MSM7578H Oki Semiconductor, MSM7578H Datasheet

no-image

MSM7578H

Manufacturer Part Number
MSM7578H
Description
Single Rail CODEC
Manufacturer
Oki Semiconductor
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MSM7578HGS
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSM7578HGS-KR1-7
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSM7578HMB
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSM7578HMS
Manufacturer:
OKI
Quantity:
20 000
Part Number:
MSM7578HMS-KDR1
Manufacturer:
OKI
Quantity:
1 000
E2U0017-28-81
¡ Semiconductor
¡ Semiconductor
MSM7578H/7578V/7579
Single Rail CODEC
GENERAL DESCRIPTION
The MSM7578 and MSM7579 are single-channel CODEC CMOS ICs for voice signals ranging
from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion.
Designed especially for a single-power supply and low-power applications, these devices are
particularly optimized for telephone terminals in digital wireless systems and ISDN systems.
The devices use the same transmission clocks as those used in the MSM7508B and MSM7509B.
The analog output signal can directly drive a piezoelectric type handset receiver.
FEATURES
• Single power supply: +5.0 V 5%
• Low power consumption
• ITU-T Companding law
• Built-in PLL eliminates a master clock
• Serial data rate: 64/128/256/512/1024/2048 kHz
• Adjustable transmit gain
• Built-in reference voltage supply
• Directly drive a line transformer of 600 W
• The 16-pin DIP and 24-pin SOP package products provide pin compatibility with the MSM7508B/
• The 20-pin SSOP package products have 1/3 the foot print of conventional products
• Package options:
Operating mode:
Power down mode:
7509B
16-pin plastic DIP (DIP16-P-300-2.54)
24-pin plastic SOP (SOP24-P-430-1.27-K)
20-pin plastic SSOP (SSOP20-P-250-0.95-K) (Product name : MSM7578HMS-K)
MSM7578H:
MSM7579:
MSM7578V:
96/192/384/768/1536/1544/200 kHz
m-law
A-law
m/A-law pin-selectable
0.05 mW Typ. 0.3 mW Max.
25 mW Typ.
47 mW Max.
(Product name : MSM7578HRS)
(Product name : MSM7579RS)
(Product name : MSM7578VRS)
(Product name : MSM7578HGS-K)
(Product name : MSM7578VGS-K)
(Product name : MSM7579GS-K)
(Product name : MSM7579MS-K)
(Product name : MSM7578VMS-K)
V
V
DD
DD
= 5 V
= 5 V
Previous version: Nov. 1996
This version: Aug. 1998
MSM7578H/7578V/7579
1/18

Related parts for MSM7578H

MSM7578H Summary of contents

Page 1

... The 20-pin SSOP package products have 1/3 the foot print of conventional products • Package options: 16-pin plastic DIP (DIP16-P-300-2.54) 24-pin plastic SOP (SOP24-P-430-1.27-K) 20-pin plastic SSOP (SSOP20-P-250-0.95-K) (Product name : MSM7578HMS-K) This version: Aug. 1998 MSM7578H/7578V/7579 Previous version: Nov. 1996 47 mW Max ...

Page 2

... Semiconductor BLOCK DIAGRAM – AIN– LPF AIN+ GSX SGC SG GEN SG – AOUT + SG 8th AD TCONT BPF CONV. AUTO PLL ZERO VR GEN RTIM 5th DA RCONT LPF CONV. PWD PWD Logic MSM7578H/7578V/7579 PCMOUT XSYNC BCLK RSYNC (ALAW) PCMIN PDN 2/18 ...

Page 3

... BCLK PDN RSYNC 11 14 XSYNC PCMIN 12 13 PCMOUT connect pin 24-Pin Plastic SOP MSM7578H/7578V/7579 SGC 1 20 AIN AIN– AOUT 3 18 GSX (ALAW ...

Page 4

... AIN– R2 – AIN AIN+ + AIN– – GSX above and below the signal ground PP MSM7578H/7578V/7579 R1 : variable R2 > > 1/(2 ¥ 3.14 ¥ 30 ¥ R1) Gain = R2/R1 £ > > > > ¥ 3.14 ¥ 30 ¥ R5) Gain = £ 10 4/18 ...

Page 5

... However, if the frequency characteristic of an applied system is not specified exactly, this device can operate in the range of 8 kHz 2 kHz, but the electrical characteristics in this specification are not guaranteed. Setting this signal to logic “1” or “0” drives both transmit and receive circuits to the power saving state. MSM7578H/7578V/7579 5/18 ...

Page 6

... This device is compatible with the ITU-T recommendation on coding law and output coding format. The MSM7579 (A-law) outputs the character signal, inverting the even bits. Input/Output Level +Full scale +0 –0 –Full scale PCMIN/PCMOUT MSM7578H (m-law) MSD ...

Page 7

... Provides only for the MSM7578VRS/7578VGS-K/7578VMS-K. The CODEC will operate in the m-law when this pin logic "0" level and the CODEC will operate in the A-law when this pin logic "1" level. The CODEC operates in the m-law if the pin is left open, since the pin is internally pulled down. MSM7578H/7578V/7579 7/18 ...

Page 8

... WS t — — Pull-up resistor DL C — DL Transmit gain stage, Gain off Transmit gain stage, Gain = 10 — XSYNC, RSYNC, BCLK MSM7578H/7578V/7579 Rating Unit –0 0 –0 0 –55 to +150 °C Min. Typ. Max. Unit 4 ...

Page 9

... LGX V OGX V Gain = 1 OSGX (V Symbol Condition R AOUT with respect to SG LAO C AOUT with respect to SG LAO V AOUT with respect to SG OAO V AOUT with respect to SG OSAO MSM7578H/7578V/7579 ( ±5 –30°C to +85°C) DD Min. Typ. Max. Unit — — 0.01 0.05 mA — 1.2 3.0 mA 2.2 — ...

Page 10

... AC Characteristics Parameter Transmit Frequency Response Receive Frequency Response Transmit Signal to Distortion Ratio Receive Signal to Distortion Ratio Transmit Gain Tracking Receive Gain Tracking *1 Psophometric filter is used *2 Upper is specified for the MSM7578H, lower for the MSM7579 Freq. Level Symbol Condition (Hz) (dBm0) Loss T1 60 ...

Page 11

... Temperature and Power) Absolute Delay Transmit Group Delay Receive Group Delay Crosstalk Attenuation *1 Psophometric filter is used *2 Upper is specified for the MSM7578H, lower for the MSM7579 *3 MSM7578H: All "1", MSM7579: "11010101" *4 Minimum value of the group delay distortion Freq. Level Symbol ...

Page 12

... IMD –4 2fa – 320 PSR PSR R 50 kHz XD1 C = 100 XD2 t XD3 MSM7578H/7578V/7579 ( ±5 –30°C to +85°C) DD Min. Typ. Max. Unit 30 32 — dB — –37.5 –35 dBmO — –52 –35 dBmO — 30 — ...

Page 13

... Fc, the Delay of the MSD bit is defined Receive Timing BCLK RSYNC t WS PCMIN MSD XD2 XD1 MSM7578H/7578V/7579 XD3 13/18 ...

Page 14

... GSX AOUT PCMIN AIN+ BCLK SG 0.1 mF XSYNC SGC RSYNC AG PDN MSM7578H/7578V/7579 Digital interface 5 V PCM signal output PCM data input PCM Shift Clock input 8 kHz SYNC signal input Power Down control input "1" = Operation "0" = Power down 14/18 ...

Page 15

... Use a low noise (particularly, low level type of high frequency spike noise or pulse noise) power supply to avoid erroneous operation and the degradation of the characteristics of these devices. pin not lower than –0.3 V even instantaneously to avoid latch- MSM7578H/7578V/7579 15/18 ...

Page 16

... Semiconductor PACKAGE DIMENSIONS DIP16-P-300-2.54 MSM7578H/7578V/7579 (Unit : mm) Package material Epoxy resin Lead frame material 42 alloy Pin treatment Solder plating more Solder plate thickness Package weight (g) 0.99 TYP. 16/18 ...

Page 17

... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM7578H/7578V/7579 (Unit : mm) Package material Epoxy resin ...

Page 18

... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM7578H/7578V/7579 (Unit : mm) Package material Epoxy resin ...

Related keywords