參數(shù)資料
型號(hào)： MAX9767ETJ+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 11/33頁(yè)
文件大小： 0K
描述： IC AMP AUDIO .75W STER AB 32TQFN
標(biāo)準(zhǔn)包裝： 60
類(lèi)型： AB 類(lèi)
輸出類(lèi)型： 2 通道（立體聲）
在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： 750mW x 2 @ 4 歐姆
電源電壓： 2.7 V ~ 5.5 V
特點(diǎn)： 消除爆音，麥克風(fēng)，靜音，短路保護(hù)和熱保護(hù)，關(guān)機(jī)
安裝類(lèi)型： 表面貼裝
供應(yīng)商設(shè)備封裝： 32-TQFN-EP（5x5）
封裝/外殼： 32-WFQFN 裸露焊盤(pán)
包裝： 管件
MAX9765/MAX9766/MAX9767
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
______________________________________________________________________________________
19
condition, the bus remains active. When a STOP con-
dition or incorrect address is detected, the
MAX9765/MAX9766 internally disconnects SCL from
the serial interface until the next START condition, mini-
mizing digital noise and feedthrough.
Early STOP Conditions
The MAX9765/MAX9766 recognize a STOP condition at
any point during the transmission except if a STOP con-
dition occurs in the same high pulse as a START condi-
tion (Figure 5). This condition is not a legal I2C format;
at least one clock pulse must separate any START and
STOP conditions.
REPEATED START Conditions
A REPEATED START (Sr) condition may indicate a
change of data direction on the bus. Such a change
occurs when a command word is required to initiate a
read operation. Sr may also be used when the bus
master is writing to several I2C devices and does not
want to relinquish control of the bus. The MAX9765/
MAX9766 serial interface supports continuous write
operations with or without an Sr condition separating
them. Continuous read operations require Sr conditions
because of the change in direction of data flow.
Acknowledge Bit (ACK)
The acknowledge bit (ACK) is the ninth bit attached to
any 8-bit data word. The receiving device always gen-
erates ACK. The MAX9765/MAX9766 generate an ACK
when receiving an address or data by pulling SDA low
during the ninth clock period. When transmitting data,
the MAX9765/MAX9766 wait for the receiving device to
generate an ACK. Monitoring ACK allows for detection
of unsuccessful data transfers. An unsuccessful data
transfer occurs if a receiving device is busy or if a sys-
tem fault has occurred. In the event of an unsuccessful
data transfer, the bus master should reattempt commu-
nication at a later time.
Slave Address
The bus master initiates communication with a slave
device by issuing a START condition followed by a 7-bit
slave address (Figure 6). When idle, the MAX9765/
MAX9766 wait for a START condition followed by its
slave address. The serial interface compares each
address value bit-by-bit, allowing the interface to power
down immediately if an incorrect address is detected.
The LSB of the address word is the Read/Write (R/W)
bit. R/W indicates whether the master is writing to or
reading from the MAX9765/MAX9766 (R/W = 0 selects
the write condition, R/W = 1 selects the read condition).
After receiving the proper address, the MAX9765/
MAX9766 issue an ACK by pulling SDA low for one
clock cycle.
The MAX9765 has a factory/user-programmed address
(Table 2). The MAX9766 has a factory-programmed
address: 1001011.
SCL
SDA
START
CONDITION
STOP
CONDITION
REPEATED
START
CONDITION
START
CONDITION
tHD, STA
tSP
tBUF
tSU, STO
tLOW
tSU, DAT
tHD, DAT
tHIGH
tR
tF
Figure 3. 2-Wire Serial Interface Timing Diagram
SCL
SDA
SSr
P
Figure 4. START/STOP Conditions
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9767ETJ+ 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9767ETJ+T 功能描述:音頻放大器 Integrated Circuits (ICs) RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9767ETJ-T 功能描述:音頻放大器 RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9768BETG+ 功能描述:音頻放大器 10W Mono Class D Speaker RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
MAX9768BETG+T 功能描述:音頻放大器 10W Mono Class D Speaker RoHS:否 制造商:STMicroelectronics 產(chǎn)品:General Purpose Audio Amplifiers 輸出類(lèi)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel
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