tp3067 National Semiconductor Corporation, tp3067 Datasheet

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tp3067

Manufacturer Part Number
tp3067
Description
``enhanced Serial Interface Cmos Codec/filter Combo
Manufacturer
National Semiconductor Corporation
Datasheet

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C 1995 National Semiconductor Corporation
TP3064 TP3067
‘‘Enhanced’’ Serial Interface
CMOS CODEC Filter COMBO
General Description
The TP3064 ( -law) and TP3067 (A-law) are monolithic
PCM CODEC Filters utilizing the A D and D A conversion
architecture shown in Figure 1 and a serial PCM interface
The devices are fabricated using National’s advanced dou-
ble-poly CMOS process (microCMOS)
Similar to the TP305X family these devices feature an addi-
tional Receive Power Amplifier to provide push-pull bal-
anced output drive capability The receive gain can be ad-
justed by means of two external resistors for an output level
of up to
Also included is an Analog Loopback switch and a TS
put
See also AN-370 ‘‘Techniques for Designing with CODEC
Filter COMBO Circuits ’’
COMBO and TRI-STATE are registered trademarks of National Semiconductor Corpora-
tion
Block Diagram
g
6 6V across a balanced 600
TL H 5070
load
X
out-
FIGURE 1
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Complete CODEC and filtering system including
A-law TP3067
Designed for D3 D4 and CCITT applications
Low operating power typically 70 mW
Power-down standby mode typically 3 mW
Automatic power-down
TTL or CMOS compatible digital interfaces
Maximizes line interface card circuit density
g
-law TP3064
5V operation
Transmit high-pass and low-pass filtering
Receive low-pass filter with sin x x correction
Active RC noise filters
Internal precision voltage reference
Serial I O interface
Internal auto-zero circuitry
Receive push-pull power amplifiers
-law or A-law compatible COder and DECoder
RRD-B30M115 Printed in U S A
October 1991
TL H 5070 – 1

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tp3067 Summary of contents

Page 1

... Serial Interface CMOS CODEC Filter COMBO General Description The TP3064 ( -law) and TP3067 (A-law) are monolithic PCM CODEC Filters utilizing the A D and D A conversion architecture shown in Figure 1 and a serial PCM interface The devices are fabricated using National’s advanced dou- ...

Page 2

... See NS Package J20A Order Number TP3064WM or TP3067WM See NS Package M20B Order Number TP3064N or TP3067N TL H 5070– 2 See NS Package N20A Order Number TP3064V or TP3067V See NS Package V20A Symbol MCLK Transmit master clock Must be 1 536 MHz X 1 544 MHz or 2 048 MHz May be ...

Page 3

... For asynchronous operation separate transmit and receive clocks may be applied MCLK and MCLK X R MHz for the TP3067 or 1 536 MHZ 1 544 MHz for the TP3064 and need not be synchronous For best transmis- sion performance however MCLK with MCLK which is easily achieved by applying only static ...

Page 4

... The receive section consists of an expanding DAC which drives a fifth order switched-capacitor low pass filter clocked at 256 kHz The decoder is A-law (TP3067) or -law (TP3064) and the 5th order low pass filter corrects for the sin x x attenuation due to the 8 kHz sample hold The ...

Page 5

Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications V to GNDA GNDA BB Voltage at any Analog Input or Output ...

Page 6

Electrical Characteristics Unless otherwise noted limits printed in BOLD characters are guaranteed for correlation with 100% electrical testing at T production tests and or product design and characterization All signals referenced to GNDA ...

Page 7

Timing Specifications Unless otherwise noted limits printed in BOLD characters are guaranteed for correlation with 100% electrical testing at T production tests and or product design and characterization All signals are referenced to ...

Page 8

Timing Diagrams 8 ...

Page 9

Timing Diagrams (Continued) 9 ...

Page 10

... kHz Conditions Nominal 0 dBm0 Level is 4 dBm (600 ) 0 dBm0 Max Transmit Overload Level TP3064 (3 17 dBm0) TP3067 (3 14 dBm0 ...

Page 11

... Hz 2600 2600 Hz 2800 2800 Hz 3000 TP3064 (Note 1) TP3067 (Note 1) PCM Code Equals Alternating Positive and Negative Zero TP3064 PCM Code Equals Positive Zero TP3067 f 0 kHz to 100 kHz Loop Around e Measurement Vrms ...

Page 12

... Note 1 Measured by extrapolation from the distortion test result at Note 2 PPSR NPSR and CT are measured with Note 3 TP3064 is measured using C message weighted filter TP3067 is measured using psophometric weighted filter (Continued All other limits are assured by correlation with other kHz V ...

Page 13

Applications Information POWER SUPPLIES While the pins of the TP3060 family are well protected against electrical misuse it is recommended that the stan- dard CMOS practice be followed ensuring that ground is connected to the device before any other connections ...

Page 14

Definitions and Timing Conventions DEFINITIONS the d c input level above which input level is guaranteed to appear as a logical one This parameter measured by performing a functional test at ...

Page 15

15 ...

Page 16

... Physical Dimensions inches (millimeters) Order Number TP3064J or TP3067J Molded Small Outline Package (WM) Order Number TP3064WM or TP3067WM Cavity Dual-In-Line Package (J) NS Package Number J20A NS Package Number M20B 16 ...

Page 17

... Physical Dimensions inches (millimeters) (Continued) Order Number TP3064N or TP3067N Molded Dual-In-Line Package (N) NS Package Number N20A 17 ...

Page 18

... Physical Dimensions inches (millimeters) (Continued) Order Number TP3064V or TP3067V LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...

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