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參數資料
型號: TPS65920BZCHR
廠商: TEXAS INSTRUMENTS INC
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA139
封裝: 10 X 10 MM, 0.65 MM PITCH, GREEN, PLASTIC, NFBGA-139
文件頁數: 77/115頁
文件大小: 1232K
代理商: TPS65920BZCHR
Device
Onboard
MICBIAS.GND
MIC.MAIN.P
MICBIAS1.OUT
RSM
MIC.MAIN.M
4
1
3
2
Power Output
GND
1 kW
Optional
dependingon
dynamicofMIC
SiliconMIC
SPM0204HE5-PB
(SPM0102ND3-C)
037-007
CSM
CSM.P
CSM.PG
CSM.M
SWCS037G
– MAY 2008 – REVISED APRIL 2011
The silicon microphone is the integration of mechanical elements and electronics on a common silicon
substrate through microfabrication technology.
The complementary metal oxide semiconductor (CMOS) MEMS microphone is more like an analog IC
than a classical microphone, or electric condenser microphone (ECM). It is powered as an IC with a direct
connection to the power supply. The on-chip isolation between the power input and the rest of the system
adds power supply rejection (PSR) to the component. This makes the CMOS MEMS microphone
inherently more immune to power supply noise than an ECM and eliminates the need for additional
filtering circuitry to keep the power supply line clean.
Table 6-9 lists the characteristics of the silicon microphone module.
Table 6-9. Silicon Microphone Module Characteristics
Parameter
Test Conditions
Min
Typ
Max
Unit
Bias voltage
2.2
V
Load current
1
mA
Output noise
P-weighted 20 Hz to 6.6 kHz
1.8
μVRMS
Figure 6-8 is a schematic for the silicon microphone.
Figure 6-8. Silicon Microphone
NOTE
For other component values, see Table 14-1.
64
Audio/Voice Module (TPS65930 Device Only)
Copyright
2008–2011, Texas Instruments Incorporated
focus.ti.com: TPS65930/TPS65920
相關PDF資料
PDF描述
TPS65920BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930A2ZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930BZCHR SPECIALTY CONSUMER CIRCUIT, PBGA139
TPS65930BZCH SPECIALTY CONSUMER CIRCUIT, PBGA139
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