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HTP-420
Onkyo HTP-420 User Manual
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Typical
Single-Supply
Applications
(V
+
=
5.0
V
DC
)
(Continued)
Squarewave
Oscillator
DS009299-16
Pulse
Generator
DS009299-17
High
Compliance
Current
Sink
DS009299-18
I
O
=
1
amp/volt
V
IN
(Increase
R
E
for
I
o
small)
LM124/LM224/LM324/LM2902
www
.national.com
12
37
39
Table of Contents
Black and Silver Models
1
Specifications
2
Exploded View
3
Powered Subwoofer
3
Block Diagram
6
Schematic Diagram
7
Main P.C.board
8
PC Board Connection Diagram
10
Printed Circuit Board View
11
Features
12
Description
12
Multipower BCD Technology
12
Typical Application and Test Circuit
12
PIN Connection
13
Absolute Maximum Ratings
13
Thermal Data
13
Electrical Characteristics
14
Typical Application P.C. Board and Component Layout
15
Application Suggestions
16
Introduction
17
Output Stage
17
Protections
17
Principle Schematic of a DMOS Unity-Gain Buffer
17
Application Information High-Efficiency
18
Other Features
18
Turn ON/OFF Suggested Sequence
18
Single Signal ST-BY/MUTE Control Circuit
18
Bridge Application
19
Application Note
19
The Bootstrap Capacitor
19
High Efficiency Application Circuit
20
PCB and Component Layout
20
PCB - Solder Side
21
Modular Application Circuit
21
Modular Application P.C. Board and Component Layout
22
Distortion Vs Output Power
23
Distortion Vs Frequency
23
Modular Application Derating Rload Vs Vsupply
23
Modular Application Pd Vs Vsupply
23
Outline and Mechanical Data
24
General Description
27
Unique Characteristics
27
Advantages
27
Connection Diagram
27
Connection Diagram
28
Schematic Diagram
28
Electrical Characteristics
29
Typical Performance Characteristics
32
Application Hints
34
Typical Single-Supply Applications
35
Non-Inverting DC Gain
35
DC Summing Amplifier
35
Power Amplifier
35
LED Driver
36
“BI-QUAD” RC Active Bandpass Filter
36
Fixed Current Sources
36
Lamp Driver
36
Current Monitor
37
Driving TTL
37
Voltage Follower
37
Pulse Generator
37
Squarewave Oscillator
38
High Compliance Current Sink
38
Low Drift Peak Detector
39
Comparator with Hysteresis
39
Ground Referencing a Differential Input Signal
39
Voltage Controlled Oscillator Circuit
40
Photo Voltaic-Cell Amplifier
40
AC Coupled Inverting Amplifier
40
AC Coupled Non-Inverting Amplifier
41
DC Coupled Low-Pass RC Active Filter
41
High Input Z, DC Differential Amplifier
42
High Input Z Adjustable-Gain DC Instrumentation Amplifier
42
Physical Dimensions
44
Exploded View Parts List
47
Printed Circuit Board Parts List
48
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Onkyo HTP-420 Specifications
General
Brand
Onkyo
Model
HTP-420
Category
Home Cinema speakers
Language
English
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