- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄2091 > MAX9744ETH+ (Maxim Integrated Products)IC AMP AUDIO PWR 22.5W D 44TQFN PDF資料下載
參數(shù)資料
| 型號： | MAX9744ETH+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP AUDIO PWR 22.5W D 44TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 43 |
| 類型： | D 類 |
| 輸出類型： | 2 通道（立體聲） |
| 在某負(fù)載時最大輸出功率 x 通道數(shù)量： | 22.5W x 2 @ 4 歐姆 |
| 電源電壓： | 4.5 V ~ 14 V |
| 特點(diǎn)： | 消除爆音，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： | 44-TQFN-EP（7x7） |
| 封裝/外殼： | 44-WFQFN 裸露焊盤 |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1392 (CN2011-ZH PDF) |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁當(dāng)前第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
MAX9744
20W Stereo Class D Speaker Amplifier
with Volume Control
______________________________________________________________________________________
17
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). SDA and SCL idle high when the
I2C bus is not busy.
START and STOP Conditions
A master device initiates communication by issuing a
START condition. 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
4). A START (S) condition from the master signals the
beginning of a transmission to the MAX9744. The mas-
ter terminates transmission, and frees the bus, by issu-
ing a STOP (P) condition. The bus remains active if a
Repeated START (Sr) condition is generated instead of
a STOP condition.
Early STOP Conditions
The MAX9744 recognizes a STOP condition at any point
during data transmission except if the STOP condition
occurs in the same high pulse as a START condition.
Slave Address
The slave address of the MAX9744 is 8 bits and con-
sists of 3 fields: the first field is 5 bits wide and is fixed
(10010), the second is a 2 bit field which is set through
ADDR1 and ADDR2 (externally connected as logic-high
or logic-low), and the third field is a R/W flag bit. Set
R/W = 0 to write to the slave. A representation of the
slave address is shown in Table 3.
When ADDR1 and ADDR2 are connected to GND, seri-
al interface communication is disabled. Table 4 sum-
marizes the slave address of the device as a function of
ADDR1 and ADDR2.
Acknowledge
The acknowledge bit (ACK) is a clocked 9th bit that the
MAX9744 uses to handshake receipt of each byte of
data (see Figure 5). The MAX9744 pulls down SDA dur-
ing the master-generated 9th clock pulse. The SDA line
must remain stable and low during the high period of
the acknowledge clock pulse. Monitoring ACK allows
for detection of unsuccessful data transfers. An unsuc-
cessful data transfer occurs if a receiving device is
busy or if a system fault has occurred. In the event of
an unsuccessful data transfer, the bus master may reat-
tempt communication.
SCL
SDA
SSr
P
Figure 4. START, STOP, and Repeated START Conditions
1
SCL
START
CONDITION
SDA
29
CLOCK PULSE FOR
ACKNOWLEDGMENT
ACKNOWLEDGE
NOT ACKNOWLEDGE
8
Figure 5. Acknowledge
SA7 (MSB)
SA6
SA5
SA4
SA3
SA2
SA1
SA0 (LSB)
1
0
1
0
ADDR2
ADDR1
R/W
Table 3. Slave Address Block
ADDR2
ADDR1
SLAVE ADDRESS
00
I2C disabled
0
1
1001001_
1
0
1001010_
1
1001011_
Table 4. Slave Address
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX9753ETI+T | IC AMP AUDIO PWR 2.2W D 28TQFN |
| MAX9755ETI+T | IC AMP AUDIO PWR 2.6W AB 28TQFN |
| MAX9758ETJ+T | IC AMP AUDIO PWR 2.3W AB 32TQFN |
| MAX9759ETE+T | IC AMP AUDIO PWR 3.2W D 16TQFN |
| MAX9763ETI+T | IC AMP AUDIO PWR 3W MONO 28TQFN |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9744ETH+ | 功能描述:音頻放大器 Stereo 20W Class D Amplifier 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 |
| MAX9744ETH+T | 功能描述:音頻放大器 Stereo 20W Class D Amplifier 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 |
| MAX9744EVCMAXQU+ | 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 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 |
| MAX9744EVKIT+ | 功能描述:音頻放大器 Evaluation Kit/Evaluation System for the MAX9744 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 |
| MAX974CPE | 功能描述:校驗(yàn)器 IC RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。