TP3064 Datasheet, PDF (1/18 Pages) National Semiconductor (TI) – Enhanced' Serial Interface CMOS CODEC/Filter COMBO

October 1991
TP3064 TP3067
‘‘Enhanced’’ Serial Interface
CMOS CODEC Filter COMBO
General Description
The TP3064 (m-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 g6 6V across a balanced 600X load
Also included is an Analog Loopback switch and a TS_X out-
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
Features
Y _{Complete CODEC and filtering system including}
Transmit high-pass and low-pass filtering
Receive low-pass filter with sin x x correction
Active RC noise filters
m-law or A-law compatible COder and DECoder
Internal precision voltage reference
Serial I O interface
Internal auto-zero circuitry
Receive push-pull power amplifiers
Y _{m-law TP3064}
Y _{A-law TP3067}
Y _{Designed for D3 D4 and CCITT applications}
Y g_{5V operation}
Y _{Low operating power typically 70 mW}
Y _{Power-down standby mode typically 3 mW}
Y _{Automatic power-down}
Y _{TTL or CMOS compatible digital interfaces}
Y _{Maximizes line interface card circuit density}
Block Diagram
C1995 National Semiconductor Corporation TL H 5070
FIGURE 1
TL H 5070 – 1
RRD-B30M115 Printed in U S A