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參數(shù)資料
| 型號(hào)： | MAX9875ERP+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 16/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AUDIO SUBSYSTEM 20UCSP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | DirectDrive® |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道），帶立體聲耳機(jī) |
| 在某負(fù)載時(shí)最大輸出功率 x 通道數(shù)量： | 825mW x 1 @ 4 歐姆; 53mW x 2 @ 16 歐姆 |
| 電源電壓： | 2.7 V ~ 5.25 V |
| 特點(diǎn)： | 消除爆音，差分輸入，I²C，靜音，短路和熱保護(hù)，關(guān)機(jī)，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 20-UCSP |
| 封裝/外殼： | 20-WFBGA，CSPBGA |
| 包裝： | 帶卷 (TR) |
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MAX9875
Low RF Susceptibility, Mono Audio
Subsystem with DirectDrive Headphone Amplifier
______________________________________________________________________________________
23
SCL
SDA
START
CONDITION
STOP
CONDITION
REPEATED
START CONDITION
START
CONDITION
tHD:STA
tSU:STA
tBUF
tSU:STO
tLOW
tSU:DAT
tHD:DAT
tHIGH
tR
tF
Figure 6. 2-Wire Interface Timing Diagram
SCL
SDA
SSr
P
Figure 7. START, STOP, and REPEATED START Conditions
SMBus is a trademark of Intel Corp.
I2C Interface Specification
The MAX9875 features an I2C/SMBus-compatible, 2-
wire serial interface consisting of a serial-data line
(SDA) and a serial-clock line (SCL). SDA and SCL facil-
itate communication between the MAX9875 and the
master at clock rates up to 400kHz. Figure 6 shows the
2-wire interface timing diagram. The master generates
SCL and initiates data transfer on the bus. The master
device writes data to the MAX9875 by transmitting the
proper slave address followed by the register address
and then the data word. Each transmit sequence is
framed by a START (S) or REPEATED START (Sr) con-
dition and a STOP (P) condition. Each word transmitted
to the MAX9875 is 8 bits long and is followed by an
acknowledge clock pulse. A master reading data from
the MAX9875 transmits the proper slave address fol-
lowed by a series of nine SCL pulses. The MAX9875
transmits data on SDA in sync with the master-generat-
ed SCL pulses. The master acknowledges receipt of
each byte of data. Each read sequence is framed by a
START or REPEATED START condition, a not acknowl-
edge, and a STOP condition. SDA operates as both an
input and an open-drain output. A pullup resistor, typi-
cally greater than 500, is required on SDA. SCL oper-
ates only as an input. A pullup resistor, typically greater
than 500, is required on SCL if there are multiple mas-
ters on the bus, or if the single master has an open-
drain SCL output. Series resistors in line with SDA and
SCL are optional. Series resistors protect the digital
inputs of the MAX9875 from high voltage spikes on the
bus lines, and minimize crosstalk and undershoot of the
bus signals.
Bit Transfer
One data bit is transferred during each SCL cycle. The
data on SDA must remain stable during the high period
of the SCL pulse. Changes in SDA while SCL is high
are control signals (see the
START and STOP
Conditions section).
START and STOP Conditions
SDA and SCL idle high when the bus is not in use. A
master initiates communication by issuing a START con-
dition. A START condition is a high-to-low transition on
SDA with SCL high. A STOP condition is a low-to-high
transition on SDA while SCL is high (Figure 7). A START
condition from the master signals the beginning of a
transmission to the MAX9875. The master terminates
transmission, and frees the bus, by issuing a STOP con-
dition. The bus remains active if a REPEATED START
condition is generated instead of a STOP condition.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9877AERP+T | 功能描述:音頻放大器 Audio Subsystem w/DirectDrive RoHS:否 制造商:STMicroelectronics 產(chǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9877AEWP+G45 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9877AEWP+TG45 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9877EBP+G45 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX9877EBP+TG45 | 制造商:Maxim Integrated Products 功能描述: |
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