©
Semiconductor Components Industries, LLC, 2019
August, 2019
−
Rev. 0
1
Publication Order Number:
EVBUM2659/D
EVBUM2659/D
FAN3852 Microphone
Pre-Amp Stereo Evaluation
Board User's Manual
Overview
This manual describes the features and operation of the FAN3852
stereo evaluation board (EVB). This board allows functional and
performance testing of the FAN3852 analog amplifier with PDM
output. The FAN3852 was originally designed as a pre
−
amplifier for
analog electret condenser microphones (ECM); however, this board
can easily be used to amplify and digitize other low
−
amplitude analog
signals with a similar bandwidth, such as from pressure, vibration or
ambient light sensors. The FAN3852 has a fixed gain of +16 dB.
Required Hardware & Equipment
Use of this board requires the following equipment and hardware:
•
DC Voltage Source (1.8 V–3.3 V)
•
Banana Plug Cables
•
ECM Module or Other Small
−
Amplitude Analog Signal Source
•
PDM Clock Generator
•
PDM Data Receiver/Analyzer
Quick Start
The jumper configuration is preset for stereo operation with
CLOCK1 and DATA1 lines being used for both input channels. In this
configuration, INPUT1 is configured as the LEFT audio input and
INPUT2 is the RIGHT audio input.
1. Connect PDM clock source to CLOCK1 input.
2. Connect PDM data receiver to DATA1 output.
3. Connect analog input signal(s) to INPUT1 (INPUT2).
Table 1. FAN3852 RECOMMENDED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
T
A
Operating Temperature Range
−
40
−
+85
°
C
V
DD
Supply Voltage Range
1.64
1.80
3.63
V
T
RF
−
CLK
Clock Rise and Fall Time
−
−
10
ns
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond
the Recommended Operating Ranges limits may affect device reliability.
EVAL BOARD USER’S MANUAL
Figure 1. Board Photo
