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PCM3052ARTF.B 数据表(PDF) 28 Page - Texas Instruments

部件名 PCM3052ARTF.B
功能描述  24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA
PDF  48 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

PCM3052ARTF.B 数据表(HTML) 28 Page - Texas Instruments

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REFERENCE OUTPUT
+
−
MUX
S0124-01
Electret
Microphone
MINM
MINP
REF
34 dB
+ 10 mA
6
Ω
REFO
+
(0.5 VCC1)
−1 mA
48
Ω
MBIAS
+
(0.75 VCC1)
LINE AND MICROPHONE INPUT SELECT INDICATOR
PCM3052A
SLES160 – NOVEMBER 2005
The PCM3052A has a reference output pin (RFFO, pin 32) to supply reference voltage (0.5 VCC1) to external
components. The pin has 10-mA sink/source capability with 6-
Ω output impedance.
Figure 49. Microphone Amplifier, Microphone Bias Generator, and Reference Output
The PCM3052A employs an indicator pin (L/M, pin 3) to show which analog input is selected, line or microphone.
Table 3. Line and Microphone Select Indicator
L/M
LINE/MIC SELECT
INDICATOR
LOW
Microphone
HIGH
Line
28



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