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ON Semiconductor EVBUM2659/D User Manual

ON Semiconductor EVBUM2659/D User Manual

Stereo evaluation board fan3852 microphone

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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
T
Operating Temperature Range
A
V
Supply Voltage Range
DD
T
Clock Rise and Fall Time
RF−CLK
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.
© Semiconductor Components Industries, LLC, 2019
August, 2019 − Rev. 0
Parameter
EVAL BOARD USER'S MANUAL
Figure 1. Board Photo
Min
Typ
−40
1.64
1.80
1
www.onsemi.com
Max
Unit
+85
3.63
10
Publication Order Number:
EVBUM2659/D
°C
V
ns

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Summary of Contents for ON Semiconductor EVBUM2659/D

  • Page 1 EVBUM2659/D FAN3852 Microphone Pre-Amp Stereo Evaluation Board User's Manual Overview www.onsemi.com This manual describes the features and operation of the FAN3852 stereo evaluation board (EVB). This board allows functional and EVAL BOARD USER’S MANUAL performance testing of the FAN3852 analog amplifier with PDM output.
  • Page 2 EVBUM2659/D Channel Layout Table 2. EVB Header Descriptions This evaluation board has two independent FAN3852 Header Description signal channels. This board can be configured to operate as P1−1 INPUT1 SMA connector a stand−alone single channel, as two independent channels, or in a stereo configuration using a single PDM clock/data P2−1...
  • Page 3 EVBUM2659/D Table 3. EVB JUMPER DESCRIPTIONS Default Position Jumper Description J1−1 Open Connects INPUT1 to VBIAS through 2.2 kW resistor R1−1 J2−1 Short Bypasses CLOCK1 input 100 W series termination resistor R2−1 J3−1 Open Connects 1 kW||47 pF load to ground (R3−1, C3−1) at DATA1 output J1−2...
  • Page 4: Pcb Layout

    EVBUM2659/D PCB LAYOUT Figure 6. Board Layout (Top) Figure 7. Board Layout (Bottom, Thru−view) PCB BILL OF MATERIALS Table 5. PCB EVB BILL OF MATERIALS Manufacturer Reference Description Package Value Manufacturer Part Number C1−1, C1−2 CAP SMD 1000 pF X7R 50V 0603...
  • Page 5: Pcb Schematic

    EVBUM2659/D PCB SCHEMATIC Figure 8. PCB Schematic www.onsemi.com...
  • Page 6: Technical Support

    onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of onsemi’s product/patent coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf.