hc9p55564-5 Harris Corporation, hc9p55564-5 Datasheet

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hc9p55564-5

Manufacturer Part Number
hc9p55564-5
Description
Continuously Variable Slope Delta-modulator Cvsd
Manufacturer
Harris Corporation
Datasheet
1.HC9P55564-5.pdf (9 pages)
February 1999
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
Features
• All Digital
• Requires Few External Parts
• Low Power Drain: 1.5mW Typical From Single 4.5V
• Time Constants Determined by Clock Frequency;
• Half Duplex Operation Under Digital Control
• Filter Reset Under Digital Control
• Automatic Overload Recovery
• Automatic “Quiet” Pattern Generation
• AGC Control Signal Available
Applications
• Voice Transmission Over Data Channels (Modems)
• Voice/Data Multiplexing (Pair Gain)
• Voice Encryption/Scrambling
• Voicemail
• Audio Manipulations: Delay Lines, Time Compression,
• Pagers/Satellites
• Data Acquisition Systems
• Voice I/O for Digital Systems and Speech Synthesis
• Related Literature
Pinouts
To 6V Supply
No Calibration or Drift Problems: Automatic Offset
Adjustment
Echo Generation/Suppression, Special Effects, etc.
Requiring Small Size, Low Weight, and Ease of
Reprogrammability
- AN607, Delta Modulation for Voice Transmission
©
Harris Corporation 1999
ANALOG GND
Semiconductor
A
AGC
V
OUT
A
NC
NC
DD
IN
1
2
3
4
5
6
7
(PDIP, CERDIP)
TOP VIEW
HC-55564
14
13
12
10
11
9
8
DIG OUT
FZ
DIG IN
APT
ENC/DEC
CLOCK
DIG GND
Description
The HC-55564 is a half duplex modulator/demodulator CMOS
intergrated circuit used to convert voice signals into serial NRZ
digital data and to reconvert that data into voice. The conver-
sion is by delta-modulation, using the Continuously Variable
Slope (CVSD) method of modulation/demodulation.
While the signals are compatible with other CVSD circuits, the inter-
nal design is unique. The analog loop filters have been replaced by
very low power digital filters which require no external timing compo-
nents. This approach allows inclusion of many desirable features
which would be difficult to implement using other approaches.
The fundamental advantages of delta-modulation, along with its
simplicity and serial data format, provide an efficient (low data
rate/low memory requirements) method for voice digitization.
The HC-55564 is usable from 9kbits/s to above 64kbps. See the
Harris Military databook for a MIL-STD-883C compliant CVSD.
Application Note 607.
Ordering Information
1
HC1-55564-2
HC1-55564-5
HC1-55564-9
HC3-55564-5
HC9P55564-5
NUMBER
PART
ANALOG GND
Slope Delta-Modulator (CVSD)
RANGE (
-55 to 125
HC-55564
-40 to 85
A
TEMP.
0 to 75
0 to 75
0 to 75
AGC
V
OUT
AIN
NC
NC
NC
DD
1
2
3
4
5
6
7
8
o
C)
TOP VIEW
HC-55564
Continuously Variable
(SOIC)
16 Ld Plastic SOIC (W) M16.3
14 Ld CERDIP
14 Ld CERDIP
14 Ld CERDIP
14 Ld PDIP
PACKAGE
16
15
14
13
12
11
10
9
File Number
DIG OUT
FZ
DIG IN
APT
ENC/DEC
CLOCK
DIG GND
NC
F14.3
F14.3
F14.3
E14.3
PKG. NO.
2889.5

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hc9p55564-5 Summary of contents

Page 1

... The HC-55564 is usable from 9kbits/s to above 64kbps. See the Harris Military databook for a MIL-STD-883C compliant CVSD. Application Note 607. Ordering Information PART NUMBER HC1-55564-2 HC1-55564-5 HC1-55564-9 HC3-55564-5 HC9P55564-5 14 DIG OUT ANALOG GND DIG IN 11 APT 10 ...

Page 2

Absolute Maximum Ratings Voltage at Any Pin . . . . . . . . . . . . . . . . . . . .GND -0. Maximum V Voltage . . . . . . . ...

Page 3

Pin Descriptions PIN NUMBER 14 LEAD DIP SYMBOL 1 V Positive Supply Voltage. Voltage range is 4.5V to 6.0V Analog GND Analog Ground connection to D/A ladders and comparator Audio Out recovered from 10-bit DAC. May ...

Page 4

Timing Waveforms SAMPLING CLOCK FZ/APT DEC/ENC DIGITAL NRZ DIGITAL NRZ OUT t : DATA SET UP TIME 100ns TYPICAL DS Interface Circuit for HC-55564 CVSD AUDIO SOURCE INPUT 2 VF LEVEL ADJUST 3 ...

Page 5

Figures 4, 5, and 6 illustrate the typical frequency response of the HC-55564 for varying input levels and for varying sampling rates. To prevent slope overload (slew limiting), the 0dB boundary should not be exceeded. The frequency response is directly ...

Page 6

The following typical performance distortion graphs were realized with the test configuration of Figure 7. The measurement vehicle for Total Harmonic Distortion (THD) was an HP-339A distortion measurement set, and for 2nd HC-55564 0. ...

Page 7

Ceramic Dual-In-Line Frit Seal Packages (CERDIP) - bbb BASE Q PLANE -C- SEATING PLANE aaa ccc C ...

Page 8

Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. In case of ...

Page 9

Small Outline Plastic Packages (SOIC INDEX xx 0.25(0.010) H AREA - SEATING PLANE - - 0.10(0.004 0.25(0.010 ...

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