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參數資料
| 型號： | MAX9768EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 4/26頁 |
| 文件大小： | 0K |
| 描述： | EVALUATION KIT FOR MAX9768 |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1 |
| 放大器類型： | D 類 |
| 輸出類型： | 1-通道（單聲道） |
| 在某負載時最大輸出功率 x 通道數量： | 10W x 1 @ 8 歐姆 |
| 電源電壓： | 4.5 V ~ 14 V |
| 工作溫度： | -40°C ~ 85°C |
| 板類型： | 完全填充 |
| 已用 IC / 零件： | MAX9768 |
| 已供物品： | 板 |
Detailed Description
The MAX9768 10W, Class D audio power amplifier with
spread-spectrum modulation provides a significant step
forward in switch-mode amplifier technology. The
MAX9768 offers Class AB performance with Class D
efficiency and a minimal board space solution. This
device features a wide supply voltage operation (4.5V to
14V), analog or digitally adjusted volume control, exter-
nally set input gain, shutdown mode, SYNC input and
output, speaker mute, and industry-leading click-and-
pop suppression.
The MAX9768 features a 64-step, dual-mode (analog or
I2C programmed) volume control and mute function. In
analog volume control mode, voltage applied to
SDA/VOL sets the volume level. Two address inputs
(ADDR1, ADDR2) set the volume control function
between analog and I2C and set the slave address. In
I2C mode there are three selectable slave addresses
allowing for multiple devices on a single bus.
Spread-spectrum modulation and synchronizable
switching frequency significantly reduce EMI emis-
sions. The outputs use Maxim’s low-EMI modulation
scheme with minimum pulse outputs when the audio
inputs are at the zero crossing. As the input voltage
increases or decreases, the duration of the pulse at
one output increases while the other output pulse dura-
tion remains the same. This causes the net voltage
across the speaker (VOUT+ - VOUT-) to change. The
minimum-width pulse topology reduces EMI and
increases efficiency.
MAX9768
10W Mono Class D Speaker
Amplifier with Volume Control
12
______________________________________________________________________________________
MUTE
VOLUME
CONTROL
CLASS
D
SHUTDOWN
CONTROL
OSCILLATOR
SYNCOUT
BIAS
14
VDD
PVDD
CBIAS
2.2
μF
7
8
1, 2
4
17, 18
15
10
13
FB
RF
30k
Ω
RIN
20k
Ω
CIN
0.47
μF
C1
0.1
μF
C2
0.1
μF
1
μF
1
μF
IN
20
19
6
5
24
23
GND
PGND
OUT+
BOOT+
OUT-
BOOT-
BIAS
12
3, 16
9, 11
21, 22
2.7V to 3.6V
4.5V to 14V
SYNC
MUTE
SHDN
SDA/VOL
SCLK
ADDR1
ADDR2
I2C
ANALOG
CONTROL
MAX9768
(SHOWN IN ANALOG VOLUME CONTOL MODE, AV = 23.5dB, f-3dB = 17Hz, SPREAD-SPECTRUM MODULATION MODE, FILTERLESS MODULATION MODE, MUTE OFF)
Functional Diagram/Typical Application Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9768EVKIT+ | 功能描述:音頻 IC 開發工具 MAX9768 Eval Kit RoHS:否 制造商:Texas Instruments 產品:Evaluation Kits 類型:Audio Amplifiers 工具用于評估:TAS5614L 工作電源電壓:12 V to 38 V |
| MAX976ESA | 功能描述:校驗器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX976ESA+ | 功能描述:校驗器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX976ESA+T | 功能描述:校驗器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| MAX976ESA-T | 功能描述:校驗器 IC Dual High Speed Comparator RoHS:否 制造商:STMicroelectronics 產品: 比較器類型: 通道數量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應時間: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
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