Electronic Components Datasheet Search
  English  ▼

X  

Preview PDF HTML

DSP56156ROM Datasheet(PDF) 70 Page - Motorola, Inc

Part # DSP56156ROM
Description  16-bit Digital Signal Processor
PDF  76 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

DSP56156ROM Datasheet(HTML) 70 Page - Motorola, Inc

Back Button DSP56156ROM Datasheet HTML 66Page - Motorola, Inc DSP56156ROM Datasheet HTML 67Page - Motorola, Inc DSP56156ROM Datasheet HTML 68Page - Motorola, Inc DSP56156ROM Datasheet HTML 69Page - Motorola, Inc DSP56156ROM Datasheet HTML 70Page - Motorola, Inc DSP56156ROM Datasheet HTML 71Page - Motorola, Inc DSP56156ROM Datasheet HTML 72Page - Motorola, Inc DSP56156ROM Datasheet HTML 73Page - Motorola, Inc DSP56156ROM Datasheet HTML 74Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 70 / 76 page
background image
Design Considerations
MOTOROLA
DSP56156 Data Sheet
65
Analog I/O Considerations
Figure 44 describes the recommended analog I/O and power supply configurations. The two
analog inputs are electrically identical. When one is not used, it can be left floating. When
used, an AC coupling capacitor is required. The value of the capacitor along with the input
impedance of the pin determine the cut off frequency of a high pass filter. The input imped-
ance of the MIC and AUX varies as a function of the sigma-delta (²ý) modulator master clock.
78 k
Ω is a typical value at 2 MHz. An AC capacitor of 1µF defines a high pass filter pole of 2
Hz. A smaller capacitor value will move this pole higher in frequency.
Figure 44 Recommended Analog I/O Configuration
Σ∆
modulator
2.0 V
±10%
(≤ ±1mA)
MIC
VREF
AUX
Bias
Š10
µF
-6 dB
6 dB
MGS1-0 bits
3 POLE
2 ZERO
Low Pass
Filter (LPF)
VC3-VC0
(to microphone)
SPKP
(2/5 VCC)
+
digital VCC
INS bit
17 dB
VDIV
ð50 nF
1
µF
600
Ω
0.001
µF
1
µF
600
Ω
RBias
15
µF
0.1
µF
+5 dB
54 K
Ω
36 K
Ω
Š1 K
Ω
10 K
Ω
VREF
0.001
µF
VCCA
GNDA
+
15
µF
0.1
µF
GNDA
GNDA
+5 V
+
220
µF
Analog Decoupling
near DSP
Single trace
External
External Supply
GND
digital GND
Single trace
GNDA
VCCA
0.01
µF
SPKM
VREF
GND
Analog I/O Considerations
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76


Datasheet Download

Go To PDF Page


Link URL



Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link to Datasheet    |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com