.
S
ADDRESS
7 BITS
WR
ACK
Figure 7. Write/Read Data Format Example
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參數描述
MAX9765ETJ+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9765ETJ+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9765ETJ-T 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9765EVKIT 功能描述:放大器 IC 開發(fā)工具 RoHS:否 制造商:International Rectifier 產品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V
MAX9766ETJ 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產品:General Purpose Audio Amplifiers 輸出類型:Digital 輸出功率: THD + 噪聲: 工作電源電壓:3.3 V 電源電流: 最大功率耗散: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel