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TP3054 -
TP3052, TP3053, TP3054, TP3057, Enhanced Serial Interface CODEC/Filter COMBO Family
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Features
| | Complete CODEC and filtering system (COMBO) including:
| | | Transmit high-pass and low-pass filtering |
| | Receive low-pass filter with sin x/x correction |
| | Active RC noise filters |
| | µ-law or A-law compatible COder and DECoder |
| | Internal precision voltage reference |
| | Serial I/O interface |
| | Internal auto-zero circuitry |
| | µ-law, 16-pin-TP3054 |
| | A-law, 16-pin-TP3057 |
| | Designed for D3/D4 and CCITT applications |
| | ±5V operation |
| | Low operating power-typically 50 mW |
| | Power-down standby mode-typically 3 mW |
| | Automatic power-down |
| | TTL or CMOS compatible digital interfaces |
| | Maximizes line interface card circuit density |
| | Dual-In-Line or surface mount packages |
| | See also AN-370, "Techniques for Designing with CODEC/Filter COMBO Circuits"
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General Description
The TP3054, TP3057 family consists of µ-law and A-law monolithic PCM CODEC/filters utilizing the A/D and D/A conversion architecture shown in Figure 1, and a serial PCM interface. More...
| Parameters | Values |
| Temperature Min |
0 deg C |
| Temperature Max |
70 deg C |
Additional Resources
Application Notes

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Datasheet
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
TP3054N-X
| A30S54
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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General Description
The TP3054, TP3057 family consists of µ-law and A-law 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 double-poly CMOS process (microCMOS).
The encode portion of each device consists of an input gain adjust amplifier, an active RC pre-filter which eliminates very high frequency noise prior to entering a switched-capacitor band-pass filter that rejects signals below 200 Hz and above 3400 Hz. Also included are auto-zero circuitry and a companding coder which samples the filtered signal and encodes it in the companded µ-law or A-law PCM format. The decode portion of each device consists of an expanding decoder, which reconstructs the analog signal from the companded µ-law or A-law code, a low-pass filter which corrects for the sin x/x response of the decoder output and rejects signals above 3400 Hz followed by a single-ended power amplifier capable of driving low impedance loads. The devices require two 1.536 MHz, 1.544 MHz or 2.048 MHz transmit and receive master clocks, which may be asynchronous; transmit and receive bit clocks, which may vary from 64 kHz to 2.048 MHz; and transmit and receive frame sync pulses. The timing of the frame sync pulses and PCM data is compatible with both industry standard formats.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
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TP3054N | P2CMOS | 0 | 49735 | 0 | 1 | 4330000 | 2 | 556689228
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TP3054WM | P2CMOS | 0 | 49735 | 0 | 1 | 4330000 | 2 | 556689228
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TP3054WM-X | P2CMOS | 0 | 49735 | 0 | 1 | 4330000 | 2 | 556689228
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TP3054WMX | P2CMOS | 0 | 49735 | 0 | 1 | 4330000 | 2 | 556689228
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Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
The Long Term Failure Rates were calculated
at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress
temperature of 150°C to an application temperature of 55°C.
For more information on Reliability Metrics, please click here.
Application Notes
| Title | Size in Kbytes |
Date |
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| AN-370: AN-370: Techniques for Designing with CODEC/Filter COMBO Circuits (101 Kbytes; 04-Nov-1995) |
101 Kbytes |
25-May-06 |
Download |
| AN-503: AN-503: COMBO II Codec/Filter - Who Says Analog Can't Shrink (131 Kbytes; 04-Nov-1995) |
131 Kbytes |
25-May-06 |
Download |
More Application Notes
| Title | Size in Kbytes |
Date |
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| AN-316: The Subscriber Line Card in a Distributed Control Switching System |
171 Kbytes |
4-Nov-95 |
Download |
[Information as of 8-Nov-2009]
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