MAS9191EB MAS, MAS9191EB Datasheet

MAS9191EB

Manufacturer Part Number

MAS9191EB

Description

EVALUATION BOARD

Manufacturer

MAS

Datasheet

1.MAS9191EB.pdf (16 pages)

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DESCRIPTION

The Cellular Baseband evaluation board includes

MAS9191A

(Battery Management) and MS8323 (VCTCXO) ICs

with all needed external components and software.

The two regulators of MAS9129 provide all the power

for the board. The board has BNC connectors for

typical MAS9191A interfaces. By using customised

software and external RF parts the complete

evaluation of an AMPS/ ETACS/ NAMPS phone can

FEATURES

BLOCK DIAGRAM

Fully operational system (only NiCd/NiMH battery

or power supply needed)

Connectors to Rx,Tx,microphone, ear piece, etc.

Several test points for audio block

Battery charger input (9.0VDC/265mA)

Micro controller with 32kB SRAM, 64kB FLASH

Keyboard and 2-line/16-character LCD

RS-232-C interface for software downloading

External micro controller connector

3.4 - 9.0 NiCd/NiMH battery input or power supply

EVALUATION BOARD FOR CELLULAR BASEBAND ICs

(9.0 VDC/265mA)

(3.4 -9.0 VDC)

(Audio/Data

BATTERY

CHARGER

ON/OFF

SWITCH

INPUT

LCD DISPLAY

Audio/Data Processor and all necessary external components

Battery Management IC and battery protection/charging circuit

VCTCXO with DAC voltage control

uP with evaluation software

KEYPAD

MANAGEMENT

MAS9129

BATTERY

Processor),

LDO1

LDO2

3.0V/100mA

3.0V/50mA

WATCHDOG

XRESET

SRAM

32kB

MAS9129

CONTROLLER

FLASH

64kB

MICRO

MEASUREMENTS

be performed. A general purpose micro controller is

used to control the MAS9191A internal registers

through a serial bus interface. For the micro controller

there is 32kB SRAM, 64kB FLASH, an LCD, a keypad

and an RS-232-C interface for software downloading

to SRAM or FLASH. There is also a direct interface to

the MAS9191A serial bus allowing an external

controller to be used.

PORT

Regulator voltage and current

Receive and transmit frequency responses

Send and receive messages

Microphone and Rx audio levels

SAT detection and generation

Signalling Tone level

DTMF detection and generation

Gain control levels

Expander and compressor functionality

VCTCXO output signal

I/O

INTERFACE

SERIAL

RxD DTR TxD

RS232C

MAS9191A

AUDIO/DATA

PROCESSOR

MS8323

MAS9191EB

VCTCXO

Vcont

DAC

EAR PIECE

BUZZER

TEST

POINTS

MIC

DA9191EB.006

June 30,1997

OSC

OUT

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