參數(shù)資料
型號(hào)： MAX9789BETJ+
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 5/28頁(yè)
文件大小： 0K
描述： IC AMP AUDIO 2W STER AB 32TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 60
系列： DirectDrive®
類型： AB 類
輸出類型： 2-通道（立體聲）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： 2W x 2 @ 4 歐姆; 100mW x 2 @ 16 歐姆
電源電壓： 4.5 V ~ 5.5 V
特點(diǎn)： 消除爆音，靜音，短路保護(hù)和熱保護(hù)，關(guān)機(jī)
安裝類型： 表面貼裝
供應(yīng)商設(shè)備封裝： 32-TQFN-EP（5x5）
封裝/外殼： 32-WFQFN 裸露焊盤(pán)
包裝： 管件
MAX9789/MAX9790
Windows Vista-Compliant, Stereo Class AB Speaker
Amplifiers and DirectDrive Headphone Amplifiers
______________________________________________________________________________________
13
Pin Description
PIN
MAX9789
MAX9790
NAME
FUNCTION
1
—
LDO_SET
Regulator Feedback Input. Connect to GND for 4.75V fixed output. Connect to a resistor-
divider for adjustable output. See Figure 1.
2
SPKR_INR
Right-Channel Speaker Amplifier Input
3
SPKR_INL
Left-Channel Speaker Amplifier Input
4
—
LDO_EN
LDO Enable. Connect LDO_EN to VDD to enable the LDO.
5, 21
PGND
Power Ground. Star-connect to GND.
6
OUTL+
Left-Channel Speaker Amplifier Output, Positive Phase
7
OUTL-
Left-Channel Speaker Amplifier Output, Negative Phase
8, 18
PVDD
Speaker Amplifier Power-Supply Input. Bypass with a 0.1F capacitor to PGND.
9
CPVDD
Charge-Pump Power Supply. Connect a 1F capacitor between CPVDD and PGND.
10
C1P
Charge-Pump Flying Capacitor Positive Terminal. Connect a 1F capacitor between C1P
to C1N.
11
CPGND
Charge-Pump Ground. Connect directly to PGND plane.
12
C1N
Charge-Pump Flying Capacitor Negative Terminal. Connect a 1F capacitor between C1P
to C1N.
13
CPVSS
Charge-Pump Output. Connect to PVSS.
14
PVSS
Headphone Amplifier Negative Power Supply. Connect a 1F capacitor between PVSS and
PGND.
15
HPR
Right-Channel Headphone Amplifier Output
16
HPL
Left-Channel Headphone Amplifier Output
17
HPVDD
Headphone Amplifier Positive Power Supply. Connect a 10F capacitor between HPVDD
and PGND.
19
OUTR-
Right-Channel Speaker Amplifier Output, Negative Phase
20
OUTR+
Right-Channel Speaker Amplifier Output, Positive Phase
22
HP_EN
Active-High Headphone Amplifier Enable
23
SPKR_EN
Active-Low Speaker Amplifier Enable
24
BIAS
Common-Mode Bias Voltage. Bypass with a 1F capacitor to GND.
25
MUTE
Active-Low Mute Enable. Mutes speaker and headphone amplifiers.
26
HP_INR
Right-Channel Headphone Amplifier Input
27
HP_INL
Left-Channel Headphone Amplifier Input
28
4, 28
GND
Signal Ground. Star-connect to PGND.
29
—
LDO_OUT
LDO Output. Bypass with two 1F capacitors to GND.
30
VDD
Positive Power Supply and LDO Input (MAX9789). Bypass with one 0.1F capacitor and
two 1F capacitors to GND (MAX9789). Bypass with one 0.1F capacitor and one 1F
capacitor to GND (MAX9790).
31
GAIN1
Speaker Amplifier Gain Select 1
32
GAIN2
Speaker Amplifier Gain Select 2
—
1, 29
N.C.
No Connection. Not internally connected.
EP
Exposed Paddle. Connect to GND.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9789BETJ+ 功能描述:音頻放大器 Windows Vista Class AB Speaker Amp 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
MAX9789BETJ+T 功能描述:音頻放大器 Windows Vista Class AB Speaker Amp 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
MAX9789CETJ+ 功能描述:音頻放大器 Windows Vista Class AB Speaker Amp 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
MAX9789CETJ+T 功能描述:音頻放大器 Windows Vista Class AB Speaker Amp 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
MAX978EEE 功能描述:校驗(yàn)器 IC Quad High Speed Comparator 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(shí)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
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