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參數資料
| 型號： | MAX9879ERV+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 1/32頁 |
| 文件大小： | 0K |
| 描述： | IC AUDIO SUBSYSTEM 30-UCSP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 系列： | DirectDrive® |
| 類型： | D 類 |
| 輸出類型： | 2-通道（立體聲）帶立體聲耳機 |
| 在某負載時最大輸出功率 x 通道數量： | 715mW x 2 @ 8 歐姆; 58mW 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，短路和熱保護，關機，音量控制 |
| 安裝類型： | 表面貼裝 |
| 供應商設備封裝： | 30-UCSP（5x6） |
| 封裝/外殼： | 30-WFBGA，CSPBGA |
| 包裝： | 帶卷 (TR) |
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MAX9879
Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
EVALUATION KIT AVAILABLE
19-4436; Rev 1; 4/13
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
The MAX9879 combines a high-efficiency stereo Class D
audio power amplifier with a stereo capacitor-less
DirectDrive headphone amplifier. Maxim’s filterless class
D amplifiers with active emissions limiting technology pro-
vide Class AB performance with Class D efficiency.
The Class D power amplifier delivers up to 715mW from
a 3.7V supply into an 8
Ω load with 88% efficiency to
extend battery life. The filterless modulation scheme
combined with active emission limiting circuitry and
spread-spectrum modulation greatly reduces EMI while
eliminating the need for output filtering used in tradition-
al Class D devices.
The headphone amplifier delivers up to 58mW from
a 3.7V supply into a 16
Ω load. Maxim’s DirectDrive
architecture produces a ground-referenced output from
a single supply, eliminating the need for large DC-
blocking capacitors, saving cost, space and compo-
nent height.
The device utilizes a user-defined input architecture,
three preamplifier gain settings, an input mixer, volume
control, comprehensive click-and-pop suppression, and
I2C control. A bypass mode feature disables the integrat-
ed Class D amplifier and utilizes an internal DPST switch
to allow an external amplifier to drive the speaker that is
connected at the outputs of the MAX9879.
The MAX9879 is available in a thermally efficient,
space-saving 30-bump UCSP package.
Applications
Features
o Better than 9dB Margin Under EN 55022 Class B
Limits with No Filter Components
o Low RF Susceptibility Design Rejects TDMA
Noise from GSM Radios
o Input Mixer with User Defined Input Mode
o Stereo 715mW Speaker Output (RL = 8Ω,
VDD = 3.7V)
o Stereo 58mW Headphone Output (16Ω,
VDD = 3.7V)
o Low 0.04% THD+N at 1kHz (Class D Power
Amplifier)
o Low 0.018% THD+N at 1kHz (Headphone
Amplifier)
o 88% Efficiency (RL = 8Ω, POUT = 750mW)
o 1.6Ω Analog Switch for Speaker Amplifier Bypass
o High Speaker Amplifier PSRR (72dB at 217Hz)
o High Headphone Amplifier PSRR (84dB at 217Hz)
o I2C Control
o Hardware and Software Shutdown Mode
o Ultra-Low Click and Pop
o Robust Design with Current and Thermal
Protection
o Available in Space-Saving Package
5x6 UCSP (2.5mm x 3mm)
MIXER
PREAMPLIFIER
SINGLE SUPPLY
2.7V TO 5.5V
I2C
INTERFACE
VOLUME
CONTROL
VOLUME
CONTROL
BYPASS
MAX9879
Simplified Block Diagram
OUTL-
PVDDL
OUTL+
C1P
1
A
B
C
D
E
2
3
4
PGNDR
RXIN-
PGNDL
RXIN+
C1N
PGNDR
GND
VSS
GND
BIAS
INB1
INA1
HPL
SCL
56
TOP VIEW
(BUMP SIDE DOWN)
OUTR-
PVDDR
OUTR+
SDA
VDD
INB2
INA2
HPR
SHDN
VCCIO
Pin Configuration
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9879ERV+
-40°C to +85°C
30 UCSP (5x6)
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Cell Phones
Portable Multimedia Players
DirectDrive is a registered trademark of Maxim Integrated
Products, Inc.
UCSP is a trademark of Maxim Integrated Products, Inc.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX9879EVKIT+ | 功能描述:音頻放大器 Stereo Class D Audio Subsystem with DirectDrive Headphone Amplifier RoHS:否 制造商:STMicroelectronics 產品: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 |
| MAX987ESA | 功能描述:校驗器 IC Single uPower 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 |
| MAX987ESA+ | 功能描述:校驗器 IC Single uPower 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 |
| MAX987ESA+T | 功能描述:校驗器 IC Single uPower 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 |
| MAX987ESA-T | 功能描述:校驗器 IC Single uPower 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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