U2758M-B datasheet, PDF - EEWORLD Datasheet

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U2758M-B: DescriptionConsumer Circuit, PQFP100,; CategoryOther integrated circuit (IC) Consumption circuit; File Size290KB，28 Pages; ManufacturerTEMIC; Websitehttp://www.temic.de/

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U2758M-B Overview

Consumer Circuit, PQFP100,

U2758M-B Parametric

Parameter Name	Attribute value
Reach Compliance Code	unknown
Commercial integrated circuit types	CONSUMER CIRCUIT
JESD-30 code	R-PQFP-G100
Number of functions	1
Number of terminals	100
Package body material	PLASTIC/EPOXY
encapsulated code	QFP
Package shape	RECTANGULAR
Package form	FLATPACK
Certification status	Not Qualified
surface mount	YES
Terminal form	GULL WING
Terminal location	QUAD
Base Number Matches	1

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U2758M-B

DAB Channel Decoder

The channel decoder chip set for the DAB receiver

consists of 4 ICs (U2758B-B, U2757M-B, a dynamic

RAM 256

4 bit and a digital signal processor, e.g.,

MT DSP56166). The U2758M-B performs the program

selection, de-interleaving and Viterbi decoding.

Description

Electrostatic sensitive device.

Observe precautions for handling.

Features

Block Diagram

ADR DATA OE CAS RAS WRITE

TMODE TIN

TMUX TOUT

MRC_MODE

MRC_TOGGLE

DAB3_WFORMAT

DATA_MET 4

DATA_CLO

FRAME_SOUT

SOS_OUT

DAB3_DATA

De–interleaving

De–

puncturing

Control

CLK24576

RESET

VDD

VSS

Ordering Information

Extended Type Number

U2758M-BFT

Rev. A1, 07–May-98

Figure 1. Block diagram

Package

TQFP100

Preliminary Information

U2758M-B supports all 4 transmission modes of

EUREKA 147 DAB preliminary system definition

and ETSI DAB standard (ETS 300 401)

Processing of FIC and up to 6 application channels

Parallel use of up to 8 U2758M with separate appli-

cation selection possible

Functions:

– Program selection

– Frequency, time and block de-interleaving

– Depuncturing with

Equal Error Protection

(EEP)

and

Unequal Error Protection

(UEP) profiles

– Soft decision 384 kbit/s Viterbi decoder

– PRBS descrambler

– Reliability information calculation

– CRC checksum comparison

Interfaces:

– Metric interface: U2757M-B interface

– DRAM interface: 256

4-bit dynamic RAM

– DAB3 interface: source decoder interface

– L3-bus interface: microcontroller (MC) interface

Viterbi

decoder

algorithm

DAB3

Interface

DAB3_FLAG

DAB3_CLK

7 DAB3_W

MCDATA

Interface

MCMODE

MCCLK

14687

IC_SEL

Remarks

1 (28)

U2758M-B

Table of Contents

Pin Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1.1

Overview of Pins . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.1

De-interleaving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.2

Depuncturing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.3

Viterbi Decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.4

DAB3 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.5

MC Bus Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.1

Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.2

Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.3

Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3.4

DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.2

Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.3

Metric Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.4

DRAM Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5

MC Bus Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

L3 Bus Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.1

4.5.2

U2758M–B Operation in Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.3

Application Channel Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

UEP Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

EEP Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.4

Mode Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.5

Carrier Shift Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.6

Microcontroller Memory (MCM) Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fast Information Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Error Flag Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4.5.7

DAB3 Interface Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operation in Parallel Mode (MRC_MODE = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . .

Multiplex Reconfiguration Mode (MRC_MODE = 1) . . . . . . . . . . . . . . . . . . . . . . .

Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2 (28)

Rev. A1, 07-May-98

Preliminary Information

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