參數(shù)資料
型號: MAX98089ETN+
廠商: Maxim Integrated Products
文件頁數(shù): 11/131頁
文件大?。?/td> 0K
描述: IC CODEC AUDIO FLEXSOUND 56TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 43
系列: FlexSound™
類型: 立體聲音頻
數(shù)據(jù)接口: I²C,串行
分辨率(位): 24 b
ADC / DAC 數(shù)量: 2 / 2
三角積分調(diào)變:
S/N 比,標準 ADC / DAC (db): 93 / 101
動態(tài)范圍,標準 ADC / DAC (db): 93 / 101
電壓 - 電源,模擬: 1.65 V ~ 2 V
電壓 - 電源,數(shù)字: 1.65 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 56-WFQFN 裸露焊盤
供應商設備封裝: 56-TQFN-EP(7x7)
包裝: 管件
Low-Power, Stereo Audio Codec
with FlexSound Technology
Class H Operation
A Class H amplifier uses a Class AB output stage with
power supplies that are modulated by the output signal.
In the case of the ICs, two nominal power-supply differ-
entials of 1.8V (+0.9V to -0.9V) and 3.6V (+1.8V to -1.8V)
are available from the charge pump. Figure 29 shows the
operation of the output-voltage-dependent power supply.
Headphone Ground Sense (HPSNS)
HPSNS senses the ground return for the headphone
load. For optimal performance, connect HPSNS to the
ground pole of the jack through an isolated trace, as
shown in Figure 30. If HPSNS is not used, connect to the
analog ground plane.
Figure 28. Traditional Amplifier Output vs. DirectDrive Output
Figure 29. Class H Operation
Figure 30. HPSNS configurations
VDD
VDD/2
GND
CONVENTIONAL AMPLIFIER BIASING SCHEME
DirectDrive AMPLIFIER BIASING SCHEME
+VDD
GND
-VDD
(VSS)
HPL
HPR
HPSNS
CONFIGURATION FOR OPTIMAL PERFORMANCE
HEADPHONE
JACK
HPL
HPR
HPSNS
CONFIGURATION FOR WHEN NOT USING HPSNS
HEADPHONE
JACK
32ms
1.8V
0.9V
VTH_H
VTH_L
-0.9V
-1.8V
HPVDD
HPVSS
OUTPUT
VOLTAGE
Maxim Integrated
108
MAX98089
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