MC145567DW Motorola, MC145567DW Datasheet

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MC145567DW

Manufacturer Part Number
MC145567DW
Description
PCM codec-filter
Manufacturer
Motorola
Datasheet

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
PCM Codec-Filter
PCM Codec–Filters. These devices perform the voice digitization and
reconstruction as well as the band limiting and smoothing required for PCM
systems. They are designed to operate in both synchronous and asynchronous
applications and contain an on–chip precision voltage reference. The
MC145554 (Mu–Law) and MC145557 (A–Law) are general purpose devices
that are offered in 16–pin packages. The MC145564 (Mu–Law) and MC145567
(A–Law), offered in 20–pin packages, add the capability of analog loopback and
push–pull power amplifiers with adjustable gain.
to the encoder section. The encoder section immediately low–pass filters the
analog signal with an active R–C filter to eliminate very–high–frequency noise
from being modulated down to the pass band by the switched capacitor filter.
From the active R–C filter, the analog signal is converted to a differential signal.
From this point, all analog signal processing is done differentially. This allows
processing of an analog signal that is twice the amplitude allowed by a
single–ended design, which reduces the significance of noise to both the
inverted and non–inverted signal paths. Another advantage of this differential
design is that noise injected via the power supplies is a common–mode signal
that is cancelled when the inverted and non–inverted signals are recombined.
This dramatically improves the power supply rejection ratio.
passes the analog signal from 200 Hz to 3400 Hz before the signal is digitized
by the differential compressing A/D converter.
converter. The output of the D/A is low–pass filtered at 3400 Hz and sinX/X
compensated by a differential switched capacitor filter. The signal is then filtered
by an active R–C filter to eliminate the out–of–band energy of the switched
capacitor filter.
standard clock formats. They also maintain compatibility with Motorola’s family
of TSACs and MC3419/MC34120 SLIC products.
its reliable low–power performance and proven capability for complex
analog/digital VLSI functions.
MC145554/57 (16–Pin Package)
MC145564/67 (20–Pin Package) — All of the Features of the MC145554/57 Plus:
REV 1
9/95 (Replaces ADI1517)
MOTOROLA
The MC145554, MC145557, MC145564, and MC145567 are all per channel
These devices have an input operational amplifier whose output is the input
After the differential converter, a differential switched capacitor filter band
The decoder accepts PCM data and expands it using a differential D/A
These PCM Codec–Filters accept both long–frame and short–frame industry
The MC145554/57/64/67 family of PCM Codec–Filters utilizes CMOS due to
Motorola, Inc. 1995
Fully Differential Analog Circuit Design for Lowest Noise
Performance Specified for Extended Temperature Range of – 40 to + 85 C
Transmit Band–Pass and Receive Low–Pass Filters On–Chip
Active R–C Pre–Filtering and Post–Filtering
Mu–Law Companding MC145554
A–Law Companding MC145557
On–Chip Precision Voltage Reference (2.5 V)
Typical Power Dissipation of 40 mW, Power Down of 1.0 mW at
Mu–Law Companding MC145564
A–Law Companding MC145567
Push–Pull Power Drivers with External Gain Adjust
Analog Loopback
5 V
MC145554 MC145557 MC145564 MC145567
20
16
20
20
16
16
1
1
1
1
1
MC145554
MC145557
MC145564
MC145567
1
CERAMIC PACKAGE
CERAMIC PACKAGE
SOG PACKAGE
Order this document
SOG PACKAGE
MC145564/67
MC145554/57
MC145554/57
MC145554/57
MC145564/67
MC145564/67
DW SUFFIX
PLASTIC DIP
PLASTIC DIP
CASE 751D
DW SUFFIX
CASE 751G
CASE 620
CASE 648
CASE 732
CASE 738
L SUFFIX
P SUFFIX
L SUFFIX
P SUFFIX
by MC145554/D
1

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MC145567DW Summary of contents

Page 1

... R–C filter to eliminate the out–of–band energy of the switched capacitor filter. These PCM Codec–Filters accept both long–frame and short–frame industry standard clock formats. They also maintain compatibility with Motorola’s family of TSACs and MC3419/MC34120 SLIC products. The MC145554/57/64/67 family of PCM Codec–Filters utilizes CMOS due to its reliable low– ...

Page 2

... – ANLB BCLK MCLK X MCLK R / BCLK R / PDN CLKSEL FS R MCLK X BCLK X INTERNAL SEQUENCING TS X AND CONTROL TRANSMIT SAR SHIFT D X REG 8 REG RECEIVE RECEIVE 8 SHIFT D R LATCH REG MOTOROLA ...

Page 3

... The MC145554/57/64/67 PCM Codec–Filters have the codec, both presampling and reconstruction filters, and a precision voltage reference on–chip, and require no external components. MOTOROLA PIN DESCRIPTION DIGITAL FS R Receive Frame Sync This kHz enable that must be synchronous with BCLK R ...

Page 4

... The output of the smoothing filter is a power amplifier that is capable of driving a 600 load. The MC145564 and MC145567 add a pair of power amplifiers that are connected in a push–pull configu- ration; two external resistors set the gain of both of the to 3.3 V peak. load. MOTOROLA ...

Page 5

... UDLT family of digital loop transceivers. The Short Frame Sync mode is compatible with the IDL (Interchip Digital Link) serial format used in Motorola’s ISDN family and by other companies in their telecommunication devices. These codec–filters use the length of the transmit frame sync ( determine the timing format for both transmit and receive unless the part is operating in the receive half– ...

Page 6

... This device contains circuitry to protect ( out ) Unused inputs must always be tied to an Typ Max Unit 5.0 5.25 V – 5.0 – 5. 1.0 3.0 mW 2.0 5.0 1.0 3.0 Min Max Unit — 0.6 V 2.2 — V — 0.4 V 2.4 — – 0.5 — – – – MOTOROLA ...

Page 7

... VPO–) Power Supply Rejection (VPO– Connected to VPI) VPO + or VPO – to GNDA Differential Power Supply Rejection (VPO– Connected to VPI) MOTOROLA Min – – – ...

Page 8

... MOTOROLA ...

Page 9

... Setup Time from High to BCLK X (BCLK R ) Low in Short Frame Hold Time from BCLK X (BCLK R ) Low ( Low in Short Frame Hold Time from 2nd Period of BCLK X (BCLK R ) Low ( Low in Long Frame MOTOROLA Symbol Min MCLK X or MCLK — ...

Page 10

... MSB MC145554 MC145557 MC145564 MC145567 10 t w(M) t su(MFB) t su(BRM d(BD) CH1 CH2 CH3 ST1 h(BD) t su(DB) CH1 CH2 CH3 ST1 Figure 1. Short Frame Sync Timing t w(M) t d(ZC) t w( d(ZC) ST2 ST3 LSB h(BD) ST2 ST3 LSB MOTOROLA ...

Page 11

... MCLK X MCLK R BCLK su(FB) t h(BF d(ZF) t d(ZF MSB 1 BCLK R t h(BF) t su(FB MSB MOTOROLA t su(MFB) t su(BRM h(BFI) t d(BD) CH1 CH2 CH3 ST1 h(BFI) t h(BD) t su(DB) CH1 CH2 CH3 ST1 Figure 2. Long Frame Sync Timing MC145554 MC145557 MC145564 MC145567 ...

Page 12

... MCLK R / PDN MCLK X 1 MODE DDO EDO 3 DDE EOE 4 DDC EDC MC145532 5 DDI EDI 6 DIE EIE 7 SPC PD/RESET ADP Figure 3. ADPCM Transcoder Application 16 15 ANALOG TIME SLOT kHz ADPCM OUT 20.48 MHz 9 MOTOROLA ...

Page 13

... MJD243 1N4002 2 1 1N4002 – NOTE: Six resistors and two capacitors on the two–wire side can be 5% tolerance. Figure 4. A Complete Single Party Channel Unit Using MC145554/57 PCM Codec–Filter and MC33120 SLIC MOTOROLA MC33120 PDI/ST2 ...

Page 14

... A10 66 A11 65 A12 A13 63 A14 62 4 A15 61 12, 5 OWN0 42 OWN1 43 10 MCLK R LDS 31 1 UDS 32 RST 33 IACK 34 – IRQ 36 DTACK 37 BERR 51, 36 BGACK 41 MOTOROLA ...

Page 15

... NOTES: 1. Characteristics are symmetrical about analog zero with sign bit = 0 for negative analog values. 2. Digital code includes inversion of all magnitude bits. MOTOROLA Digital Code Sign Chord Chord Chord Step ...

Page 16

... Normalized Decode Step Step Step Levels 4032 2112 1056 528 264 132 MOTOROLA ...

Page 17

... SEATING PLANE 0.25 (0.010) M –A– 0.25 (0.010) MOTOROLA PACKAGE DIMENSIONS L SUFFIX CERAMIC PACKAGE CASE 620–09 (MC145554/57 0.25 (0.010 SUFFIX PLASTIC DIP CASE 648–08 ...

Page 18

... DIMENSIONS A AND B INCLUDE MENISCUS. MILLIMETERS INCHES DIM MIN MAX MIN MAX A 23.88 25.15 0.940 0.990 B 6.60 7.49 0.260 0.295 C 3.81 5.08 0.150 0.200 D 0.38 0.56 0.015 0.022 F 1.40 1.65 0.055 0.065 G 2.54 BSC 0.100 BSC H 0.51 1.27 0.020 0.050 J 0.20 0.30 0.008 0.012 K 3.18 4.06 0.125 0.160 L 7.62 BSC 0.300 BSC 0.25 1.02 0.010 0.040 MOTOROLA ...

Page 19

... SEATING PLANE –A– –B– 20X 0.010 (0.25 18X K MOTOROLA P SUFFIX PLASTIC DIP CASE 738–03 (MC145564/67 0.25 (0.010) M 0.25 (0.010 SUFFIX SOG PACKAGE CASE 751D–04 (MC145564/67) ...

Page 20

... 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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