TP3070V-XG National Semiconductor, TP3070V-XG Datasheet

IC COMBO II PCM FILTER 28PLCC

TP3070V-XG

Manufacturer Part Number
TP3070V-XG
Description
IC COMBO II PCM FILTER 28PLCC
Manufacturer
National Semiconductor
Series
COMBO®IIr
Type
PCM Codec/Filterr
Datasheet

Specifications of TP3070V-XG

Data Interface
PCM Audio Interface
Number Of Adcs / Dacs
1 / 1
Sigma Delta
No
Voltage - Supply, Analog
±5V
Voltage - Supply, Digital
±5V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
28-LCC (J-Lead)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
*TP3070V-XG

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© 1999 National Semiconductor Corporation
TP3070, TP3071, TP3070-X
COMBO
General Description
The TP3070 and TP3071 are second-generation combined
PCM CODEC and Filter devices optimized for digital switch-
ing applications on subscriber line and trunk cards. Using
advanced switched capacitor techniques, COMBO II com-
bines transmit bandpass and receive lowpass channel filters
with a companding PCM encoder and decoder. The devices
are A-law and µ-law selectable and employ a conventional
serial PCM interface capable of being clocked up to
4.096 MHz. A number of programmable functions may be
controlled via a serial control port.
Channel gains are programmable over a 25.4 dB range in
each direction, and a programmable filter is included to en-
able Hybrid Balancing to be adjusted to suit a wide range of
loop impedance conditions. Both transformer and active
SLIC interface circuits with real or complex termination im-
pedances can be balanced by this filter, with cancellation in
excess of 30 dB being readily achievable when measured
across the passband against standard test termination net-
works.
To enable COMBO II to interface to the SLIC control leads, a
number of programmable latches are included; each may be
configured as either an input or an output. The TP3070 pro-
vides 6 latches and the TP3071 5 latches.
COMBO
®
and TRI-STATE
®
®
are registered trademarks of National Semiconductor Corporation.
II Programmable PCM CODEC/Filter
DS008635
Features
n Complete CODEC and FILTER system including:
n Programmable Functions:
n Direct interface to solid-state SLICs
n Simplifies transformer SLIC; single winding secondary
n Standard serial control interface
n 80 mW operating power (typ)
n 1.5 mW standby power (typ)
n Designed for CCITT and LSSGR applications
n TTL and CMOS compatible digital interfaces
n Extended temperature versions available for −40˚C to
+85˚C (TP3070V-X)
— Transmit and receive PCM channel filters
— µ-law or A-law companding encoder and decoder
— Receive power amplifier drives 300
— 4.096 MHz serial PCM data (max)
— Transmit gain: 25.4 dB range, 0.1 dB steps
— Receive gain: 25.4 dB range, 0.1 dB steps
— Hybrid balance cancellation filter
— Time-slot assignment; up to 64 slots/frame
— 2 port assignment (TP3070)
— 6 interface latches (TP3070)
— A or µ-law
— Analog loopback
— Digital loopback
Note: See also AN-614, COMBO II application guide.
www.national.com
April 1994

Related parts for TP3070V-XG

TP3070V-XG Summary of contents

Page 1

... Standard serial control interface operating power (typ) n 1.5 mW standby power (typ) n Designed for CCITT and LSSGR applications n TTL and CMOS compatible digital interfaces n Extended temperature versions available for −40˚C to +85˚C (TP3070V-X) Note: See also AN-614, COMBO II application guide. April 1994 www.national.com ...

Page 2

... Block Diagram Connection Diagrams Order Number TP3070V (0˚C to +70˚C) Order Number TP3070V-X (−40˚C to +85˚C) See NS Package Number V28A www.national.com FIGURE 1. See NS Package Number J20A DS008635-4 See NS Package Number N20A Pin Descriptions Pin ± V +5V CC ± V −5V BB GND Ground. All analog and digital signals are referenced to this pin ...

Page 3

Pin Descriptions (Continued) Pin Description FS Receive Frame Sync input. Normally a pulse R or squarewave with an 8 kHz repetition rate is applied to this input to define the start of the receive time slot assigned to this device ...

Page 4

Functional Description POWER-DOWN STATE Following a period of activity in the powered-up state the power-down state may be re-entered by writing any of the control instructions into the serial control port with the “P” bit set to “1” as indicated ...

Page 5

Functional Description (Continued) TABLE 1. Programmable Register Instructions Function Single Byte Power-Up/Down Write Control Register Read-Back Control Register Write to Interface Latch Register Read Interface Latch Register Write Latch Direction Register Read Latch Direction Register Write Receive Gain Register Read ...

Page 6

Programmable Functions vice is powered-up or down by setting the “P” bit as indi- cated. When the power-up or down control is entered as a single byte instruction, bit one (1) must be reset When a power-up ...

Page 7

Programmable Functions µ255 law MSB = +Full Scale −Full ...

Page 8

Programmable Functions and convert to the binary equivalent. Some examples are given in Table 7 and a complete tabulation is given in Appen- dix I of AN-614. It should be noted that the Transmit (idle channel) Noise and Transmit Signal ...

Page 9

Programmable Functions FIGURE 2. Simplified Diagram of Hybrid Balance Circuit Three registers must be programmed in COMBO II to fully configure the Hybrid Balance Filter as follows: Register 1: select/de-select Hybrid Balance Filter; invert/non-invert cancellation signal; select/de-select Hybal2 filter section; ...

Page 10

Applications Information FIGURE 3. Typical Application with Monolithic SLIC www.national.com (Continued) 10 DS008635-7 ...

Page 11

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications GND CC Voltage 0. Voltage at any Digital Input V + 0.5V to GND − 0.5V CC Electrical Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚ ...

Page 12

Electrical Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing at T correlation with other production tests and/or product design and characterization. All signals ...

Page 13

Timing Specifications (Continued) Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing at T correlation with other production tests and/or product design and characterization. All ...

Page 14

Timing Specifications (Continued) Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing at T correlation with other production tests and/or product design and characterization. All ...

Page 15

Timing Diagrams (Continued) FIGURE 5. Delayed Data Timing Mode (Time Slot Zero Only) 15 DS008635-9 www.national.com ...

Page 16

Timing Diagrams (Continued) www.national.com 16 ...

Page 17

Transmission Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing dBm0 PCM code. Transmit and receive gains programmed for ...

Page 18

Transmission Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing dBm0 PCM code. Transmit and receive gains programmed for ...

Page 19

Transmission Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing dBm0 PCM code. Transmit and receive gains programmed for ...

Page 20

Transmission Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing dBm0 PCM code. Transmit and receive gains programmed for ...

Page 21

Transmission Characteristics Unless otherwise noted, limits printed in BOLD characters are guaranteed for V +70˚C (−40˚C to +85˚C for TP3070-X) by correlation with 100% electrical testing dBm0 PCM code. Transmit and receive gains programmed for ...

Page 22

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 reduced ...

Page 23

23 ...

Page 24

Physical Dimensions inches (millimeters) unless otherwise noted www.national.com Ceramic Dual-In-Line Package (J) Order Number TP3071J NS Package Number J20A Ceramic Dual-In-Line Package (J) Order Number TP3070J NS Package Number J28A 24 ...

Page 25

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) Molded Dual-In-Line Package (N) Order Number TP3071N NS Package Number N20A 25 www.national.com ...

Page 26

... National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. Plastic Leaded Chip Carrier (V) Order Number TP3070V or TP3070V-X NS Package Number V28A 2 ...

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