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| 型號： | MAX97002EWP+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 24/37頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AUDIO SUBSYSTEM 20WLP |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 系列： | DirectDrive® |
| 類型： | D 類 |
| 輸出類型： | 1-通道（單聲道），帶立體聲耳機 |
| 在某負載時最大輸出功率 x 通道數(shù)量： | 920mW x 1 @ 8 歐姆; 37mW x 2 @ 16 歐姆 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 特點： | 消除爆音，差分輸入，I²C，靜音，關(guān)閉，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應(yīng)商設(shè)備封裝： | 20-WLP |
| 封裝/外殼： | 20-WFBGA，WLBGA |
| 包裝： | 標準包裝 |
| 其它名稱： | MAX97002EWP+TDKR |
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Audio Subsystem with Mono Class D
Speaker and Class H Headphone Amplifiers
MAX97002
30
I2C Serial Interface
The MAX97002 features an I2C/SMBusK-compatible,
2-wire serial interface consisting of a serial-data line
(SDA) and a serial-clock line (SCL). SDA and SCL facili-
tate communication between the MAX97002 and the
master at clock rates up to 400kHz. Figure 1 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 MAX97002 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) condi-
tion and a STOP (P) condition. Each word transmitted
to the MAX97002 is 8 bits long and is followed by an
acknowledge clock pulse. A master reading data from
the MAX97002 transmits the proper slave address fol-
lowed by a series of nine SCL pulses. The MAX97002
transmits data on SDA in sync with the master-generated
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 acknowledge,
and a STOP condition. SDA operates as both an input
and an open-drain output. A pullup resistor, typically
greater than 500I, is required on SDA. SCL operates
only as an input. A pullup resistor, typically greater than
500I, is required on SCL if there are multiple masters 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
MAX97002 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 8). A START
condition from the master signals the beginning of a
transmission to the MAX97002. 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.
Charge-Pump Control
Table 7. Charge-Pump Control Register
SMBus is a trademark of Intel Corp.
Figure 8. START, STOP, and REPEATED START Conditions
SCL
SDA
S
Sr
P
REGISTER
BIT
NAME
DESCRIPTION
0x09
1
CPSEL
Charge-Pump Output Select. Works with the FIXED to set Q1.8V or Q0.9V outputs on
HPVDD and HPVSS. Ignored when FIXED = 0.
0 = Q1.8V on HPVDD/HPVSS
1 = Q0.9V on HPVDD/HPVSS
0
FIXED
Class H Mode. When enabled, this bit forces the charge pump to generate static power
rails for HPVDD and HPVSS, instead of dynamically adjusting them based on output sig-
nal level.
0 = Class H mode
1 = Fixed-supply mode
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX97003EVKIT# | 功能描述:音頻 IC 開發(fā)工具 MAX97003 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX97003EWP+ | 制造商:Maxim Integrated Products 功能描述:AUDIO SUBSYSTEM - Rail/Tube |
| MAX97003EWP+T | 功能描述:音頻放大器 Audio Subsystem 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: 安裝風格:SMD/SMT 封裝 / 箱體:TQFP-64 封裝:Reel |
| MAX9700AEBC | 制造商:Maxim Integrated Products 功能描述:1.2W LOW EMI FILTERLESS CLASS D - Rail/Tube |
| MAX9700AEBC+ | 制造商:Maxim Integrated Products 功能描述:AUD AMP SPKR 1CH MONO 1.6W CLS-D 12UCSP - Rail/Tube |
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