MC145502P Motorola, MC145502P Datasheet

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MC145502P

Manufacturer Part Number
MC145502P
Description
PCM codec-filter mono-circuit
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
PCM Codec-Filter Mono-Circuit
per channel PCM Codec–Filter mono–circuits. These devices perform the voice
digitization and reconstruction as well as the band limiting and smoothing
required for PCM systems. The MC145500 and MC145503 are general
purpose devices that are offered in a 16–pin package. They are designed to
operate in both synchronous and asynchronous applications and contain an
on–chip precision reference voltage. The MC145501 is offered in an 18–pin
package and adds the capability of selecting from three peak overload voltages
(2.5, 3.15, and 3.78 V). The MC145505 is a synchronous device offered in a
16–pin DIP and wide body SOIC package intended for instrument use. The
MC145502 is the full–featured device which presents all of the options of the
chip. This device is packaged in a 22–pin DIP and a 28–pin chip carrier package
and contains all the features of the MC145500 and MC145501 plus several
more. Most of these features can be made available in a lower pin count
package tailored to a specific user’s application. Contact the factory for further
details.
MC14400/01/02/03/05 PCM mono–circuits and are upwardly compatible with
the MC14404/06/07 codecs and other industry standard codecs. They also
maintain compatibility with Motorola’s family of MC33120 and MC3419 SLIC
products.
due to its reliable low–power performance and proven capability for complex
analog/digital VLSI functions.
MC145500 (This Device is Not Recommended for New Designs)
MC145501 — All of the Above Plus:
(This Device is Not Recommended for New Designs)
MC145502 — All of the Above Plus:
MC145503 — All of the Above Features of the MC145500 Plus:
MC145505 — Same as MC145503 Except:
REV 1
9/95 (Replaces ADI1287)
MOTOROLA
The MC145500, MC145501, MC145502, MC145503, and MC145505 are all
These devices are pin–for–pin replacements for Motorola’s first generation of
The MC145500 family of PCM Codec–Filter mono–circuits utilizes CMOS
Motorola, Inc. 1995
16–Pin Package
Transmit Bandpass and Receive Low–Pass Filter On–Chip
Pin Selectable Mu–Law/A–Law Companding with Corresponding Data
Format
On–Chip Precision Reference Voltage (3.15 V)
Power Dissipation of 50 mW, Power–Down of 0.1 mW at
Automatic Prescaler Accepts 128 kHz, 1.536, 1.544, 2.048, and 2.56 MHz
for Internal Sequencing
18–Pin Package
Selectable Peak Overload Voltages (2.5, 3.15, 3.78 V)
Access to the Inverting Input of the TxI Input Operational Amplifier
22–Pin and 28–Pin Packages
Variable Data Clock Rates (64 kHz to 4.1 MHz)
Complete Access to the Three Terminal Transmit Input Operational
Amplifiers
An External Precision Reference May Be Used
16–Pin Package
Complete Access to the Three Terminal Transmit Input Operational Amplifiers
16–Pin Package
Common 64 kHz to 4.1 MHz Transmit/Receive Data Clock
MC145500 MC145501 MC145502 MC145503 MC145505
5 V
16
22
18
22
16
28 1
16
1
1
1
MC145500
MC145501
MC145502
MC145503
MC145505
1
1
1
CERAMIC PACKAGE
CERAMIC PACKAGE
CERAMIC PACKAGE
PLCC PACKAGE
Order this document
MC145500/03/05
SOG PACKAGE
MC145503/05
MC145503/05
PLASTIC DIP
PLASTIC DIP
FN SUFFIX
DW SUFFIX
CASE 751G
MC145502
CASE 776
MC145501
MC145502
MC145502
CASE 620
CASE 648
CASE 726
CASE 736
L SUFFIX
P SUFFIX
L SUFFIX
L SUFFIX
CASE 708
P SUFFIX
by MC145500/D
1

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MC145502P Summary of contents

Page 1

... Contact the factory for further details. These devices are pin–for–pin replacements for Motorola’s first generation of MC14400/01/02/03/05 PCM mono–circuits and are upwardly compatible with the MC14404/06/07 codecs and other industry standard codecs. They also maintain compatibility with Motorola’ ...

Page 2

... MC145500 MC145501 MC145502 MC145503 MC145505 2 D/A SHARED DAC 400 A 2 REF - RSI CIRCUITRY A/D FREQUENCY RDD RECEIVE SHIFT RCE REGISTER RDC 1, 12, 16, 20 CCI CCI PRESCALER MSI SEQUENCE V LS AND CONTROL PDI TDD TRANSMIT SHIFT REGISTER TDE TDC MOTOROLA ...

Page 3

... RDD + Tx 3 RxG 4 19 RCE TxI 4 RxO 5 18 RDC - TDC Mu/A 6 TxI 7 16 CCI PDI TDD Mu TDE PDI 10 13 MSI MOTOROLA PIN ASSIGNMENTS MC145505L RxO RDD RDD + RCE 14 RCE 13 RDC TxI 4 13 DCLK TDC - Tx CCI Mu TDD TDD 10 PDI TDE TDE 7 10 ...

Page 4

... V ref — — 1. ref — — V ref — Min Max Unit — — — 0 2.0 V — 1.0 — 3.0 — – 1.0 — – 3.0 — 1.6 — – 0.2 — MOTOROLA ...

Page 5

... Intermodulation Distortion of Two Frequencies of Amplitudes – – 21 dBm0 from the Range 300 to 3400 Hz NOTES: 1. Extrapolated from a 1020 Hz @ – 50 dBm0 distortion measurement to correct for encoder enhancement. 2. Selectively measured while the A/D is stimulated with 2667 Hz @ – 50 dBm0. MOTOROLA End–to–End Min Max Min — ...

Page 6

... V — – 1.0 — – 1.5 — — — — 200 pF — 100 mV — 150 100 225 k — – 1.0 V — 0. — — 0.8 mA — — — — dBC 65 — 55 — dBC 60 — MOTOROLA ...

Page 7

... RDD Hold Time from RDC Falling Edge TDE, TDC, RCE, RDC, RDD, DC, MSI, CCI Input Capacitance TDE,TDC, RCE, RDC, RDD, DC, MSI, CCI Input Current TDD Capacitance During High Impedance (TDE Low) TDD Input Current During High Impedance (TDE Low) MOTOROLA Min – 0 – 0 – ...

Page 8

... The MC145500 series PCM Codec–Filters have the co- dec, both presampling and reconstruction filters, a precision voltage reference on chip, and require no external compo- nents. There are five distinct versions of the Motorola MC145500 Series. MC145500 MC145501 MC145502 MC145503 MC145505 8 MC145500 The MC145500 PCM Codec– ...

Page 9

... MSI rising edge generates the internal transmit strobe which initiates an A/D conversion. The inter- nal transmit strobe also transfers a new PCM data word into MOTOROLA the transmit shift register (sign bit first) ready to be output at TDD. The TDE pin is the high impedance control for the transmit digital data (TDD) output ...

Page 10

... V of headroom between the internal converter reference has this same absolute valued minimum, also measured from V AG pin. The various modes of operation are summarized in Table 2. The RSI pin is functionally connected for the MC145500, MC145503, and MC145505 pinouts. 6, etc.), V AG may be F) should be used MOTOROLA ...

Page 11

... TxI corresponds to the peak con- verter reference voltage as described in the V ref and RSI pin descriptions. For 3.15 V reference, the + 3 dBm0 input should be 6.3 V peak–to–peak. MOTOROLA +Tx / –Tx Positive Tx Amplifier Input (MC145502/03/05 Only) / Negative Tx Amplifier Input (MC145501/02/03/05 Only) The Txl pin is the input to the transmit band– ...

Page 12

... Pin Level (Txl, RxO 7.56 V p– EXT (3. EXT ) V p– p– EXT ( EXT ) V p– 6.3 V p– EXT (2. EXT ) V p–p Mu 0.1 F ENABLE CLOCK RSI Peak Overload Voltage V LS 3.78 CMOS Logic Levels 2.50 TTL Levels 3.15 TTL Levels MOTOROLA ...

Page 13

... P1 * MSB TDD * Data output during this time will vary depending on TDC rate and TDE timing RCE t su4 t su3 RDC su5 DON'T RDD MSB CARE t w MSI t su7 t su6 CCI MOTOROLA Figure 2. Transmit Timing Diagram Figure 3. Receive Timing Diagram Figure 4. MSI/CCI Timing Diagram ...

Page 14

... PERFORMANCE - 0.4 - 0 Figure 10. MC145502 Gain vs Level A–Law Receive 2048 kHz CLOCK GUARANTEED PERFORMANCE - INPUT LEVEL AT 1.02 kHz C-MESSAGE WEIGHTED 2048 kHz CLOCK GUARANTEED PERFORMANCE - INPUT LEVEL AT 1.02 kHz 2048 kHz CLOCK TYPICAL PEFORMANCE - INPUT LEVEL PSEUDO NOISE (dBm0) MOTOROLA ...

Page 15

... Figure 13. MC145502 Power Supply Rejection Ratio Positive Transmit VAC = 250 mVrms, C–Message Weighted 70 TYPICAL PERFORMANCE FREQUENCY (kHz) Figure 15. MC145502 Power Supply Rejection Ratio Positive Receive VAC = 250 mVrms, C–Message Weighted MOTOROLA 40.0 TYPICAL PERFORMANCE 35.0 30.0 25.0 20 15.0 10 Figure 12. MC145502 Quantization Distortion ...

Page 16

... FREQUENCY (kHz) TYPICAL GUARANTEED PERFORMANCE PERFORMANCE 3.4 3.5 3.6 3.7 3.8 3.9 4.0 4.1 4.2 FREQUENCY (kHz) Response Transmit TYPICAL PERFORMANCE GUARANTEED PERFORMANCE 1.2 1.6 2.0 2.4 2.8 3.2 3.6 FREQUENCY (kHz) Filter Response Receive 4.1 4.2 MOTOROLA ...

Page 17

... 0.1 F GND Q8 255 256 2.048 MHz 8 kHz Figure 22. Simple Clock Circuit for Driving MC145500/01/02/03/05 Codec–Filters MOTOROLA 2.048 MHz 300 R OSC OSC OSC IN OUT 1 OUT 2 MC74HC4060 1/2 1/2 MC74HC73 MC74HC73 GND MC145500 MC145501 MC145502 MC145503 MC145505 2.048 MHz (TDC, RDC, CCI) ...

Page 18

... Figure 23. Hybrid Interfaces to the MC145503 PCM Codec–Filter Mono–Circuit MC145500 MC145501 MC145502 MC145503 MC145505 ( ø ø ø ( ø ø ø ( ø ø ø RxO RDD + Tx RCE TxI RDC - Tx TDC TDD Mu/A TDE PDI MC145503 RxO RDD + Tx RCE R1 TxI RDC - Tx TDC TDD Mu/A TDE PDI MC145503 MOTOROLA ...

Page 19

... – Gain = R1/R2 Rx Gain = 1 + R3/R4 R5, R6 Adjust Rx Gain with R3 Adjust Tx Gain with R1 24a. Universal Transformer Hybrid Using MC145502 24b. Single–Ended Hybrid Using MC145502 Figure 24. Hybrid Interfaces to the MC145502 PCM Codec–Filter Mono–Circuit MOTOROLA – ...

Page 20

... Figure 25. A Complete Single Party Channel Unit Using MC3419 SLIC and MC145503 PCM Mono–Circuit MC145500 MC145501 MC145502 MC145503 MC145505 20 MOTOROLA ...

Page 21

... MC145406 MC34119 MOTOROLA MC145428 MC145412 Figure 26. Digital Telephone Schematic MC145500 MC145501 MC145502 MC145503 MC145505 MC145426 MC145503 21 ...

Page 22

... Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values. 2. Digital code includes inversion of all magnitude bits. MC145500 MC145501 MC145502 MC145503 MC145505 22 Digital Code Sign Chord Chord Chord Step Normalized Decode Step Step Step Levels 8031 4191 2079 1023 495 231 MOTOROLA ...

Page 23

... NOTES: 1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values. 2. Digital code includes alternate bit inversion, as specified by CCITT. MOTOROLA Digital Code Sign Chord Chord Chord Step ...

Page 24

... B 0.250 0.270 6.35 6.85 C 0.145 0.175 3.69 4.44 D 0.015 0.021 0.39 0.53 F 0.040 0.70 1.02 1.77 G 0.100 BSC 2.54 BSC H 0.050 BSC 1.27 BSC J 0.008 0.015 0.21 0.38 K 0.110 0.130 2.80 3.30 L 0.295 0.305 7.50 7. 0.020 0.040 0.51 1.01 MOTOROLA ...

Page 25

... SEATING PLANE 0.25 (0.010) - -T- SEATING PLANE 0.25 (0.010) T MOTOROLA L SUFFIX CERAMIC PACKAGE CASE 726–04 (MC145501) 10 –B– 9 OPTIONAL LEAD CONFIGURATION (1, 9, 10, 18 0.25 (0.010 SUFFIX CERAMIC PACKAGE CASE 736–05 (MC145502) 12 OPTIONAL LEAD CONFIGURATION - 0.25 (0.010) ...

Page 26

... B 7.40 7.60 0.292 0.299 C 2.35 2.65 0.093 0.104 D 0.35 0.49 0.014 0.019 F 0.50 0.90 0.020 0.035 G 1.27 BSC 0.050 BSC J 0.25 0.32 0.010 0.012 K 0.10 0.25 0.004 0.009 10.05 10.55 0.395 0.415 R 0.25 0.75 0.010 0.029 MOTOROLA ...

Page 27

... DIMENSION H DOES NOT INCLUDE DAMBAR PROTRUSION OR INTRUSION. THE DAMBAR PROTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE GREATER THAN 0.037 (0.940). THE DAMBAR INTRUSION(S) SHALL NOT CAUSE THE H DIMENSION TO BE SMALLER THAN 0.025 (0.635). MOTOROLA FN SUFFIX PLCC PACKAGE CASE 776–02 (MC145502) B 0.007 (0.180) ...

Page 28

... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...

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